/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=0.4 --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_spec1_product24.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:04:26,379 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:04:26,383 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:04:26,410 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:04:26,411 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:04:26,412 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:04:26,414 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:04:26,416 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:04:26,419 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:04:26,420 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:04:26,423 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:04:26,425 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:04:26,425 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:04:26,429 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:04:26,430 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:04:26,434 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:04:26,436 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:04:26,437 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:04:26,442 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:04:26,445 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:04:26,448 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:04:26,450 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:04:26,452 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:04:26,453 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:04:26,459 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:04:26,459 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:04:26,459 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:04:26,462 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:04:26,463 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:04:26,466 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:04:26,466 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:04:26,467 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:04:26,468 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:04:26,469 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:04:26,471 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:04:26,471 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:04:26,472 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:04:26,472 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:04:26,472 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:04:26,474 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:04:26,485 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:04:26,486 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 13:04:26,539 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:04:26,540 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:04:26,543 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:04:26,543 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:04:26,543 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:04:26,543 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:04:26,544 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:04:26,544 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:04:26,544 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:04:26,544 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:04:26,545 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:04:26,546 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:04:26,546 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:04:26,546 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:04:26,547 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:04:26,547 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:04:26,547 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:04:26,547 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:04:26,547 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:04:26,548 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:04:26,548 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:04:26,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:04:26,548 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:04:26,548 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:04:26,549 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:04:26,549 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:04:26,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:04:26,549 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:04:26,549 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:04:26,550 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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;log-additional-information=true; [2020-09-25 13:04:27,120 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:04:27,139 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:04:27,144 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:04:27,146 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:04:27,147 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:04:27,148 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product24.cil.c [2020-09-25 13:04:27,251 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f7a773cec/9933266ffd3b417bb338caccff8eeae8/FLAGc31ff8434 [2020-09-25 13:04:27,837 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:04:27,838 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product24.cil.c [2020-09-25 13:04:27,854 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f7a773cec/9933266ffd3b417bb338caccff8eeae8/FLAGc31ff8434 [2020-09-25 13:04:28,156 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f7a773cec/9933266ffd3b417bb338caccff8eeae8 [2020-09-25 13:04:28,170 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:04:28,176 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:04:28,177 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:04:28,178 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:04:28,182 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:04:28,183 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:04:28" (1/1) ... [2020-09-25 13:04:28,188 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6665a633 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:04:28, skipping insertion in model container [2020-09-25 13:04:28,188 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:04:28" (1/1) ... [2020-09-25 13:04:28,198 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:04:28,253 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:04:28,653 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:04:28,764 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:04:28,935 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:04:28,974 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:04:28,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:04:28 WrapperNode [2020-09-25 13:04:28,975 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:04:28,976 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:04:28,976 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:04:28,976 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:04:28,994 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:04:28" (1/1) ... [2020-09-25 13:04:28,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:04:28" (1/1) ... [2020-09-25 13:04:29,018 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:04:28" (1/1) ... [2020-09-25 13:04:29,019 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:04:28" (1/1) ... [2020-09-25 13:04:29,052 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:04:28" (1/1) ... [2020-09-25 13:04:29,065 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:04:28" (1/1) ... [2020-09-25 13:04:29,070 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:04:28" (1/1) ... [2020-09-25 13:04:29,079 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:04:29,079 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:04:29,080 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:04:29,080 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:04:29,081 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:04:28" (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 13:04:29,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:04:29,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:04:29,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 13:04:29,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 13:04:29,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 13:04:29,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 13:04:29,192 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 13:04:29,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 13:04:29,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 13:04:29,193 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 13:04:29,193 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 13:04:29,194 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 13:04:29,194 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 13:04:29,194 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 13:04:29,194 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 13:04:29,195 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 13:04:29,195 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 13:04:29,196 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 13:04:29,196 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 13:04:29,196 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 13:04:29,196 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 13:04:29,197 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 13:04:29,197 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 13:04:29,198 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:04:29,199 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 13:04:29,199 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 13:04:29,199 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 13:04:29,199 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 13:04:29,199 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 13:04:29,200 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 13:04:29,200 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 13:04:29,200 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 13:04:29,200 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 13:04:29,200 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 13:04:29,201 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 13:04:29,201 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 13:04:29,202 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 13:04:29,202 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 13:04:29,202 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 13:04:29,202 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 13:04:29,202 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:04:29,203 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 13:04:29,203 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 13:04:29,203 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 13:04:29,203 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 13:04:29,203 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 13:04:29,203 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 13:04:29,204 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 13:04:29,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 13:04:29,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 13:04:29,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 13:04:29,205 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 13:04:29,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 13:04:29,205 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 13:04:29,206 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 13:04:29,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 13:04:29,206 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 13:04:29,206 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 13:04:29,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 13:04:29,206 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 13:04:29,206 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 13:04:29,207 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 13:04:29,207 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 13:04:29,207 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 13:04:29,207 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 13:04:29,208 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 13:04:29,208 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 13:04:29,208 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 13:04:29,208 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 13:04:29,209 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 13:04:29,209 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 13:04:29,211 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 13:04:29,211 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 13:04:29,211 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 13:04:29,211 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 13:04:29,212 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 13:04:29,212 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 13:04:29,212 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 13:04:29,212 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 13:04:29,212 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 13:04:29,213 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 13:04:29,213 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 13:04:29,214 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:04:29,214 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 13:04:29,214 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 13:04:29,214 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 13:04:29,214 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 13:04:29,215 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 13:04:29,215 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 13:04:29,215 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 13:04:29,215 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 13:04:29,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:04:29,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 13:04:29,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:04:30,542 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:04:30,543 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 13:04:30,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:04:30 BoogieIcfgContainer [2020-09-25 13:04:30,551 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:04:30,552 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:04:30,552 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:04:30,557 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:04:30,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:04:28" (1/3) ... [2020-09-25 13:04:30,558 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13fe9821 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:04:30, skipping insertion in model container [2020-09-25 13:04:30,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:04:28" (2/3) ... [2020-09-25 13:04:30,559 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13fe9821 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:04:30, skipping insertion in model container [2020-09-25 13:04:30,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:04:30" (3/3) ... [2020-09-25 13:04:30,561 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product24.cil.c [2020-09-25 13:04:30,575 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:04:30,587 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:04:30,612 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:04:30,648 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:04:30,649 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:04:30,649 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:04:30,649 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:04:30,649 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:04:30,649 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:04:30,649 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:04:30,650 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:04:30,679 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states. [2020-09-25 13:04:30,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 13:04:30,699 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:04:30,700 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 13:04:30,701 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:04:30,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:04:30,710 INFO L82 PathProgramCache]: Analyzing trace with hash 779831521, now seen corresponding path program 1 times [2020-09-25 13:04:30,722 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:04:30,722 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [690324489] [2020-09-25 13:04:30,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:04:31,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:31,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:31,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:32,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:33,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:36,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:36,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 13:04:36,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:04:36,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-09-25 13:04:36,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:36,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:36,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:04:36,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 13:04:36,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 13:04:36,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 13:04:36,636 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:04:36,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:04:36,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:36,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:36,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:36,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:04:36,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:36,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 301 [2020-09-25 13:04:36,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:37,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:37,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:37,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:37,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 13:04:37,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:37,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:04:37,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:37,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:37,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:37,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:04:37,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:37,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:04:37,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:37,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:37,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:37,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:37,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:04:37,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:04:37,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:04:37,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:37,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:37,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:37,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:04:37,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:37,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:04:37,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:37,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:37,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:37,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:37,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:04:37,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:37,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:04:37,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:37,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:37,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:37,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:04:37,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:37,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 13:04:37,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:37,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:37,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:37,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:37,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:04:37,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:37,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:04:37,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:37,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:37,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:37,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:04:37,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:37,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:04:37,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:37,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:37,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:37,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:37,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:04:37,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:04:37,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 13:04:37,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:37,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:37,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:37,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:04:37,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:37,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:04:37,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:37,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:37,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:04:37,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:04:37,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:04:37,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:37,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 13:04:37,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:37,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:37,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:37,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:04:37,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:37,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:04:37,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:37,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:37,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:04:37,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:04:37,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:04:37,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:37,239 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 13:04:37,240 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [690324489] [2020-09-25 13:04:37,243 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:04:37,244 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 13:04:37,245 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521742645] [2020-09-25 13:04:37,253 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 13:04:37,254 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:04:37,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 13:04:37,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:04:37,282 INFO L87 Difference]: Start difference. First operand 305 states. Second operand 5 states. [2020-09-25 13:04:38,022 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:04:38,968 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:04:41,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:04:41,323 INFO L93 Difference]: Finished difference Result 767 states and 963 transitions. [2020-09-25 13:04:41,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 13:04:41,326 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 142 [2020-09-25 13:04:41,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:04:41,350 INFO L225 Difference]: With dead ends: 767 [2020-09-25 13:04:41,350 INFO L226 Difference]: Without dead ends: 559 [2020-09-25 13:04:41,357 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 13:04:41,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2020-09-25 13:04:41,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 468. [2020-09-25 13:04:41,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 468 states. [2020-09-25 13:04:41,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 535 transitions. [2020-09-25 13:04:41,541 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 535 transitions. Word has length 142 [2020-09-25 13:04:41,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:04:41,542 INFO L479 AbstractCegarLoop]: Abstraction has 468 states and 535 transitions. [2020-09-25 13:04:41,542 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 13:04:41,542 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 535 transitions. [2020-09-25 13:04:41,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 13:04:41,548 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:04:41,549 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:04:41,549 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:04:41,549 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:04:41,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:04:41,550 INFO L82 PathProgramCache]: Analyzing trace with hash -689921157, now seen corresponding path program 1 times [2020-09-25 13:04:41,550 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:04:41,550 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [563685615] [2020-09-25 13:04:41,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:04:41,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:41,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:41,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:42,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:42,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:43,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:46,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:46,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-25 13:04:46,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 13:04:46,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-09-25 13:04:46,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:46,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:46,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 13:04:46,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 13:04:46,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 13:04:46,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:47,082 