/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 SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product16.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 01:55:45,920 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 01:55:45,925 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 01:55:45,956 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 01:55:45,956 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 01:55:45,957 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 01:55:45,959 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 01:55:45,961 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 01:55:45,963 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 01:55:45,964 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 01:55:45,965 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 01:55:45,966 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 01:55:45,966 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 01:55:45,968 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 01:55:45,969 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 01:55:45,970 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 01:55:45,971 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 01:55:45,973 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 01:55:45,975 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 01:55:45,977 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 01:55:45,979 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 01:55:45,980 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 01:55:45,981 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 01:55:45,982 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 01:55:45,985 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 01:55:45,985 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 01:55:45,985 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 01:55:45,987 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 01:55:45,987 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 01:55:45,988 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 01:55:45,988 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 01:55:45,989 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 01:55:45,990 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 01:55:45,991 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 01:55:45,992 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 01:55:45,993 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 01:55:45,994 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 01:55:45,994 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 01:55:45,994 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 01:55:45,995 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 01:55:45,996 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 01:55:45,997 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 [2020-09-25 01:55:46,025 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 01:55:46,025 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 01:55:46,026 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 01:55:46,027 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 01:55:46,027 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 01:55:46,027 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 01:55:46,027 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 01:55:46,028 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 01:55:46,028 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 01:55:46,028 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 01:55:46,028 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 01:55:46,028 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 01:55:46,029 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 01:55:46,029 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 01:55:46,029 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 01:55:46,029 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 01:55:46,029 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 01:55:46,030 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 01:55:46,030 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 01:55:46,030 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 01:55:46,030 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 01:55:46,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:55:46,031 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 01:55:46,031 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 01:55:46,031 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 01:55:46,031 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 01:55:46,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 01:55:46,032 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 01:55:46,032 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 01:55:46,032 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 -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; [2020-09-25 01:55:46,477 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 01:55:46,502 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 01:55:46,507 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 01:55:46,509 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 01:55:46,510 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 01:55:46,511 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product16.cil.c [2020-09-25 01:55:46,609 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c0287149a/4066b1bbb04744a3b56ef7c8d5595533/FLAGae2385782 [2020-09-25 01:55:47,249 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 01:55:47,250 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product16.cil.c [2020-09-25 01:55:47,263 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c0287149a/4066b1bbb04744a3b56ef7c8d5595533/FLAGae2385782 [2020-09-25 01:55:47,463 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c0287149a/4066b1bbb04744a3b56ef7c8d5595533 [2020-09-25 01:55:47,475 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 01:55:47,480 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 01:55:47,481 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 01:55:47,481 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 01:55:47,485 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 01:55:47,486 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:55:47" (1/1) ... [2020-09-25 01:55:47,490 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56344ce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:55:47, skipping insertion in model container [2020-09-25 01:55:47,490 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:55:47" (1/1) ... [2020-09-25 01:55:47,499 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 01:55:47,557 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 01:55:47,948 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:55:47,965 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 01:55:48,224 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:55:48,265 INFO L208 MainTranslator]: Completed translation [2020-09-25 01:55:48,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:55:48 WrapperNode [2020-09-25 01:55:48,266 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 01:55:48,267 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 01:55:48,267 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 01:55:48,267 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 01:55:48,281 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:55:48" (1/1) ... [2020-09-25 01:55:48,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:55:48" (1/1) ... [2020-09-25 01:55:48,304 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:55:48" (1/1) ... [2020-09-25 01:55:48,305 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:55:48" (1/1) ... [2020-09-25 01:55:48,337 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:55:48" (1/1) ... [2020-09-25 01:55:48,348 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:55:48" (1/1) ... [2020-09-25 01:55:48,354 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:55:48" (1/1) ... [2020-09-25 01:55:48,362 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 01:55:48,362 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 01:55:48,362 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 01:55:48,363 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 01:55:48,364 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:55:48" (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 [2020-09-25 01:55:48,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 01:55:48,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 01:55:48,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 01:55:48,467 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 01:55:48,467 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 01:55:48,467 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 01:55:48,467 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 01:55:48,467 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 01:55:48,469 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 01:55:48,469 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-25 01:55:48,469 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-25 01:55:48,469 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-25 01:55:48,469 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 01:55:48,470 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 01:55:48,470 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 01:55:48,471 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 01:55:48,471 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 01:55:48,471 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 01:55:48,471 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 01:55:48,472 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 01:55:48,472 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 01:55:48,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 01:55:48,473 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 01:55:48,474 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 01:55:48,474 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 01:55:48,475 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-09-25 01:55:48,475 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 01:55:48,475 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 01:55:48,475 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 01:55:48,475 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 01:55:48,475 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 01:55:48,476 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 01:55:48,476 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 01:55:48,476 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 01:55:48,476 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 01:55:48,477 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 01:55:48,477 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 01:55:48,477 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 01:55:48,477 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 01:55:48,477 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 01:55:48,478 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 01:55:48,478 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 01:55:48,478 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 01:55:48,478 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 01:55:48,478 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 01:55:48,478 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 01:55:48,478 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 01:55:48,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 01:55:48,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 01:55:48,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 01:55:48,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 01:55:48,480 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 01:55:48,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 01:55:48,480 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 01:55:48,481 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 01:55:48,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 01:55:48,481 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 01:55:48,481 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 01:55:48,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 01:55:48,481 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 01:55:48,482 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 01:55:48,482 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 01:55:48,482 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 01:55:48,482 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-25 01:55:48,482 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-25 01:55:48,482 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-25 01:55:48,483 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 01:55:48,483 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 01:55:48,483 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 01:55:48,483 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 01:55:48,484 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 01:55:48,485 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 01:55:48,486 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 01:55:48,486 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 01:55:48,486 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 01:55:48,487 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 01:55:48,487 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 01:55:48,487 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 01:55:48,487 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 01:55:48,487 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 01:55:48,487 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 01:55:48,487 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 01:55:48,489 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 01:55:48,489 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 01:55:48,489 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 01:55:48,489 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 01:55:48,489 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 01:55:48,489 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 01:55:48,489 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 01:55:48,490 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 01:55:48,490 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-09-25 01:55:48,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 01:55:48,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 01:55:48,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 01:55:49,721 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 01:55:49,721 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 01:55:49,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:55:49 BoogieIcfgContainer [2020-09-25 01:55:49,729 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 01:55:49,730 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 01:55:49,730 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 01:55:49,734 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 01:55:49,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:55:47" (1/3) ... [2020-09-25 01:55:49,736 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30dcf8f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:55:49, skipping insertion in model container [2020-09-25 01:55:49,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:55:48" (2/3) ... [2020-09-25 01:55:49,736 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30dcf8f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:55:49, skipping insertion in model container [2020-09-25 01:55:49,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:55:49" (3/3) ... [2020-09-25 01:55:49,739 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product16.cil.c [2020-09-25 01:55:49,751 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 01:55:49,762 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 01:55:49,785 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 01:55:49,818 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 01:55:49,818 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 01:55:49,819 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 01:55:49,819 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 01:55:49,819 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 01:55:49,819 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 01:55:49,819 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 01:55:49,819 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 01:55:49,845 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states. [2020-09-25 01:55:49,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 01:55:49,863 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:55:49,864 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:55:49,864 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:55:49,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:55:49,871 INFO L82 PathProgramCache]: Analyzing trace with hash -1413214232, now seen corresponding path program 1 times [2020-09-25 01:55:49,883 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:55:49,883 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [499369890] [2020-09-25 01:55:49,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:55:50,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:50,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:50,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:52,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:52,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:55,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:55,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:55,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-25 01:55:55,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 01:55:55,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 01:55:55,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:55,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:55,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 01:55:55,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:55,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 01:55:55,934 WARN L193 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:55:55,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:55:55,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:55,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:56,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:56,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:55:56,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:56,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-09-25 01:55:56,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:56,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:56,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:55:56,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:56,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:55:56,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:55:56,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:56,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:56,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:56,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:55:56,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:56,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:55:56,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:56,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:56,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:55:56,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:56,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:55:56,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:55:56,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:56,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:56,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:56,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:55:56,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:56,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 01:55:56,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:56,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:56,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:55:56,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:56,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:55:56,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:55:56,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:56,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:56,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:56,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:55:56,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:56,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:55:56,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:56,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:56,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:55:56,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:56,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:55:56,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:55:56,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:56,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:56,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:56,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:55:56,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:56,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:55:56,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:56,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:56,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:55:56,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:56,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:55:56,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:55:56,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:56,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:56,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:56,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:55:56,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:56,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:55:56,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:56,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:56,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:55:56,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:56,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:55:56,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 01:55:56,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:56,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:56,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:56,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 01:55:56,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:56,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:55:56,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:56,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:56,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 01:55:56,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:56,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:55:56,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:55:56,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:56,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:56,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:56,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:55:56,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:56,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:55:56,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:56,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:56,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:55:56,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:56,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:55:56,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 01:55:56,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:56,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:56,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:56,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:55:56,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:56,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:55:56,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:56,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:56,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:55:56,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:56,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:55:56,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 01:55:56,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:56,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:56,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:56,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:55:56,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:56,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:55:56,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:56,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:56,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:55:56,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:56,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:55:56,342 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 01:55:56,343 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [499369890] [2020-09-25 01:55:56,345 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:55:56,345 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 01:55:56,346 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675312187] [2020-09-25 01:55:56,356 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 01:55:56,357 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:55:56,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 01:55:56,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 01:55:56,384 INFO L87 Difference]: Start difference. First operand 302 states. Second operand 4 states. [2020-09-25 01:55:57,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:55:57,627 INFO L93 Difference]: Finished difference Result 444 states and 525 transitions. [2020-09-25 01:55:57,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 01:55:57,629 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-09-25 01:55:57,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:55:57,648 INFO L225 Difference]: With dead ends: 444 [2020-09-25 01:55:57,648 INFO L226 Difference]: Without dead ends: 288 [2020-09-25 01:55:57,654 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 01:55:57,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2020-09-25 01:55:57,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 241. [2020-09-25 01:55:57,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-09-25 01:55:57,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 261 transitions. [2020-09-25 01:55:57,753 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 261 transitions. Word has length 160 [2020-09-25 01:55:57,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:55:57,754 INFO L479 AbstractCegarLoop]: Abstraction has 241 states and 261 transitions. [2020-09-25 01:55:57,754 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 01:55:57,755 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 261 transitions. [2020-09-25 01:55:57,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 01:55:57,760 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:55:57,760 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:55:57,761 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 01:55:57,761 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:55:57,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:55:57,761 INFO L82 PathProgramCache]: Analyzing trace with hash 574057430, now seen corresponding path program 1 times [2020-09-25 01:55:57,762 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:55:57,762 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [556615425] [2020-09-25 01:55:57,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:55:57,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:57,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:57,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:59,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:59,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:00,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:02,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:02,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-25 01:56:02,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 01:56:02,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 01:56:02,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:02,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:56:02,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 01:56:02,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 01:56:02,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:03,198 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:56:03,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:56:03,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:03,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:03,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:03,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:56:03,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:03,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-25 01:56:03,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:03,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:03,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:03,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:03,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:03,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:56:03,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:03,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:03,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:03,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:56:03,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:03,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:56:03,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:03,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:03,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:03,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:03,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:03,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:56:03,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:03,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:03,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:03,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:56:03,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:03,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:56:03,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:03,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:03,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:03,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:03,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:03,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:56:03,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:03,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:03,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:03,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:56:03,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:03,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:56:03,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:03,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:03,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:03,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:03,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:03,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:56:03,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:03,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:03,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:03,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:56:03,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:03,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:56:03,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:03,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:03,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:03,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:03,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:03,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:56:03,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:03,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:03,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:03,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:56:03,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:03,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:56:03,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:03,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:03,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:03,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:03,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:03,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 01:56:03,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:03,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:03,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:03,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 01:56:03,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:03,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:56:03,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:03,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:03,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 01:56:03,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:03,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:03,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:56:03,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:03,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:03,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:03,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:56:03,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:03,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:56:03,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:03,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:03,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:03,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:03,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:03,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 01:56:03,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:03,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:03,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:03,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:56:03,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:03,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:56:03,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:03,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:03,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:56:03,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:03,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:03,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 01:56:03,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:03,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:03,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:03,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:56:03,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:03,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:56:03,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:03,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:03,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:56:03,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:03,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:03,435 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 01:56:03,435 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [556615425] [2020-09-25 01:56:03,436 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:56:03,436 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 01:56:03,436 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101033891] [2020-09-25 01:56:03,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 01:56:03,439 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:56:03,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 01:56:03,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:56:03,439 INFO L87 Difference]: Start difference. First operand 241 states and 261 transitions. Second operand 5 states. [2020-09-25 01:56:04,045 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:56:04,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:56:04,959 INFO L93 Difference]: Finished difference Result 363 states and 409 transitions. [2020-09-25 01:56:04,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 01:56:04,960 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-25 01:56:04,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:56:04,965 INFO L225 Difference]: With dead ends: 363 [2020-09-25 01:56:04,966 INFO L226 Difference]: Without dead ends: 277 [2020-09-25 01:56:04,967 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 01:56:04,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2020-09-25 01:56:05,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 231. [2020-09-25 01:56:05,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2020-09-25 01:56:05,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 248 transitions. [2020-09-25 01:56:05,010 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 248 transitions. Word has length 161 [2020-09-25 01:56:05,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:56:05,011 INFO L479 AbstractCegarLoop]: Abstraction has 231 states and 248 transitions. [2020-09-25 01:56:05,011 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 01:56:05,011 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 248 transitions. [2020-09-25 01:56:05,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-09-25 01:56:05,014 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:56:05,014 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:56:05,014 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 01:56:05,014 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:56:05,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:56:05,015 INFO L82 PathProgramCache]: Analyzing trace with hash -1217367554, now seen corresponding path program 1 times [2020-09-25 01:56:05,015 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:56:05,015 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1206025485] [2020-09-25 01:56:05,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:56:05,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:05,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:05,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:05,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:07,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:10,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:10,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-09-25 01:56:10,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 01:56:10,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-09-25 01:56:10,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:10,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:56:10,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 01:56:10,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 01:56:10,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:10,433 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:56:10,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:56:10,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:10,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:10,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:10,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:56:10,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:10,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-09-25 01:56:10,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:10,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:10,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:10,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:10,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:56:10,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:56:10,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:10,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:10,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:10,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:56:10,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:10,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:56:10,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:10,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:10,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:10,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:10,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:56:10,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:56:10,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:10,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:10,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:10,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:56:10,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:10,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:56:10,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:10,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:10,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:10,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:10,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:56:10,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:56:10,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:10,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:10,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:10,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:56:10,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:10,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:56:10,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:10,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:10,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:10,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:10,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:10,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:56:10,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:10,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:10,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:10,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:56:10,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:10,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:56:10,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:10,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:10,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:10,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:10,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:56:10,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:56:10,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:10,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:10,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:10,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:56:10,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:10,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:56:10,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:10,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:10,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:10,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:10,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:56:10,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 01:56:10,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:10,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:10,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:10,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:56:10,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:10,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:56:10,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:10,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:56:10,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:10,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 01:56:10,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:10,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 01:56:10,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:10,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:10,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:10,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 01:56:10,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:10,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:56:10,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:10,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:56:10,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:10,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 01:56:10,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:10,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:56:10,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:10,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:10,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:10,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:56:10,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:10,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:56:10,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:10,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:10,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:10,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:10,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:56:10,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-25 01:56:10,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:10,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:10,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:10,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:56:10,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:10,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:56:10,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:10,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:10,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:56:10,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:10,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:10,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-09-25 01:56:10,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:10,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:10,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:10,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:56:10,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:10,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:56:10,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:10,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:10,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:56:10,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:10,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:10,779 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 01:56:10,780 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1206025485] [2020-09-25 01:56:10,780 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:56:10,780 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 01:56:10,781 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448050468] [2020-09-25 01:56:10,782 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 01:56:10,782 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:56:10,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 01:56:10,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 01:56:10,783 INFO L87 Difference]: Start difference. First operand 231 states and 248 transitions. Second operand 6 states. [2020-09-25 01:56:11,495 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:56:13,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:56:13,164 INFO L93 Difference]: Finished difference Result 537 states and 624 transitions. [2020-09-25 01:56:13,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 01:56:13,169 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 174 [2020-09-25 01:56:13,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:56:13,174 INFO L225 Difference]: With dead ends: 537 [2020-09-25 01:56:13,174 INFO L226 Difference]: Without dead ends: 421 [2020-09-25 01:56:13,176 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 01:56:13,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2020-09-25 01:56:13,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 337. [2020-09-25 01:56:13,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2020-09-25 01:56:13,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 372 transitions. [2020-09-25 01:56:13,239 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 372 transitions. Word has length 174 [2020-09-25 01:56:13,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:56:13,240 INFO L479 AbstractCegarLoop]: Abstraction has 337 states and 372 transitions. [2020-09-25 01:56:13,240 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 01:56:13,241 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 372 transitions. [2020-09-25 01:56:13,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-09-25 01:56:13,243 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:56:13,243 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:56:13,244 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 01:56:13,244 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:56:13,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:56:13,244 INFO L82 PathProgramCache]: Analyzing trace with hash 820009847, now seen corresponding path program 1 times [2020-09-25 01:56:13,244 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:56:13,245 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1929457609] [2020-09-25 01:56:13,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:56:13,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:13,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:13,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:14,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:16,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:18,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:18,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-09-25 01:56:18,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 01:56:18,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 01:56:18,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:18,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:56:18,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-09-25 01:56:18,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 01:56:18,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:18,659 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:56:18,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:56:18,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:18,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:18,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:18,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:56:18,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:18,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-09-25 01:56:18,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:18,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:18,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:18,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:18,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:18,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:56:18,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:18,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:18,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:18,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:56:18,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:18,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:56:18,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:18,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:18,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:18,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:18,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:18,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:56:18,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:18,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:18,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:18,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:56:18,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:18,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:56:18,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:18,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:18,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:18,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:18,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:18,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:56:18,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:18,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:18,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:18,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:56:18,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:18,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:56:18,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:18,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:18,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:18,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:18,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:18,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:56:18,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:18,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:18,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:18,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:56:18,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:18,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:56:18,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:18,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:18,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:18,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:18,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:18,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:56:18,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:18,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:18,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:18,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:56:18,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:18,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:56:18,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:18,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:18,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:18,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:18,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:18,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 01:56:18,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:18,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:18,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:18,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 01:56:18,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:18,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:56:18,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:18,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:18,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:18,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:18,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:18,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 01:56:18,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:18,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:18,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:18,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 01:56:18,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:18,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:56:18,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:18,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:18,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:18,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:18,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:18,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:56:18,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:18,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:18,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:18,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:56:18,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:18,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:56:18,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:18,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:18,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:18,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:18,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:18,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-25 01:56:18,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:18,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:18,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:19,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:56:19,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:19,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:56:19,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:19,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:56:19,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:19,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:56:19,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:19,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-09-25 01:56:19,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:19,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:19,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:19,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:56:19,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:19,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 01:56:19,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:19,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:56:19,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:19,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:56:19,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:19,085 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 01:56:19,086 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1929457609] [2020-09-25 01:56:19,086 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:56:19,086 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 01:56:19,087 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039922378] [2020-09-25 01:56:19,087 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 01:56:19,087 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:56:19,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 01:56:19,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 01:56:19,089 INFO L87 Difference]: Start difference. First operand 337 states and 372 transitions. Second operand 10 states. [2020-09-25 01:56:19,660 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:56:20,692 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:21,028 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 01:56:21,994 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 01:56:22,341 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-09-25 01:56:22,660 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 01:56:22,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:56:22,731 INFO L93 Difference]: Finished difference Result 568 states and 674 transitions. [2020-09-25 01:56:22,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 01:56:22,732 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 179 [2020-09-25 01:56:22,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:56:22,733 INFO L225 Difference]: With dead ends: 568 [2020-09-25 01:56:22,733 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 01:56:22,738 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2020-09-25 01:56:22,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 01:56:22,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 01:56:22,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 01:56:22,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 01:56:22,739 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 179 [2020-09-25 01:56:22,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:56:22,739 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 01:56:22,739 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 01:56:22,739 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 01:56:22,739 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 01:56:22,739 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 01:56:22,742 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 01:56:22,943 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:56:23,119 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:23,310 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:23,433 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 7 [2020-09-25 01:56:23,601 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:23,777 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:56:23,945 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:24,222 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 7 [2020-09-25 01:56:24,385 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:24,546 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:24,876 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 01:56:25,211 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 01:56:25,541 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 01:56:25,868 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 01:56:26,012 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:56:26,165 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:56:26,327 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:26,485 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:56:26,642 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:26,798 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:56:26,961 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:27,120 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:27,287 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:27,445 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:27,597 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:56:27,754 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:27,914 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:28,024 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 7 [2020-09-25 01:56:28,183 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:28,341 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:28,493 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:56:28,648 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:56:28,813 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:28,971 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:29,130 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:29,288 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:29,442 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:56:29,599 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:29,759 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:56:29,917 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:30,075 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:30,232 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:30,391 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:30,543 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:56:30,647 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 7 [2020-09-25 01:56:30,823 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:30,978 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:56:31,138 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:31,394 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 7 [2020-09-25 01:56:31,555 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:31,664 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 7 [2020-09-25 01:56:31,816 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:56:31,975 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:32,134 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:32,289 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:56:32,448 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:32,606 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:32,771 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:32,928 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:33,085 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:33,260 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:33,412 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:56:33,570 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:33,726 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:33,883 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:34,320 WARN L193 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 9 [2020-09-25 01:56:34,549 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 25 [2020-09-25 01:56:34,814 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 1 [2020-09-25 01:56:35,052 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 25 [2020-09-25 01:56:35,284 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 25 [2020-09-25 01:56:35,492 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 10 [2020-09-25 01:56:35,703 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:56:36,063 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 9 [2020-09-25 01:56:36,505 WARN L193 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 16 [2020-09-25 01:56:36,723 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 1 [2020-09-25 01:56:36,962 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 1