/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product57.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 10:51:47,487 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 10:51:47,492 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 10:51:47,540 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 10:51:47,541 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 10:51:47,542 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 10:51:47,543 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 10:51:47,545 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 10:51:47,547 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 10:51:47,548 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 10:51:47,549 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 10:51:47,550 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 10:51:47,551 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 10:51:47,552 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 10:51:47,553 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 10:51:47,554 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 10:51:47,555 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 10:51:47,556 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 10:51:47,558 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 10:51:47,561 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 10:51:47,562 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 10:51:47,564 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 10:51:47,565 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 10:51:47,566 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 10:51:47,569 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 10:51:47,569 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 10:51:47,570 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 10:51:47,571 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 10:51:47,571 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 10:51:47,572 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 10:51:47,573 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 10:51:47,573 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 10:51:47,574 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 10:51:47,575 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 10:51:47,576 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 10:51:47,577 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 10:51:47,577 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 10:51:47,578 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 10:51:47,578 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 10:51:47,579 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 10:51:47,580 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 10:51:47,581 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 10:51:47,608 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 10:51:47,608 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 10:51:47,610 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 10:51:47,610 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 10:51:47,610 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 10:51:47,610 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 10:51:47,611 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 10:51:47,611 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 10:51:47,611 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 10:51:47,611 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 10:51:47,611 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 10:51:47,612 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 10:51:47,612 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 10:51:47,612 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 10:51:47,612 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 10:51:47,612 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 10:51:47,613 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 10:51:47,613 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 10:51:47,613 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 10:51:47,613 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 10:51:47,613 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 10:51:47,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 10:51:47,614 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 10:51:47,614 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 10:51:47,614 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 10:51:47,614 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 10:51:47,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 10:51:47,615 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 10:51:47,615 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 10:51:47,615 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; [2020-09-25 10:51:48,119 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 10:51:48,138 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 10:51:48,143 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 10:51:48,145 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 10:51:48,146 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 10:51:48,147 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product57.cil.c [2020-09-25 10:51:48,232 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c13ee7037/41d89cd13b0648ffaf05dd34754c5ed2/FLAG52164d157 [2020-09-25 10:51:48,856 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 10:51:48,857 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product57.cil.c [2020-09-25 10:51:48,874 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c13ee7037/41d89cd13b0648ffaf05dd34754c5ed2/FLAG52164d157 [2020-09-25 10:51:49,109 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c13ee7037/41d89cd13b0648ffaf05dd34754c5ed2 [2020-09-25 10:51:49,125 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 10:51:49,132 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 10:51:49,134 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 10:51:49,134 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 10:51:49,138 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 10:51:49,139 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:51:49" (1/1) ... [2020-09-25 10:51:49,144 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78532141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:51:49, skipping insertion in model container [2020-09-25 10:51:49,144 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:51:49" (1/1) ... [2020-09-25 10:51:49,154 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 10:51:49,220 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 10:51:49,818 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:51:49,833 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 10:51:49,906 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:51:49,945 INFO L208 MainTranslator]: Completed translation [2020-09-25 10:51:49,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:51:49 WrapperNode [2020-09-25 10:51:49,946 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 10:51:49,947 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 10:51:49,947 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 10:51:49,947 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 10:51:49,965 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:51:49" (1/1) ... [2020-09-25 10:51:49,965 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:51:49" (1/1) ... [2020-09-25 10:51:49,986 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:51:49" (1/1) ... [2020-09-25 10:51:49,987 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:51:49" (1/1) ... [2020-09-25 10:51:50,019 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:51:49" (1/1) ... [2020-09-25 10:51:50,031 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:51:49" (1/1) ... [2020-09-25 10:51:50,037 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:51:49" (1/1) ... [2020-09-25 10:51:50,045 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 10:51:50,046 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 10:51:50,046 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 10:51:50,046 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 10:51:50,047 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:51:49" (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 10:51:50,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 10:51:50,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 10:51:50,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 10:51:50,147 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 10:51:50,147 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 10:51:50,147 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 10:51:50,147 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 10:51:50,149 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 10:51:50,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 10:51:50,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 10:51:50,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 10:51:50,150 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 10:51:50,150 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 10:51:50,150 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 10:51:50,150 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 10:51:50,151 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 10:51:50,151 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 10:51:50,152 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 10:51:50,152 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 10:51:50,152 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 10:51:50,152 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 10:51:50,153 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 10:51:50,153 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 10:51:50,153 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 10:51:50,153 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 10:51:50,154 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 10:51:50,154 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 10:51:50,155 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 10:51:50,155 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 10:51:50,155 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 10:51:50,155 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 10:51:50,155 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 10:51:50,155 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 10:51:50,155 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 10:51:50,156 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 10:51:50,156 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 10:51:50,156 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 10:51:50,156 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 10:51:50,156 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 10:51:50,156 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 10:51:50,156 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 