/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.1 --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_product62.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 09:53:22,961 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 09:53:22,966 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 09:53:23,009 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 09:53:23,010 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 09:53:23,018 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 09:53:23,020 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 09:53:23,023 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 09:53:23,026 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 09:53:23,029 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 09:53:23,030 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 09:53:23,031 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 09:53:23,031 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 09:53:23,034 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 09:53:23,037 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 09:53:23,040 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 09:53:23,041 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 09:53:23,042 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 09:53:23,044 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 09:53:23,052 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 09:53:23,054 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 09:53:23,055 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 09:53:23,056 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 09:53:23,057 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 09:53:23,069 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 09:53:23,069 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 09:53:23,070 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 09:53:23,076 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 09:53:23,076 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 09:53:23,079 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 09:53:23,079 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 09:53:23,080 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 09:53:23,081 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 09:53:23,085 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 09:53:23,086 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 09:53:23,086 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 09:53:23,087 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 09:53:23,087 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 09:53:23,088 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 09:53:23,089 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 09:53:23,090 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 09:53:23,091 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 09:53:23,136 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 09:53:23,136 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 09:53:23,139 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 09:53:23,139 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 09:53:23,139 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 09:53:23,139 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 09:53:23,140 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 09:53:23,140 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 09:53:23,140 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 09:53:23,140 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 09:53:23,141 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 09:53:23,142 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 09:53:23,142 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 09:53:23,142 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 09:53:23,142 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 09:53:23,143 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 09:53:23,143 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 09:53:23,143 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 09:53:23,143 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 09:53:23,143 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 09:53:23,144 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 09:53:23,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:53:23,144 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 09:53:23,144 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 09:53:23,144 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 09:53:23,145 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 09:53:23,145 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 09:53:23,145 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 09:53:23,145 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 09:53:23,145 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; [2020-09-25 09:53:23,581 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 09:53:23,604 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 09:53:23,608 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 09:53:23,610 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 09:53:23,611 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 09:53:23,612 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product62.cil.c [2020-09-25 09:53:23,682 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2e60044bd/6c612ee1f6964da6822d250fd281e13b/FLAGf59f63339 [2020-09-25 09:53:24,256 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 09:53:24,257 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product62.cil.c [2020-09-25 09:53:24,273 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2e60044bd/6c612ee1f6964da6822d250fd281e13b/FLAGf59f63339 [2020-09-25 09:53:24,533 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2e60044bd/6c612ee1f6964da6822d250fd281e13b [2020-09-25 09:53:24,548 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 09:53:24,554 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 09:53:24,559 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 09:53:24,559 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 09:53:24,563 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 09:53:24,564 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:53:24" (1/1) ... [2020-09-25 09:53:24,569 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cc9c326 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:53:24, skipping insertion in model container [2020-09-25 09:53:24,569 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:53:24" (1/1) ... [2020-09-25 09:53:24,579 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 09:53:24,656 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 09:53:25,191 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:53:25,215 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 09:53:25,346 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:53:25,394 INFO L208 MainTranslator]: Completed translation [2020-09-25 09:53:25,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:53:25 WrapperNode [2020-09-25 09:53:25,396 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 09:53:25,397 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 09:53:25,397 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 09:53:25,398 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 09:53:25,414 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:53:25" (1/1) ... [2020-09-25 09:53:25,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:53:25" (1/1) ... [2020-09-25 09:53:25,435 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:53:25" (1/1) ... [2020-09-25 09:53:25,435 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:53:25" (1/1) ... [2020-09-25 09:53:25,474 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:53:25" (1/1) ... [2020-09-25 09:53:25,492 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:53:25" (1/1) ... [2020-09-25 09:53:25,497 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:53:25" (1/1) ... [2020-09-25 09:53:25,504 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 09:53:25,505 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 09:53:25,505 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 09:53:25,505 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 09:53:25,507 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:53:25" (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 [2020-09-25 09:53:25,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 09:53:25,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 09:53:25,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 09:53:25,583 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 09:53:25,583 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 09:53:25,583 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 09:53:25,583 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 09:53:25,584 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 09:53:25,584 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 09:53:25,584 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 09:53:25,584 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 09:53:25,584 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 09:53:25,585 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 09:53:25,585 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 09:53:25,585 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 09:53:25,585 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 09:53:25,585 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 09:53:25,585 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 09:53:25,586 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 09:53:25,586 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 09:53:25,586 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 09:53:25,586 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 09:53:25,587 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 09:53:25,587 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 09:53:25,587 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 09:53:25,587 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 09:53:25,587 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 09:53:25,587 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 09:53:25,587 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 09:53:25,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 09:53:25,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 09:53:25,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 09:53:25,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 09:53:25,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 09:53:25,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 09:53:25,588 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 09:53:25,589 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 09:53:25,589 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 09:53:25,589 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 09:53:25,589 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 09:53:25,589 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 09:53:25,589 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 09:53:25,590 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 09:53:25,590 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 09:53:25,590 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 09:53:25,590 