/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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_spec3_product44.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:24:19,466 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:24:19,471 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:24:19,513 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:24:19,514 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:24:19,522 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:24:19,524 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:24:19,528 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:24:19,532 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:24:19,536 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:24:19,537 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:24:19,538 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:24:19,538 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:24:19,539 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:24:19,540 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:24:19,541 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:24:19,542 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:24:19,543 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:24:19,545 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:24:19,547 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:24:19,548 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:24:19,549 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:24:19,550 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:24:19,551 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:24:19,553 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:24:19,554 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:24:19,554 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:24:19,555 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:24:19,555 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:24:19,556 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:24:19,556 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:24:19,557 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:24:19,558 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:24:19,559 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:24:19,560 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:24:19,560 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:24:19,561 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:24:19,561 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:24:19,561 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:24:19,562 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:24:19,563 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:24:19,564 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 06:24:19,589 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:24:19,590 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:24:19,591 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:24:19,591 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:24:19,591 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:24:19,592 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:24:19,592 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:24:19,592 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:24:19,592 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:24:19,592 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:24:19,593 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:24:19,593 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:24:19,593 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:24:19,593 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:24:19,593 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:24:19,594 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:24:19,594 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:24:19,594 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:24:19,594 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:24:19,595 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:24:19,595 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:24:19,595 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:24:19,595 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:24:19,595 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:24:19,596 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:24:19,596 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:24:19,596 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:24:19,596 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:24:19,596 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:24:19,597 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; [2020-09-25 06:24:20,089 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:24:20,116 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:24:20,121 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:24:20,123 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:24:20,125 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:24:20,126 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product44.cil.c [2020-09-25 06:24:20,219 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0a1866ac6/a519ddcffe154053a7d8697699177e77/FLAG7ae56a29e [2020-09-25 06:24:20,860 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:24:20,861 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product44.cil.c [2020-09-25 06:24:20,878 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0a1866ac6/a519ddcffe154053a7d8697699177e77/FLAG7ae56a29e [2020-09-25 06:24:21,119 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0a1866ac6/a519ddcffe154053a7d8697699177e77 [2020-09-25 06:24:21,131 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:24:21,137 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:24:21,139 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:24:21,139 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:24:21,143 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:24:21,144 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:24:21" (1/1) ... [2020-09-25 06:24:21,150 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56344ce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:24:21, skipping insertion in model container [2020-09-25 06:24:21,151 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:24:21" (1/1) ... [2020-09-25 06:24:21,160 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:24:21,239 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:24:21,744 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:24:21,760 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:24:21,885 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:24:21,924 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:24:21,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:24:21 WrapperNode [2020-09-25 06:24:21,925 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:24:21,926 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:24:21,926 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:24:21,926 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:24:21,942 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:24:21" (1/1) ... [2020-09-25 06:24:21,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:24:21" (1/1) ... [2020-09-25 06:24:21,965 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:24:21" (1/1) ... [2020-09-25 06:24:21,965 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:24:21" (1/1) ... [2020-09-25 06:24:22,000 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:24:21" (1/1) ... [2020-09-25 06:24:22,019 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:24:21" (1/1) ... [2020-09-25 06:24:22,036 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:24:21" (1/1) ... [2020-09-25 06:24:22,044 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:24:22,044 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:24:22,045 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:24:22,045 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:24:22,046 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:24:21" (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 06:24:22,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:24:22,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:24:22,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 06:24:22,138 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 06:24:22,138 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 06:24:22,139 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 06:24:22,139 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 06:24:22,140 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:24:22,140 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 06:24:22,140 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 06:24:22,141 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 06:24:22,141 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 06:24:22,141 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 06:24:22,141 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 06:24:22,141 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 06:24:22,142 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 06:24:22,143 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 06:24:22,143 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 06:24:22,143 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 06:24:22,143 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 06:24:22,143 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 06:24:22,144 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 06:24:22,144 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 06:24:22,144 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 06:24:22,144 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 06:24:22,145 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 06:24:22,145 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 06:24:22,146 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 06:24:22,146 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 06:24:22,146 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 06:24:22,146 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 06:24:22,146 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 06:24:22,146 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 06:24:22,147 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 06:24:22,147 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 06:24:22,147 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 06:24:22,147 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 06:24:22,147 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 06:24:22,147 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 06:24:22,147 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 06:24:22,148 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:24:22,148 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:24:22,148 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 06:24:22,148 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 06:24:22,148 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 06:24:22,148 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 06:24:22,149 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 06:24:22,149 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 06:24:22,149 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 06:24:22,149 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 06:24:22,149 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 06:24:22,150 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 06:24:22,150 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 06:24:22,150 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 06:24:22,150 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 06:24:22,151 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:24:22,151 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 06:24:22,151 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 06:24:22,151 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 06:24:22,151 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 06:24:22,151 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 06:24:22,152 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 06:24:22,152 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 06:24:22,152 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 06:24:22,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 06:24:22,152 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 06:24:22,153 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 06:24:22,153 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 06:24:22,153 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 06:24:22,153 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 06:24:22,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 06:24:22,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 06:24:22,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 06:24:22,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 06:24:22,156 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 06:24:22,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 06:24:22,156 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 06:24:22,156 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 06:24:22,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 06:24:22,156 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 06:24:22,156 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 06:24:22,157 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 06:24:22,157 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 06:24:22,158 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 06:24:22,158 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 06:24:22,158 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 06:24:22,158 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 06:24:22,158 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 06:24:22,158 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 06:24:22,158 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 06:24:22,159 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 06:24:22,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:24:22,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 06:24:22,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:24:23,292 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:24:23,293 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 06:24:23,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:24:23 BoogieIcfgContainer [2020-09-25 06:24:23,300 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:24:23,302 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:24:23,302 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:24:23,306 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:24:23,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:24:21" (1/3) ... [2020-09-25 06:24:23,307 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d02ea68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:24:23, skipping insertion in model container [2020-09-25 06:24:23,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:24:21" (2/3) ... [2020-09-25 06:24:23,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d02ea68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:24:23, skipping insertion in model container [2020-09-25 06:24:23,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:24:23" (3/3) ... [2020-09-25 06:24:23,310 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product44.cil.c [2020-09-25 06:24:23,322 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:24:23,333 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:24:23,356 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:24:23,390 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:24:23,391 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:24:23,391 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:24:23,391 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:24:23,391 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:24:23,391 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:24:23,391 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:24:23,392 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:24:23,421 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states. [2020-09-25 06:24:23,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 06:24:23,439 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:24:23,440 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] [2020-09-25 06:24:23,441 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:24:23,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:24:23,449 INFO L82 PathProgramCache]: Analyzing trace with hash -266008754, now seen corresponding path program 1 times [2020-09-25 06:24:23,460 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:24:23,461 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1840652035] [2020-09-25 06:24:23,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:24:23,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:23,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:24,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:25,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:28,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:28,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 06:24:28,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:24:28,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-09-25 06:24:28,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:28,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:28,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:28,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 06:24:28,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:28,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-09-25 06:24:29,568 WARN L193 SmtUtils]: Spent 493.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:24:29,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:24:29,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:29,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:29,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:29,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:24:29,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:29,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-09-25 06:24:29,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:29,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:29,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:29,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:29,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:29,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:24:29,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:24:29,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:29,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:29,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:29,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:24:29,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:29,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:24:29,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:29,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:29,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:29,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:29,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:29,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:29,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:24:29,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:29,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:29,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:29,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:24:29,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:29,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:24:29,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:29,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:29,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:29,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:29,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:29,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:29,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:24:29,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:29,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:29,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:29,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:24:29,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:29,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:24:29,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:29,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:29,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:29,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:29,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:29,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:29,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:24:29,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:29,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:29,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:29,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:24:29,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:29,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:24:29,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:29,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:29,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:29,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:29,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:29,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:24:29,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 06:24:29,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:29,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:29,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:29,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:24:29,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:29,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:24:29,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:29,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:29,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:29,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:24:29,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:29,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:29,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 06:24:29,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:29,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:29,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:29,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:24:29,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:29,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:24:29,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:29,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:29,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:29,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:24:29,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:29,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:29,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 06:24:29,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:29,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:29,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:29,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:24:29,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:29,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:24:29,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:29,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:29,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:29,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:24:29,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:29,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:24:30,028 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 06:24:30,029 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1840652035] [2020-09-25 06:24:30,032 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:24:30,033 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:24:30,034 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808305540] [2020-09-25 06:24:30,049 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:24:30,049 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:24:30,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:24:30,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:24:30,087 INFO L87 Difference]: Start difference. First operand 319 states. Second operand 3 states. [2020-09-25 06:24:31,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:24:31,578 INFO L93 Difference]: Finished difference Result 506 states and 598 transitions. [2020-09-25 06:24:31,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:24:31,580 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-25 06:24:31,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:24:31,604 INFO L225 Difference]: With dead ends: 506 [2020-09-25 06:24:31,604 INFO L226 Difference]: Without dead ends: 312 [2020-09-25 06:24:31,613 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:24:31,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2020-09-25 06:24:31,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 268. [2020-09-25 06:24:31,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2020-09-25 06:24:31,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 290 transitions. [2020-09-25 06:24:31,822 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 290 transitions. Word has length 153 [2020-09-25 06:24:31,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:24:31,832 INFO L479 AbstractCegarLoop]: Abstraction has 268 states and 290 transitions. [2020-09-25 06:24:31,833 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:24:31,833 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 290 transitions. [2020-09-25 06:24:31,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 06:24:31,845 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:24:31,845 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] [2020-09-25 06:24:31,850 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:24:31,850 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:24:31,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:24:31,851 INFO L82 PathProgramCache]: Analyzing trace with hash 579021377, now seen corresponding path program 1 times [2020-09-25 06:24:31,851 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:24:31,851 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1097360618] [2020-09-25 06:24:31,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:24:31,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:32,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:32,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:34,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:37,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:37,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 06:24:37,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:24:37,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5058 [2020-09-25 06:24:37,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:37,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:37,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:24:37,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 06:24:37,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:24:37,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:37,453 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:24:37,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:24:37,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:37,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:37,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:37,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:24:37,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:37,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-09-25 06:24:37,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:37,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:37,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:37,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:37,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:37,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:37,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:24:37,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:37,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:37,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:37,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:24:37,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:37,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:24:37,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:37,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:37,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:37,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:37,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:37,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 06:24:37,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:24:37,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:37,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:37,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:37,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:24:37,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:37,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:24:37,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:37,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:37,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:37,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:37,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:37,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:37,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:24:37,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:37,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:37,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:37,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:24:37,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:37,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:24:37,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:37,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:37,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:37,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:37,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:37,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:24:37,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:24:37,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:37,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:37,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:37,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:24:37,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:37,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:24:37,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:37,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:37,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:37,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:37,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:37,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:37,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 06:24:37,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:37,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:37,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:37,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:24:37,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:37,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:24:37,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:37,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:37,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:37,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:24:37,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:37,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:24:37,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 06:24:37,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:37,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:37,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:37,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:24:37,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:37,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:24:37,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:37,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:37,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:37,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:24:37,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:37,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:37,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 06:24:37,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:37,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:37,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:37,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:24:37,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:37,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:24:37,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:37,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:37,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:37,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:24:37,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:37,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 06:24:37,825 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 06:24:37,826 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1097360618] [2020-09-25 06:24:37,826 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:24:37,827 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:24:37,827 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968098828] [2020-09-25 06:24:37,831 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:24:37,832 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:24:37,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:24:37,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:24:37,833 INFO L87 Difference]: Start difference. First operand 268 states and 290 transitions. Second operand 4 states. [2020-09-25 06:24:38,587 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:24:39,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:24:39,640 INFO L93 Difference]: Finished difference Result 410 states and 459 transitions. [2020-09-25 06:24:39,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 06:24:39,641 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 06:24:39,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:24:39,650 INFO L225 Difference]: With dead ends: 410 [2020-09-25 06:24:39,650 INFO L226 Difference]: Without dead ends: 295 [2020-09-25 06:24:39,655 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 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 06:24:39,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2020-09-25 06:24:39,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 258. [2020-09-25 06:24:39,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2020-09-25 06:24:39,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 277 transitions. [2020-09-25 06:24:39,731 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 277 transitions. Word has length 154 [2020-09-25 06:24:39,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:24:39,733 INFO L479 AbstractCegarLoop]: Abstraction has 258 states and 277 transitions. [2020-09-25 06:24:39,733 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:24:39,733 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 277 transitions. [2020-09-25 06:24:39,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 06:24:39,738 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:24:39,739 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:24:39,739 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:24:39,739 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:24:39,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:24:39,740 INFO L82 PathProgramCache]: Analyzing trace with hash -1537433841, now seen corresponding path program 1 times [2020-09-25 06:24:39,740 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:24:39,740 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1994873421] [2020-09-25 06:24:39,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:24:39,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:39,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:40,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:42,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:42,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 06:24:42,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:24:42,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3013 [2020-09-25 06:24:42,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:42,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:42,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:24:42,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 06:24:42,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:24:42,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:43,143 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:24:43,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:24:43,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:43,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:43,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:43,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:24:43,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:43,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 06:24:43,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:43,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:43,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:43,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:43,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:43,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:43,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:24:43,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:43,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:43,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:43,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:24:43,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:43,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:24:43,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:43,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:43,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:43,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:43,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:43,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:43,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:24:43,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:43,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:43,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:43,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:24:43,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:43,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:24:43,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:43,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:43,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:43,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:43,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:43,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:43,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:24:43,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:43,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:43,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:43,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:24:43,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:43,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:24:43,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:43,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:43,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:43,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:43,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:43,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:43,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:24:43,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:43,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:43,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:43,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:24:43,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:43,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:24:43,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:43,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:43,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:43,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:43,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:43,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:43,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 06:24:43,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:43,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:43,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:43,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:24:43,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:43,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:24:43,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:43,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:43,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:24:43,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:43,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 06:24:43,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:43,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 06:24:43,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:43,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:43,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:43,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:24:43,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:43,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:24:43,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:43,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:43,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:43,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:24:43,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:43,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:43,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 06:24:43,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:43,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:43,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:43,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:24:43,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:43,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:24:43,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:43,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:43,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:43,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:24:43,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:43,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:43,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-25 06:24:43,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:43,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:43,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:43,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:24:43,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:43,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:24:43,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:43,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:43,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:43,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:24:43,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:43,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:43,374 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 06:24:43,374 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1994873421] [2020-09-25 06:24:43,374 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:24:43,375 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 06:24:43,375 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021514814] [2020-09-25 06:24:43,376 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:24:43,376 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:24:43,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:24:43,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:24:43,377 INFO L87 Difference]: Start difference. First operand 258 states and 277 transitions. Second operand 5 states. [2020-09-25 06:24:43,830 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:24:45,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:24:45,777 INFO L93 Difference]: Finished difference Result 624 states and 716 transitions. [2020-09-25 06:24:45,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 06:24:45,778 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-09-25 06:24:45,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:24:45,783 INFO L225 Difference]: With dead ends: 624 [2020-09-25 06:24:45,783 INFO L226 Difference]: Without dead ends: 476 [2020-09-25 06:24:45,785 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:24:45,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2020-09-25 06:24:45,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 390. [2020-09-25 06:24:45,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 390 states. [2020-09-25 06:24:45,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 427 transitions. [2020-09-25 06:24:45,854 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 427 transitions. Word has length 167 [2020-09-25 06:24:45,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:24:45,855 INFO L479 AbstractCegarLoop]: Abstraction has 390 states and 427 transitions. [2020-09-25 06:24:45,855 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:24:45,855 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 427 transitions. [2020-09-25 06:24:45,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-25 06:24:45,858 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:24:45,858 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:24:45,858 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:24:45,858 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:24:45,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:24:45,859 INFO L82 PathProgramCache]: Analyzing trace with hash 868861772, now seen corresponding path program 1 times [2020-09-25 06:24:45,859 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:24:45,859 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [622724725] [2020-09-25 06:24:45,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:24:45,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:45,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:47,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:47,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-25 06:24:47,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:47,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1794 [2020-09-25 06:24:47,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:47,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:47,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 06:24:47,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 06:24:47,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-09-25 06:24:47,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:48,050 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:24:48,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:24:48,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:48,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:48,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:48,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:24:48,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:48,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 228 [2020-09-25 06:24:48,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:48,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:48,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:24:48,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:48,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 06:24:48,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:48,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:24:48,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:48,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:48,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:48,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:24:48,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:48,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:24:48,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:48,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:48,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:24:48,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:48,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:24:48,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:48,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:24:48,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:48,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:48,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:48,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:24:48,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:48,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:24:48,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:48,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:48,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:24:48,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:48,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:24:48,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:48,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:24:48,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:48,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:48,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:48,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:24:48,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:48,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:24:48,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:48,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:48,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:24:48,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:48,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:24:48,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:48,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:24:48,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:48,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:48,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:48,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:24:48,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:48,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:24:48,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:48,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:48,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:24:48,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:48,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:24:48,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:48,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 06:24:48,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:48,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:48,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:48,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 06:24:48,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:48,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:24:48,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:48,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:48,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:24:48,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:48,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 06:24:48,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:48,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 06:24:48,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:48,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:48,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:48,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:24:48,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:48,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:24:48,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:48,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:48,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:24:48,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:48,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:24:48,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:48,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 06:24:48,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:48,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:48,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:48,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:24:48,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:48,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:24:48,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:48,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:48,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:24:48,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:48,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:24:48,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:48,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 06:24:48,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:48,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:48,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:48,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:24:48,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:48,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:24:48,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:48,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:48,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:48,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:24:48,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:48,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:48,531 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 06:24:48,532 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [622724725] [2020-09-25 06:24:48,533 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:24:48,533 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 06:24:48,534 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753893224] [2020-09-25 06:24:48,536 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 06:24:48,536 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:24:48,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 06:24:48,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 06:24:48,537 INFO L87 Difference]: Start difference. First operand 390 states and 427 transitions. Second operand 9 states. [2020-09-25 06:24:49,083 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:24:50,849 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:24:51,192 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:24:51,577 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:24:51,962 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:24:52,284 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:24:52,639 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:24:52,966 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:24:54,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:24:54,092 INFO L93 Difference]: Finished difference Result 1036 states and 1223 transitions. [2020-09-25 06:24:54,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 06:24:54,093 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-09-25 06:24:54,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:24:54,101 INFO L225 Difference]: With dead ends: 1036 [2020-09-25 06:24:54,102 INFO L226 Difference]: Without dead ends: 756 [2020-09-25 06:24:54,104 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-25 06:24:54,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2020-09-25 06:24:54,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 657. [2020-09-25 06:24:54,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 657 states. [2020-09-25 06:24:54,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 735 transitions. [2020-09-25 06:24:54,202 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 735 transitions. Word has length 172 [2020-09-25 06:24:54,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:24:54,203 INFO L479 AbstractCegarLoop]: Abstraction has 657 states and 735 transitions. [2020-09-25 06:24:54,203 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 06:24:54,203 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 735 transitions. [2020-09-25 06:24:54,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 06:24:54,207 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:24:54,207 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:24:54,208 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:24:54,208 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:24:54,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:24:54,208 INFO L82 PathProgramCache]: Analyzing trace with hash 1844704864, now seen corresponding path program 1 times [2020-09-25 06:24:54,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:24:54,209 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [897642280] [2020-09-25 06:24:54,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:24:54,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 06:24:54,275 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 06:24:54,276 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 06:24:54,281 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:24:54,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 06:24:54 BoogieIcfgContainer [2020-09-25 06:24:54,308 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 06:24:54,310 INFO L168 Benchmark]: Toolchain (without parser) took 33176.87 ms. Allocated memory was 145.8 MB in the beginning and 629.1 MB in the end (delta: 483.4 MB). Free memory was 100.9 MB in the beginning and 205.4 MB in the end (delta: -104.5 MB). Peak memory consumption was 378.9 MB. Max. memory is 7.1 GB. [2020-09-25 06:24:54,311 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 145.8 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 06:24:54,312 INFO L168 Benchmark]: CACSL2BoogieTranslator took 786.81 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 100.3 MB in the beginning and 170.0 MB in the end (delta: -69.8 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2020-09-25 06:24:54,313 INFO L168 Benchmark]: Boogie Preprocessor took 118.38 ms. Allocated memory is still 202.4 MB. Free memory was 170.0 MB in the beginning and 165.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-09-25 06:24:54,314 INFO L168 Benchmark]: RCFGBuilder took 1256.07 ms. Allocated memory was 202.4 MB in the beginning and 233.8 MB in the end (delta: 31.5 MB). Free memory was 165.8 MB in the beginning and 173.8 MB in the end (delta: -8.0 MB). Peak memory consumption was 85.0 MB. Max. memory is 7.1 GB. [2020-09-25 06:24:54,314 INFO L168 Benchmark]: TraceAbstraction took 31006.40 ms. Allocated memory was 233.8 MB in the beginning and 629.1 MB in the end (delta: 395.3 MB). Free memory was 173.8 MB in the beginning and 205.4 MB in the end (delta: -31.6 MB). Peak memory consumption was 363.7 MB. Max. memory is 7.1 GB. [2020-09-25 06:24:54,318 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 145.8 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 786.81 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 100.3 MB in the beginning and 170.0 MB in the end (delta: -69.8 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 118.38 ms. Allocated memory is still 202.4 MB. Free memory was 170.0 MB in the beginning and 165.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1256.07 ms. Allocated memory was 202.4 MB in the beginning and 233.8 MB in the end (delta: 31.5 MB). Free memory was 165.8 MB in the beginning and 173.8 MB in the end (delta: -8.0 MB). Peak memory consumption was 85.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 31006.40 ms. Allocated memory was 233.8 MB in the beginning and 629.1 MB in the end (delta: 395.3 MB). Free memory was 173.8 MB in the beginning and 205.4 MB in the end (delta: -31.6 MB). Peak memory consumption was 363.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 318]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L185] int waterLevel = 1; [L186] int methaneLevelCritical = 0; [L492] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L693] int pumpRunning = 0; [L694] int systemActive = 1; [L121] int retValue_acc ; [L122] int tmp ; [L126] FCALL select_helpers() [L127] FCALL select_features() [L128] CALL, EXPR valid_product() [L305] int retValue_acc ; [L308] retValue_acc = 1 [L309] return (retValue_acc); [L128] RET, EXPR valid_product() [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L132] FCALL setup() [L133] CALL runTest() [L112] CALL test() [L887] int splverifierCounter ; [L888] int tmp ; [L889] int tmp___0 ; [L890] int tmp___1 ; [L891] int tmp___2 ; [L894] splverifierCounter = 0 [L896] COND TRUE 1 [L898] COND TRUE splverifierCounter < 4 [L904] tmp = __VERIFIER_nondet_int() [L906] COND TRUE \read(tmp) [L908] CALL waterRise() [L203] COND TRUE waterLevel < 2 [L204] waterLevel = waterLevel + 1 [L908] RET waterRise() [L914] tmp___0 = __VERIFIER_nondet_int() [L916] COND FALSE !(\read(tmp___0)) [L924] tmp___2 = __VERIFIER_nondet_int() [L926] COND FALSE !(\read(tmp___2)) [L932] tmp___1 = __VERIFIER_nondet_int() [L934] COND TRUE \read(tmp___1) [L936] CALL stopSystem() [L866] COND FALSE !(\read(pumpRunning)) [L873] systemActive = 0 [L936] RET stopSystem() [L943] CALL timeShift() [L700] COND FALSE !(\read(pumpRunning)) [L707] COND FALSE !(\read(systemActive)) [L715] CALL __utac_acc__Specification3_spec__1() [L149] int tmp ; [L150] int tmp___0 ; [L151] int tmp___1 ; [L155] CALL, EXPR isMethaneLevelCritical() [L224] int retValue_acc ; [L227] retValue_acc = methaneLevelCritical [L228] return (retValue_acc); [L155] RET, EXPR isMethaneLevelCritical() [L155] tmp = isMethaneLevelCritical() [L157] COND FALSE !(\read(tmp)) [L161] CALL, EXPR getWaterLevel() [L256] int retValue_acc ; [L259] retValue_acc = waterLevel [L260] return (retValue_acc); [L161] RET, EXPR getWaterLevel() [L161] tmp___0 = getWaterLevel() [L163] COND TRUE tmp___0 == 2 [L165] CALL, EXPR isPumpRunning() [L799] int retValue_acc ; [L802] retValue_acc = pumpRunning [L803] return (retValue_acc); [L165] RET, EXPR isPumpRunning() [L165] tmp___1 = isPumpRunning() [L167] COND FALSE !(\read(tmp___1)) [L171] CALL __automaton_fail() [L318] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 631 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 30.8s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 11.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1033 SDtfs, 1252 SDslu, 873 SDs, 0 SdLazy, 2195 SolverSat, 402 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=657occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 266 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 18.0s InterpolantComputationTime, 823 NumberOfCodeBlocks, 823 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 642 ConstructedInterpolants, 0 QuantifiedInterpolants, 246314 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...