10:51:50,157 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 10:51:50,157 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 10:51:50,157 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 10:51:50,157 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 10:51:50,160 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 10:51:50,160 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 10:51:50,160 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 10:51:50,160 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 10:51:50,161 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 10:51:50,161 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 10:51:50,161 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 10:51:50,161 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 10:51:50,162 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 10:51:50,162 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 10:51:50,162 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 10:51:50,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 10:51:50,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 10:51:50,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 10:51:50,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 10:51:50,163 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 10:51:50,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 10:51:50,164 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 10:51:50,164 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 10:51:50,164 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 10:51:50,164 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 10:51:50,165 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 10:51:50,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 10:51:50,165 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 10:51:50,166 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 10:51:50,166 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 10:51:50,168 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 10:51:50,168 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 10:51:50,168 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 10:51:50,168 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 10:51:50,168 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 10:51:50,168 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 10:51:50,169 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 10:51:50,169 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 10:51:50,169 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 10:51:50,169 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 10:51:50,169 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 10:51:50,169 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 10:51:50,169 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 10:51:50,170 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 10:51:50,170 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 10:51:50,170 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 10:51:50,170 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 10:51:50,170 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 10:51:50,170 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 10:51:50,170 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 10:51:50,171 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 10:51:50,171 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 10:51:50,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 10:51:50,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 10:51:50,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 10:51:51,470 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 10:51:51,471 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 10:51:51,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:51:51 BoogieIcfgContainer [2020-09-25 10:51:51,478 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 10:51:51,480 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 10:51:51,480 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 10:51:51,484 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 10:51:51,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:51:49" (1/3) ... [2020-09-25 10:51:51,485 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4448264d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:51:51, skipping insertion in model container [2020-09-25 10:51:51,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:51:49" (2/3) ... [2020-09-25 10:51:51,485 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4448264d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:51:51, skipping insertion in model container [2020-09-25 10:51:51,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:51:51" (3/3) ... [2020-09-25 10:51:51,488 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product57.cil.c [2020-09-25 10:51:51,500 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 10:51:51,512 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 10:51:51,533 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 10:51:51,566 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 10:51:51,566 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 10:51:51,566 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 10:51:51,566 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 10:51:51,566 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 10:51:51,566 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 10:51:51,566 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 10:51:51,567 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 10:51:51,594 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states. [2020-09-25 10:51:51,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 10:51:51,616 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:51:51,617 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:51:51,618 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:51:51,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:51:51,625 INFO L82 PathProgramCache]: Analyzing trace with hash 324352486, now seen corresponding path program 1 times [2020-09-25 10:51:51,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:51:51,636 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1244657466] [2020-09-25 10:51:51,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:51:51,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:52,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:52,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:52,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:53,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:53,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:57,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:57,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 10:51:57,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 10:51:57,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-09-25 10:51:57,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:57,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:57,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 10:51:57,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 10:51:57,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 10:51:57,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 10:51:57,494 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:51:57,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:51:57,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:57,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:57,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:57,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:51:57,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:57,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 351 [2020-09-25 10:51:57,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:57,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:57,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:51:57,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:57,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 10:51:57,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:58,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:51:58,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:58,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:58,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:58,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:51:58,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:58,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:51:58,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:58,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:58,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:51:58,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:58,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:51:58,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:58,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:51:58,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:58,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:58,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:58,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:51:58,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:58,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:51:58,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:58,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:58,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:51:58,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:58,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:51:58,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:51:58,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:51:58,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:58,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:58,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:58,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:51:58,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:58,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 10:51:58,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:58,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:58,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:51:58,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:58,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:51:58,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:58,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:51:58,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:58,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:58,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:58,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:51:58,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:58,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:51:58,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:58,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:58,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:51:58,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:58,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:51:58,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:58,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 