/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=0.3 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 12:06:26,201 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 12:06:26,206 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 12:06:26,250 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 12:06:26,250 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 12:06:26,262 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 12:06:26,264 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 12:06:26,268 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 12:06:26,271 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 12:06:26,275 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 12:06:26,276 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 12:06:26,278 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 12:06:26,278 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 12:06:26,281 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 12:06:26,285 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 12:06:26,287 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 12:06:26,290 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 12:06:26,291 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 12:06:26,293 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 12:06:26,301 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 12:06:26,303 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 12:06:26,304 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 12:06:26,305 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 12:06:26,306 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 12:06:26,309 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 12:06:26,309 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 12:06:26,309 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 12:06:26,310 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 12:06:26,311 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 12:06:26,312 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 12:06:26,312 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 12:06:26,313 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 12:06:26,314 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 12:06:26,315 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 12:06:26,316 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 12:06:26,316 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 12:06:26,317 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 12:06:26,317 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 12:06:26,318 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 12:06:26,319 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 12:06:26,320 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 12:06:26,321 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 12:06:26,348 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 12:06:26,349 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 12:06:26,350 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 12:06:26,351 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 12:06:26,351 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 12:06:26,351 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 12:06:26,351 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 12:06:26,352 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 12:06:26,352 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 12:06:26,352 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 12:06:26,352 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 12:06:26,352 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 12:06:26,352 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 12:06:26,353 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 12:06:26,353 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 12:06:26,353 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 12:06:26,353 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 12:06:26,354 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 12:06:26,354 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 12:06:26,354 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 12:06:26,354 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 12:06:26,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:06:26,355 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 12:06:26,355 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 12:06:26,355 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 12:06:26,355 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 12:06:26,355 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 12:06:26,356 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 12:06:26,356 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 12:06:26,356 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=0.3;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=0.3;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=0.3;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=0.3;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=0.3;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=0.3;log-additional-information=true; [2020-09-25 12:06:26,829 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 12:06:26,856 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 12:06:26,862 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 12:06:26,864 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 12:06:26,865 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 12:06:26,867 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product28.cil.c [2020-09-25 12:06:26,968 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6fd8c189a/ffc9e831c6204c6fbc70b4ad0cd06c06/FLAGa7dd2938f [2020-09-25 12:06:27,611 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 12:06:27,612 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product28.cil.c [2020-09-25 12:06:27,634 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6fd8c189a/ffc9e831c6204c6fbc70b4ad0cd06c06/FLAGa7dd2938f [2020-09-25 12:06:27,949 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6fd8c189a/ffc9e831c6204c6fbc70b4ad0cd06c06 [2020-09-25 12:06:27,962 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 12:06:27,967 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 12:06:27,968 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 12:06:27,968 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 12:06:27,973 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 12:06:27,974 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:06:27" (1/1) ... [2020-09-25 12:06:27,979 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59e4cf0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:27, skipping insertion in model container [2020-09-25 12:06:27,979 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:06:27" (1/1) ... [2020-09-25 12:06:27,989 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 12:06:28,049 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 12:06:28,501 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:06:28,518 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 12:06:28,659 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:06:28,702 INFO L208 MainTranslator]: Completed translation [2020-09-25 12:06:28,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:28 WrapperNode [2020-09-25 12:06:28,703 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 12:06:28,704 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 12:06:28,704 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 12:06:28,704 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 12:06:28,721 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:28" (1/1) ... [2020-09-25 12:06:28,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:28" (1/1) ... [2020-09-25 12:06:28,743 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:28" (1/1) ... [2020-09-25 12:06:28,744 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:28" (1/1) ... [2020-09-25 12:06:28,777 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:28" (1/1) ... [2020-09-25 12:06:28,788 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:28" (1/1) ... [2020-09-25 12:06:28,796 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:28" (1/1) ... [2020-09-25 12:06:28,805 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 12:06:28,806 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 12:06:28,806 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 12:06:28,806 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 12:06:28,808 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:28" (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 12:06:28,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 12:06:28,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 12:06:28,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 12:06:28,903 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 12:06:28,904 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 12:06:28,904 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 12:06:28,904 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 12:06:28,905 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 12:06:28,905 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 12:06:28,906 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 12:06:28,906 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 12:06:28,906 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 12:06:28,906 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 12:06:28,906 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 12:06:28,907 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 12:06:28,908 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 12:06:28,908 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 12:06:28,908 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 12:06:28,908 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 12:06:28,909 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 12:06:28,909 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 12:06:28,909 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 12:06:28,910 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 12:06:28,910 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 12:06:28,910 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 12:06:28,911 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 12:06:28,911 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 12:06:28,911 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 12:06:28,911 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 12:06:28,912 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 12:06:28,912 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 12:06:28,912 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 12:06:28,912 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 12:06:28,912 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 12:06:28,912 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 12:06:28,912 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 12:06:28,913 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 12:06:28,913 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 12:06:28,913 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 12:06:28,913 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 12:06:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 12:06:28,914 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 12:06:28,914 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 12:06:28,914 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 12:06:28,914 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 12:06:28,914 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 12:06:28,914 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 12:06:28,915 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 12:06:28,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 12:06:28,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 12:06:28,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 12:06:28,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 12:06:28,916 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 12:06:28,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 12:06:28,917 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 12:06:28,917 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 12:06:28,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 12:06:28,917 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 12:06:28,917 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 12:06:28,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 12:06:28,918 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 12:06:28,918 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 12:06:28,918 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 12:06:28,919 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 12:06:28,919 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 12:06:28,919 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 12:06:28,919 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 12:06:28,919 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 12:06:28,920 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 12:06:28,920 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 12:06:28,921 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 12:06:28,922 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 12:06:28,922 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 12:06:28,923 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 12:06:28,923 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 12:06:28,923 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 12:06:28,923 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 12:06:28,923 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 12:06:28,923 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 12:06:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 12:06:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 12:06:28,925 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 12:06:28,925 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 12:06:28,925 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 12:06:28,925 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 12:06:28,925 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 12:06:28,926 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 12:06:28,926 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 12:06:28,926 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 12:06:28,926 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 12:06:28,926 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 12:06:28,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 12:06:28,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 12:06:28,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 12:06:30,168 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 12:06:30,168 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 12:06:30,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:06:30 BoogieIcfgContainer [2020-09-25 12:06:30,176 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 12:06:30,177 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 12:06:30,177 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 12:06:30,181 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 12:06:30,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:06:27" (1/3) ... [2020-09-25 12:06:30,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15c8d515 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:06:30, skipping insertion in model container [2020-09-25 12:06:30,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:28" (2/3) ... [2020-09-25 12:06:30,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15c8d515 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:06:30, skipping insertion in model container [2020-09-25 12:06:30,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:06:30" (3/3) ... [2020-09-25 12:06:30,186 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product28.cil.c [2020-09-25 12:06:30,198 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 12:06:30,209 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 12:06:30,233 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 12:06:30,270 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 12:06:30,270 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 12:06:30,270 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 12:06:30,271 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 12:06:30,271 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 12:06:30,271 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 12:06:30,271 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 12:06:30,271 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 12:06:30,300 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states. [2020-09-25 12:06:30,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 12:06:30,319 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:06:30,321 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 12:06:30,321 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:06:30,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:06:30,329 INFO L82 PathProgramCache]: Analyzing trace with hash 2129634346, now seen corresponding path program 1 times [2020-09-25 12:06:30,342 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:06:30,343 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1525392114] [2020-09-25 12:06:30,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:06:30,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:30,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:31,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:32,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:33,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:35,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:35,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 12:06:35,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:06:35,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 12:06:35,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:35,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:35,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 12:06:35,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 12:06:35,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 12:06:35,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 12:06:36,215 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 12:06:36,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:06:36,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:36,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:36,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:36,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 12:06:36,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:36,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 295 [2020-09-25 12:06:36,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:36,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:36,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:36,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:36,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 12:06:36,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:36,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 12:06:36,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:36,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:36,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:36,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:06:36,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:36,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:06:36,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:36,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:36,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:36,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:36,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:06:36,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:36,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 12:06:36,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:36,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:36,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:36,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:06:36,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:36,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:06:36,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:36,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:36,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:36,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:36,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:06:36,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:36,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 12:06:36,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:36,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:36,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:36,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:06:36,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:36,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 12:06:36,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:36,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:36,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:36,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:36,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:06:36,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:36,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 12:06:36,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:36,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:36,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:36,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:06:36,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:36,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:06:36,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:36,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:36,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:36,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:36,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:06:36,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:36,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 12:06:36,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:36,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:36,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:36,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:06:36,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:36,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:06:36,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:36,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:36,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:06:36,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:06:36,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:06:36,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:36,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 12:06:36,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:36,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:36,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:36,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:06:36,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:36,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:06:36,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:36,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:36,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:06:36,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:06:36,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:06:36,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:36,729 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 12:06:36,730 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1525392114] [2020-09-25 12:06:36,732 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:06:36,733 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 12:06:36,734 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127540516] [2020-09-25 12:06:36,741 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 12:06:36,742 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:06:36,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 12:06:36,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 12:06:36,768 INFO L87 Difference]: Start difference. First operand 285 states. Second operand 4 states. [2020-09-25 12:06:37,398 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 12:06:39,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:06:39,438 INFO L93 Difference]: Finished difference Result 590 states and 720 transitions. [2020-09-25 12:06:39,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 12:06:39,440 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2020-09-25 12:06:39,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:06:39,463 INFO L225 Difference]: With dead ends: 590 [2020-09-25 12:06:39,463 INFO L226 Difference]: Without dead ends: 416 [2020-09-25 12:06:39,469 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 12:06:39,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2020-09-25 12:06:39,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 348. [2020-09-25 12:06:39,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2020-09-25 12:06:39,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 387 transitions. [2020-09-25 12:06:39,633 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 387 transitions. Word has length 142 [2020-09-25 12:06:39,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:06:39,634 INFO L479 AbstractCegarLoop]: Abstraction has 348 states and 387 transitions. [2020-09-25 12:06:39,634 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 12:06:39,634 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 387 transitions. [2020-09-25 12:06:39,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-09-25 12:06:39,639 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:06:39,639 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] [2020-09-25 12:06:39,640 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 12:06:39,640 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:06:39,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:06:39,640 INFO L82 PathProgramCache]: Analyzing trace with hash -1863854366, now seen corresponding path program 1 times [2020-09-25 12:06:39,641 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:06:39,641 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [110662909] [2020-09-25 12:06:39,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:06:39,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:39,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:39,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:41,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:41,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:44,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:44,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 12:06:44,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:06:44,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 12:06:44,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:44,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:44,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 12:06:44,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 12:06:44,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-09-25 12:06:44,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:45,046 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 12:06:45,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:06:45,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:45,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:45,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:45,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 12:06:45,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:45,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-09-25 12:06:45,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:45,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:45,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:45,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:45,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 12:06:45,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:45,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 12:06:45,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:45,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:45,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:45,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:06:45,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:45,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:06:45,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:45,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:45,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:45,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:45,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:06:45,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:06:45,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 12:06:45,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:45,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:45,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:45,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:06:45,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:45,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:06:45,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:45,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:45,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:45,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:45,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:06:45,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:45,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 12:06:45,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:45,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:45,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:45,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:06:45,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:45,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 12:06:45,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:45,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:45,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:45,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:45,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:06:45,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:45,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 12:06:45,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:45,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:45,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:45,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:06:45,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:45,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:06:45,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:45,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:45,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:45,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:45,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:06:45,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:45,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 12:06:45,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:45,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:45,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:45,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 12:06:45,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:45,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:06:45,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:45,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:45,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:45,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:45,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 12:06:45,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:45,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:06:45,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:45,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:45,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:45,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:06:45,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:45,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:06:45,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:45,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:45,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:06:45,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:45,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:06:45,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:45,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 12:06:45,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:45,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:45,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:45,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:06:45,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:45,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 12:06:45,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:45,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:45,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:06:45,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:45,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:06:45,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:06:45,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 12:06:45,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:45,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:45,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:45,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:06:45,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:45,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:06:45,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:45,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:45,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:06:45,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:06:45,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:06:45,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:45,507 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 12:06:45,507 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [110662909] [2020-09-25 12:06:45,507 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:06:45,508 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 12:06:45,508 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438514683] [2020-09-25 12:06:45,511 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 12:06:45,511 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:06:45,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 12:06:45,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 12:06:45,512 INFO L87 Difference]: Start difference. First operand 348 states and 387 transitions. Second operand 9 states. [2020-09-25 12:06:46,018 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 12:06:47,348 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:06:47,689 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:06:48,056 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:06:48,411 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 12:06:48,713 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:06:49,010 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:06:49,327 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:06:51,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:06:51,056 INFO L93 Difference]: Finished difference Result 993 states and 1258 transitions. [2020-09-25 12:06:51,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 12:06:51,058 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 151 [2020-09-25 12:06:51,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:06:51,068 INFO L225 Difference]: With dead ends: 993 [2020-09-25 12:06:51,068 INFO L226 Difference]: Without dead ends: 755 [2020-09-25 12:06:51,072 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-25 12:06:51,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2020-09-25 12:06:51,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 579. [2020-09-25 12:06:51,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 579 states. [2020-09-25 12:06:51,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 673 transitions. [2020-09-25 12:06:51,175 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 673 transitions. Word has length 151 [2020-09-25 12:06:51,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:06:51,175 INFO L479 AbstractCegarLoop]: Abstraction has 579 states and 673 transitions. [2020-09-25 12:06:51,176 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 12:06:51,176 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 673 transitions. [2020-09-25 12:06:51,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 12:06:51,179 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:06:51,179 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 12:06:51,180 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 12:06:51,180 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:06:51,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:06:51,180 INFO L82 PathProgramCache]: Analyzing trace with hash -68972720, now seen corresponding path program 1 times [2020-09-25 12:06:51,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:06:51,181 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1443675624] [2020-09-25 12:06:51,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:06:51,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:51,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:51,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:51,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:56,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:56,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-25 12:06:56,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 12:06:56,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-25 12:06:56,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:56,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:56,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 12:06:56,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 12:06:56,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-25 12:06:56,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:56,786 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 12:06:56,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:06:56,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:56,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:57,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:57,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 12:06:57,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:57,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 280 [2020-09-25 12:06:57,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:57,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:57,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:57,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:57,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 12:06:57,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:57,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 12:06:57,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:57,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:57,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:57,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:06:57,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:57,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:06:57,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:57,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:57,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:57,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:57,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:06:57,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:57,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 12:06:57,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:57,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:57,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:57,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:06:57,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:57,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:06:57,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:57,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:57,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:57,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:57,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:06:57,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:57,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 12:06:57,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:57,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:57,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:57,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:06:57,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:57,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 12:06:57,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:57,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:57,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:57,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:57,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:06:57,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 12:06:57,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 12:06:57,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:57,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:57,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:57,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:06:57,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:57,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:06:57,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:57,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:57,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:57,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:57,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:06:57,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:57,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 12:06:57,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:57,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:57,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:57,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:06:57,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:57,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:06:57,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:57,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:57,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:06:57,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 12:06:57,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:06:57,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:57,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 12:06:57,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:57,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:57,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:57,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 12:06:57,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:57,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:06:57,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:57,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:57,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:06:57,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 12:06:57,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:06:57,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:57,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:06:57,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:57,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:57,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:57,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:06:57,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:57,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:06:57,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:57,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:57,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:06:57,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:57,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:06:57,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:57,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 12:06:57,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:57,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:57,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:57,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:06:57,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:57,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:06:57,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:57,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:57,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:06:57,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:06:57,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:06:57,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:57,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 12:06:57,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:57,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:57,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:57,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:06:57,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:57,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:06:57,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:57,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:57,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:06:57,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:06:57,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:06:57,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:57,376 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 12:06:57,377 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1443675624] [2020-09-25 12:06:57,377 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:06:57,377 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 12:06:57,378 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665806809] [2020-09-25 12:06:57,379 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 12:06:57,380 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:06:57,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 12:06:57,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 12:06:57,381 INFO L87 Difference]: Start difference. First operand 579 states and 673 transitions. Second operand 6 states. [2020-09-25 12:06:58,007 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 12:06:58,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:06:58,745 INFO L93 Difference]: Finished difference Result 799 states and 976 transitions. [2020-09-25 12:06:58,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 12:06:58,746 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 156 [2020-09-25 12:06:58,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:06:58,748 INFO L225 Difference]: With dead ends: 799 [2020-09-25 12:06:58,748 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 12:06:58,753 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 12:06:58,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 12:06:58,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 12:06:58,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 12:06:58,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 12:06:58,754 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 156 [2020-09-25 12:06:58,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:06:58,754 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 12:06:58,754 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 12:06:58,755 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 12:06:58,755 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 12:06:58,755 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 12:06:58,757 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 12:06:58,952 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:06:59,124 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:06:59,295 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:06:59,428 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 10 [2020-09-25 12:06:59,592 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:06:59,756 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:06:59,925 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:00,051 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 10 [2020-09-25 12:07:00,224 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:00,339 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 10 [2020-09-25 12:07:00,507 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:00,667 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 10 [2020-09-25 12:07:01,002 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-25 12:07:01,329 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-25 12:07:01,655 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-25 12:07:01,819 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 12:07:01,986 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:02,139 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:02,298 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:02,454 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:02,617 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:02,772 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:02,929 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:03,083 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:03,235 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:03,394 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:03,551 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:03,709 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:03,863 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:04,021 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:04,180 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:04,334 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:04,493 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:04,824 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 12:07:05,155 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 12:07:05,401 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 12:07:05,645 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 12:07:05,981 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 12:07:06,140 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:06,399 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:06,556 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:06,713 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:06,871 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:07,024 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:07,182 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:07,337 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:07,683 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 12:07:07,929 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 12:07:08,270 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 12:07:08,515 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 12:07:08,844 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 12:07:09,090 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 12:07:09,334 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 12:07:09,667 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 12:07:09,997 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 12:07:10,108 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 10 [2020-09-25 12:07:10,267 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:10,425 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:10,754 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 12:07:11,087 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 12:07:11,333 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 12:07:11,577 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 12:07:11,911 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 12:07:12,070 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:12,230 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:12,388 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:12,542 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:12,696 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:12,856 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:13,014 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:13,171 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:13,343 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:13,502 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:13,662 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:13,820 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:13,925 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 10 [2020-09-25 12:07:14,112 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:14,269 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:14,424 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:14,577 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:14,735 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:14,894 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:15,051 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:15,209 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:15,362 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:15,514 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:15,671 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:15,993 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-25 12:07:16,148 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:16,476 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-25 12:07:16,628 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:16,946 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-25 12:07:17,099 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:17,252 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:17,575 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-25 12:07:17,894 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-25 12:07:18,319 WARN L193 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 13 [2020-09-25 12:07:18,543 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 24 [2020-09-25 12:07:18,733 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 1 [2020-09-25 12:07:19,005 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 24 [2020-09-25 12:07:19,258 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 24 [2020-09-25 12:07:19,507 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 14 [2020-09-25 12:07:19,785 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 12:07:20,008 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 1 [2020-09-25 12:07:20,460 WARN L193 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 16 [2020-09-25 12:07:20,894 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 14 [2020-09-25 12:07:21,348 WARN L193 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 16