/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=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --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_spec4_product51.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 19:12:22,961 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 19:12:22,966 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 19:12:23,012 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 19:12:23,013 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 19:12:23,023 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 19:12:23,025 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 19:12:23,029 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 19:12:23,031 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 19:12:23,035 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 19:12:23,036 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 19:12:23,037 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 19:12:23,037 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 19:12:23,040 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 19:12:23,043 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 19:12:23,044 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 19:12:23,045 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 19:12:23,047 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 19:12:23,049 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 19:12:23,055 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 19:12:23,058 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 19:12:23,059 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 19:12:23,060 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 19:12:23,061 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 19:12:23,066 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 19:12:23,066 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 19:12:23,066 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 19:12:23,069 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 19:12:23,069 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 19:12:23,071 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 19:12:23,071 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 19:12:23,072 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 19:12:23,073 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 19:12:23,074 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 19:12:23,075 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 19:12:23,075 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 19:12:23,076 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 19:12:23,076 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 19:12:23,077 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 19:12:23,077 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 19:12:23,079 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 19:12:23,080 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 [2020-09-24 19:12:23,128 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 19:12:23,128 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 19:12:23,130 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 19:12:23,131 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 19:12:23,131 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 19:12:23,131 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 19:12:23,132 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 19:12:23,132 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 19:12:23,132 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 19:12:23,132 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 19:12:23,133 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 19:12:23,133 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 19:12:23,134 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 19:12:23,134 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 19:12:23,134 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 19:12:23,134 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 19:12:23,135 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 19:12:23,135 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 19:12:23,135 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 19:12:23,135 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 19:12:23,136 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 19:12:23,136 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:12:23,136 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 19:12:23,136 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 19:12:23,136 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 19:12:23,137 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 19:12:23,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 19:12:23,137 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 19:12:23,137 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 19:12:23,137 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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 19:12:23,572 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 19:12:23,594 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 19:12:23,600 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 19:12:23,603 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 19:12:23,603 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 19:12:23,604 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product51.cil.c [2020-09-24 19:12:23,681 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4a4f91ea3/3abda96e61c84ce38cf5c278888c99f5/FLAGcf575dc93 [2020-09-24 19:12:24,280 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 19:12:24,281 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product51.cil.c [2020-09-24 19:12:24,295 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4a4f91ea3/3abda96e61c84ce38cf5c278888c99f5/FLAGcf575dc93 [2020-09-24 19:12:24,583 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4a4f91ea3/3abda96e61c84ce38cf5c278888c99f5 [2020-09-24 19:12:24,596 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 19:12:24,602 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 19:12:24,603 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 19:12:24,604 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 19:12:24,608 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 19:12:24,609 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:12:24" (1/1) ... [2020-09-24 19:12:24,613 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@493ee38e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:12:24, skipping insertion in model container [2020-09-24 19:12:24,613 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:12:24" (1/1) ... [2020-09-24 19:12:24,622 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 19:12:24,669 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 19:12:25,140 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:12:25,158 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 19:12:25,275 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:12:25,314 INFO L208 MainTranslator]: Completed translation [2020-09-24 19:12:25,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:12:25 WrapperNode [2020-09-24 19:12:25,315 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 19:12:25,316 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 19:12:25,316 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 19:12:25,316 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 19:12:25,332 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:12:25" (1/1) ... [2020-09-24 19:12:25,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:12:25" (1/1) ... [2020-09-24 19:12:25,353 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:12:25" (1/1) ... [2020-09-24 19:12:25,353 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:12:25" (1/1) ... [2020-09-24 19:12:25,389 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:12:25" (1/1) ... [2020-09-24 19:12:25,400 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:12:25" (1/1) ... [2020-09-24 19:12:25,409 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:12:25" (1/1) ... [2020-09-24 19:12:25,423 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 19:12:25,424 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 19:12:25,424 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 19:12:25,424 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 19:12:25,429 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:12:25" (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 [2020-09-24 19:12:25,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 19:12:25,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 19:12:25,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 19:12:25,509 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 19:12:25,509 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 19:12:25,509 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 19:12:25,509 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 19:12:25,509 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 19:12:25,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-24 19:12:25,511 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 19:12:25,511 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 19:12:25,511 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 19:12:25,511 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 19:12:25,512 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 19:12:25,512 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 19:12:25,513 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 19:12:25,513 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 19:12:25,513 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 19:12:25,513 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 19:12:25,514 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 19:12:25,514 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 19:12:25,514 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 19:12:25,514 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 19:12:25,514 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 19:12:25,514 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 19:12:25,515 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 19:12:25,515 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 19:12:25,515 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 19:12:25,515 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 19:12:25,515 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 19:12:25,515 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 19:12:25,515 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 19:12:25,516 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 19:12:25,516 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 19:12:25,516 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 19:12:25,516 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 19:12:25,516 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 19:12:25,516 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 19:12:25,516 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 19:12:25,516 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 19:12:25,517 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 19:12:25,517 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 19:12:25,517 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 19:12:25,517 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 19:12:25,517 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 19:12:25,517 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 19:12:25,517 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 19:12:25,518 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 19:12:25,518 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 19:12:25,518 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 19:12:25,518 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 19:12:25,519 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 19:12:25,519 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 19:12:25,519 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 19:12:25,519 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 19:12:25,519 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 19:12:25,520 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 19:12:25,520 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 19:12:25,520 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 19:12:25,520 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 19:12:25,520 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-24 19:12:25,520 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 19:12:25,520 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 19:12:25,521 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 19:12:25,521 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 19:12:25,521 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 19:12:25,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 19:12:25,521 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 19:12:25,521 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 19:12:25,522 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 19:12:25,522 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 19:12:25,524 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 19:12:25,524 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 19:12:25,524 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 19:12:25,524 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 19:12:25,524 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 19:12:25,525 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 19:12:25,525 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 19:12:25,525 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 19:12:25,525 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 19:12:25,525 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 19:12:25,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 19:12:25,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 19:12:25,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 19:12:25,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 19:12:25,527 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 19:12:25,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 19:12:25,527 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 19:12:25,527 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 19:12:25,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 19:12:25,528 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 19:12:25,528 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 19:12:25,528 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 19:12:25,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 19:12:25,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 19:12:25,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 19:12:26,615 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 19:12:26,615 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 19:12:26,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:12:26 BoogieIcfgContainer [2020-09-24 19:12:26,622 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 19:12:26,624 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 19:12:26,624 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 19:12:26,627 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 19:12:26,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:12:24" (1/3) ... [2020-09-24 19:12:26,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36589e3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:12:26, skipping insertion in model container [2020-09-24 19:12:26,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:12:25" (2/3) ... [2020-09-24 19:12:26,629 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36589e3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:12:26, skipping insertion in model container [2020-09-24 19:12:26,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:12:26" (3/3) ... [2020-09-24 19:12:26,631 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product51.cil.c [2020-09-24 19:12:26,641 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 19:12:26,652 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 19:12:26,670 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 19:12:26,701 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 19:12:26,701 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 19:12:26,702 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 19:12:26,702 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 19:12:26,702 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 19:12:26,702 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 19:12:26,702 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 19:12:26,702 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 19:12:26,729 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states. [2020-09-24 19:12:26,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 19:12:26,747 