10:51:58,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:58,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:58,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:58,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:51:58,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:58,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 10:51:58,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:58,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:58,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:51:58,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:58,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:51:58,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:58,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 10:51:58,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:58,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:58,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:58,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:51:58,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:58,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:51:58,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:58,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:58,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:51:58,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:51:58,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:51:58,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:58,179 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 10:51:58,180 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1244657466] [2020-09-25 10:51:58,182 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:51:58,182 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 10:51:58,183 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952148545] [2020-09-25 10:51:58,193 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 10:51:58,193 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:51:58,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 10:51:58,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 10:51:58,219 INFO L87 Difference]: Start difference. First operand 329 states. Second operand 8 states. [2020-09-25 10:51:58,859 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:52:00,240 WARN L193 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-09-25 10:52:00,837 WARN L193 SmtUtils]: Spent 523.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-25 10:52:01,240 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:52:01,643 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:52:01,950 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:52:02,646 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:52:02,983 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:52:03,633 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 10:52:05,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:52:05,350 INFO L93 Difference]: Finished difference Result 715 states and 861 transitions. [2020-09-25 10:52:05,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 10:52:05,354 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-25 10:52:05,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:52:05,377 INFO L225 Difference]: With dead ends: 715 [2020-09-25 10:52:05,377 INFO L226 Difference]: Without dead ends: 480 [2020-09-25 10:52:05,384 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2020-09-25 10:52:05,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2020-09-25 10:52:05,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 421. [2020-09-25 10:52:05,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 421 states. [2020-09-25 10:52:05,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 465 transitions. [2020-09-25 10:52:05,534 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 465 transitions. Word has length 142 [2020-09-25 10:52:05,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:52:05,535 INFO L479 AbstractCegarLoop]: Abstraction has 421 states and 465 transitions. [2020-09-25 10:52:05,536 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 10:52:05,536 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 465 transitions. [2020-09-25 10:52:05,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-09-25 10:52:05,542 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:52:05,542 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] [2020-09-25 10:52:05,542 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 10:52:05,543 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:52:05,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:52:05,543 INFO L82 PathProgramCache]: Analyzing trace with hash 2070189511, now seen corresponding path program 1 times [2020-09-25 10:52:05,543 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:52:05,544 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [302038557] [2020-09-25 10:52:05,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:52:05,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:05,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:05,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:06,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:09,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:09,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-09-25 10:52:09,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 10:52:09,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3782 [2020-09-25 10:52:09,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:09,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:09,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 10:52:09,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 10:52:09,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-09-25 10:52:09,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:09,690 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:52:09,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:52:09,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:09,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:09,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:09,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:52:09,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:09,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 203 [2020-09-25 10:52:09,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:09,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:09,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:52:09,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:09,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 10:52:09,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:09,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:52:09,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:09,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:09,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:09,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:52:09,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:09,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:52:09,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:09,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:09,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:52:09,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:09,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:52:09,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:09,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:52:09,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:09,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:09,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:09,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:52:09,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:09,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:52:09,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:09,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:09,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:52:09,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:09,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:52:09,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:09,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:52:09,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:09,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:09,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:09,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:52:09,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:09,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:52:10,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:10,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:10,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:52:10,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:10,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:52:10,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:10,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:52:10,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:10,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:10,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:10,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:52:10,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:10,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:52:10,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:10,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:10,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:52:10,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:10,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:52:10,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:10,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 10:52:10,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:10,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:10,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:10,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:52:10,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:10,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:52:10,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:10,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:10,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:52:10,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:10,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:52:10,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:10,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 10:52:10,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:10,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:10,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:10,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:52:10,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:10,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:52:10,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:10,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:10,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:52:10,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:10,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:52:10,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:10,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 10:52:10,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:10,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:10,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:10,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:52:10,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:10,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:52:10,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:10,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:10,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:52:10,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:10,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:52:10,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:10,125 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 10:52:10,126 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [302038557] [2020-09-25 10:52:10,126 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:52:10,127 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 10:52:10,127 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341117670] [2020-09-25 10:52:10,129 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 10:52:10,130 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:52:10,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 10:52:10,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 10:52:10,131 INFO L87 Difference]: Start difference. First operand 421 states and 465 transitions. Second operand 9 states. [2020-09-25 10:52:10,660 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:52:11,798 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:52:12,116 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:52:12,425 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:52:12,777 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:52:13,075 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:52:14,346 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:52:14,723 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:52:15,124 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 10:52:15,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:52:15,830 INFO L93 Difference]: Finished difference Result 993 states and 1194 transitions. [2020-09-25 10:52:15,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 10:52:15,831 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 157 [2020-09-25 10:52:15,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:52:15,840 INFO L225 Difference]: With dead ends: 993 [2020-09-25 10:52:15,841 INFO L226 Difference]: Without dead ends: 682 [2020-09-25 10:52:15,845 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 10:52:15,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2020-09-25 10:52:15,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 595. [2020-09-25 10:52:15,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 595 states. [2020-09-25 10:52:15,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 687 transitions. [2020-09-25 10:52:15,933 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 687 transitions. Word has length 157 [2020-09-25 10:52:15,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:52:15,934 INFO L479 AbstractCegarLoop]: Abstraction has 595 states and 687 transitions. [2020-09-25 10:52:15,934 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 10:52:15,934 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 687 transitions. [2020-09-25 10:52:15,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-09-25 10:52:15,940 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:52:15,941 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:52:15,941 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 10:52:15,941 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:52:15,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:52:15,942 INFO L82 PathProgramCache]: Analyzing trace with hash 1053053690, now seen corresponding path program 1 times [2020-09-25 10:52:15,942 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:52:15,942 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1363534849] [2020-09-25 10:52:15,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:52:15,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:16,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:16,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:20,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:21,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:21,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 264 [2020-09-25 10:52:21,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 10:52:21,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-09-25 10:52:21,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:21,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:21,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 10:52:21,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 143 [2020-09-25 10:52:21,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 10:52:21,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:21,362 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:52:21,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:52:21,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:21,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:21,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:21,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:52:21,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:21,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-25 10:52:21,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:21,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:21,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:52:21,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:21,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:52:21,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:21,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:52:21,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:21,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:21,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:21,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:52:21,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:21,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:52:21,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:21,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:21,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:52:21,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:21,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:52:21,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:21,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:52:21,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:21,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:21,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:21,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:52:21,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:21,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:52:21,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:21,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:21,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:52:21,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:21,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:52:21,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:21,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:52:21,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:21,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:21,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:21,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:52:21,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:21,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:52:21,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:21,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:21,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:52:21,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:21,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:52:21,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:21,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:52:21,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:21,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:21,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:21,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:52:21,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:21,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:52:21,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:21,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:21,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:52:21,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:21,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:52:21,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 10:52:21,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 10:52:21,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:21,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:21,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:21,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:52:21,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:21,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:52:21,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:21,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:21,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:52:21,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:21,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 10:52:21,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:21,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 10:52:21,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:21,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:21,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:22,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:22,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 10:52:22,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:52:22,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 512 [2020-09-25 10:52:22,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:22,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:22,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 10:52:22,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-09-25 10:52:22,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 10:52:22,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:22,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:52:22,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:22,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:22,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:22,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:22,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 10:52:22,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:52:22,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 777 [2020-09-25 10:52:22,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:22,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:22,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 10:52:22,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:22,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 10:52:22,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:22,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:52:22,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:22,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:22,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:22,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 10:52:22,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:22,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:52:22,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:22,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:22,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:52:22,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:22,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:52:22,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:22,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:52:22,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:22,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:22,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:22,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:52:22,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:22,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:52:22,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:22,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:22,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:52:22,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:22,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:52:22,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:22,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 10:52:22,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:22,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:23,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:23,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 10:52:23,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:23,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-25 10:52:23,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:23,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:23,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 10:52:23,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:23,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 10:52:23,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:23,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 10:52:23,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:23,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:23,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:23,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 10:52:23,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:23,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 10:52:23,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:23,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:23,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 10:52:23,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:23,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 10:52:23,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:23,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 10:52:23,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:23,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:23,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:23,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:52:23,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:23,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:52:23,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:23,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:23,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:52:23,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:23,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:52:23,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:23,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 10:52:23,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:23,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:23,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:23,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 10:52:23,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:23,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:52:23,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:23,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:23,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:52:23,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:23,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 10:52:23,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:23,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-09-25 10:52:23,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:23,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:23,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:23,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:52:23,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:23,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:52:23,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:23,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:23,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:52:23,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:52:23,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:52:23,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:23,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-09-25 10:52:23,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:23,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:23,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:23,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:52:23,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:23,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:52:23,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:23,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:23,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:52:23,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:52:23,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:52:23,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:52:23,259 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 10:52:23,260 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1363534849] [2020-09-25 10:52:23,260 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:52:23,260 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 10:52:23,261 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378901297] [2020-09-25 10:52:23,262 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 10:52:23,262 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:52:23,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 10:52:23,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2020-09-25 10:52:23,263 INFO L87 Difference]: Start difference. First operand 595 states and 687 transitions. Second operand 15 states. [2020-09-25 10:52:24,085 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:52:25,240 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:52:25,632 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:52:25,983 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:52:26,452 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:52:26,786 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:52:28,445 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:52:28,764 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:52:29,081 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:52:29,410 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:52:29,739 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:52:31,558 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:52:31,883 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:52:32,217 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:52:32,529 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:52:32,855 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:52:33,458 WARN L193 SmtUtils]: Spent 560.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-09-25 10:52:34,047 WARN L193 SmtUtils]: Spent 554.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-25 10:52:34,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:52:34,523 INFO L93 Difference]: Finished difference Result 1232 states and 1497 transitions. [2020-09-25 10:52:34,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-09-25 10:52:34,523 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 217 [2020-09-25 10:52:34,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:52:34,535 INFO L225 Difference]: With dead ends: 1232 [2020-09-25 10:52:34,536 INFO L226 Difference]: Without dead ends: 724 [2020-09-25 10:52:34,540 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=319, Invalid=1241, Unknown=0, NotChecked=0, Total=1560 [2020-09-25 10:52:34,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2020-09-25 10:52:34,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 572. [2020-09-25 10:52:34,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 572 states. [2020-09-25 10:52:34,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 643 transitions. [2020-09-25 10:52:34,660 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 643 transitions. Word has length 217 [2020-09-25 10:52:34,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:52:34,662 INFO L479 AbstractCegarLoop]: Abstraction has 572 states and 643 transitions. [2020-09-25 10:52:34,662 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 10:52:34,662 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 643 transitions. [2020-09-25 10:52:34,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2020-09-25 10:52:34,669 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:52:34,671 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:52:34,671 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 10:52:34,671 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:52:34,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:52:34,672 INFO L82 PathProgramCache]: Analyzing trace with hash -144761143, now seen corresponding path program 1 times [2020-09-25 10:52:34,672 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:52:34,672 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [265148436] [2020-09-25 10:52:34,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:52:34,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:34,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:34,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:35,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:36,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking...