/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --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_spec2_product11.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:28:37,402 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:28:37,407 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:28:37,451 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:28:37,452 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:28:37,464 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:28:37,466 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:28:37,470 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:28:37,473 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:28:37,477 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:28:37,478 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:28:37,479 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:28:37,480 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:28:37,483 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:28:37,485 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:28:37,487 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:28:37,489 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:28:37,491 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:28:37,492 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:28:37,503 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:28:37,505 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:28:37,506 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:28:37,508 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:28:37,508 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:28:37,511 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:28:37,512 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:28:37,512 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:28:37,515 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:28:37,516 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:28:37,518 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:28:37,518 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:28:37,519 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:28:37,520 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:28:37,521 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:28:37,522 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:28:37,522 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:28:37,523 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:28:37,523 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:28:37,523 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:28:37,525 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:28:37,526 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:28:37,528 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 07:28:37,574 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:28:37,574 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:28:37,577 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:28:37,577 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:28:37,577 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:28:37,578 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:28:37,578 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:28:37,578 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:28:37,578 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:28:37,579 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:28:37,580 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:28:37,580 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:28:37,580 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:28:37,581 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:28:37,581 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:28:37,581 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:28:37,581 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:28:37,581 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:28:37,582 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:28:37,582 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:28:37,582 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:28:37,582 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:28:37,583 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:28:37,583 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:28:37,583 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:28:37,583 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:28:37,583 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:28:37,584 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:28:37,584 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:28:37,584 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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 07:28:38,037 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:28:38,061 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:28:38,066 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:28:38,068 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:28:38,069 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:28:38,070 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product11.cil.c [2020-09-25 07:28:38,155 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/80f3b571f/bf33b07cbe2249958320bcc997660122/FLAGe1e78bd0b [2020-09-25 07:28:38,749 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:28:38,750 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product11.cil.c [2020-09-25 07:28:38,772 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/80f3b571f/bf33b07cbe2249958320bcc997660122/FLAGe1e78bd0b [2020-09-25 07:28:39,044 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/80f3b571f/bf33b07cbe2249958320bcc997660122 [2020-09-25 07:28:39,057 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:28:39,062 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:28:39,063 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:28:39,063 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:28:39,067 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:28:39,069 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:28:39" (1/1) ... [2020-09-25 07:28:39,073 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:28:39, skipping insertion in model container [2020-09-25 07:28:39,074 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:28:39" (1/1) ... [2020-09-25 07:28:39,083 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:28:39,139 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:28:39,501 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:28:39,518 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:28:39,773 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:28:39,810 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:28:39,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:28:39 WrapperNode [2020-09-25 07:28:39,811 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:28:39,812 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:28:39,812 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:28:39,812 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:28:39,826 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:28:39" (1/1) ... [2020-09-25 07:28:39,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:28:39" (1/1) ... [2020-09-25 07:28:39,848 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:28:39" (1/1) ... [2020-09-25 07:28:39,848 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:28:39" (1/1) ... [2020-09-25 07:28:39,882 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:28:39" (1/1) ... [2020-09-25 07:28:39,895 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:28:39" (1/1) ... [2020-09-25 07:28:39,902 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:28:39" (1/1) ... [2020-09-25 07:28:39,910 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:28:39,911 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:28:39,911 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:28:39,911 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:28:39,913 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:28:39" (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 07:28:40,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:28:40,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:28:40,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 07:28:40,021 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 07:28:40,021 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 07:28:40,022 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 07:28:40,022 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 07:28:40,022 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 07:28:40,022 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 07:28:40,022 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 07:28:40,022 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 07:28:40,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 07:28:40,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 07:28:40,023 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 07:28:40,023 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 07:28:40,024 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-09-25 07:28:40,024 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 07:28:40,024 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 07:28:40,024 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 07:28:40,025 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 07:28:40,025 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 07:28:40,025 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 07:28:40,025 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 07:28:40,025 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 07:28:40,025 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 07:28:40,026 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 07:28:40,026 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 07:28:40,026 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 07:28:40,026 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 07:28:40,026 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 07:28:40,026 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 07:28:40,027 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 07:28:40,027 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 07:28:40,027 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 07:28:40,027 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 07:28:40,027 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 07:28:40,028 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:28:40,028 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:28:40,028 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:28:40,028 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 07:28:40,028 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 07:28:40,028 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 07:28:40,029 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 07:28:40,029 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 07:28:40,029 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 07:28:40,029 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 07:28:40,029 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 07:28:40,029 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 07:28:40,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 07:28:40,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 07:28:40,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 07:28:40,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 07:28:40,030 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 07:28:40,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 07:28:40,031 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 07:28:40,031 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 07:28:40,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 07:28:40,031 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 07:28:40,031 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 07:28:40,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 07:28:40,032 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 07:28:40,032 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 07:28:40,032 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 07:28:40,032 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 07:28:40,032 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 07:28:40,032 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 07:28:40,032 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 07:28:40,033 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 07:28:40,033 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 07:28:40,033 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 07:28:40,033 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 07:28:40,033 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 07:28:40,033 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-09-25 07:28:40,034 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 07:28:40,034 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 07:28:40,034 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 07:28:40,034 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 07:28:40,034 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 07:28:40,034 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 07:28:40,035 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 07:28:40,035 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 07:28:40,035 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 07:28:40,035 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 07:28:40,035 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 07:28:40,035 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:28:40,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:28:40,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 07:28:40,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:28:41,150 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:28:41,151 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 07:28:41,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:28:41 BoogieIcfgContainer [2020-09-25 07:28:41,158 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:28:41,160 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:28:41,160 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:28:41,164 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:28:41,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:28:39" (1/3) ... [2020-09-25 07:28:41,165 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dfeaa4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:28:41, skipping insertion in model container [2020-09-25 07:28:41,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:28:39" (2/3) ... [2020-09-25 07:28:41,166 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dfeaa4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:28:41, skipping insertion in model container [2020-09-25 07:28:41,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:28:41" (3/3) ... [2020-09-25 07:28:41,168 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product11.cil.c [2020-09-25 07:28:41,180 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:28:41,192 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:28:41,215 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:28:41,244 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:28:41,244 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:28:41,244 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:28:41,244 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:28:41,245 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:28:41,245 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:28:41,245 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:28:41,245 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:28:41,270 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states. [2020-09-25 07:28:41,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 07:28:41,286 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:28:41,287 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:28:41,288 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:28:41,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:28:41,294 INFO L82 PathProgramCache]: Analyzing trace with hash -1802056066, now seen corresponding path program 1 times [2020-09-25 07:28:41,305 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:28:41,305 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [728569042] [2020-09-25 07:28:41,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:28:41,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:41,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:42,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:43,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:44,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:45,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:46,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:46,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 07:28:46,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:28:46,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-09-25 07:28:46,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:46,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:46,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:46,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 07:28:46,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:46,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 07:28:47,204 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:28:47,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:28:47,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:47,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:47,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:47,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:28:47,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:47,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-09-25 07:28:47,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:47,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:47,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:47,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:28:47,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:47,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:28:47,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:28:47,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:47,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:47,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:47,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:28:47,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:47,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:28:47,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:47,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:47,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:47,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:28:47,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:47,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:47,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:28:47,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:47,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:47,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:47,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:28:47,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:47,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:28:47,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:47,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:47,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:47,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:28:47,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:47,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:47,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:28:47,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:47,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:47,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:47,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:28:47,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:47,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:28:47,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:47,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:47,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:47,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:28:47,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:47,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:47,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:28:47,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:47,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:47,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:47,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:28:47,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:47,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 07:28:47,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:47,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:47,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:47,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:28:47,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:47,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:47,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:28:47,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:47,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:47,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:47,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:28:47,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:47,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:28:47,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:47,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:47,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:47,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:28:47,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:47,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:47,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 07:28:47,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:47,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:47,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:47,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:28:47,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:47,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:28:47,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:47,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:47,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:47,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:28:47,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:47,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:47,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 07:28:47,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:47,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:47,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:47,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:28:47,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:47,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:28:47,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:47,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:47,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:47,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:28:47,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:47,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:47,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:28:47,599 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [728569042] [2020-09-25 07:28:47,601 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:28:47,602 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:28:47,603 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603467576] [2020-09-25 07:28:47,610 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:28:47,610 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:28:47,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:28:47,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:28:47,633 INFO L87 Difference]: Start difference. First operand 275 states. Second operand 4 states. [2020-09-25 07:28:48,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:28:48,818 INFO L93 Difference]: Finished difference Result 377 states and 450 transitions. [2020-09-25 07:28:48,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 07:28:48,821 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-25 07:28:48,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:28:48,842 INFO L225 Difference]: With dead ends: 377 [2020-09-25 07:28:48,842 INFO L226 Difference]: Without dead ends: 254 [2020-09-25 07:28:48,848 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:28:48,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-09-25 07:28:48,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 208. [2020-09-25 07:28:48,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2020-09-25 07:28:48,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 223 transitions. [2020-09-25 07:28:48,954 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 223 transitions. Word has length 148 [2020-09-25 07:28:48,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:28:48,955 INFO L479 AbstractCegarLoop]: Abstraction has 208 states and 223 transitions. [2020-09-25 07:28:48,955 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:28:48,955 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 223 transitions. [2020-09-25 07:28:48,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-25 07:28:48,960 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:28:48,961 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:28:48,961 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:28:48,961 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:28:48,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:28:48,962 INFO L82 PathProgramCache]: Analyzing trace with hash 733508220, now seen corresponding path program 1 times [2020-09-25 07:28:48,962 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:28:48,962 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1028644872] [2020-09-25 07:28:48,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:28:49,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:49,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:49,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:50,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:51,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:52,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:53,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:54,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:54,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-25 07:28:54,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 07:28:54,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5046 [2020-09-25 07:28:54,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:54,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:54,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:28:54,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 07:28:54,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:28:54,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:54,393 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:28:54,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:28:54,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:54,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:54,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:54,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:28:54,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:54,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-25 07:28:54,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:54,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:54,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:54,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:28:54,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:54,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:54,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:28:54,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:54,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:54,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:54,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:28:54,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:54,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:28:54,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:54,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:54,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:54,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:28:54,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:54,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:54,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:28:54,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:54,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:54,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:54,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:28:54,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:54,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:28:54,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:54,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:54,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:54,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:28:54,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:54,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:54,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:28:54,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:54,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:54,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:54,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:28:54,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:54,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:28:54,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:54,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:54,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:54,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:28:54,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:54,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:54,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:28:54,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:54,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:54,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:54,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:28:54,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:54,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:28:54,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:54,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:54,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:54,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:28:54,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:54,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:54,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:28:54,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:54,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:54,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:54,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:28:54,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:54,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:28:54,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:54,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:54,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:54,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:28:54,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:54,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:28:54,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 07:28:54,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:54,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:54,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:54,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:28:54,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:54,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:28:54,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:54,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:54,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:54,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:28:54,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:54,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:54,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 07:28:54,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:54,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:54,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:54,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:28:54,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:54,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:28:54,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:54,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:54,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:54,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:28:54,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:54,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 07:28:54,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:28:54,680 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1028644872] [2020-09-25 07:28:54,680 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:28:54,681 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:28:54,681 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282856729] [2020-09-25 07:28:54,684 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:28:54,685 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:28:54,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:28:54,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:28:54,686 INFO L87 Difference]: Start difference. First operand 208 states and 223 transitions. Second operand 5 states. [2020-09-25 07:28:55,586 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:28:56,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:28:56,546 INFO L93 Difference]: Finished difference Result 297 states and 335 transitions. [2020-09-25 07:28:56,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:28:56,547 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-25 07:28:56,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:28:56,553 INFO L225 Difference]: With dead ends: 297 [2020-09-25 07:28:56,553 INFO L226 Difference]: Without dead ends: 243 [2020-09-25 07:28:56,558 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:28:56,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2020-09-25 07:28:56,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 198. [2020-09-25 07:28:56,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-09-25 07:28:56,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 210 transitions. [2020-09-25 07:28:56,635 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 210 transitions. Word has length 149 [2020-09-25 07:28:56,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:28:56,637 INFO L479 AbstractCegarLoop]: Abstraction has 198 states and 210 transitions. [2020-09-25 07:28:56,637 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:28:56,638 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 210 transitions. [2020-09-25 07:28:56,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-09-25 07:28:56,646 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:28:56,646 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:28:56,646 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:28:56,647 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:28:56,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:28:56,647 INFO L82 PathProgramCache]: Analyzing trace with hash 1528792447, now seen corresponding path program 1 times [2020-09-25 07:28:56,647 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:28:56,648 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1726888513] [2020-09-25 07:28:56,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:28:56,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:56,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:57,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:58,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:58,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:59,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:01,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:01,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-09-25 07:29:01,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:29:01,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-09-25 07:29:01,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:01,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:01,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:29:01,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 07:29:01,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 07:29:01,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:02,081 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:29:02,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:29:02,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:02,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:02,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:02,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:29:02,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:02,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-09-25 07:29:02,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:02,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:02,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:29:02,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:02,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 07:29:02,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:02,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:29:02,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:02,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:02,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:02,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:29:02,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:02,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:29:02,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:02,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:02,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:29:02,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:02,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:29:02,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:02,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:29:02,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:02,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:02,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:02,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:29:02,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:02,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:29:02,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:02,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:02,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:29:02,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:02,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:29:02,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:02,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:29:02,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:02,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:02,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:02,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:29:02,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:02,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:29:02,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:02,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:02,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:29:02,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:02,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:29:02,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:02,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:29:02,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:02,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:02,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:02,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:29:02,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:02,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:29:02,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:02,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:02,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:29:02,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:02,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:29:02,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:02,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:29:02,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:02,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:02,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:02,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:29:02,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:02,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:29:02,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:02,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:02,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:29:02,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:02,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 07:29:02,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:02,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 07:29:02,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:02,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:02,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:02,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:29:02,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:02,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:29:02,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:02,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:02,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:02,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:29:02,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:02,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:02,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 07:29:02,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:02,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:02,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:02,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:29:02,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:02,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:29:02,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:02,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:02,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:02,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:29:02,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:02,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:02,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:29:02,494 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1726888513] [2020-09-25 07:29:02,495 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:29:02,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:29:02,495 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666253249] [2020-09-25 07:29:02,496 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:29:02,496 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:29:02,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:29:02,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:29:02,497 INFO L87 Difference]: Start difference. First operand 198 states and 210 transitions. Second operand 5 states. [2020-09-25 07:29:02,994 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:29:04,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:29:04,086 INFO L93 Difference]: Finished difference Result 416 states and 478 transitions. [2020-09-25 07:29:04,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:29:04,087 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 158 [2020-09-25 07:29:04,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:29:04,091 INFO L225 Difference]: With dead ends: 416 [2020-09-25 07:29:04,091 INFO L226 Difference]: Without dead ends: 333 [2020-09-25 07:29:04,092 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:29:04,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2020-09-25 07:29:04,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 269. [2020-09-25 07:29:04,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2020-09-25 07:29:04,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 292 transitions. [2020-09-25 07:29:04,174 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 292 transitions. Word has length 158 [2020-09-25 07:29:04,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:29:04,174 INFO L479 AbstractCegarLoop]: Abstraction has 269 states and 292 transitions. [2020-09-25 07:29:04,175 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:29:04,175 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 292 transitions. [2020-09-25 07:29:04,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 07:29:04,177 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:29:04,177 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:29:04,177 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:29:04,177 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:29:04,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:29:04,178 INFO L82 PathProgramCache]: Analyzing trace with hash -1048245850, now seen corresponding path program 1 times [2020-09-25 07:29:04,178 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:29:04,179 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1259092625] [2020-09-25 07:29:04,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:29:04,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:04,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:05,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:05,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:09,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:09,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 07:29:09,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:29:09,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-25 07:29:09,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:09,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:09,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:29:09,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 07:29:09,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 07:29:09,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:09,604 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:29:09,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:29:09,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:09,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:09,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:09,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:29:09,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:09,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-25 07:29:09,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:09,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:09,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:09,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:09,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:09,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:09,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:29:09,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:09,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:09,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:09,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:29:09,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:09,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:29:09,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:09,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:09,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:09,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:09,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:09,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:09,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:29:09,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:09,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:09,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:09,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:29:09,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:09,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:29:09,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:09,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:09,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:09,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:09,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:09,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:09,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:29:09,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:09,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:09,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:09,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:29:09,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:09,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:29:09,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:09,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:09,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:09,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:09,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:09,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:09,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:29:09,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:09,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:09,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:09,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:29:09,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:09,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:29:09,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:09,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:09,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:09,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:09,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:09,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:09,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:29:09,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:09,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:09,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:09,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:29:09,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:09,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:29:09,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:09,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:09,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:29:09,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:09,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 07:29:09,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:29:09,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 07:29:09,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:09,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:09,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:09,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:29:09,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:09,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:29:09,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:09,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:09,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:29:09,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:09,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:29:09,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:09,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 07:29:09,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:09,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:09,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:09,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:29:09,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:09,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:29:09,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:09,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:09,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:29:09,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:09,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:29:09,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:29:09,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 07:29:09,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:09,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:09,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:09,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:29:09,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:09,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:29:09,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:09,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:09,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:29:09,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:09,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:29:09,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:09,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:29:09,941 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1259092625] [2020-09-25 07:29:09,942 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:29:09,942 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:29:09,942 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826256257] [2020-09-25 07:29:09,943 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:29:09,944 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:29:09,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:29:09,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:29:09,945 INFO L87 Difference]: Start difference. First operand 269 states and 292 transitions. Second operand 5 states. [2020-09-25 07:29:10,652 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:29:11,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:29:11,962 INFO L93 Difference]: Finished difference Result 528 states and 624 transitions. [2020-09-25 07:29:11,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:29:11,963 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-25 07:29:11,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:29:11,969 INFO L225 Difference]: With dead ends: 528 [2020-09-25 07:29:11,969 INFO L226 Difference]: Without dead ends: 525 [2020-09-25 07:29:11,970 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:29:11,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2020-09-25 07:29:12,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 426. [2020-09-25 07:29:12,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 426 states. [2020-09-25 07:29:12,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 475 transitions. [2020-09-25 07:29:12,061 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 475 transitions. Word has length 161 [2020-09-25 07:29:12,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:29:12,063 INFO L479 AbstractCegarLoop]: Abstraction has 426 states and 475 transitions. [2020-09-25 07:29:12,063 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:29:12,063 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 475 transitions. [2020-09-25 07:29:12,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-09-25 07:29:12,067 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:29:12,067 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-25 07:29:12,068 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:29:12,068 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:29:12,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:29:12,069 INFO L82 PathProgramCache]: Analyzing trace with hash 1518459277, now seen corresponding path program 1 times [2020-09-25 07:29:12,069 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:29:12,069 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [958260949] [2020-09-25 07:29:12,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:29:12,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:12,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:12,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:13,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:13,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:17,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:17,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-09-25 07:29:17,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:29:17,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-09-25 07:29:17,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:17,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:17,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:29:17,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 07:29:17,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 07:29:17,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:17,491 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:29:17,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:29:17,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:17,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:17,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:17,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:29:17,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:17,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-25 07:29:17,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:17,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:17,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:17,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:17,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:17,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:17,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:29:17,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:17,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:17,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:17,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:29:17,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:17,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:29:17,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:17,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:17,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:17,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:17,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:17,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:29:17,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:29:17,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:17,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:17,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:17,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:29:17,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:17,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:29:17,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:17,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:17,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:17,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:17,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:17,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:29:17,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:29:17,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:17,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:17,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:17,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:29:17,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:17,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:29:17,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:17,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:17,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:17,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:17,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:17,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:29:17,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:29:17,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:17,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:17,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:17,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:29:17,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:17,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:29:17,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:17,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:17,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:17,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:17,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:17,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:17,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:29:17,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:17,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:17,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:17,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:29:17,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:17,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:29:17,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:17,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:17,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:17,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:17,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:17,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:29:17,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 07:29:17,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:17,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:17,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:17,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 07:29:17,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:17,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-25 07:29:17,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:17,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:17,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:29:17,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:29:17,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 07:29:17,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:17,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:29:17,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:17,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:17,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:17,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:29:17,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:17,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:29:17,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:17,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:17,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:29:17,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:17,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:29:17,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:29:17,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:29:17,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:17,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:17,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:17,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 07:29:17,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:17,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-25 07:29:17,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:17,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:17,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:29:17,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 07:29:17,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 07:29:17,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:17,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:29:17,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:17,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:17,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:17,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:29:17,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:17,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:29:17,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:17,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:17,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:17,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:17,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:17,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:17,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 07:29:17,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:17,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:17,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:17,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:29:17,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:17,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:29:17,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:17,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:17,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:29:17,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:17,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 07:29:17,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:17,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-25 07:29:17,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:17,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:17,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:17,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:29:17,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:17,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:29:17,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:17,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:17,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:17,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 07:29:17,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:17,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:17,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-25 07:29:17,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:17,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:17,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:17,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:29:17,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:17,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:29:17,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:17,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:17,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:17,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:29:17,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:17,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:29:17,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-09-25 07:29:17,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:17,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:17,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:17,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:29:17,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:17,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:29:17,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:17,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:17,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:17,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:29:17,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:17,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:29:18,033 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 32 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-25 07:29:18,034 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [958260949] [2020-09-25 07:29:18,034 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:29:18,034 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 07:29:18,034 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421271364] [2020-09-25 07:29:18,035 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 07:29:18,035 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:29:18,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 07:29:18,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-09-25 07:29:18,036 INFO L87 Difference]: Start difference. First operand 426 states and 475 transitions. Second operand 11 states. [2020-09-25 07:29:18,556 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:29:20,113 WARN L193 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 192 [2020-09-25 07:29:20,724 WARN L193 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 194 [2020-09-25 07:29:21,356 WARN L193 SmtUtils]: Spent 566.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 192 [2020-09-25 07:29:21,987 WARN L193 SmtUtils]: Spent 591.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 194 [2020-09-25 07:29:22,631 WARN L193 SmtUtils]: Spent 611.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 192 [2020-09-25 07:29:22,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:29:22,889 INFO L93 Difference]: Finished difference Result 616 states and 726 transitions. [2020-09-25 07:29:22,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 07:29:22,890 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 210 [2020-09-25 07:29:22,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:29:22,891 INFO L225 Difference]: With dead ends: 616 [2020-09-25 07:29:22,891 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 07:29:22,896 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2020-09-25 07:29:22,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 07:29:22,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 07:29:22,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 07:29:22,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 07:29:22,897 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 210 [2020-09-25 07:29:22,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:29:22,897 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 07:29:22,897 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 07:29:22,898 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 07:29:22,898 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 07:29:22,898 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:29:22,900 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 07:29:23,110 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 07:29:23,292 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 07:29:23,490 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 07:29:23,664 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:29:23,835 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 07:29:24,034 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 10 [2020-09-25 07:29:24,425 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 194