/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=1.0 --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_product07.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 08:40:39,500 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:40:39,503 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:40:39,530 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:40:39,531 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:40:39,532 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:40:39,533 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:40:39,536 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:40:39,537 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:40:39,539 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:40:39,540 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:40:39,541 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:40:39,541 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:40:39,543 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:40:39,544 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:40:39,545 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:40:39,546 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:40:39,547 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:40:39,549 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:40:39,551 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:40:39,553 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:40:39,555 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:40:39,556 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:40:39,557 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:40:39,560 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:40:39,560 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:40:39,561 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:40:39,562 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:40:39,562 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:40:39,564 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:40:39,564 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:40:39,565 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:40:39,566 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:40:39,567 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:40:39,568 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:40:39,569 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:40:39,570 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:40:39,570 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:40:39,570 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:40:39,571 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:40:39,572 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:40:39,573 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 08:40:39,612 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:40:39,612 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:40:39,617 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:40:39,618 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:40:39,618 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:40:39,619 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:40:39,619 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 08:40:39,619 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:40:39,619 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 08:40:39,619 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:40:39,620 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:40:39,620 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:40:39,620 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:40:39,620 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 08:40:39,621 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:40:39,622 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:40:39,622 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:40:39,622 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:40:39,623 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:40:39,623 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:40:39,623 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:40:39,623 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:40:39,624 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:40:39,624 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:40:39,624 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:40:39,624 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:40:39,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:40:39,625 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:40:39,625 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:40:39,625 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=1.0;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=1.0;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=1.0;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=1.0;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=1.0;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=1.0;log-additional-information=true; [2020-09-25 08:40:40,148 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:40:40,173 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:40:40,179 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:40:40,182 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:40:40,182 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:40:40,184 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product07.cil.c [2020-09-25 08:40:40,283 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/440fae983/f48a733152c54310ac6e92164b7c11a9/FLAG1c1db492b [2020-09-25 08:40:40,947 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:40:40,948 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product07.cil.c [2020-09-25 08:40:40,963 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/440fae983/f48a733152c54310ac6e92164b7c11a9/FLAG1c1db492b [2020-09-25 08:40:41,222 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/440fae983/f48a733152c54310ac6e92164b7c11a9 [2020-09-25 08:40:41,239 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:40:41,246 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:40:41,249 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:40:41,249 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:40:41,254 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:40:41,256 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:40:41" (1/1) ... [2020-09-25 08:40:41,261 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75e6ef35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:40:41, skipping insertion in model container [2020-09-25 08:40:41,261 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:40:41" (1/1) ... [2020-09-25 08:40:41,271 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:40:41,347 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:40:41,863 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:40:41,886 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:40:41,962 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:40:41,998 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:40:41,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:40:41 WrapperNode [2020-09-25 08:40:41,998 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:40:41,999 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:40:41,999 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:40:42,000 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:40:42,018 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:40:41" (1/1) ... [2020-09-25 08:40:42,019 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:40:41" (1/1) ... [2020-09-25 08:40:42,042 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:40:41" (1/1) ... [2020-09-25 08:40:42,043 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:40:41" (1/1) ... [2020-09-25 08:40:42,081 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:40:41" (1/1) ... [2020-09-25 08:40:42,102 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:40:41" (1/1) ... [2020-09-25 08:40:42,110 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:40:41" (1/1) ... [2020-09-25 08:40:42,119 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:40:42,120 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:40:42,120 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:40:42,120 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:40:42,122 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:40:41" (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 08:40:42,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:40:42,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:40:42,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 08:40:42,215 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 08:40:42,215 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 08:40:42,215 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 08:40:42,216 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 08:40:42,216 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 08:40:42,216 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 08:40:42,216 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 08:40:42,216 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 08:40:42,217 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 08:40:42,217 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:40:42,217 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 08:40:42,217 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 08:40:42,217 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 08:40:42,218 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 08:40:42,218 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 08:40:42,218 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 08:40:42,218 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 08:40:42,219 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 08:40:42,219 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 08:40:42,219 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 08:40:42,219 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 08:40:42,219 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 08:40:42,219 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 08:40:42,220 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 08:40:42,220 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 08:40:42,220 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 08:40:42,220 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 08:40:42,220 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 08:40:42,220 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 08:40:42,220 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 08:40:42,221 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 08:40:42,221 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 08:40:42,221 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 08:40:42,221 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:40:42,221 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 08:40:42,222 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 08:40:42,222 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 08:40:42,222 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 08:40:42,222 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 08:40:42,222 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 08:40:42,222 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 08:40:42,222 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 08:40:42,223 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 08:40:42,223 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 08:40:42,223 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 08:40:42,223 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 08:40:42,223 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 08:40:42,223 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 08:40:42,224 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 08:40:42,224 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 08:40:42,224 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:40:42,224 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 08:40:42,224 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 08:40:42,224 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 08:40:42,225 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 08:40:42,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 08:40:42,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 08:40:42,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 08:40:42,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 08:40:42,225 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 08:40:42,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 08:40:42,226 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 08:40:42,226 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 08:40:42,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 08:40:42,226 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 08:40:42,226 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 08:40:42,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 08:40:42,227 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 08:40:42,227 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 08:40:42,227 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 08:40:42,227 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 08:40:42,227 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 08:40:42,227 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 08:40:42,228 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 08:40:42,228 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 08:40:42,228 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 08:40:42,228 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 08:40:42,228 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 08:40:42,228 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 08:40:42,229 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 08:40:42,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:40:42,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 08:40:42,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:40:43,456 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:40:43,457 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 08:40:43,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:40:43 BoogieIcfgContainer [2020-09-25 08:40:43,464 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:40:43,465 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:40:43,467 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:40:43,472 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:40:43,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:40:41" (1/3) ... [2020-09-25 08:40:43,473 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c0a4b41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:40:43, skipping insertion in model container [2020-09-25 08:40:43,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:40:41" (2/3) ... [2020-09-25 08:40:43,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c0a4b41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:40:43, skipping insertion in model container [2020-09-25 08:40:43,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:40:43" (3/3) ... [2020-09-25 08:40:43,479 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product07.cil.c [2020-09-25 08:40:43,500 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:40:43,519 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 08:40:43,547 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 08:40:43,582 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:40:43,582 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:40:43,583 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:40:43,583 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:40:43,583 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:40:43,583 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:40:43,583 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:40:43,584 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:40:43,619 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states. [2020-09-25 08:40:43,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 08:40:43,639 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:40:43,641 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 08:40:43,641 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:40:43,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:40:43,650 INFO L82 PathProgramCache]: Analyzing trace with hash 957582246, now seen corresponding path program 1 times [2020-09-25 08:40:43,662 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:40:43,663 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1247759263] [2020-09-25 08:40:43,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:40:44,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:44,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:44,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:45,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:49,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:49,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 08:40:49,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:40:49,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-09-25 08:40:49,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:49,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:49,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:49,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 08:40:49,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:49,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 08:40:49,565 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:40:49,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:40:49,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:49,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:49,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:49,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:40:49,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:49,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-25 08:40:49,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:49,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:49,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:49,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:49,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:49,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:49,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:40:49,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:49,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:49,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:49,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:40:49,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:49,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:40:49,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:49,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:49,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:49,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:49,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:49,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:49,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:40:49,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:49,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:49,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:49,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:40:49,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:49,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:40:49,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:49,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:49,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:49,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:49,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:49,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:49,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:40:49,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:49,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:49,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:49,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:40:49,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:49,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:40:49,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:49,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:49,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:49,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:49,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:49,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:49,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:40:49,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:49,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:49,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:49,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:40:49,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:49,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:40:49,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:49,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:49,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:49,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:49,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:49,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:40:49,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 08:40:49,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:49,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:49,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:49,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:40:49,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:49,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:40:49,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:49,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:49,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:49,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:40:49,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:49,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:49,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 08:40:49,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:49,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:49,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:49,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:40:49,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:49,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:40:49,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:49,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:49,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:49,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:40:49,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:49,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:49,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 08:40:49,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:49,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:49,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:49,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:40:49,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:49,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:40:49,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:49,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:49,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:49,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:40:49,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:49,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:49,869 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 08:40:49,870 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1247759263] [2020-09-25 08:40:49,872 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:40:49,872 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 08:40:49,873 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495169638] [2020-09-25 08:40:49,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 08:40:49,883 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:40:49,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 08:40:49,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:40:49,908 INFO L87 Difference]: Start difference. First operand 281 states. Second operand 3 states. [2020-09-25 08:40:51,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:40:51,204 INFO L93 Difference]: Finished difference Result 427 states and 514 transitions. [2020-09-25 08:40:51,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 08:40:51,206 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-25 08:40:51,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:40:51,231 INFO L225 Difference]: With dead ends: 427 [2020-09-25 08:40:51,232 INFO L226 Difference]: Without dead ends: 271 [2020-09-25 08:40:51,238 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:40:51,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-09-25 08:40:51,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 230. [2020-09-25 08:40:51,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-09-25 08:40:51,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 250 transitions. [2020-09-25 08:40:51,339 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 250 transitions. Word has length 153 [2020-09-25 08:40:51,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:40:51,340 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 250 transitions. [2020-09-25 08:40:51,340 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 08:40:51,340 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 250 transitions. [2020-09-25 08:40:51,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 08:40:51,346 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:40:51,346 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 08:40:51,346 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:40:51,347 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:40:51,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:40:51,347 INFO L82 PathProgramCache]: Analyzing trace with hash -1482403721, now seen corresponding path program 1 times [2020-09-25 08:40:51,347 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:40:51,348 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1128411764] [2020-09-25 08:40:51,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:40:51,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:51,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:51,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:53,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:56,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:56,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 08:40:56,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:40:56,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-09-25 08:40:56,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:56,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:56,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:40:56,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 08:40:56,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 08:40:56,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:56,778 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:40:56,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:40:56,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:56,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:56,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:56,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:40:56,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:56,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-25 08:40:56,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:56,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:56,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:56,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:56,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:56,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:56,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:40:56,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:56,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:56,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:56,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:40:56,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:56,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:40:56,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:56,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:56,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:56,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:56,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:56,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:56,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:40:56,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:56,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:56,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:56,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:40:56,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:56,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:40:56,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:56,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:56,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:56,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:56,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:56,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:56,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:40:56,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:56,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:56,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:56,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:40:56,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:56,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:40:56,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:56,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:56,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:56,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:56,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:56,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:56,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:40:56,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:56,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:56,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:56,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:40:56,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:56,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:40:56,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:56,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:56,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:56,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:56,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:56,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:56,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 08:40:56,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:56,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:56,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:56,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:40:56,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:56,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:40:56,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:56,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:56,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:56,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:40:56,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:56,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:56,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 08:40:56,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:56,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:56,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:56,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:40:56,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:56,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:40:56,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:56,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:56,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:56,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:40:56,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:56,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:57,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 08:40:57,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:57,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:57,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:57,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:40:57,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:57,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:40:57,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:57,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:57,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:57,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:40:57,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:57,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:57,036 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 08:40:57,036 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1128411764] [2020-09-25 08:40:57,037 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:40:57,037 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 08:40:57,044 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106608453] [2020-09-25 08:40:57,049 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 08:40:57,050 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:40:57,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 08:40:57,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 08:40:57,051 INFO L87 Difference]: Start difference. First operand 230 states and 250 transitions. Second operand 4 states. [2020-09-25 08:40:57,783 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:40:58,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:40:58,659 INFO L93 Difference]: Finished difference Result 338 states and 381 transitions. [2020-09-25 08:40:58,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 08:40:58,660 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 08:40:58,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:40:58,665 INFO L225 Difference]: With dead ends: 338 [2020-09-25 08:40:58,666 INFO L226 Difference]: Without dead ends: 254 [2020-09-25 08:40:58,670 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:40:58,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-09-25 08:40:58,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 220. [2020-09-25 08:40:58,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-09-25 08:40:58,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 237 transitions. [2020-09-25 08:40:58,743 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 237 transitions. Word has length 154 [2020-09-25 08:40:58,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:40:58,745 INFO L479 AbstractCegarLoop]: Abstraction has 220 states and 237 transitions. [2020-09-25 08:40:58,745 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 08:40:58,746 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 237 transitions. [2020-09-25 08:40:58,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-25 08:40:58,758 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:40:58,758 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] [2020-09-25 08:40:58,758 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 08:40:58,758 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:40:58,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:40:58,759 INFO L82 PathProgramCache]: Analyzing trace with hash -1724777335, now seen corresponding path program 1 times [2020-09-25 08:40:58,759 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:40:58,760 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [641163961] [2020-09-25 08:40:58,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:40:58,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:58,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:59,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:03,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:03,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 08:41:03,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:41:03,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4230 [2020-09-25 08:41:03,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:03,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:03,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 08:41:03,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 08:41:03,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-25 08:41:03,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:03,498 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:41:03,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:41:03,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:03,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:03,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:03,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:41:03,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:03,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223 [2020-09-25 08:41:03,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:03,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:03,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:41:03,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:41:03,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 08:41:03,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:41:03,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:41:03,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:03,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:03,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:03,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:41:03,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:03,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:41:03,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:03,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:03,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:41:03,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:41:03,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:41:03,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:03,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:41:03,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:03,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:03,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:03,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:41:03,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:03,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:41:03,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:03,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:03,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:41:03,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:41:03,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:41:03,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:03,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:41:03,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:03,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:03,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:03,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:41:03,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:03,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:41:03,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:03,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:03,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:41:03,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:41:03,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:41:03,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:03,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:41:03,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:03,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:03,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:03,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:41:03,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:03,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:41:03,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:03,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:03,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:41:03,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:41:03,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:41:03,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:41:03,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 08:41:03,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:03,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:03,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:03,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:41:03,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:03,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:41:03,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:03,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:03,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:41:03,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:41:03,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:41:03,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:41:03,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 08:41:03,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:03,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:03,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:03,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:41:03,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:03,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:41:03,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:03,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:03,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:41:03,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:41:03,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:41:03,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:41:03,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-25 08:41:03,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:03,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:03,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:03,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:41:03,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:03,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:41:03,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:03,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:03,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:41:03,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:41:03,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:41:03,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:41:03,907 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 08:41:03,908 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [641163961] [2020-09-25 08:41:03,908 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:41:03,908 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 08:41:03,909 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291519260] [2020-09-25 08:41:03,909 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 08:41:03,910 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:41:03,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 08:41:03,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 08:41:03,910 INFO L87 Difference]: Start difference. First operand 220 states and 237 transitions. Second operand 8 states. [2020-09-25 08:41:04,482 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 08:41:06,210 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:41:06,550 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:41:06,888 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:41:07,265 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 08:41:07,574 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:41:07,904 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:41:08,221 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:41:08,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:41:08,710 INFO L93 Difference]: Finished difference Result 465 states and 542 transitions. [2020-09-25 08:41:08,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 08:41:08,711 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 163 [2020-09-25 08:41:08,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:41:08,717 INFO L225 Difference]: With dead ends: 465 [2020-09-25 08:41:08,717 INFO L226 Difference]: Without dead ends: 355 [2020-09-25 08:41:08,719 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 08:41:08,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2020-09-25 08:41:08,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 322. [2020-09-25 08:41:08,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 322 states. [2020-09-25 08:41:08,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 360 transitions. [2020-09-25 08:41:08,793 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 360 transitions. Word has length 163 [2020-09-25 08:41:08,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:41:08,794 INFO L479 AbstractCegarLoop]: Abstraction has 322 states and 360 transitions. [2020-09-25 08:41:08,794 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 08:41:08,795 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 360 transitions. [2020-09-25 08:41:08,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-09-25 08:41:08,798 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:41:08,799 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] [2020-09-25 08:41:08,799 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 08:41:08,799 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:41:08,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:41:08,800 INFO L82 PathProgramCache]: Analyzing trace with hash -566413449, now seen corresponding path program 1 times [2020-09-25 08:41:08,800 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:41:08,800 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1237498937] [2020-09-25 08:41:08,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:41:08,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:08,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:09,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:09,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-25 08:41:09,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:09,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1080 [2020-09-25 08:41:09,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:09,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:09,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:41:09,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 08:41:09,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 08:41:09,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:10,248 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:41:10,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:41:10,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:10,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:10,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:10,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:41:10,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:10,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-09-25 08:41:10,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:10,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:10,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:41:10,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:41:10,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 08:41:10,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:10,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:41:10,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:10,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:10,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:10,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:41:10,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:10,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:41:10,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:10,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:10,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:41:10,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:41:10,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:41:10,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:41:10,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:41:10,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:10,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:10,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:10,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:41:10,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:10,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:41:10,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:10,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:10,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:41:10,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:41:10,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:41:10,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:41:10,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:41:10,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:10,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:10,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:10,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:41:10,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:10,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:41:10,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:10,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:10,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:41:10,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:41:10,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:41:10,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:41:10,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:41:10,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:10,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:10,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:10,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:41:10,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:10,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:41:10,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:10,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:10,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:41:10,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:41:10,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:41:10,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:10,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 08:41:10,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:10,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:10,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:10,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:41:10,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:10,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:41:10,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:10,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:10,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:41:10,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:41:10,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:41:10,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:10,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 08:41:10,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:10,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:10,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:10,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:41:10,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:10,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:41:10,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:10,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:10,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:41:10,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:41:10,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:41:10,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:10,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-09-25 08:41:10,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:10,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:10,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:10,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:41:10,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:10,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:41:10,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:10,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:10,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:41:10,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:41:10,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:41:10,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:10,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-25 08:41:10,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:10,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:10,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:10,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:41:10,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:10,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:41:10,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:10,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:10,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:41:10,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:41:10,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:41:10,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:41:10,674 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 08:41:10,675 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1237498937] [2020-09-25 08:41:10,675 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:41:10,675 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 08:41:10,676 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847756829] [2020-09-25 08:41:10,676 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 08:41:10,677 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:41:10,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 08:41:10,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 08:41:10,677 INFO L87 Difference]: Start difference. First operand 322 states and 360 transitions. Second operand 6 states. [2020-09-25 08:41:11,214 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 08:41:11,955 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:41:13,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:41:13,792 INFO L93 Difference]: Finished difference Result 945 states and 1119 transitions. [2020-09-25 08:41:13,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 08:41:13,793 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 168 [2020-09-25 08:41:13,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:41:13,808 INFO L225 Difference]: With dead ends: 945 [2020-09-25 08:41:13,808 INFO L226 Difference]: Without dead ends: 733 [2020-09-25 08:41:13,813 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-09-25 08:41:13,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2020-09-25 08:41:13,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 675. [2020-09-25 08:41:13,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 675 states. [2020-09-25 08:41:13,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 779 transitions. [2020-09-25 08:41:13,973 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 779 transitions. Word has length 168 [2020-09-25 08:41:13,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:41:13,973 INFO L479 AbstractCegarLoop]: Abstraction has 675 states and 779 transitions. [2020-09-25 08:41:13,973 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 08:41:13,974 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 779 transitions. [2020-09-25 08:41:13,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-09-25 08:41:13,979 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:41:13,979 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] [2020-09-25 08:41:13,979 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 08:41:13,980 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:41:13,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:41:13,980 INFO L82 PathProgramCache]: Analyzing trace with hash -1861287888, now seen corresponding path program 1 times [2020-09-25 08:41:13,981 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:41:13,981 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [629439678] [2020-09-25 08:41:13,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:41:14,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 08:41:14,052 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 08:41:14,053 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 08:41:14,059 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 08:41:14,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 08:41:14 BoogieIcfgContainer [2020-09-25 08:41:14,097 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 08:41:14,099 INFO L168 Benchmark]: Toolchain (without parser) took 32858.30 ms. Allocated memory was 138.4 MB in the beginning and 678.4 MB in the end (delta: 540.0 MB). Free memory was 100.5 MB in the beginning and 508.8 MB in the end (delta: -408.2 MB). Peak memory consumption was 131.8 MB. Max. memory is 7.1 GB. [2020-09-25 08:41:14,101 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 08:41:14,103 INFO L168 Benchmark]: CACSL2BoogieTranslator took 750.34 ms. Allocated memory was 138.4 MB in the beginning and 200.3 MB in the end (delta: 61.9 MB). Free memory was 99.9 MB in the beginning and 168.6 MB in the end (delta: -68.8 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2020-09-25 08:41:14,108 INFO L168 Benchmark]: Boogie Preprocessor took 120.05 ms. Allocated memory is still 200.3 MB. Free memory was 168.6 MB in the beginning and 164.5 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-09-25 08:41:14,109 INFO L168 Benchmark]: RCFGBuilder took 1344.19 ms. Allocated memory was 200.3 MB in the beginning and 231.2 MB in the end (delta: 30.9 MB). Free memory was 164.5 MB in the beginning and 177.2 MB in the end (delta: -12.7 MB). Peak memory consumption was 86.2 MB. Max. memory is 7.1 GB. [2020-09-25 08:41:14,110 INFO L168 Benchmark]: TraceAbstraction took 30631.85 ms. Allocated memory was 231.2 MB in the beginning and 678.4 MB in the end (delta: 447.2 MB). Free memory was 177.2 MB in the beginning and 508.8 MB in the end (delta: -331.6 MB). Peak memory consumption was 115.6 MB. Max. memory is 7.1 GB. [2020-09-25 08:41:14,122 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 750.34 ms. Allocated memory was 138.4 MB in the beginning and 200.3 MB in the end (delta: 61.9 MB). Free memory was 99.9 MB in the beginning and 168.6 MB in the end (delta: -68.8 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 120.05 ms. Allocated memory is still 200.3 MB. Free memory was 168.6 MB in the beginning and 164.5 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1344.19 ms. Allocated memory was 200.3 MB in the beginning and 231.2 MB in the end (delta: 30.9 MB). Free memory was 164.5 MB in the beginning and 177.2 MB in the end (delta: -12.7 MB). Peak memory consumption was 86.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 30631.85 ms. Allocated memory was 231.2 MB in the beginning and 678.4 MB in the end (delta: 447.2 MB). Free memory was 177.2 MB in the beginning and 508.8 MB in the end (delta: -331.6 MB). Peak memory consumption was 115.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L87] int cleanupTimeShifts = 4; [L357] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L596] int pumpRunning = 0; [L597] int systemActive = 1; [L811] int waterLevel = 1; [L812] int methaneLevelCritical = 0; [L165] int retValue_acc ; [L166] int tmp ; [L170] FCALL select_helpers() [L171] FCALL select_features() [L172] CALL, EXPR valid_product() [L78] int retValue_acc ; [L81] retValue_acc = 1 [L82] return (retValue_acc); [L172] RET, EXPR valid_product() [L172] tmp = valid_product() [L174] COND TRUE \read(tmp) [L176] FCALL setup() [L177] CALL runTest() [L159] CALL test() [L745] int splverifierCounter ; [L746] int tmp ; [L747] int tmp___0 ; [L748] int tmp___1 ; [L749] int tmp___2 ; [L752] splverifierCounter = 0 [L754] COND TRUE 1 [L756] COND TRUE splverifierCounter < 4 [L762] tmp = __VERIFIER_nondet_int() [L764] COND TRUE \read(tmp) [L766] CALL waterRise() [L829] COND TRUE waterLevel < 2 [L830] waterLevel = waterLevel + 1 [L766] RET waterRise() [L772] tmp___0 = __VERIFIER_nondet_int() [L774] COND FALSE !(\read(tmp___0)) [L782] tmp___2 = __VERIFIER_nondet_int() [L784] COND TRUE \read(tmp___2) [L799] CALL timeShift() [L603] COND FALSE !(\read(pumpRunning)) [L610] COND TRUE \read(systemActive) [L612] CALL processEnvironment() [L632] int tmp ; [L635] COND FALSE !(\read(pumpRunning)) [L650] FCALL processEnvironment__wrappee__base() [L612] RET processEnvironment() [L618] CALL __utac_acc__Specification3_spec__1() [L558] int tmp ; [L559] int tmp___0 ; [L560] int tmp___1 ; [L564] CALL, EXPR isMethaneLevelCritical() [L850] int retValue_acc ; [L853] retValue_acc = methaneLevelCritical [L854] return (retValue_acc); [L564] RET, EXPR isMethaneLevelCritical() [L564] tmp = isMethaneLevelCritical() [L566] COND FALSE !(\read(tmp)) [L570] CALL, EXPR getWaterLevel() [L882] int retValue_acc ; [L885] retValue_acc = waterLevel [L886] return (retValue_acc); [L570] RET, EXPR getWaterLevel() [L570] tmp___0 = getWaterLevel() [L572] COND TRUE tmp___0 == 2 [L574] CALL, EXPR isPumpRunning() [L684] int retValue_acc ; [L687] retValue_acc = pumpRunning [L688] return (retValue_acc); [L574] RET, EXPR isPumpRunning() [L574] tmp___1 = isPumpRunning() [L576] COND FALSE !(\read(tmp___1)) [L580] CALL __automaton_fail() [L44] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 596 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 30.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 10.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 889 SDtfs, 1024 SDslu, 941 SDs, 0 SdLazy, 1968 SolverSat, 354 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 104 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 4.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=675occurred 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: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 166 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 18.2s InterpolantComputationTime, 814 NumberOfCodeBlocks, 814 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 634 ConstructedInterpolants, 0 QuantifiedInterpolants, 255464 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...