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:04:47,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:04:47,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:47,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:47,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:47,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:04:47,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:47,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-09-25 13:04:47,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:47,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:47,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:47,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:47,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 13:04:47,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:47,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:04:47,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:47,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:47,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:47,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:04:47,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:47,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:04:47,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:47,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:47,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:47,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:47,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:04:47,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:47,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:04:47,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:47,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:47,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:47,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:04:47,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:47,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:04:47,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:47,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:47,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:47,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:47,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:04:47,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:47,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:04:47,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:47,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:47,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:47,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:04:47,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:47,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:04:47,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:47,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:47,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:47,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:47,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:04:47,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:47,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:04:47,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:47,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:47,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:47,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:04:47,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:47,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:04:47,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:47,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:47,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:47,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:47,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:04:47,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:47,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 13:04:47,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:47,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:47,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:47,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 13:04:47,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:47,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:04:47,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:47,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:47,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:47,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:47,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 13:04:47,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:47,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:04:47,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:47,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:47,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:47,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:04:47,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:47,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:04:47,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:47,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:47,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:04:47,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:47,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:04:47,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:47,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:04:47,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:47,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:47,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:47,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:04:47,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:47,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:04:47,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:47,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:47,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:04:47,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:47,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:04:47,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:47,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 13:04:47,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:47,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:47,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:47,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:04:47,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:47,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 13:04:47,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:47,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:47,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:04:47,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:47,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:04:47,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:47,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 13:04:47,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:47,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:47,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:47,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:04:47,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:47,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:04:47,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:47,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:47,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:04:47,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:04:47,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:04:47,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:47,576 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 13:04:47,577 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [563685615] [2020-09-25 13:04:47,577 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:04:47,577 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 13:04:47,577 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583184538] [2020-09-25 13:04:47,579 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 13:04:47,580 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:04:47,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 13:04:47,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 13:04:47,581 INFO L87 Difference]: Start difference. First operand 468 states and 535 transitions. Second operand 9 states. [2020-09-25 13:04:48,073 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:04:49,094 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:04:49,438 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 13:04:50,475 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:04:50,813 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:04:51,176 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:04:51,565 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 13:04:51,889 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 13:04:52,401 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:04:54,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:04:54,042 INFO L93 Difference]: Finished difference Result 1461 states and 1901 transitions. [2020-09-25 13:04:54,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 13:04:54,042 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 156 [2020-09-25 13:04:54,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:04:54,065 INFO L225 Difference]: With dead ends: 1461 [2020-09-25 13:04:54,065 INFO L226 Difference]: Without dead ends: 1039 [2020-09-25 13:04:54,077 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 13:04:54,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2020-09-25 13:04:54,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 757. [2020-09-25 13:04:54,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 757 states. [2020-09-25 13:04:54,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 757 states to 757 states and 875 transitions. [2020-09-25 13:04:54,282 INFO L78 Accepts]: Start accepts. Automaton has 757 states and 875 transitions. Word has length 156 [2020-09-25 13:04:54,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:04:54,283 INFO L479 AbstractCegarLoop]: Abstraction has 757 states and 875 transitions. [2020-09-25 13:04:54,283 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 13:04:54,284 INFO L276 IsEmpty]: Start isEmpty. Operand 757 states and 875 transitions. [2020-09-25 13:04:54,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-25 13:04:54,288 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:04:54,288 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:04:54,289 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:04:54,289 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:04:54,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:04:54,289 INFO L82 PathProgramCache]: Analyzing trace with hash 1494905052, now seen corresponding path program 1 times [2020-09-25 13:04:54,290 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:04:54,290 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [995316184] [2020-09-25 13:04:54,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:04:54,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:54,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:54,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:55,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:57,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:57,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-25 13:04:57,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:04:57,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3502 [2020-09-25 13:04:57,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:57,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:57,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 13:04:57,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 13:04:57,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-09-25 13:04:57,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:58,250 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:04:58,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:04:58,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:58,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:58,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:58,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:04:58,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:58,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 279 [2020-09-25 13:04:58,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:58,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:58,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:58,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:58,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 13:04:58,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:58,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:04:58,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:58,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:58,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:58,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:04:58,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:58,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:04:58,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:58,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:58,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:58,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:58,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:04:58,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:58,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:04:58,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:58,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:58,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:58,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:04:58,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:58,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:04:58,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:58,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:58,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:58,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:58,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:04:58,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:58,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:04:58,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:58,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:58,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:58,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:04:58,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:58,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:04:58,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:58,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:58,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:58,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:58,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:04:58,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:58,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:04:58,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:58,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:58,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:58,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:04:58,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:58,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:04:58,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:58,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:58,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:58,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:58,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:04:58,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:58,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 13:04:58,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:58,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:58,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:58,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:04:58,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:58,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:04:58,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:58,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:58,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:58,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:58,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 13:04:58,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:58,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 13:04:58,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:58,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:58,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:58,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:58,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:04:58,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:04:58,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 13:04:58,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:58,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:58,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:04:58,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:04:58,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 13:04:58,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:58,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 13:04:58,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:58,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:58,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:58,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:04:58,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:58,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:04:58,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:58,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:58,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:58,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:58,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:04:58,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:58,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-25 13:04:58,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:58,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:58,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:58,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:04:58,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:58,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:04:58,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:58,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:58,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:04:58,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:58,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:04:58,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:58,876 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 13:04:58,877 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [995316184] [2020-09-25 13:04:58,877 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:04:58,877 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 13:04:58,878 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35283794] [2020-09-25 13:04:58,880 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 13:04:58,880 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:04:58,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 13:04:58,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-09-25 13:04:58,882 INFO L87 Difference]: Start difference. First operand 757 states and 875 transitions. Second operand 11 states. [2020-09-25 13:04:59,490 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:05:00,852 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:01,181 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:01,507 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:01,876 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 13:05:02,194 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 13:05:02,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:05:02,803 INFO L93 Difference]: Finished difference Result 1361 states and 1676 transitions. [2020-09-25 13:05:02,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 13:05:02,803 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 166 [2020-09-25 13:05:02,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:05:02,805 INFO L225 Difference]: With dead ends: 1361 [2020-09-25 13:05:02,805 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 13:05:02,809 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2020-09-25 13:05:02,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 13:05:02,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 13:05:02,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 13:05:02,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 13:05:02,811 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 166 [2020-09-25 13:05:02,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:05:02,811 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 13:05:02,811 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 13:05:02,812 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 13:05:02,812 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 13:05:02,812 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:05:02,815 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 13:05:03,009 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:03,165 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:05:03,322 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:03,479 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:03,635 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:03,793 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:03,941 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:05:04,093 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:04,245 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:04,399 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:04,546 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:05:04,703 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:04,863 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:05,012 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:05,182 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:05,338 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:05,504 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:05,782 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 6 [2020-09-25 13:05:06,346 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 189 [2020-09-25 13:05:06,969 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 186 [2020-09-25 13:05:07,521 WARN L193 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 13:05:07,984 WARN L193 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 13:05:08,237 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:08,394 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:08,548 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:08,701 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:08,854 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:09,003 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:09,162 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:09,314 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:09,467 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:09,717 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 6 [2020-09-25 13:05:10,258 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 189 [2020-09-25 13:05:10,875 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 186 [2020-09-25 13:05:11,420 WARN L193 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 13:05:11,879 WARN L193 SmtUtils]: Spent 456.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 13:05:12,219 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 6 [2020-09-25 13:05:12,544 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 188 [2020-09-25 13:05:12,864 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 188 [2020-09-25 13:05:13,189 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 188 [2020-09-25 13:05:13,503 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 187 [2020-09-25 13:05:13,823 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 188 [2020-09-25 13:05:14,159 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 188 [2020-09-25 13:05:14,474 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 187 [2020-09-25 13:05:14,614 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:05:14,761 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:14,908 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:15,052 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:05:15,199 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:05:15,347 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:15,490 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:05:15,644 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:15,797 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:15,941 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:05:16,089 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:16,241 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:16,389 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:16,532 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:05:16,680 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:16,828 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:16,975 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:17,118 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:05:17,270 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:17,424 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:17,580 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:17,728 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:17,879 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:18,028 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:05:18,184 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:18,332 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:18,474 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:05:18,626 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:18,774 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:18,922 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:19,069 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:19,221 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:19,377 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:19,526 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:19,670 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:05:19,823 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:19,974 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:20,126 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:20,280 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:20,427 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:05:20,579 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:20,732 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:20,885 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:21,027 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:05:21,179 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:21,327 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188