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 09:53:25,590 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 09:53:25,591 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 09:53:25,591 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 09:53:25,591 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 09:53:25,591 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 09:53:25,591 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 09:53:25,591 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 09:53:25,592 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 09:53:25,592 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 09:53:25,592 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 09:53:25,592 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 09:53:25,592 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 09:53:25,592 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 09:53:25,593 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 09:53:25,593 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 09:53:25,593 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 09:53:25,593 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 09:53:25,593 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 09:53:25,593 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 09:53:25,594 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 09:53:25,594 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 09:53:25,594 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 09:53:25,594 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 09:53:25,594 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 09:53:25,594 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 09:53:25,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 09:53:25,595 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 09:53:25,595 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 09:53:25,595 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 09:53:25,595 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 09:53:25,595 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 09:53:25,595 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 09:53:25,596 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 09:53:25,596 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 09:53:25,596 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 09:53:25,596 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 09:53:25,596 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 09:53:25,596 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 09:53:25,597 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 09:53:25,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 09:53:25,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 09:53:25,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 09:53:25,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 09:53:25,598 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 09:53:25,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 09:53:25,598 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 09:53:25,598 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 09:53:25,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 09:53:25,598 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 09:53:25,599 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 09:53:25,599 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 09:53:25,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 09:53:25,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 09:53:25,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 09:53:26,737 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 09:53:26,737 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 09:53:26,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:53:26 BoogieIcfgContainer [2020-09-25 09:53:26,745 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 09:53:26,746 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 09:53:26,746 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 09:53:26,750 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 09:53:26,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 09:53:24" (1/3) ... [2020-09-25 09:53:26,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@321e85be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:53:26, skipping insertion in model container [2020-09-25 09:53:26,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:53:25" (2/3) ... [2020-09-25 09:53:26,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@321e85be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:53:26, skipping insertion in model container [2020-09-25 09:53:26,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:53:26" (3/3) ... [2020-09-25 09:53:26,754 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product62.cil.c [2020-09-25 09:53:26,765 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 09:53:26,775 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 09:53:26,795 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 09:53:26,823 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 09:53:26,824 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 09:53:26,824 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 09:53:26,824 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 09:53:26,824 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 09:53:26,825 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 09:53:26,825 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 09:53:26,825 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 09:53:26,853 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states. [2020-09-25 09:53:26,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 09:53:26,872 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:53:26,873 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] [2020-09-25 09:53:26,874 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:53:26,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:53:26,882 INFO L82 PathProgramCache]: Analyzing trace with hash 1052921660, now seen corresponding path program 1 times [2020-09-25 09:53:26,893 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:53:26,893 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [986282093] [2020-09-25 09:53:26,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:53:27,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:27,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:27,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:28,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:30,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:32,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:32,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 09:53:32,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:53:32,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-09-25 09:53:32,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:32,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:32,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 09:53:32,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 09:53:32,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 09:53:32,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 09:53:32,750 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:53:32,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:53:32,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:32,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:33,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:33,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:53:33,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:33,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 315 [2020-09-25 09:53:33,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:33,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:33,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:33,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:33,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 09:53:33,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:33,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:53:33,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:33,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:33,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:33,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:53:33,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:33,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:53:33,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:33,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:33,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:33,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:33,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:53:33,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:33,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:53:33,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:33,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:33,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:33,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:53:33,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:33,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:53:33,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:33,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:33,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:33,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:33,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:53:33,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:33,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:53:33,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:33,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:33,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:33,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:53:33,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:33,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 09:53:33,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:33,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:33,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:33,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:33,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:53:33,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:33,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:53:33,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:33,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:33,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:33,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:53:33,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:33,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:53:33,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:33,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:33,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:33,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:33,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:53:33,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:33,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 09:53:33,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:33,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:33,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:33,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:53:33,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:33,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 