/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_opt-floodmax.5.1.ufo.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 19:01:06,879 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 19:01:06,882 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 19:01:06,920 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 19:01:06,920 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 19:01:06,927 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 19:01:06,930 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 19:01:06,932 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 19:01:06,935 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 19:01:06,938 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 19:01:06,939 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 19:01:06,940 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 19:01:06,941 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 19:01:06,943 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 19:01:06,946 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 19:01:06,947 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 19:01:06,948 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 19:01:06,949 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 19:01:06,951 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 19:01:06,957 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 19:01:06,959 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 19:01:06,960 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 19:01:06,961 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 19:01:06,962 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 19:01:06,974 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 19:01:06,974 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 19:01:06,974 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 19:01:06,975 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 19:01:06,976 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 19:01:06,978 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 19:01:06,979 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 19:01:06,979 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 19:01:06,980 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 19:01:06,981 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 19:01:06,981 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 19:01:06,982 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 19:01:06,987 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 19:01:06,988 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 19:01:06,988 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 19:01:06,989 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 19:01:06,991 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 19:01:06,992 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 19:01:07,024 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 19:01:07,024 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 19:01:07,025 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 19:01:07,026 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 19:01:07,026 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 19:01:07,030 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 19:01:07,030 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 19:01:07,030 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 19:01:07,031 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 19:01:07,031 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 19:01:07,031 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 19:01:07,031 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 19:01:07,032 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 19:01:07,032 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 19:01:07,032 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 19:01:07,032 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 19:01:07,032 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 19:01:07,033 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 19:01:07,033 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 19:01:07,034 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 19:01:07,034 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 19:01:07,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 19:01:07,035 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 19:01:07,035 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 19:01:07,035 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 19:01:07,035 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 19:01:07,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 19:01:07,036 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 19:01:07,036 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 19:01:07,036 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 19:01:07,339 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 19:01:07,350 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 19:01:07,354 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 19:01:07,355 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 19:01:07,355 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 19:01:07,356 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.5.1.ufo.BOUNDED-10.pals.c [2020-10-12 19:01:07,417 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/212d325dc/e72825a0658945b2a84a80fd07969789/FLAGaa793bf98 [2020-10-12 19:01:07,978 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 19:01:07,979 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.5.1.ufo.BOUNDED-10.pals.c [2020-10-12 19:01:07,999 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/212d325dc/e72825a0658945b2a84a80fd07969789/FLAGaa793bf98 [2020-10-12 19:01:08,244 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/212d325dc/e72825a0658945b2a84a80fd07969789 [2020-10-12 19:01:08,252 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 19:01:08,254 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 19:01:08,255 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 19:01:08,255 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 19:01:08,259 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 19:01:08,260 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:01:08" (1/1) ... [2020-10-12 19:01:08,263 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d733b1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:01:08, skipping insertion in model container [2020-10-12 19:01:08,263 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:01:08" (1/1) ... [2020-10-12 19:01:08,271 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 19:01:08,329 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 19:01:08,865 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 19:01:08,887 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 19:01:09,072 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 19:01:09,093 INFO L208 MainTranslator]: Completed translation [2020-10-12 19:01:09,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:01:09 WrapperNode [2020-10-12 19:01:09,093 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 19:01:09,094 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 19:01:09,094 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 19:01:09,094 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 19:01:09,110 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:01:09" (1/1) ... [2020-10-12 19:01:09,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:01:09" (1/1) ... [2020-10-12 19:01:09,132 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:01:09" (1/1) ... [2020-10-12 19:01:09,132 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:01:09" (1/1) ... [2020-10-12 19:01:09,185 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:01:09" (1/1) ... [2020-10-12 19:01:09,208 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:01:09" (1/1) ... [2020-10-12 19:01:09,214 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:01:09" (1/1) ... [2020-10-12 19:01:09,228 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 19:01:09,228 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 19:01:09,228 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 19:01:09,229 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 19:01:09,229 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:01:09" (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 19:01:09,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 19:01:09,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 19:01:09,297 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-12 19:01:09,297 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-12 19:01:09,298 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-12 19:01:09,298 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-12 19:01:09,298 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-12 19:01:09,298 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-12 19:01:09,299 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-12 19:01:09,299 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-12 19:01:09,299 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 19:01:09,299 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-12 19:01:09,299 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 19:01:09,300 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-12 19:01:09,300 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-12 19:01:09,300 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-12 19:01:09,300 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 19:01:09,301 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-12 19:01:09,301 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-12 19:01:09,301 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-12 19:01:09,301 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-12 19:01:09,301 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-12 19:01:09,301 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-12 19:01:09,302 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-12 19:01:09,302 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-12 19:01:09,302 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-12 19:01:09,302 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-12 19:01:09,302 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 19:01:09,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 19:01:09,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 19:01:11,307 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 19:01:11,307 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 19:01:11,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:01:11 BoogieIcfgContainer [2020-10-12 19:01:11,318 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 19:01:11,322 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 19:01:11,322 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 19:01:11,326 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 19:01:11,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 07:01:08" (1/3) ... [2020-10-12 19:01:11,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c70e01e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:01:11, skipping insertion in model container [2020-10-12 19:01:11,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:01:09" (2/3) ... [2020-10-12 19:01:11,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c70e01e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:01:11, skipping insertion in model container [2020-10-12 19:01:11,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:01:11" (3/3) ... [2020-10-12 19:01:11,331 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.5.1.ufo.BOUNDED-10.pals.c [2020-10-12 19:01:11,341 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 19:01:11,350 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 19:01:11,363 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 19:01:11,386 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 19:01:11,386 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 19:01:11,386 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 19:01:11,386 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 19:01:11,387 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 19:01:11,387 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 19:01:11,387 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 19:01:11,387 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 19:01:11,420 INFO L276 IsEmpty]: Start isEmpty. Operand 753 states. [2020-10-12 19:01:11,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-10-12 19:01:11,450 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:01:11,451 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:01:11,452 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:01:11,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:01:11,458 INFO L82 PathProgramCache]: Analyzing trace with hash 634524836, now seen corresponding path program 1 times [2020-10-12 19:01:11,467 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:01:11,467 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1126283233] [2020-10-12 19:01:11,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:01:12,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:12,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:13,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:13,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-10-12 19:01:13,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:13,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1135 [2020-10-12 19:01:13,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:13,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:01:13,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 145 [2020-10-12 19:01:13,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:01:13,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 19:01:14,133 WARN L193 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2020-10-12 19:01:14,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:01:14,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:14,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:14,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:14,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:01:14,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:14,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 19:01:14,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:14,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:01:14,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:01:14,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:01:14,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:14,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 19:01:14,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:14,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:14,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:14,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 19:01:14,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:14,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-10-12 19:01:14,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:14,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:01:14,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:01:14,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:01:14,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:14,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-12 19:01:14,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:14,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:14,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:14,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 19:01:14,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:14,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 19:01:14,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:14,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:01:14,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 19:01:14,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:01:14,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:14,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-12 19:01:14,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:14,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:14,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:14,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:01:14,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:14,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 19:01:14,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:14,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:01:14,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 19:01:14,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:01:14,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:01:14,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-12 19:01:14,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:14,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:14,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:14,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:01:14,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:14,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 19:01:14,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:14,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:01:14,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 19:01:14,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:01:14,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:14,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-12 19:01:14,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:14,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:14,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:14,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:01:14,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:14,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 19:01:14,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:14,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:01:14,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 19:01:14,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:01:14,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:14,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-10-12 19:01:14,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:14,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:14,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:14,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:01:14,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:14,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 19:01:14,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:14,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:01:14,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 19:01:14,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:01:14,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:14,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-10-12 19:01:14,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:14,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:14,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:14,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:01:14,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:14,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 19:01:14,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:14,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:01:14,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 19:01:14,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:01:14,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:14,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-10-12 19:01:14,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:14,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:14,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:14,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 19:01:14,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:14,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 19:01:14,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:14,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:01:14,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 19:01:14,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:01:14,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:01:14,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:01:14,939 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1126283233] [2020-10-12 19:01:14,941 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:01:14,942 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-12 19:01:14,943 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590963465] [2020-10-12 19:01:14,948 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 19:01:14,948 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:01:14,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 19:01:14,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-12 19:01:14,965 INFO L87 Difference]: Start difference. First operand 753 states. Second operand 8 states. [2020-10-12 19:01:17,570 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:01:18,187 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:01:18,857 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:01:19,516 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:01:20,068 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:01:20,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:01:20,642 INFO L93 Difference]: Finished difference Result 1031 states and 1815 transitions. [2020-10-12 19:01:20,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 19:01:20,644 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 187 [2020-10-12 19:01:20,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:01:20,671 INFO L225 Difference]: With dead ends: 1031 [2020-10-12 19:01:20,671 INFO L226 Difference]: Without dead ends: 813 [2020-10-12 19:01:20,677 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-10-12 19:01:20,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2020-10-12 19:01:20,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 748. [2020-10-12 19:01:20,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 748 states. [2020-10-12 19:01:20,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 1347 transitions. [2020-10-12 19:01:20,879 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 1347 transitions. Word has length 187 [2020-10-12 19:01:20,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:01:20,880 INFO L479 AbstractCegarLoop]: Abstraction has 748 states and 1347 transitions. [2020-10-12 19:01:20,881 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 19:01:20,881 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 1347 transitions. [2020-10-12 19:01:20,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-10-12 19:01:20,887 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:01:20,888 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:01:20,888 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 19:01:20,888 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:01:20,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:01:20,889 INFO L82 PathProgramCache]: Analyzing trace with hash -2122102430, now seen corresponding path program 1 times [2020-10-12 19:01:20,889 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:01:20,890 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [192239262] [2020-10-12 19:01:20,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:01:21,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:21,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:24,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:24,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-10-12 19:01:24,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:24,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3177 [2020-10-12 19:01:24,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:24,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 19:01:24,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-12 19:01:24,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 19:01:24,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:01:25,287 WARN L193 SmtUtils]: Spent 782.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2020-10-12 19:01:25,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:01:25,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:25,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:25,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:25,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:01:25,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:25,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-12 19:01:25,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:25,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:01:25,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:01:25,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:01:25,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:25,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 19:01:25,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:25,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:26,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:26,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 19:01:26,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:26,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 915 [2020-10-12 19:01:26,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:26,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:01:26,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:01:26,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-12 19:01:26,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:01:26,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-12 19:01:26,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:26,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:26,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:26,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 19:01:26,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:26,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 19:01:26,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:26,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:01:26,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 19:01:26,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 19:01:26,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 11 [2020-10-12 19:01:26,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-12 19:01:26,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:26,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:26,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:26,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:01:26,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:26,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 19:01:26,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:26,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:01:26,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 19:01:26,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:01:26,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:26,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-12 19:01:26,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:26,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:26,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:26,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:01:26,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:26,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 19:01:26,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:26,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:01:26,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 19:01:26,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:01:26,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:26,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-12 19:01:26,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:26,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:26,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:26,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:01:26,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:26,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 19:01:26,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:26,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:01:26,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 19:01:26,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:01:26,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:26,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-10-12 19:01:26,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:26,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:26,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:26,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:01:26,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:26,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 19:01:26,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:26,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:01:26,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 19:01:26,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:01:26,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:26,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-10-12 19:01:26,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:26,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:26,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:26,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:01:26,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:26,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 19:01:26,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:26,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:01:26,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 19:01:26,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:01:26,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:26,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-10-12 19:01:26,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:26,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:26,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:26,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 19:01:26,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:26,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 19:01:26,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:26,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:01:26,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 19:01:26,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:01:26,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 19:01:26,996 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 19:01:26,997 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [192239262] [2020-10-12 19:01:26,997 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:01:26,997 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 19:01:26,998 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474460451] [2020-10-12 19:01:27,004 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 19:01:27,005 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:01:27,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 19:01:27,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-12 19:01:27,006 INFO L87 Difference]: Start difference. First operand 748 states and 1347 transitions. Second operand 14 states. [2020-10-12 19:01:34,743 WARN L193 SmtUtils]: Spent 590.00 ms on a formula simplification that was a NOOP. DAG size: 373 [2020-10-12 19:01:35,442 WARN L193 SmtUtils]: Spent 615.00 ms on a formula simplification that was a NOOP. DAG size: 375 [2020-10-12 19:01:36,298 WARN L193 SmtUtils]: Spent 615.00 ms on a formula simplification that was a NOOP. DAG size: 381 [2020-10-12 19:01:36,973 WARN L193 SmtUtils]: Spent 634.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2020-10-12 19:01:37,825 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:01:38,537 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:01:39,334 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:01:40,173 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:01:40,938 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:01:42,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:01:42,274 INFO L93 Difference]: Finished difference Result 1035 states and 1821 transitions. [2020-10-12 19:01:42,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 19:01:42,275 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 187 [2020-10-12 19:01:42,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:01:42,282 INFO L225 Difference]: With dead ends: 1035 [2020-10-12 19:01:42,282 INFO L226 Difference]: Without dead ends: 824 [2020-10-12 19:01:42,285 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2020-10-12 19:01:42,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2020-10-12 19:01:42,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 748. [2020-10-12 19:01:42,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 748 states. [2020-10-12 19:01:42,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 1302 transitions. [2020-10-12 19:01:42,398 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 1302 transitions. Word has length 187 [2020-10-12 19:01:42,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:01:42,399 INFO L479 AbstractCegarLoop]: Abstraction has 748 states and 1302 transitions. [2020-10-12 19:01:42,399 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 19:01:42,399 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 1302 transitions. [2020-10-12 19:01:42,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2020-10-12 19:01:42,404 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:01:42,404 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:01:42,404 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 19:01:42,404 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:01:42,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:01:42,405 INFO L82 PathProgramCache]: Analyzing trace with hash 860163226, now seen corresponding path program 1 times [2020-10-12 19:01:42,405 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:01:42,405 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [835552191] [2020-10-12 19:01:42,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:01:42,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:42,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:42,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:43,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:44,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:47,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:47,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-12 19:01:47,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 19:01:47,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5061 [2020-10-12 19:01:47,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:47,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:01:47,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 151 [2020-10-12 19:01:47,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-12 19:01:47,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 19:01:48,362 WARN L193 SmtUtils]: Spent 656.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2020-10-12 19:01:48,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:01:48,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:48,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:48,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:48,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:01:48,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:48,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 19:01:48,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:48,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:01:48,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:01:48,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:01:48,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:48,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 19:01:48,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:48,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:48,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:48,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-12 19:01:48,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:48,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 342 [2020-10-12 19:01:48,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:48,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:01:48,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:01:48,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-12 19:01:48,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:01:48,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-10-12 19:01:48,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:48,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:48,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:48,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 19:01:48,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:48,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 19:01:48,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:48,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:01:48,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:01:48,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 19:01:48,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:01:48,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-10-12 19:01:48,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:48,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:48,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:48,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:01:48,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:48,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 19:01:48,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:48,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:01:48,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 19:01:48,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 19:01:48,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:49,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-10-12 19:01:49,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:49,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:49,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:49,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:01:49,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:49,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 19:01:49,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:49,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:01:49,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 19:01:49,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:01:49,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:49,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-10-12 19:01:49,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:49,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:49,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:49,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:01:49,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:49,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 19:01:49,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:49,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:01:49,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 19:01:49,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:01:49,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:49,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-12 19:01:49,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:49,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:49,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:49,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:01:49,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:49,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 19:01:49,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:49,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:01:49,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 19:01:49,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:01:49,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:49,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-10-12 19:01:49,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:49,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:49,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:49,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:01:49,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:49,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 19:01:49,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:49,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:01:49,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 19:01:49,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:01:49,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:49,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-12 19:01:49,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:49,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:49,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:49,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 19:01:49,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:49,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 19:01:49,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:49,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:01:49,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 19:01:49,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:01:49,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:49,299 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 19:01:49,300 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [835552191] [2020-10-12 19:01:49,300 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:01:49,300 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 19:01:49,300 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920911786] [2020-10-12 19:01:49,301 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 19:01:49,302 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:01:49,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 19:01:49,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-12 19:01:49,302 INFO L87 Difference]: Start difference. First operand 748 states and 1302 transitions. Second operand 11 states. [2020-10-12 19:01:50,176 WARN L193 SmtUtils]: Spent 804.00 ms on a formula simplification that was a NOOP. DAG size: 372 [2020-10-12 19:01:55,547 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:01:55,995 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 19:01:56,440 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 19:01:56,642 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:01:57,379 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 19:01:57,627 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:01:58,494 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 19:01:58,718 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:01:59,764 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 19:02:00,012 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:02:01,603 WARN L193 SmtUtils]: Spent 584.00 ms on a formula simplification that was a NOOP. DAG size: 372 [2020-10-12 19:02:02,161 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 19:02:02,484 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 19:02:02,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:02:02,537 INFO L93 Difference]: Finished difference Result 1285 states and 2192 transitions. [2020-10-12 19:02:02,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-12 19:02:02,537 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 231 [2020-10-12 19:02:02,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:02:02,546 INFO L225 Difference]: With dead ends: 1285 [2020-10-12 19:02:02,546 INFO L226 Difference]: Without dead ends: 1080 [2020-10-12 19:02:02,548 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2020-10-12 19:02:02,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1080 states. [2020-10-12 19:02:02,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1080 to 942. [2020-10-12 19:02:02,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 942 states. [2020-10-12 19:02:02,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1615 transitions. [2020-10-12 19:02:02,678 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1615 transitions. Word has length 231 [2020-10-12 19:02:02,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:02:02,679 INFO L479 AbstractCegarLoop]: Abstraction has 942 states and 1615 transitions. [2020-10-12 19:02:02,679 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 19:02:02,679 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1615 transitions. [2020-10-12 19:02:02,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-10-12 19:02:02,685 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:02:02,685 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:02:02,685 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 19:02:02,686 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:02:02,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:02:02,686 INFO L82 PathProgramCache]: Analyzing trace with hash 1948079810, now seen corresponding path program 1 times [2020-10-12 19:02:02,686 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:02:02,686 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1292766924] [2020-10-12 19:02:02,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:02:02,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:02,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:03,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:03,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:03,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:04,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:04,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:07,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:07,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 259 [2020-10-12 19:02:07,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 19:02:07,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-12 19:02:07,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:07,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:02:07,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-10-12 19:02:07,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-12 19:02:07,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:08,481 WARN L193 SmtUtils]: Spent 563.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2020-10-12 19:02:08,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:02:08,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:08,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:08,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:08,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:02:08,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:08,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-12 19:02:08,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:08,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:02:08,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:02:08,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:02:08,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:08,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 19:02:08,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:08,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:08,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:08,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-12 19:02:08,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:08,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 213 [2020-10-12 19:02:08,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:08,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:02:08,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:02:08,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-12 19:02:08,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:08,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-10-12 19:02:08,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:08,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:08,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:08,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 19:02:08,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:08,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 19:02:08,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:08,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:02:08,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:02:08,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 19:02:08,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:08,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-10-12 19:02:08,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:08,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:08,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:08,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 19:02:08,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:08,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 19:02:08,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:08,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:02:08,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:02:08,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 19:02:08,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:08,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-10-12 19:02:08,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:08,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:08,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:08,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:02:08,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:08,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 19:02:08,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:08,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:02:08,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 19:02:08,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 19:02:08,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:09,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2020-10-12 19:02:09,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:09,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:09,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:09,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:02:09,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:09,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 19:02:09,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:09,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:02:09,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 19:02:09,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:02:09,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:09,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-10-12 19:02:09,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:09,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:09,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:09,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:02:09,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:09,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 19:02:09,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:09,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:02:09,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 19:02:09,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:02:09,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:09,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2020-10-12 19:02:09,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:09,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:09,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:09,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:02:09,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:09,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 19:02:09,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:09,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:02:09,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 19:02:09,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:02:09,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:09,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2020-10-12 19:02:09,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:09,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:09,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:09,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 19:02:09,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:09,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 19:02:09,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:09,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:02:09,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 19:02:09,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:02:09,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:09,279 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 19:02:09,280 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1292766924] [2020-10-12 19:02:09,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:02:09,280 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 19:02:09,280 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649250791] [2020-10-12 19:02:09,281 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 19:02:09,281 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:02:09,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 19:02:09,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-12 19:02:09,282 INFO L87 Difference]: Start difference. First operand 942 states and 1615 transitions. Second operand 11 states. [2020-10-12 19:02:09,917 WARN L193 SmtUtils]: Spent 583.00 ms on a formula simplification that was a NOOP. DAG size: 372 [2020-10-12 19:02:15,300 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 19:02:15,953 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:02:16,419 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 19:02:16,804 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 19:02:17,012 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:02:17,701 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 19:02:17,931 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:02:18,673 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 19:02:18,920 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:02:20,163 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:02:21,041 WARN L193 SmtUtils]: Spent 583.00 ms on a formula simplification that was a NOOP. DAG size: 372 [2020-10-12 19:02:21,262 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 19:02:21,563 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 19:02:21,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:02:21,606 INFO L93 Difference]: Finished difference Result 1986 states and 3329 transitions. [2020-10-12 19:02:21,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-12 19:02:21,606 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 235 [2020-10-12 19:02:21,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:02:21,614 INFO L225 Difference]: With dead ends: 1986 [2020-10-12 19:02:21,615 INFO L226 Difference]: Without dead ends: 1587 [2020-10-12 19:02:21,617 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2020-10-12 19:02:21,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1587 states. [2020-10-12 19:02:21,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1587 to 1319. [2020-10-12 19:02:21,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1319 states. [2020-10-12 19:02:21,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1319 states to 1319 states and 2226 transitions. [2020-10-12 19:02:21,761 INFO L78 Accepts]: Start accepts. Automaton has 1319 states and 2226 transitions. Word has length 235 [2020-10-12 19:02:21,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:02:21,761 INFO L479 AbstractCegarLoop]: Abstraction has 1319 states and 2226 transitions. [2020-10-12 19:02:21,761 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 19:02:21,762 INFO L276 IsEmpty]: Start isEmpty. Operand 1319 states and 2226 transitions. [2020-10-12 19:02:21,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-10-12 19:02:21,767 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:02:21,767 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:02:21,767 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 19:02:21,767 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:02:21,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:02:21,768 INFO L82 PathProgramCache]: Analyzing trace with hash -1508655142, now seen corresponding path program 1 times [2020-10-12 19:02:21,768 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:02:21,768 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [272950613] [2020-10-12 19:02:21,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:02:21,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:21,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:22,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:22,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:22,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:22,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:23,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:26,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:26,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-12 19:02:26,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 19:02:26,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5068 [2020-10-12 19:02:26,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:26,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:02:26,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-10-12 19:02:26,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-12 19:02:26,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:02:27,844 WARN L193 SmtUtils]: Spent 805.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2020-10-12 19:02:27,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:02:27,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:27,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:27,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:27,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:02:27,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:27,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 19:02:27,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:27,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:02:27,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:02:27,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:02:27,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:02:27,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 19:02:27,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:27,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:28,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:28,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-12 19:02:28,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:28,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 290 [2020-10-12 19:02:28,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:28,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:02:28,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:02:28,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 140 [2020-10-12 19:02:28,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:02:28,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-10-12 19:02:28,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:28,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:28,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:28,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 19:02:28,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:28,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 19:02:28,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:28,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:02:28,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:02:28,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 19:02:28,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:28,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-10-12 19:02:28,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:28,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:28,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:28,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 19:02:28,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:28,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 19:02:28,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:28,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:02:28,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:02:28,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 19:02:28,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:28,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-10-12 19:02:28,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:28,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:28,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:28,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 19:02:28,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:28,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 19:02:28,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:28,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:02:28,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:02:28,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 19:02:28,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:28,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2020-10-12 19:02:28,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:28,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:28,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:28,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:02:28,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:28,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 19:02:28,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:28,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:02:28,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 19:02:28,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 19:02:28,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:28,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2020-10-12 19:02:28,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:28,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:28,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:28,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:02:28,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:28,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 19:02:28,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:28,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:02:28,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 19:02:28,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:02:28,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:28,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-12 19:02:28,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:28,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:28,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:28,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:02:28,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:28,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 19:02:28,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:28,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:02:28,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 19:02:28,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:02:28,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:28,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2020-10-12 19:02:28,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:28,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:28,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:28,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 19:02:28,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:28,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 19:02:28,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:28,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:02:28,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 19:02:28,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:02:28,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:28,726 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 19:02:28,726 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [272950613] [2020-10-12 19:02:28,726 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:02:28,727 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 19:02:28,727 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454028331] [2020-10-12 19:02:28,727 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 19:02:28,728 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:02:28,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 19:02:28,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-12 19:02:28,728 INFO L87 Difference]: Start difference. First operand 1319 states and 2226 transitions. Second operand 11 states. [2020-10-12 19:02:29,398 WARN L193 SmtUtils]: Spent 594.00 ms on a formula simplification that was a NOOP. DAG size: 372 [2020-10-12 19:02:34,765 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 19:02:35,398 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 19:02:36,030 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:02:36,461 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 19:02:36,919 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 19:02:37,125 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:02:37,870 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 19:02:38,123 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:02:39,608 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:02:40,056 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:02:40,951 WARN L193 SmtUtils]: Spent 587.00 ms on a formula simplification that was a NOOP. DAG size: 372 [2020-10-12 19:02:41,170 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 19:02:41,478 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 19:02:41,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:02:41,524 INFO L93 Difference]: Finished difference Result 3363 states and 5572 transitions. [2020-10-12 19:02:41,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-12 19:02:41,525 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 239 [2020-10-12 19:02:41,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:02:41,538 INFO L225 Difference]: With dead ends: 3363 [2020-10-12 19:02:41,538 INFO L226 Difference]: Without dead ends: 2587 [2020-10-12 19:02:41,541 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2020-10-12 19:02:41,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2587 states. [2020-10-12 19:02:41,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2587 to 2053. [2020-10-12 19:02:41,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2053 states. [2020-10-12 19:02:41,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2053 states to 2053 states and 3408 transitions. [2020-10-12 19:02:41,741 INFO L78 Accepts]: Start accepts. Automaton has 2053 states and 3408 transitions. Word has length 239 [2020-10-12 19:02:41,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:02:41,742 INFO L479 AbstractCegarLoop]: Abstraction has 2053 states and 3408 transitions. [2020-10-12 19:02:41,742 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 19:02:41,742 INFO L276 IsEmpty]: Start isEmpty. Operand 2053 states and 3408 transitions. [2020-10-12 19:02:41,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2020-10-12 19:02:41,748 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:02:41,749 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:02:41,749 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 19:02:41,749 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:02:41,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:02:41,750 INFO L82 PathProgramCache]: Analyzing trace with hash -451568638, now seen corresponding path program 1 times [2020-10-12 19:02:41,750 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:02:41,750 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1997444783] [2020-10-12 19:02:41,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:02:41,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:41,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:41,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:42,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:42,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:42,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:42,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:43,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:43,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:43,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:46,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:46,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 267 [2020-10-12 19:02:46,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-12 19:02:46,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-10-12 19:02:46,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:46,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:02:46,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 154 [2020-10-12 19:02:46,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-12 19:02:46,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:47,874 WARN L193 SmtUtils]: Spent 911.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2020-10-12 19:02:47,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:02:47,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:47,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:47,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:47,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:02:47,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:47,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 19:02:47,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:47,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:02:47,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:02:47,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:02:47,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:02:47,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 19:02:47,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:48,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:48,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:48,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-12 19:02:48,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:48,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 292 [2020-10-12 19:02:48,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:48,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:02:48,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:02:48,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-12 19:02:48,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:02:48,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-10-12 19:02:48,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:48,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:48,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:48,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 19:02:48,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:48,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 19:02:48,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:48,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:02:48,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:02:48,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 19:02:48,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:02:48,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-10-12 19:02:48,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:48,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:48,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:48,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 19:02:48,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:48,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 19:02:48,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:48,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:02:48,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:02:48,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 19:02:48,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:02:48,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-10-12 19:02:48,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:48,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:48,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:48,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 19:02:48,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:48,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 19:02:48,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:48,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:02:48,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:02:48,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 19:02:48,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:02:48,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2020-10-12 19:02:48,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:48,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:48,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:48,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 19:02:48,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:48,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 19:02:48,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:48,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:02:48,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:02:48,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 19:02:48,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:02:48,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-10-12 19:02:48,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:48,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:48,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:48,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:02:48,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:48,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 19:02:48,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:48,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:02:48,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 19:02:48,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 19:02:48,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:02:48,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2020-10-12 19:02:48,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:48,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:48,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:48,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:02:48,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:48,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 19:02:48,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:48,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:02:48,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 19:02:48,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:02:48,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:02:48,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2020-10-12 19:02:48,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:48,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:48,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:48,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 19:02:48,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:48,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 19:02:48,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:48,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:02:48,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 19:02:48,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:02:48,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:02:48,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:02:48,936 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1997444783] [2020-10-12 19:02:48,936 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:02:48,937 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 19:02:48,937 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362262823] [2020-10-12 19:02:48,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 19:02:48,938 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:02:48,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 19:02:48,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-12 19:02:48,939 INFO L87 Difference]: Start difference. First operand 2053 states and 3408 transitions. Second operand 11 states. [2020-10-12 19:02:49,594 WARN L193 SmtUtils]: Spent 585.00 ms on a formula simplification that was a NOOP. DAG size: 372 [2020-10-12 19:02:55,019 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 19:02:55,657 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 19:02:56,330 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 19:02:56,972 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:02:57,401 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 19:02:57,868 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 19:02:58,074 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:02:59,485 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:02:59,961 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:03:00,429 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:03:01,344 WARN L193 SmtUtils]: Spent 626.00 ms on a formula simplification that was a NOOP. DAG size: 372 [2020-10-12 19:03:01,561 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 19:03:01,885 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 19:03:01,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:03:01,930 INFO L93 Difference]: Finished difference Result 6057 states and 9938 transitions. [2020-10-12 19:03:01,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-12 19:03:01,934 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 243 [2020-10-12 19:03:01,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:03:01,956 INFO L225 Difference]: With dead ends: 6057 [2020-10-12 19:03:01,956 INFO L226 Difference]: Without dead ends: 4547 [2020-10-12 19:03:01,961 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2020-10-12 19:03:01,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4547 states. [2020-10-12 19:03:02,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4547 to 3481. [2020-10-12 19:03:02,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3481 states. [2020-10-12 19:03:02,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3481 states to 3481 states and 5692 transitions. [2020-10-12 19:03:02,289 INFO L78 Accepts]: Start accepts. Automaton has 3481 states and 5692 transitions. Word has length 243 [2020-10-12 19:03:02,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:03:02,290 INFO L479 AbstractCegarLoop]: Abstraction has 3481 states and 5692 transitions. [2020-10-12 19:03:02,290 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 19:03:02,290 INFO L276 IsEmpty]: Start isEmpty. Operand 3481 states and 5692 transitions. [2020-10-12 19:03:02,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2020-10-12 19:03:02,300 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:03:02,300 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:03:02,300 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 19:03:02,300 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:03:02,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:03:02,301 INFO L82 PathProgramCache]: Analyzing trace with hash 1651818778, now seen corresponding path program 1 times [2020-10-12 19:03:02,301 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:03:02,301 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [765322833] [2020-10-12 19:03:02,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:03:02,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:02,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:02,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:02,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:02,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:03,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:03,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:03,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:03,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:03,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:07,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:07,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 271 [2020-10-12 19:03:07,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-12 19:03:07,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-10-12 19:03:07,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:07,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:03:07,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 155 [2020-10-12 19:03:07,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-12 19:03:07,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:08,206 WARN L193 SmtUtils]: Spent 699.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2020-10-12 19:03:08,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:03:08,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:08,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:08,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:08,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:03:08,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:08,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 19:03:08,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:08,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:03:08,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:03:08,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:03:08,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:08,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 19:03:08,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:08,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:08,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:08,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-12 19:03:08,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:08,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-10-12 19:03:08,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:08,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:03:08,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:03:08,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-12 19:03:08,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:08,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-10-12 19:03:08,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:08,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:08,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:08,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 19:03:08,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:08,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 19:03:08,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:08,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:03:08,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:03:08,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 19:03:08,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:08,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-10-12 19:03:08,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:08,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:08,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:08,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 19:03:08,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:08,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 19:03:08,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:08,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:03:08,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:03:08,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 19:03:08,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:08,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-10-12 19:03:08,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:08,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:08,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:08,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 19:03:08,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:08,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 19:03:08,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:08,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:03:08,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:03:08,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 19:03:08,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:08,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2020-10-12 19:03:08,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:08,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:08,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:08,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 19:03:08,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:08,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 19:03:08,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:08,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:03:08,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:03:08,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 19:03:08,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:08,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-10-12 19:03:08,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:08,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:08,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:08,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 19:03:08,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:08,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 19:03:08,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:08,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:03:08,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:03:08,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 19:03:08,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:08,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2020-10-12 19:03:08,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:08,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:08,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:08,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:03:08,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:08,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 19:03:08,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:08,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:03:08,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 19:03:08,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 19:03:08,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:08,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2020-10-12 19:03:08,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:08,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:08,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:08,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 19:03:08,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:08,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 19:03:08,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:08,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:03:08,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 19:03:08,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:03:08,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:08,929 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 19:03:08,929 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [765322833] [2020-10-12 19:03:08,929 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:03:08,929 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 19:03:08,929 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311403552] [2020-10-12 19:03:08,930 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 19:03:08,930 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:03:08,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 19:03:08,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-12 19:03:08,931 INFO L87 Difference]: Start difference. First operand 3481 states and 5692 transitions. Second operand 11 states. [2020-10-12 19:03:09,592 WARN L193 SmtUtils]: Spent 597.00 ms on a formula simplification that was a NOOP. DAG size: 372 [2020-10-12 19:03:15,081 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 19:03:15,735 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 19:03:16,378 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 19:03:17,026 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 19:03:17,677 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:03:18,089 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 19:03:19,200 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:03:19,670 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:03:20,157 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:03:20,633 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:03:21,569 WARN L193 SmtUtils]: Spent 595.00 ms on a formula simplification that was a NOOP. DAG size: 373 [2020-10-12 19:03:21,785 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-12 19:03:22,119 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 19:03:22,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:03:22,168 INFO L93 Difference]: Finished difference Result 11325 states and 18430 transitions. [2020-10-12 19:03:22,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-12 19:03:22,171 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 247 [2020-10-12 19:03:22,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:03:22,204 INFO L225 Difference]: With dead ends: 11325 [2020-10-12 19:03:22,204 INFO L226 Difference]: Without dead ends: 8387 [2020-10-12 19:03:22,214 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=169, Invalid=431, Unknown=0, NotChecked=0, Total=600 [2020-10-12 19:03:22,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8387 states. [2020-10-12 19:03:22,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8387 to 6257. [2020-10-12 19:03:22,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6257 states. [2020-10-12 19:03:22,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6257 states to 6257 states and 10100 transitions. [2020-10-12 19:03:22,805 INFO L78 Accepts]: Start accepts. Automaton has 6257 states and 10100 transitions. Word has length 247 [2020-10-12 19:03:22,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:03:22,806 INFO L479 AbstractCegarLoop]: Abstraction has 6257 states and 10100 transitions. [2020-10-12 19:03:22,806 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 19:03:22,806 INFO L276 IsEmpty]: Start isEmpty. Operand 6257 states and 10100 transitions. [2020-10-12 19:03:22,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2020-10-12 19:03:22,820 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:03:22,820 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:03:22,820 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 19:03:22,821 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:03:22,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:03:22,821 INFO L82 PathProgramCache]: Analyzing trace with hash -772356926, now seen corresponding path program 1 times [2020-10-12 19:03:22,821 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:03:22,822 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [855510527] [2020-10-12 19:03:22,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:03:22,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:22,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:23,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:23,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:23,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:23,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:23,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:24,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:24,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:24,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:27,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:27,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-10-12 19:03:27,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-12 19:03:27,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-12 19:03:27,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:27,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-12 19:03:27,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 161 [2020-10-12 19:03:27,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-12 19:03:27,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:28,602 WARN L193 SmtUtils]: Spent 582.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2020-10-12 19:03:28,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:03:28,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:28,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:28,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:28,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:03:28,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:28,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 19:03:28,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:28,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:03:28,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:03:28,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:03:28,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:28,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 19:03:28,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:28,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:29,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:29,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-12 19:03:29,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:29,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 370 [2020-10-12 19:03:29,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:29,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 19:03:29,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:03:29,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-10-12 19:03:29,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:29,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-10-12 19:03:29,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:29,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:29,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:29,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 19:03:29,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:29,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 19:03:29,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:29,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:03:29,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:03:29,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 19:03:29,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:29,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-10-12 19:03:29,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:29,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:29,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:29,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 19:03:29,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:29,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 19:03:29,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:29,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:03:29,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 19:03:29,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 19:03:29,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:29,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-10-12 19:03:29,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:29,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:29,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:29,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 19:03:29,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:29,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 19:03:29,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:29,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:03:29,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 19:03:29,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 19:03:29,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:29,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2020-10-12 19:03:29,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:29,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:29,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:29,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 19:03:29,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:29,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 19:03:29,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:29,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:03:29,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 19:03:29,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 19:03:29,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:29,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-10-12 19:03:29,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:29,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:29,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:29,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 19:03:29,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:29,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 19:03:29,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:29,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:03:29,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 19:03:29,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 19:03:29,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:29,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2020-10-12 19:03:29,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:29,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:29,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:29,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 19:03:29,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:29,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 19:03:29,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:29,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:03:29,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 19:03:29,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 19:03:29,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:29,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-10-12 19:03:29,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:03:29,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:03:29,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:03:29,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 19:03:29,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:03:29,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 19:03:29,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:03:29,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:03:29,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 19:03:29,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 19:03:29,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:03:29,611 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 19:03:29,611 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [855510527] [2020-10-12 19:03:29,611 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:03:29,611 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-12 19:03:29,612 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880600798] [2020-10-12 19:03:29,612 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-12 19:03:29,612 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:03:29,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-12 19:03:29,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2020-10-12 19:03:29,613 INFO L87 Difference]: Start difference. First operand 6257 states and 10100 transitions. Second operand 19 states. [2020-10-12 19:03:30,320 WARN L193 SmtUtils]: Spent 625.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-12 19:03:36,238 WARN L193 SmtUtils]: Spent 596.00 ms on a formula simplification that was a NOOP. DAG size: 372 [2020-10-12 19:03:36,868 WARN L193 SmtUtils]: Spent 604.00 ms on a formula simplification that was a NOOP. DAG size: 373 [2020-10-12 19:03:37,508 WARN L193 SmtUtils]: Spent 612.00 ms on a formula simplification that was a NOOP. DAG size: 374 [2020-10-12 19:03:38,163 WARN L193 SmtUtils]: Spent 626.00 ms on a formula simplification that was a NOOP. DAG size: 375 [2020-10-12 19:03:38,616 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 19:03:39,105 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:03:39,527 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 19:03:39,762 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 19:03:40,363 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 19:03:40,735 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:03:41,125 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 19:03:41,434 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-10-12 19:03:41,692 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-12 19:03:42,446 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 19:03:42,852 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:03:43,087 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 19:03:43,494 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 19:03:43,759 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 19:03:43,977 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 19:03:44,207 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 19:03:45,112 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2020-10-12 19:03:45,551 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:03:45,793 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 19:03:46,040 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 19:03:46,566 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 19:03:46,839 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 19:03:47,063 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 19:03:47,297 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 19:03:47,533 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 19:03:48,651 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 19:03:49,125 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:03:49,363 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 19:03:49,610 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 19:03:49,873 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2020-10-12 19:03:50,908 WARN L193 SmtUtils]: Spent 601.00 ms on a formula simplification that was a NOOP. DAG size: 373 [2020-10-12 19:03:51,539 WARN L193 SmtUtils]: Spent 602.00 ms on a formula simplification that was a NOOP. DAG size: 375 [2020-10-12 19:03:52,190 WARN L193 SmtUtils]: Spent 615.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-12 19:03:52,855 WARN L193 SmtUtils]: Spent 624.00 ms on a formula simplification that was a NOOP. DAG size: 377 [2020-10-12 19:03:53,539 WARN L193 SmtUtils]: Spent 637.00 ms on a formula simplification that was a NOOP. DAG size: 378 [2020-10-12 19:03:56,327 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 19:03:56,566 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-12 19:03:56,822 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 19:03:57,080 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-12 19:03:57,345 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-10-12 19:03:57,610 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 19:03:57,851 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 19:03:58,103 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 19:03:58,356 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 19:03:58,617 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-12 19:04:00,838 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 19:04:01,114 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2020-10-12 19:04:01,574 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-12 19:04:01,829 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 19:04:02,092 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-12 19:04:02,355 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-10-12 19:04:02,850 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 19:04:03,108 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 19:04:03,362 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 19:04:03,619 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-12 19:04:06,056 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-12 19:04:06,360 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 19:04:06,784 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-12 19:04:07,170 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-10-12 19:04:07,516 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-12 19:04:07,771 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 19:04:08,295 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-10-12 19:04:08,552 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 19:04:08,809 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 19:04:11,031 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-12 19:04:11,385 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 19:04:11,630 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 19:04:11,965 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 19:04:12,338 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-12 19:04:12,605 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-10-12 19:04:13,102 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 19:04:13,368 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-12 19:04:15,548 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-12 19:04:15,841 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 19:04:16,163 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-12 19:04:16,457 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-12 19:04:16,733 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 19:04:17,156 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-10-12 19:04:17,673 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-12 19:04:20,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:04:20,336 INFO L93 Difference]: Finished difference Result 54010 states and 88577 transitions. [2020-10-12 19:04:20,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2020-10-12 19:04:20,337 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 251 [2020-10-12 19:04:20,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:04:20,554 INFO L225 Difference]: With dead ends: 54010 [2020-10-12 19:04:20,554 INFO L226 Difference]: Without dead ends: 48296 [2020-10-12 19:04:20,584 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4184 ImplicationChecksByTransitivity, 24.3s TimeCoverageRelationStatistics Valid=2235, Invalid=9755, Unknown=0, NotChecked=0, Total=11990 [2020-10-12 19:04:20,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48296 states. [2020-10-12 19:04:22,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48296 to 35124. [2020-10-12 19:04:22,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35124 states. [2020-10-12 19:04:22,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35124 states to 35124 states and 56782 transitions. [2020-10-12 19:04:22,483 INFO L78 Accepts]: Start accepts. Automaton has 35124 states and 56782 transitions. Word has length 251 [2020-10-12 19:04:22,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:04:22,484 INFO L479 AbstractCegarLoop]: Abstraction has 35124 states and 56782 transitions. [2020-10-12 19:04:22,484 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-12 19:04:22,484 INFO L276 IsEmpty]: Start isEmpty. Operand 35124 states and 56782 transitions. [2020-10-12 19:04:22,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2020-10-12 19:04:22,503 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:04:22,503 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:04:22,503 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 19:04:22,503 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:04:22,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:04:22,504 INFO L82 PathProgramCache]: Analyzing trace with hash -906687872, now seen corresponding path program 1 times [2020-10-12 19:04:22,504 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:04:22,504 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1638348174] [2020-10-12 19:04:22,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:04:22,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:04:22,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:04:22,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:04:23,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:04:23,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:04:23,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:04:23,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:04:23,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:04:23,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:04:25,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:04:27,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:04:27,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 276 [2020-10-12 19:04:27,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-12 19:04:27,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-10-12 19:04:27,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:04:27,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 19:04:27,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 161 [2020-10-12 19:04:27,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-12 19:04:27,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:04:28,339 WARN L193 SmtUtils]: Spent 606.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2020-10-12 19:04:28,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:04:28,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:04:28,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:04:28,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:04:28,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:04:28,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:04:28,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 19:04:28,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:04:28,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:04:28,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:04:28,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:04:28,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:04:28,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 19:04:28,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:04:28,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:04:28,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:04:28,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-12 19:04:28,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:04:28,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 232 [2020-10-12 19:04:28,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:04:28,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 19:04:28,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:04:28,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 153 [2020-10-12 19:04:28,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:04:28,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-10-12 19:04:28,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:04:28,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:04:28,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:04:28,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 19:04:28,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:04:28,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 19:04:28,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:04:28,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:04:28,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:04:28,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 19:04:28,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:04:28,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-10-12 19:04:28,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:04:28,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:04:28,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:04:28,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 19:04:28,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:04:28,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 19:04:28,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:04:28,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:04:28,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 19:04:28,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 19:04:28,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:04:28,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-10-12 19:04:28,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:04:28,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:04:28,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:04:28,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 19:04:28,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:04:28,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 19:04:28,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:04:28,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:04:28,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:04:28,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 19:04:28,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:04:28,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2020-10-12 19:04:28,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:04:28,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:04:28,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:04:28,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 19:04:28,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:04:28,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 19:04:28,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:04:28,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:04:28,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:04:28,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 19:04:28,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:04:28,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-10-12 19:04:28,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:04:28,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:04:28,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:04:28,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 19:04:28,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:04:28,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 19:04:28,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:04:28,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:04:28,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:04:28,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 19:04:28,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:04:28,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2020-10-12 19:04:28,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:04:28,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:04:28,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:04:28,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 19:04:28,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:04:28,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 19:04:28,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:04:28,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:04:28,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:04:28,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 19:04:28,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:04:28,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-10-12 19:04:28,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:04:28,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:04:28,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:04:28,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:04:28,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:04:28,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 19:04:28,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:04:28,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:04:28,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-12 19:04:28,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 19:04:28,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:04:29,057 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 19:04:29,057 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1638348174] [2020-10-12 19:04:29,057 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:04:29,057 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 19:04:29,058 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817003968] [2020-10-12 19:04:29,058 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 19:04:29,058 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:04:29,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 19:04:29,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-12 19:04:29,059 INFO L87 Difference]: Start difference. First operand 35124 states and 56782 transitions. Second operand 12 states. [2020-10-12 19:04:29,716 WARN L193 SmtUtils]: Spent 605.00 ms on a formula simplification that was a NOOP. DAG size: 373 [2020-10-12 19:04:35,660 WARN L193 SmtUtils]: Spent 604.00 ms on a formula simplification that was a NOOP. DAG size: 372 [2020-10-12 19:04:36,070 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 19:04:36,539 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 19:04:36,747 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:04:37,102 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 19:04:37,344 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 19:04:37,557 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:04:38,663 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 19:04:38,909 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 19:04:39,122 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:04:40,220 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 19:04:40,472 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 19:04:40,687 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:04:41,793 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 19:04:42,050 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 19:04:42,264 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 19:04:43,836 WARN L193 SmtUtils]: Spent 608.00 ms on a formula simplification that was a NOOP. DAG size: 375 [2020-10-12 19:04:44,465 WARN L193 SmtUtils]: Spent 600.00 ms on a formula simplification that was a NOOP. DAG size: 373 [2020-10-12 19:04:45,984 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 19:04:46,263 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-10-12 19:04:46,518 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 19:04:46,779 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-12 19:04:47,841 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 19:04:48,061 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 19:04:48,336 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 19:04:49,477 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 19:04:49,746 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 19:04:51,012 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 19:04:51,277 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 184