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:12:26,748 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] [2020-09-24 19:12:26,749 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:12:26,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:12:26,757 INFO L82 PathProgramCache]: Analyzing trace with hash -2089318466, now seen corresponding path program 1 times [2020-09-24 19:12:26,765 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:12:26,766 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [839640337] [2020-09-24 19:12:26,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:12:27,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:27,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:27,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:28,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:28,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 19:12:28,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:12:28,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1027 [2020-09-24 19:12:28,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:28,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:28,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 19:12:28,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:28,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 19:12:28,490 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:12:28,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:12:28,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:28,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:28,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:28,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:12:28,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:28,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 185 [2020-09-24 19:12:28,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:28,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:28,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:28,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:28,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:28,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:12:28,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:28,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:28,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:28,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:28,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:28,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:12:28,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:28,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:28,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:28,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:28,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:28,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:12:28,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:28,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:28,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:28,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:28,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:28,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:28,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:28,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:28,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:28,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:28,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:28,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:12:28,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:28,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:28,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:28,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:28,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:28,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:12:28,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:28,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:28,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:28,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:28,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:28,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:12:28,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:28,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:28,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:28,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:28,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:28,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:28,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:28,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:28,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:28,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:28,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:28,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 19:12:28,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:28,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:28,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:28,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:28,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:28,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:28,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:28,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:28,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:12:28,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:28,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:28,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 19:12:28,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:28,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:28,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:28,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:28,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:28,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:12:28,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:28,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:28,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:12:28,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:28,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:28,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:12:28,843 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [839640337] [2020-09-24 19:12:28,846 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:12:28,846 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:12:28,847 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101803942] [2020-09-24 19:12:28,853 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:12:28,854 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:12:28,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:12:28,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:12:28,875 INFO L87 Difference]: Start difference. First operand 318 states. Second operand 3 states. [2020-09-24 19:12:30,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:12:30,211 INFO L93 Difference]: Finished difference Result 503 states and 599 transitions. [2020-09-24 19:12:30,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:12:30,214 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-24 19:12:30,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:12:30,235 INFO L225 Difference]: With dead ends: 503 [2020-09-24 19:12:30,235 INFO L226 Difference]: Without dead ends: 310 [2020-09-24 19:12:30,240 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:12:30,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2020-09-24 19:12:30,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 267. [2020-09-24 19:12:30,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2020-09-24 19:12:30,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 291 transitions. [2020-09-24 19:12:30,344 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 291 transitions. Word has length 142 [2020-09-24 19:12:30,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:12:30,345 INFO L479 AbstractCegarLoop]: Abstraction has 267 states and 291 transitions. [2020-09-24 19:12:30,345 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:12:30,346 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 291 transitions. [2020-09-24 19:12:30,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-24 19:12:30,357 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:12:30,357 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] [2020-09-24 19:12:30,357 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 19:12:30,358 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:12:30,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:12:30,358 INFO L82 PathProgramCache]: Analyzing trace with hash -1777948049, now seen corresponding path program 1 times [2020-09-24 19:12:30,358 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:12:30,361 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [904779676] [2020-09-24 19:12:30,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:12:30,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:30,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:30,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:31,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:31,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-24 19:12:31,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:12:31,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1055 [2020-09-24 19:12:31,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:31,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:31,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 19:12:31,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:12:31,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:31,854 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:12:31,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:12:31,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:31,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:31,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:31,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:12:31,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:31,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-24 19:12:31,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:31,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:31,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:31,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:31,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:32,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:12:32,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:32,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:32,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:32,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:32,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:32,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:32,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:32,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:32,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:32,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:32,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:32,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:12:32,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:32,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:32,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:32,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:32,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:32,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:32,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:32,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:32,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:32,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:32,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:32,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:12:32,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:32,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:32,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:32,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:32,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:32,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:12:32,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:32,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:32,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:32,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:32,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:32,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:12:32,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:32,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:32,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:32,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:32,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:32,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:32,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:32,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:32,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:32,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:32,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:32,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 19:12:32,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:32,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:32,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:32,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:32,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:32,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:32,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:32,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:32,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:12:32,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:32,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:32,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 19:12:32,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:32,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:32,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:32,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:32,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:32,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:32,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:32,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:32,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:12:32,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:32,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:32,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:12:32,070 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [904779676] [2020-09-24 19:12:32,071 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:12:32,071 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 19:12:32,071 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606823192] [2020-09-24 19:12:32,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 19:12:32,074 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:12:32,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 19:12:32,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 19:12:32,074 INFO L87 Difference]: Start difference. First operand 267 states and 291 transitions. Second operand 4 states. [2020-09-24 19:12:32,728 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:12:33,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:12:33,742 INFO L93 Difference]: Finished difference Result 414 states and 466 transitions. [2020-09-24 19:12:33,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 19:12:33,749 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-24 19:12:33,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:12:33,753 INFO L225 Difference]: With dead ends: 414 [2020-09-24 19:12:33,753 INFO L226 Difference]: Without dead ends: 293 [2020-09-24 19:12:33,755 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:12:33,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-09-24 19:12:33,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 257. [2020-09-24 19:12:33,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2020-09-24 19:12:33,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 278 transitions. [2020-09-24 19:12:33,806 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 278 transitions. Word has length 143 [2020-09-24 19:12:33,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:12:33,806 INFO L479 AbstractCegarLoop]: Abstraction has 257 states and 278 transitions. [2020-09-24 19:12:33,807 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 19:12:33,807 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 278 transitions. [2020-09-24 19:12:33,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-09-24 19:12:33,809 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:12:33,809 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] [2020-09-24 19:12:33,810 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 19:12:33,810 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:12:33,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:12:33,810 INFO L82 PathProgramCache]: Analyzing trace with hash 1080014380, now seen corresponding path program 1 times [2020-09-24 19:12:33,811 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:12:33,811 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [634800611] [2020-09-24 19:12:33,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:12:33,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:33,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:34,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:34,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:34,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 19:12:34,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:12:34,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1012 [2020-09-24 19:12:34,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:34,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:12:34,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 19:12:34,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 19:12:34,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:35,164 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:12:35,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:12:35,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:35,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:35,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:35,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:12:35,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:35,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-09-24 19:12:35,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:35,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:35,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:35,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:35,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:35,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:12:35,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:35,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:35,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:35,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:35,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:35,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:35,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:35,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:35,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:35,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:35,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:35,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:12:35,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:35,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:35,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:35,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:35,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:35,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:12:35,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:35,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:35,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:35,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:35,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:35,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:12:35,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:35,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:35,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:35,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:35,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:35,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:35,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:35,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:35,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:35,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:35,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:35,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:12:35,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:35,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:35,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:35,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:35,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:35,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:12:35,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:35,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:35,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:35,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:35,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:35,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 19:12:35,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:35,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:35,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:35,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:35,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:35,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:12:35,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:35,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:35,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:35,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:12:35,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:35,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-24 19:12:35,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:35,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:35,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:35,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:35,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:35,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:12:35,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:35,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:12:35,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:35,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:12:35,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:35,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:12:35,455 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [634800611] [2020-09-24 19:12:35,456 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:12:35,456 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 19:12:35,456 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486350855] [2020-09-24 19:12:35,458 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 19:12:35,459 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:12:35,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 19:12:35,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 19:12:35,460 INFO L87 Difference]: Start difference. First operand 257 states and 278 transitions. Second operand 8 states. [2020-09-24 19:12:35,977 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:12:37,008 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:12:37,337 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:12:37,652 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:12:37,975 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:12:38,321 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:12:38,905 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:12:39,197 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:12:39,505 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:12:40,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:12:40,361 INFO L93 Difference]: Finished difference Result 523 states and 611 transitions. [2020-09-24 19:12:40,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 19:12:40,362 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 152 [2020-09-24 19:12:40,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:12:40,366 INFO L225 Difference]: With dead ends: 523 [2020-09-24 19:12:40,366 INFO L226 Difference]: Without dead ends: 376 [2020-09-24 19:12:40,368 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-24 19:12:40,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2020-09-24 19:12:40,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 345. [2020-09-24 19:12:40,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2020-09-24 19:12:40,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 386 transitions. [2020-09-24 19:12:40,417 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 386 transitions. Word has length 152 [2020-09-24 19:12:40,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:12:40,418 INFO L479 AbstractCegarLoop]: Abstraction has 345 states and 386 transitions. [2020-09-24 19:12:40,418 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 19:12:40,418 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 386 transitions. [2020-09-24 19:12:40,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-24 19:12:40,421 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:12:40,422 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:12:40,422 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 19:12:40,422 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:12:40,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:12:40,423 INFO L82 PathProgramCache]: Analyzing trace with hash -1513602354, now seen corresponding path program 1 times [2020-09-24 19:12:40,423 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:12:40,423 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [969395429] [2020-09-24 19:12:40,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:12:40,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:40,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:41,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:41,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:41,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-24 19:12:41,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:12:41,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1025 [2020-09-24 19:12:41,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:41,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:12:41,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-09-24 19:12:41,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:12:41,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:41,760 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:12:41,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:12:41,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:41,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:41,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:41,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:12:41,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:41,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-24 19:12:41,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:41,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:41,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:41,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:41,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:41,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:12:41,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:41,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:41,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:41,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:41,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:41,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:41,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:41,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:41,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:41,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:41,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:41,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:12:41,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:41,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:41,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:41,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:41,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:41,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:12:41,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:41,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:41,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:41,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:41,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:41,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:12:41,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:41,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:41,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:41,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:41,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:41,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:12:41,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:41,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:41,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:41,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:41,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:41,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:12:41,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:41,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:41,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:41,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:41,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:41,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:41,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:41,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:41,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:41,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:41,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:41,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 19:12:41,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:41,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:42,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:42,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 19:12:42,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:42,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-24 19:12:42,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:42,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:12:42,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 19:12:42,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:12:42,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:42,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:12:42,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:42,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:42,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:42,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 19:12:42,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:42,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-09-24 19:12:42,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:42,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:12:42,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 19:12:42,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:12:42,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:42,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:12:42,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:42,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:42,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:42,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:12:42,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:42,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-24 19:12:42,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:42,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:12:42,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:42,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 19:12:42,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:42,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:12:42,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:42,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:42,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:42,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:12:42,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:42,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:12:42,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:42,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:42,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:42,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:42,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:42,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:12:42,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:42,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:42,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:42,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:12:42,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:42,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:12:42,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:42,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:42,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 19:12:42,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:42,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:42,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-24 19:12:42,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:42,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:42,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:42,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:42,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:42,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:42,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:42,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:42,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:12:42,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:42,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:42,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-24 19:12:42,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:42,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:42,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:42,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:42,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:42,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:42,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:42,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:42,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:12:42,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:42,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:42,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:12:42,427 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [969395429] [2020-09-24 19:12:42,428 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:12:42,428 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 19:12:42,428 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113821400] [2020-09-24 19:12:42,429 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 19:12:42,429 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:12:42,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 19:12:42,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:12:42,430 INFO L87 Difference]: Start difference. First operand 345 states and 386 transitions. Second operand 9 states. [2020-09-24 19:12:43,829 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:12:44,058 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:12:44,382 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:12:44,655 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:12:44,972 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:12:45,257 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:12:46,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:12:46,119 INFO L93 Difference]: Finished difference Result 645 states and 759 transitions. [2020-09-24 19:12:46,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 19:12:46,122 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 190 [2020-09-24 19:12:46,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:12:46,128 INFO L225 Difference]: With dead ends: 645 [2020-09-24 19:12:46,128 INFO L226 Difference]: Without dead ends: 410 [2020-09-24 19:12:46,131 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2020-09-24 19:12:46,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2020-09-24 19:12:46,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 356. [2020-09-24 19:12:46,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2020-09-24 19:12:46,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 397 transitions. [2020-09-24 19:12:46,236 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 397 transitions. Word has length 190 [2020-09-24 19:12:46,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:12:46,237 INFO L479 AbstractCegarLoop]: Abstraction has 356 states and 397 transitions. [2020-09-24 19:12:46,237 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 19:12:46,237 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 397 transitions. [2020-09-24 19:12:46,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-24 19:12:46,243 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:12:46,243 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:12:46,244 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 19:12:46,244 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:12:46,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:12:46,245 INFO L82 PathProgramCache]: Analyzing trace with hash 1807494766, now seen corresponding path program 1 times [2020-09-24 19:12:46,245 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:12:46,245 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2063866484] [2020-09-24 19:12:46,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:12:46,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:46,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:46,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:47,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:47,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-24 19:12:47,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:12:47,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1025 [2020-09-24 19:12:47,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:47,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:12:47,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-24 19:12:47,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:12:47,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:47,586 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:12:47,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:12:47,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:47,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:47,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:47,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:12:47,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:47,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-24 19:12:47,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:47,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:47,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:47,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:47,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:47,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:12:47,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:47,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:47,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:47,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:47,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:47,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:12:47,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:47,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:47,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:47,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:47,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:47,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:12:47,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:47,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:47,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:47,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:47,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:47,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:47,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:47,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:47,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:47,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:47,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:47,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:12:47,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:47,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:47,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:47,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:47,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:47,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:12:47,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:47,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:47,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:47,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:47,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:47,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:12:47,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:47,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:47,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:47,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:47,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:47,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:47,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:47,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:47,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:47,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:47,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:47,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 19:12:47,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:47,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:47,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:47,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 19:12:47,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:47,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-24 19:12:47,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:47,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:12:47,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 19:12:47,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:12:47,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:47,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:12:47,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:47,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:47,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:47,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 19:12:47,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:47,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-24 19:12:47,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:47,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:12:47,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 19:12:47,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:12:47,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:47,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:12:47,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:47,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:47,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:47,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:12:47,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:47,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 19:12:47,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:47,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:12:47,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 19:12:47,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:12:47,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:47,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:12:47,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:47,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:48,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:48,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:12:48,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:48,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:12:48,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:48,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:12:48,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:48,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:12:48,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:48,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:12:48,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:48,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:48,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:48,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:12:48,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:48,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:12:48,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:48,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:48,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 19:12:48,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:48,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:48,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-24 19:12:48,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:48,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:48,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:48,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:48,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:48,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:12:48,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:48,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:48,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:12:48,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:48,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:48,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-24 19:12:48,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:48,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:48,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:48,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:48,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:48,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:48,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:48,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:48,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:12:48,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:48,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:48,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:12:48,093 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2063866484] [2020-09-24 19:12:48,093 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:12:48,093 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 19:12:48,094 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421669266] [2020-09-24 19:12:48,094 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 19:12:48,095 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:12:48,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 19:12:48,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-24 19:12:48,096 INFO L87 Difference]: Start difference. First operand 356 states and 397 transitions. Second operand 8 states. [2020-09-24 19:12:49,309 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:12:49,598 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:12:49,925 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:12:50,257 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:12:50,549 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:12:51,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:12:51,450 INFO L93 Difference]: Finished difference Result 667 states and 792 transitions. [2020-09-24 19:12:51,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 19:12:51,452 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 190 [2020-09-24 19:12:51,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:12:51,456 INFO L225 Difference]: With dead ends: 667 [2020-09-24 19:12:51,456 INFO L226 Difference]: Without dead ends: 421 [2020-09-24 19:12:51,458 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2020-09-24 19:12:51,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2020-09-24 19:12:51,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 362. [2020-09-24 19:12:51,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 362 states. [2020-09-24 19:12:51,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 403 transitions. [2020-09-24 19:12:51,506 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 403 transitions. Word has length 190 [2020-09-24 19:12:51,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:12:51,506 INFO L479 AbstractCegarLoop]: Abstraction has 362 states and 403 transitions. [2020-09-24 19:12:51,507 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 19:12:51,507 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 403 transitions. [2020-09-24 19:12:51,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-24 19:12:51,509 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:12:51,510 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:12:51,510 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 19:12:51,510 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:12:51,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:12:51,511 INFO L82 PathProgramCache]: Analyzing trace with hash 167200785, now seen corresponding path program 1 times [2020-09-24 19:12:51,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:12:51,511 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1411124873] [2020-09-24 19:12:51,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:12:51,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:51,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:52,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:52,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:52,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-24 19:12:52,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:12:52,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1048 [2020-09-24 19:12:52,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:52,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:12:52,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-09-24 19:12:52,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-24 19:12:52,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:52,958 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:12:52,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:12:52,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:52,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:53,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:53,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:12:53,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:53,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-09-24 19:12:53,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:53,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:53,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:53,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:53,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:53,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:12:53,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:53,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:53,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:53,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:53,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:53,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:53,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:53,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:53,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:53,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:53,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:53,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:12:53,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:53,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:53,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:53,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:53,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:53,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:53,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:53,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:53,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:53,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:53,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:53,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:12:53,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:53,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:53,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:53,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:53,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:53,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:12:53,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:53,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:53,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:53,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:53,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:53,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:12:53,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:53,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:53,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:53,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:53,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:53,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:53,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:53,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:53,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:53,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:53,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:53,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 19:12:53,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:53,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:53,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:53,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 19:12:53,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:53,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-24 19:12:53,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:53,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:53,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:53,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 19:12:53,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:53,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:12:53,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:53,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:53,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:53,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 19:12:53,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:53,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 19:12:53,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:53,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:53,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:53,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 19:12:53,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:53,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:12:53,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:53,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:53,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:53,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:12:53,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:53,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 19:12:53,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:53,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:53,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:53,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:12:53,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:53,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:12:53,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:53,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:53,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:53,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:12:53,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:53,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:12:53,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:53,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:53,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:53,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:12:53,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:53,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:12:53,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:53,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:53,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:53,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:12:53,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:53,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:12:53,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:53,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:53,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:53,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:12:53,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:53,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-24 19:12:53,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:53,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:53,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:53,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:53,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:53,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:12:53,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:53,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:12:53,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:53,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:12:53,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:53,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-24 19:12:53,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:53,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:53,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:53,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:53,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:53,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:12:53,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:53,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:53,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:12:53,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:53,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:53,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:12:53,453 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1411124873] [2020-09-24 19:12:53,455 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:12:53,455 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 19:12:53,456 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265946094] [2020-09-24 19:12:53,456 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 19:12:53,457 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:12:53,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 19:12:53,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:12:53,458 INFO L87 Difference]: Start difference. First operand 362 states and 403 transitions. Second operand 9 states. [2020-09-24 19:12:54,407 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:12:55,157 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:12:55,491 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:12:55,851 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:12:56,184 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:12:56,530 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:12:56,913 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:12:57,228 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:12:59,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:12:59,155 INFO L93 Difference]: Finished difference Result 849 states and 1046 transitions. [2020-09-24 19:12:59,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 19:12:59,156 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 190 [2020-09-24 19:12:59,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:12:59,160 INFO L225 Difference]: With dead ends: 849 [2020-09-24 19:12:59,161 INFO L226 Difference]: Without dead ends: 597 [2020-09-24 19:12:59,166 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 26 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-24 19:12:59,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2020-09-24 19:12:59,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 505. [2020-09-24 19:12:59,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 505 states. [2020-09-24 19:12:59,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 582 transitions. [2020-09-24 19:12:59,244 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 582 transitions. Word has length 190 [2020-09-24 19:12:59,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:12:59,245 INFO L479 AbstractCegarLoop]: Abstraction has 505 states and 582 transitions. [2020-09-24 19:12:59,245 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 19:12:59,245 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 582 transitions. [2020-09-24 19:12:59,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2020-09-24 19:12:59,250 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:12:59,250 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:12:59,251 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 19:12:59,251 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:12:59,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:12:59,251 INFO L82 PathProgramCache]: Analyzing trace with hash -1030078164, now seen corresponding path program 1 times [2020-09-24 19:12:59,252 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:12:59,252 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [411626790] [2020-09-24 19:12:59,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:12:59,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:59,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:59,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:59,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:00,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:00,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 282 [2020-09-24 19:13:00,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:13:00,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-24 19:13:00,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:00,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:13:00,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-24 19:13:00,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-24 19:13:00,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:00,605 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:13:00,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:13:00,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:00,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:00,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:00,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:13:00,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:00,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-24 19:13:00,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:00,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:00,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:00,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:00,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:00,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:13:00,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:00,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:00,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:00,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:13:00,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:00,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:13:00,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:00,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:00,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:00,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:00,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:00,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:13:00,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:00,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:00,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:00,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:13:00,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:00,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:13:00,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:00,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:00,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:00,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:00,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:00,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:13:00,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:00,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:00,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:00,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:13:00,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:00,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:13:00,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:00,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:00,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:00,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:00,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:00,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:13:00,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:00,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:00,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:00,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:13:00,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:00,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:13:00,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:00,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:00,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:00,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:00,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:00,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 19:13:00,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:00,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:00,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:00,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:13:00,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:00,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:13:00,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:00,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:00,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:00,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:00,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:00,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 19:13:00,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:00,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:00,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:00,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-24 19:13:00,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:00,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-24 19:13:00,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:00,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:13:00,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:00,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:13:00,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:00,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:13:00,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:00,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:00,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:00,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 19:13:00,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:00,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 19:13:00,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:00,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:13:00,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:00,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-24 19:13:00,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:00,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:13:00,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:00,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:00,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:00,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 19:13:00,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:00,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 19:13:00,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:00,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:00,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:00,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:00,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:00,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:13:00,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:00,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:00,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:00,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:13:00,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:00,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:13:00,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:00,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:00,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:00,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:00,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:00,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:13:00,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:00,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:00,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:00,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:13:00,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:00,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:13:00,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:00,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:00,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:00,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:00,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:00,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:13:00,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:00,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:00,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:00,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:13:00,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:00,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:13:00,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:00,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:00,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:00,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:00,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:00,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-24 19:13:00,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:00,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:00,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:00,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 19:13:00,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:00,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 19:13:00,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:00,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:13:00,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:00,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 19:13:00,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:00,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:13:00,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:00,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:00,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:00,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:13:00,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:00,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:13:00,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:00,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:00,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:00,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:00,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:00,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2020-09-24 19:13:00,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:00,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:00,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:00,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:13:00,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:00,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:13:00,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:00,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:13:00,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:00,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:13:00,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:00,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-09-24 19:13:00,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:00,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:00,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:00,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:13:00,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:00,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:13:00,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:00,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:00,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:13:00,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:00,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:00,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-09-24 19:13:00,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:00,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:00,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:00,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:13:00,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:00,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:13:00,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:00,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:00,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:13:00,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:00,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:01,033 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 24 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 19:13:01,034 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [411626790] [2020-09-24 19:13:01,034 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:13:01,034 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 19:13:01,034 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715857675] [2020-09-24 19:13:01,035 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 19:13:01,035 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:13:01,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 19:13:01,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:13:01,036 INFO L87 Difference]: Start difference. First operand 505 states and 582 transitions. Second operand 7 states. [2020-09-24 19:13:01,524 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:13:03,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:13:03,308 INFO L93 Difference]: Finished difference Result 1308 states and 1643 transitions. [2020-09-24 19:13:03,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 19:13:03,308 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 233 [2020-09-24 19:13:03,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:13:03,314 INFO L225 Difference]: With dead ends: 1308 [2020-09-24 19:13:03,314 INFO L226 Difference]: Without dead ends: 913 [2020-09-24 19:13:03,317 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:13:03,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2020-09-24 19:13:03,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 618. [2020-09-24 19:13:03,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 618 states. [2020-09-24 19:13:03,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 714 transitions. [2020-09-24 19:13:03,401 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 714 transitions. Word has length 233 [2020-09-24 19:13:03,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:13:03,402 INFO L479 AbstractCegarLoop]: Abstraction has 618 states and 714 transitions. [2020-09-24 19:13:03,402 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 19:13:03,402 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 714 transitions. [2020-09-24 19:13:03,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2020-09-24 19:13:03,407 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:13:03,408 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:13:03,408 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 19:13:03,408 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:13:03,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:13:03,409 INFO L82 PathProgramCache]: Analyzing trace with hash 1792884435, now seen corresponding path program 1 times [2020-09-24 19:13:03,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:13:03,409 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1646608811] [2020-09-24 19:13:03,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:13:03,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:03,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:03,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:03,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:04,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:04,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 339 [2020-09-24 19:13:04,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:13:04,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1012 [2020-09-24 19:13:04,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:04,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:13:04,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-09-24 19:13:04,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:13:04,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:04,734 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:13:04,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:13:04,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:04,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:04,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:04,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:13:04,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:04,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-24 19:13:04,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:04,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:04,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:04,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:04,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:04,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:13:04,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:04,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:04,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:04,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:13:04,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:04,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:13:04,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:04,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:04,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:04,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:04,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:04,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:13:04,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:04,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:04,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:04,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:13:04,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:04,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:13:04,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:04,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:04,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:04,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:04,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:04,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:13:04,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:04,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:04,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:04,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:13:04,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:04,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:13:04,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:04,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:04,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:04,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:04,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:04,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:13:04,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:04,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:04,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:04,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:13:04,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:04,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:13:04,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:04,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:04,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:04,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:04,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:04,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 19:13:04,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:04,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:04,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:04,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:13:04,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:04,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:13:04,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:04,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:04,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:04,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:04,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:04,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 19:13:04,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:04,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:04,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:04,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:13:04,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:04,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:13:04,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:04,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:13:04,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:04,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:13:04,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:04,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 19:13:04,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:04,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:05,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:05,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-24 19:13:05,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:05,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 19:13:05,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:05,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:13:05,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 19:13:05,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-24 19:13:05,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:05,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:13:05,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:05,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:05,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:05,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 19:13:05,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:05,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 19:13:05,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:05,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:13:05,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:05,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-24 19:13:05,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:05,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:13:05,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:05,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:05,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:05,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 19:13:05,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:05,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 19:13:05,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:05,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:05,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:05,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:05,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:05,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:13:05,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:05,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:05,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:05,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:13:05,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:05,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:13:05,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:05,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:05,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:05,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:05,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:05,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:13:05,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:05,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:05,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:05,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:13:05,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:05,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:13:05,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:05,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:05,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:05,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:05,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:05,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:13:05,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:05,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:05,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:05,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:13:05,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:05,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:13:05,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:05,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:05,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:05,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:05,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:05,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-24 19:13:05,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:05,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:05,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:05,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 19:13:05,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:05,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 19:13:05,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:05,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:13:05,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:05,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 19:13:05,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:05,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:13:05,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:05,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:05,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:05,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:13:05,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:05,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:13:05,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:05,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:05,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:05,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:05,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:05,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-09-24 19:13:05,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:05,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:05,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:05,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:13:05,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:05,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:13:05,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:05,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:05,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:13:05,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:05,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:05,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-09-24 19:13:05,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:05,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:05,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:05,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-24 19:13:05,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:05,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 19:13:05,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:05,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:05,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-09-24 19:13:05,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:05,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:05,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:13:05,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:05,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:05,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:05,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-24 19:13:05,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:05,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 19:13:05,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:05,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:05,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:05,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:05,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 19:13:05,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:13:05,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:05,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:05,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:05,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:13:05,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:05,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:13:05,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:05,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:05,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:05,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:05,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:05,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 19:13:05,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:05,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:05,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:05,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 19:13:05,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:05,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:13:05,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:05,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:05,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:05,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:05,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:05,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:13:05,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:05,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:05,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:05,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:13:05,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:05,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:13:05,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:05,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:05,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:05,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:05,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:05,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2020-09-24 19:13:05,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:05,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:05,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:05,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:13:05,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:05,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:13:05,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:05,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:05,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:13:05,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:05,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:05,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2020-09-24 19:13:05,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:05,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:05,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:05,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:13:05,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:05,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:13:05,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:05,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:05,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:13:05,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:05,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:05,363 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-09-24 19:13:05,364 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1646608811] [2020-09-24 19:13:05,364 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:13:05,364 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 19:13:05,365 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089063276] [2020-09-24 19:13:05,365 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 19:13:05,366 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:13:05,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 19:13:05,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:13:05,366 INFO L87 Difference]: Start difference. First operand 618 states and 714 transitions. Second operand 9 states. [2020-09-24 19:13:05,844 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:13:06,644 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:13:08,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:13:08,553 INFO L93 Difference]: Finished difference Result 1425 states and 1757 transitions. [2020-09-24 19:13:08,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 19:13:08,554 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 278 [2020-09-24 19:13:08,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:13:08,559 INFO L225 Difference]: With dead ends: 1425 [2020-09-24 19:13:08,559 INFO L226 Difference]: Without dead ends: 657 [2020-09-24 19:13:08,562 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2020-09-24 19:13:08,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2020-09-24 19:13:08,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 486. [2020-09-24 19:13:08,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 486 states. [2020-09-24 19:13:08,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 553 transitions. [2020-09-24 19:13:08,646 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 553 transitions. Word has length 278 [2020-09-24 19:13:08,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:13:08,647 INFO L479 AbstractCegarLoop]: Abstraction has 486 states and 553 transitions. [2020-09-24 19:13:08,647 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 19:13:08,647 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 553 transitions. [2020-09-24 19:13:08,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-09-24 19:13:08,653 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:13:08,653 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:13:08,654 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 19:13:08,654 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:13:08,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:13:08,654 INFO L82 PathProgramCache]: Analyzing trace with hash -1165087793, now seen corresponding path program 1 times [2020-09-24 19:13:08,654 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:13:08,655 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [192463228] [2020-09-24 19:13:08,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:13:08,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:08,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:08,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:09,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:09,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 328 [2020-09-24 19:13:09,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:13:09,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1034 [2020-09-24 19:13:09,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:09,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 19:13:09,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 19:13:09,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-24 19:13:09,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:10,085 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:13:10,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:13:10,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:10,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:10,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:10,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:13:10,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:10,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 219 [2020-09-24 19:13:10,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:10,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:13:10,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:10,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 19:13:10,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:10,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:13:10,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:10,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:10,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:10,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:13:10,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:10,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:13:10,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:10,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:13:10,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:10,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:13:10,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:10,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:13:10,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:10,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:10,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:10,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:13:10,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:10,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:13:10,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:10,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:13:10,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:10,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:13:10,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:10,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:13:10,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:10,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:10,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:10,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:13:10,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:10,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:13:10,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:10,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:13:10,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:10,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:13:10,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:10,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:13:10,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:10,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:10,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:10,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:13:10,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:10,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:13:10,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:10,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:13:10,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:10,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:13:10,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:10,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 19:13:10,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:10,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:10,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:10,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:13:10,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:10,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:13:10,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:10,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:13:10,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 19:13:10,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:13:10,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:10,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 19:13:10,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:10,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:10,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:10,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-24 19:13:10,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:10,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 19:13:10,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:10,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:10,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-09-24 19:13:10,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:10,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:10,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:13:10,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:10,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:10,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:10,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 19:13:10,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:10,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 19:13:10,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:10,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:10,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:10,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:10,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:10,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:13:10,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:10,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:10,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:10,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 19:13:10,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:10,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 19:13:10,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:10,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:10,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:10,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:10,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:10,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:13:10,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:10,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:10,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:10,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:13:10,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:10,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:13:10,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:10,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:10,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:10,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:10,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:10,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:13:10,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:10,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:10,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:10,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:13:10,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:10,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:13:10,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:10,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:10,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:10,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:10,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:10,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:13:10,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:10,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:10,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:10,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:13:10,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:10,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:13:10,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:10,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:10,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:10,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:10,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:10,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-24 19:13:10,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:10,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:10,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:10,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 19:13:10,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:10,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:13:10,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:10,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:10,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:10,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:10,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:10,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:13:10,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:10,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:10,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:10,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:13:10,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:10,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:13:10,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:10,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:10,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:10,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:10,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:10,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2020-09-24 19:13:10,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:10,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:10,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:10,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:13:10,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:10,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:13:10,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:10,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:10,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:13:10,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:10,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:10,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-09-24 19:13:10,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:10,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:10,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:10,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-24 19:13:10,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:10,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 19:13:10,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:10,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:10,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-09-24 19:13:10,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:10,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:10,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:13:10,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:10,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:10,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:10,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-24 19:13:10,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:10,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:13:10,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:10,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:10,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:10,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:10,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:10,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:13:10,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:10,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:10,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:10,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:13:10,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:10,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:13:10,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:10,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:10,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:10,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:10,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:10,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 19:13:10,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:10,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:10,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:10,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 19:13:10,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:10,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:13:10,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:10,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:10,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:10,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:10,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:10,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:13:10,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:10,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:10,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:10,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:13:10,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:10,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:13:10,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:10,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:10,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:10,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:10,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:10,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-09-24 19:13:10,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:10,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:10,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:10,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:13:10,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:10,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:13:10,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:10,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:10,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:13:10,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:10,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:10,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-09-24 19:13:10,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:10,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:10,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:10,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:13:10,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:10,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:13:10,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:10,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:10,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:13:10,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:10,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:10,769 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-09-24 19:13:10,769 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [192463228] [2020-09-24 19:13:10,769 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:13:10,769 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 19:13:10,769 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997535661] [2020-09-24 19:13:10,770 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 19:13:10,770 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:13:10,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 19:13:10,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-09-24 19:13:10,771 INFO L87 Difference]: Start difference. First operand 486 states and 553 transitions. Second operand 8 states. [2020-09-24 19:13:11,292 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:13:12,148 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:13:13,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:13:13,738 INFO L93 Difference]: Finished difference Result 1050 states and 1227 transitions. [2020-09-24 19:13:13,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 19:13:13,739 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 269 [2020-09-24 19:13:13,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:13:13,743 INFO L225 Difference]: With dead ends: 1050 [2020-09-24 19:13:13,743 INFO L226 Difference]: Without dead ends: 674 [2020-09-24 19:13:13,745 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2020-09-24 19:13:13,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2020-09-24 19:13:13,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 607. [2020-09-24 19:13:13,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 607 states. [2020-09-24 19:13:13,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 678 transitions. [2020-09-24 19:13:13,829 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 678 transitions. Word has length 269 [2020-09-24 19:13:13,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:13:13,830 INFO L479 AbstractCegarLoop]: Abstraction has 607 states and 678 transitions. [2020-09-24 19:13:13,830 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 19:13:13,830 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 678 transitions. [2020-09-24 19:13:13,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2020-09-24 19:13:13,833 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:13:13,834 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:13:13,834 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 19:13:13,834 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:13:13,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:13:13,834 INFO L82 PathProgramCache]: Analyzing trace with hash 1715786112, now seen corresponding path program 1 times [2020-09-24 19:13:13,835 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:13:13,835 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2039399190] [2020-09-24 19:13:13,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:13:13,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:13,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:14,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:14,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:14,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 329 [2020-09-24 19:13:14,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:13:14,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-24 19:13:14,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:14,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 19:13:14,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 175 [2020-09-24 19:13:14,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-09-24 19:13:14,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0