09:53:33,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:33,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:33,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:53:33,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:33,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:53:33,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 09:53:33,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 09:53:33,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:33,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:33,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:33,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:53:33,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:33,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:53:33,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:33,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:33,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:53:33,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:53:33,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:53:33,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:33,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:53:33,335 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [986282093] [2020-09-25 09:53:33,338 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:53:33,338 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 09:53:33,339 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945950862] [2020-09-25 09:53:33,349 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 09:53:33,350 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:53:33,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 09:53:33,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 09:53:33,374 INFO L87 Difference]: Start difference. First operand 350 states. Second operand 8 states. [2020-09-25 09:53:33,970 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:53:34,913 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:53:35,273 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:53:35,668 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:53:36,081 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:53:36,446 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:53:36,765 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:53:37,095 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:53:40,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:53:40,164 INFO L93 Difference]: Finished difference Result 772 states and 960 transitions. [2020-09-25 09:53:40,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 09:53:40,167 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-25 09:53:40,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:53:40,190 INFO L225 Difference]: With dead ends: 772 [2020-09-25 09:53:40,190 INFO L226 Difference]: Without dead ends: 533 [2020-09-25 09:53:40,197 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 09:53:40,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2020-09-25 09:53:40,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 487. [2020-09-25 09:53:40,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 487 states. [2020-09-25 09:53:40,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 565 transitions. [2020-09-25 09:53:40,392 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 565 transitions. Word has length 142 [2020-09-25 09:53:40,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:53:40,393 INFO L479 AbstractCegarLoop]: Abstraction has 487 states and 565 transitions. [2020-09-25 09:53:40,393 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 09:53:40,393 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 565 transitions. [2020-09-25 09:53:40,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 09:53:40,399 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:53:40,399 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:53:40,400 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 09:53:40,400 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:53:40,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:53:40,400 INFO L82 PathProgramCache]: Analyzing trace with hash 1310581114, now seen corresponding path program 1 times [2020-09-25 09:53:40,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:53:40,401 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [775186078] [2020-09-25 09:53:40,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:53:40,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:40,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:40,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:41,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:44,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:45,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:45,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 09:53:45,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:53:45,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-09-25 09:53:45,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:45,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:45,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 09:53:45,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 09:53:45,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-09-25 09:53:45,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:45,974 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:53:45,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:53:46,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:46,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:46,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:46,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:53:46,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:46,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-09-25 09:53:46,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:46,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:46,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:46,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:46,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 09:53:46,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:46,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:53:46,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:46,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:46,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:46,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:53:46,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:46,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:53:46,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:46,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:46,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:46,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:46,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:53:46,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:46,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:53:46,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:46,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:46,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:46,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:53:46,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:46,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:53:46,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:46,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:46,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:46,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:46,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:53:46,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:46,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:53:46,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:46,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:46,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:46,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:53:46,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:46,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 09:53:46,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:46,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:46,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:46,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:46,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:53:46,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:46,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:53:46,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:46,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:46,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:46,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:53:46,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:46,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:53:46,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:46,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:46,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:46,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:46,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:53:46,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:46,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 09:53:46,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:46,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:46,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:46,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:53:46,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:46,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:53:46,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:46,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:46,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:46,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:46,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 09:53:46,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:46,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 09:53:46,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:46,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:46,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:46,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:53:46,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:46,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 09:53:46,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:46,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:46,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:46,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:46,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:53:46,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:46,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 09:53:46,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:46,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:46,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:46,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:53:46,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:46,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 09:53:46,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:46,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:46,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:53:46,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:46,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:53:46,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:46,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:53:46,481 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [775186078] [2020-09-25 09:53:46,482 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:53:46,482 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 09:53:46,482 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860243717] [2020-09-25 09:53:46,484 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 09:53:46,485 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:53:46,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 09:53:46,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 09:53:46,486 INFO L87 Difference]: Start difference. First operand 487 states and 565 transitions. Second operand 9 states. [2020-09-25 09:53:46,951 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:53:48,921 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:53:49,238 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:53:49,653 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:53:50,226 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:53:50,545 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:53:50,887 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:53:51,202 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 09:53:51,529 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 09:53:52,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:53:52,636 INFO L93 Difference]: Finished difference Result 1133 states and 1513 transitions. [2020-09-25 09:53:52,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 09:53:52,636 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 148 [2020-09-25 09:53:52,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:53:52,645 INFO L225 Difference]: With dead ends: 1133 [2020-09-25 09:53:52,645 INFO L226 Difference]: Without dead ends: 756 [2020-09-25 09:53:52,652 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 09:53:52,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2020-09-25 09:53:52,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 642. [2020-09-25 09:53:52,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 642 states. [2020-09-25 09:53:52,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 785 transitions. [2020-09-25 09:53:52,764 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 785 transitions. Word has length 148 [2020-09-25 09:53:52,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:53:52,765 INFO L479 AbstractCegarLoop]: Abstraction has 642 states and 785 transitions. [2020-09-25 09:53:52,765 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 09:53:52,765 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 785 transitions. [2020-09-25 09:53:52,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2020-09-25 09:53:52,771 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:53:52,772 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:53:52,772 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 09:53:52,772 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:53:52,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:53:52,773 INFO L82 PathProgramCache]: Analyzing trace with hash 1875287345, now seen corresponding path program 1 times [2020-09-25 09:53:52,773 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:53:52,773 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1459128117] [2020-09-25 09:53:52,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:53:52,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:52,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:52,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:53,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:53,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:53,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:57,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:57,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-09-25 09:53:57,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 09:53:57,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4883 [2020-09-25 09:53:57,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:57,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:57,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:57,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 09:53:57,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-09-25 09:53:57,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:53:58,069 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:53:58,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:53:58,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:58,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:58,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:58,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:53:58,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:58,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-25 09:53:58,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:58,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:58,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:53:58,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:58,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:53:58,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:58,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:53:58,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:58,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:58,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:58,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:53:58,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:58,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:53:58,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:58,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:58,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:53:58,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:58,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:53:58,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:58,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:53:58,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:58,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:58,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:58,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:53:58,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:58,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:53:58,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:58,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:58,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:53:58,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:58,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:53:58,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:58,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:53:58,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:58,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:58,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:58,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:53:58,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:58,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:53:58,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:58,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:58,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:53:58,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:58,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:53:58,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:58,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:53:58,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:58,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:58,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:58,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:53:58,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:58,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:53:58,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:58,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:58,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:53:58,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:58,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:53:58,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:58,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 09:53:58,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:58,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:58,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:58,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 09:53:58,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:58,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:53:58,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:58,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:58,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:58,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:58,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 09:53:58,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:58,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 09:53:58,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:58,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:58,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:58,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:58,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-09-25 09:53:58,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:53:58,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-09-25 09:53:58,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:58,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:58,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:58,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:58,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 09:53:58,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:58,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:53:58,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:58,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:58,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:58,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:58,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 09:53:58,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:53:58,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-09-25 09:53:58,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:58,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:58,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:53:58,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 09:53:58,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:53:58,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:58,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:53:58,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:58,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:58,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:58,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 09:53:58,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:58,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-25 09:53:58,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:58,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:58,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:53:58,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 09:53:58,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:53:58,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:58,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:53:58,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:58,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:58,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:58,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 09:53:58,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:58,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 09:53:58,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:58,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:58,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:53:58,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 09:53:58,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:53:58,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:53:59,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:53:59,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:59,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:59,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:59,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 09:53:59,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:59,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 09:53:59,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:59,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:59,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:53:59,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:59,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 09:53:59,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:53:59,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:53:59,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:59,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:59,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:59,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:53:59,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:59,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:53:59,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:59,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:59,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:53:59,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:59,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:53:59,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:53:59,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 09:53:59,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:59,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:59,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:59,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 09:53:59,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:59,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 09:53:59,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:59,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:59,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:53:59,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 09:53:59,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:53:59,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:59,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 09:53:59,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:59,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:59,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:59,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 09:53:59,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:59,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:53:59,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:59,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:59,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:53:59,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:59,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:53:59,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:53:59,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 09:53:59,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:59,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:59,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:59,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:53:59,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:59,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:53:59,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:59,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:59,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:53:59,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:59,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:53:59,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:53:59,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 09:53:59,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:59,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:59,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:59,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 09:53:59,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:59,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:53:59,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:59,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:59,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:53:59,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:59,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:53:59,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:59,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-25 09:53:59,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:59,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:59,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:59,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 09:53:59,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:59,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:53:59,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:59,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:59,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:53:59,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:59,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:53:59,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:59,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:53:59,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:59,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:59,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:59,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:53:59,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:59,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:53:59,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:59,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:59,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:53:59,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:59,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:53:59,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:59,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-09-25 09:53:59,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:59,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:59,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:59,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:53:59,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:59,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:53:59,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:59,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:59,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:53:59,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 09:53:59,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:53:59,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:59,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-09-25 09:53:59,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:59,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:59,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:59,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:53:59,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:59,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:53:59,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:59,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:59,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:53:59,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:53:59,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:53:59,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:59,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2020-09-25 09:53:59,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:59,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:59,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:59,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:53:59,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:59,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:53:59,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:59,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:59,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:53:59,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:53:59,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:53:59,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:59,435 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-25 09:53:59,436 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1459128117] [2020-09-25 09:53:59,436 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:53:59,436 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-25 09:53:59,437 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331396816] [2020-09-25 09:53:59,437 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 09:53:59,438 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:53:59,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 09:53:59,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-09-25 09:53:59,438 INFO L87 Difference]: Start difference. First operand 642 states and 785 transitions. Second operand 13 states. [2020-09-25 09:54:00,130 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:54:01,228 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:54:01,519 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:54:01,839 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 09:54:02,167 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:54:02,498 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:54:02,780 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:54:04,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:54:04,472 INFO L93 Difference]: Finished difference Result 1446 states and 1971 transitions. [2020-09-25 09:54:04,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-25 09:54:04,473 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 251 [2020-09-25 09:54:04,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:54:04,480 INFO L225 Difference]: With dead ends: 1446 [2020-09-25 09:54:04,480 INFO L226 Difference]: Without dead ends: 914 [2020-09-25 09:54:04,483 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=193, Invalid=677, Unknown=0, NotChecked=0, Total=870 [2020-09-25 09:54:04,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2020-09-25 09:54:04,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 618. [2020-09-25 09:54:04,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 618 states. [2020-09-25 09:54:04,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 714 transitions. [2020-09-25 09:54:04,570 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 714 transitions. Word has length 251 [2020-09-25 09:54:04,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:54:04,571 INFO L479 AbstractCegarLoop]: Abstraction has 618 states and 714 transitions. [2020-09-25 09:54:04,571 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 09:54:04,571 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 714 transitions. [2020-09-25 09:54:04,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2020-09-25 09:54:04,575 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:54:04,575 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:54:04,576 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 09:54:04,576 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:54:04,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:54:04,576 INFO L82 PathProgramCache]: Analyzing trace with hash 2056771545, now seen corresponding path program 1 times [2020-09-25 09:54:04,577 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:54:04,577 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1831727660] [2020-09-25 09:54:04,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:54:04,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:54:04,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:54:04,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:54:06,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:54:06,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 323 [2020-09-25 09:54:06,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:54:06,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1667 [2020-09-25 09:54:06,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:54:06,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:54:06,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:54:06,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 275 [2020-09-25 09:54:06,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 09:54:06,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:54:06,599 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:54:06,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:54:06,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:54:06,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:54:06,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:54:06,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:54:06,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:54:06,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-25 09:54:06,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:54:06,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:54:06,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:54:06,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:54:06,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:54:06,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:54:06,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:54:06,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:54:06,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:54:06,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:54:06,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:54:06,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:54:06,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:54:06,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:54:06,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:54:06,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:54:06,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:54:06,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:54:06,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:54:06,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:54:06,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:54:06,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:54:06,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:54:06,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:54:06,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:54:06,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:54:06,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:54:06,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:54:06,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:54:06,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:54:06,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:54:06,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:54:06,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:54:06,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:54:06,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:54:06,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:54:06,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:54:06,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:54:06,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:54:06,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:54:06,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:54:06,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:54:06,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:54:06,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:54:06,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:54:06,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:54:06,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:54:06,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:54:06,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:54:06,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:54:06,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:54:06,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:54:06,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:54:06,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:54:06,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:54:06,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:54:06,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:54:06,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:54:06,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 09:54:06,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:54:06,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:54:06,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:54:06,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 09:54:06,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:54:06,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:54:06,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:54:06,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:54:06,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:54:06,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:54:06,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:54:06,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:54:06,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 09:54:06,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:54:06,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:54:06,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:54:06,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:54:06,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-09-25 09:54:06,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:54:06,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-09-25 09:54:06,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:54:06,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:54:06,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:54:06,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-09-25 09:54:06,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:54:06,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:54:06,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:54:06,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:54:06,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:54:07,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:54:07,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 09:54:07,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:54:07,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-25 09:54:07,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:54:07,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:54:07,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:54:07,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-25 09:54:07,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:54:07,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:54:07,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:54:07,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:54:07,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:54:07,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:54:07,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 09:54:07,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:54:07,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-25 09:54:07,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:54:07,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:54:07,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:54:07,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 09:54:07,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:54:07,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:54:07,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:54:07,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:54:07,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:54:07,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:54:07,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 09:54:07,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:54:07,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-25 09:54:07,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:54:07,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:54:07,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:54:07,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 09:54:07,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:54:07,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:54:07,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:54:07,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:54:07,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:54:07,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:54:07,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 09:54:07,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:54:07,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 09:54:07,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:54:07,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:54:07,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:54:07,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 09:54:07,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:54:07,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:54:07,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:54:07,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:54:07,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:54:07,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:54:07,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:54:07,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:54:07,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:54:07,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:54:07,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:54:07,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:54:07,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:54:07,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:54:07,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:54:07,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 09:54:07,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:54:07,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:54:07,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:54:07,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 09:54:07,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:54:07,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 09:54:07,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:54:07,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:54:07,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:54:07,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 09:54:07,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:54:07,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:54:07,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 09:54:07,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:54:07,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:54:07,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:54:07,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 09:54:07,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:54:07,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:54:07,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:54:07,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:54:07,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:54:07,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:54:07,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:54:07,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:54:07,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 09:54:07,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:54:07,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:54:07,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:54:07,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:54:07,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:54:07,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:54:07,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:54:07,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:54:07,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:54:07,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:54:07,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:54:07,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:54:07,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 09:54:07,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:54:07,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:54:07,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:54:07,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 09:54:07,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:54:07,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:54:07,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:54:07,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:54:07,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:54:07,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:54:07,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:54:07,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 50 [2020-09-25 09:54:07,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-25 09:54:07,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:54:07,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:54:07,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:54:07,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 09:54:07,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:54:07,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:54:07,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:54:07,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:54:07,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:54:07,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 09:54:07,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:54:07,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:54:07,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:54:07,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:54:07,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:54:07,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:54:07,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:54:07,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:54:07,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:54:07,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:54:07,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:54:07,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:54:07,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:54:07,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:54:07,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:54:07,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-09-25 09:54:07,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:54:07,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:54:07,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:54:07,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 09:54:07,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:54:07,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:54:07,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:54:07,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:54:07,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:54:07,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:54:07,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 09:54:07,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:54:07,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2020-09-25 09:54:07,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:54:07,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:54:07,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:54:07,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:54:07,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:54:07,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 09:54:07,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:54:07,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:54:07,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:54:07,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:54:07,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 09:54:07,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:54:07,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2020-09-25 09:54:07,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:54:07,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:54:07,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:54:07,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:54:07,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:54:07,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:54:07,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:54:07,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:54:07,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:54:07,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:54:07,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:54:07,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:54:07,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2020-09-25 09:54:07,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:54:07,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:54:07,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:54:07,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:54:07,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:54:07,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:54:07,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:54:07,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:54:07,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:54:07,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:54:07,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:54:07,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:54:07,578 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-09-25 09:54:07,578 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1831727660] [2020-09-25 09:54:07,578 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:54:07,579 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 09:54:07,579 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194763476] [2020-09-25 09:54:07,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 09:54:07,580 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:54:07,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 09:54:07,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-09-25 09:54:07,581 INFO L87 Difference]: Start difference. First operand 618 states and 714 transitions. Second operand 12 states. [2020-09-25 09:54:08,122 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:54:09,121 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:54:09,418 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:54:09,736 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:54:10,048 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:54:10,336 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:54:12,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:54:12,641 INFO L93 Difference]: Finished difference Result 1380 states and 1791 transitions. [2020-09-25 09:54:12,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 09:54:12,641 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 264 [2020-09-25 09:54:12,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:54:12,649 INFO L225 Difference]: With dead ends: 1380 [2020-09-25 09:54:12,649 INFO L226 Difference]: Without dead ends: 872 [2020-09-25 09:54:12,652 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=207, Invalid=495, Unknown=0, NotChecked=0, Total=702 [2020-09-25 09:54:12,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 872 states. [2020-09-25 09:54:12,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 872 to 583. [2020-09-25 09:54:12,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 583 states. [2020-09-25 09:54:12,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 666 transitions. [2020-09-25 09:54:12,735 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 666 transitions. Word has length 264 [2020-09-25 09:54:12,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:54:12,736 INFO L479 AbstractCegarLoop]: Abstraction has 583 states and 666 transitions. [2020-09-25 09:54:12,736 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 09:54:12,736 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 666 transitions. [2020-09-25 09:54:12,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2020-09-25 09:54:12,742 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:54:12,743 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1] [2020-09-25 09:54:12,743 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 09:54:12,743 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:54:12,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:54:12,744 INFO L82 PathProgramCache]: Analyzing trace with hash -175622350, now seen corresponding path program 1 times [2020-09-25 09:54:12,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:54:12,744 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1500158934] [2020-09-25 09:54:12,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:54:12,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:54:12,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:54:13,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking...