/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product01.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 10:55:32,978 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 10:55:32,982 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 10:55:33,025 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 10:55:33,025 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 10:55:33,033 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 10:55:33,035 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 10:55:33,039 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 10:55:33,042 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 10:55:33,045 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 10:55:33,046 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 10:55:33,047 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 10:55:33,047 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 10:55:33,051 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 10:55:33,053 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 10:55:33,055 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 10:55:33,056 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 10:55:33,058 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 10:55:33,059 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 10:55:33,068 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 10:55:33,070 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 10:55:33,071 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 10:55:33,072 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 10:55:33,072 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 10:55:33,086 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 10:55:33,086 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 10:55:33,086 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 10:55:33,092 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 10:55:33,092 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 10:55:33,093 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 10:55:33,093 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 10:55:33,098 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 10:55:33,098 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 10:55:33,103 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 10:55:33,104 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 10:55:33,104 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 10:55:33,106 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 10:55:33,106 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 10:55:33,106 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 10:55:33,107 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 10:55:33,108 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 10:55:33,109 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 10:55:33,157 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 10:55:33,158 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 10:55:33,160 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 10:55:33,160 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 10:55:33,161 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 10:55:33,161 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 10:55:33,161 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 10:55:33,162 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 10:55:33,162 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 10:55:33,162 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 10:55:33,163 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 10:55:33,163 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 10:55:33,164 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 10:55:33,164 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 10:55:33,164 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 10:55:33,164 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 10:55:33,165 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 10:55:33,165 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 10:55:33,165 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 10:55:33,165 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 10:55:33,165 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 10:55:33,166 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 10:55:33,166 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 10:55:33,166 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 10:55:33,166 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 10:55:33,166 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 10:55:33,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 10:55:33,167 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 10:55:33,167 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 10:55:33,167 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; [2020-09-25 10:55:33,625 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 10:55:33,645 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 10:55:33,650 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 10:55:33,652 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 10:55:33,652 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 10:55:33,654 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product01.cil.c [2020-09-25 10:55:33,740 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dd64e3e34/6b4e6b6e383147cd909e2ce2bd08a20d/FLAGfc58aacdc [2020-09-25 10:55:34,439 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 10:55:34,440 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product01.cil.c [2020-09-25 10:55:34,464 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dd64e3e34/6b4e6b6e383147cd909e2ce2bd08a20d/FLAGfc58aacdc [2020-09-25 10:55:34,632 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dd64e3e34/6b4e6b6e383147cd909e2ce2bd08a20d [2020-09-25 10:55:34,647 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 10:55:34,653 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 10:55:34,655 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 10:55:34,656 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 10:55:34,660 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 10:55:34,662 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:55:34" (1/1) ... [2020-09-25 10:55:34,666 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@770ea115 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:55:34, skipping insertion in model container [2020-09-25 10:55:34,667 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:55:34" (1/1) ... [2020-09-25 10:55:34,676 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 10:55:34,727 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 10:55:35,182 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:55:35,198 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 10:55:35,307 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:55:35,342 INFO L208 MainTranslator]: Completed translation [2020-09-25 10:55:35,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:55:35 WrapperNode [2020-09-25 10:55:35,343 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 10:55:35,344 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 10:55:35,344 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 10:55:35,345 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 10:55:35,364 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:55:35" (1/1) ... [2020-09-25 10:55:35,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:55:35" (1/1) ... [2020-09-25 10:55:35,387 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:55:35" (1/1) ... [2020-09-25 10:55:35,387 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:55:35" (1/1) ... [2020-09-25 10:55:35,428 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:55:35" (1/1) ... [2020-09-25 10:55:35,448 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:55:35" (1/1) ... [2020-09-25 10:55:35,455 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:55:35" (1/1) ... [2020-09-25 10:55:35,463 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 10:55:35,463 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 10:55:35,463 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 10:55:35,464 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 10:55:35,465 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:55:35" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 10:55:35,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 10:55:35,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 10:55:35,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 10:55:35,564 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 10:55:35,564 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 10:55:35,564 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 10:55:35,564 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 10:55:35,564 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 10:55:35,565 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 10:55:35,565 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 10:55:35,565 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 10:55:35,565 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 10:55:35,565 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 10:55:35,566 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 10:55:35,566 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 10:55:35,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 10:55:35,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 10:55:35,566 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 10:55:35,567 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 10:55:35,567 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 10:55:35,567 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 10:55:35,567 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 10:55:35,568 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 10:55:35,568 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 10:55:35,568 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 10:55:35,568 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 10:55:35,568 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 10:55:35,568 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 10:55:35,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 10:55:35,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 10:55:35,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 10:55:35,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 10:55:35,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 10:55:35,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 10:55:35,570 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 10:55:35,570 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 10:55:35,570 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 10:55:35,570 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 10:55:35,570 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 10:55:35,571 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 10:55:35,571 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 10:55:35,571 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 10:55:35,571 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 10:55:35,571 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 10:55:35,571 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 10:55:35,572 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 10:55:35,572 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 10:55:35,572 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 10:55:35,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 10:55:35,572 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 10:55:35,572 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 10:55:35,573 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 10:55:35,573 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 10:55:35,573 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 10:55:35,573 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 10:55:35,573 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 10:55:35,573 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 10:55:35,574 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 10:55:35,574 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 10:55:35,574 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 10:55:35,574 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 10:55:35,574 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 10:55:35,574 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 10:55:35,575 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 10:55:35,575 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 10:55:35,575 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 10:55:35,575 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 10:55:35,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 10:55:35,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 10:55:35,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 10:55:35,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 10:55:35,576 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 10:55:35,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 10:55:35,576 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 10:55:35,576 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 10:55:35,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 10:55:35,577 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 10:55:35,577 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 10:55:35,577 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 10:55:35,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 10:55:35,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 10:55:35,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 10:55:36,713 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 10:55:36,714 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 10:55:36,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:55:36 BoogieIcfgContainer [2020-09-25 10:55:36,721 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 10:55:36,722 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 10:55:36,722 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 10:55:36,726 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 10:55:36,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:55:34" (1/3) ... [2020-09-25 10:55:36,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51e08a82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:55:36, skipping insertion in model container [2020-09-25 10:55:36,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:55:35" (2/3) ... [2020-09-25 10:55:36,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51e08a82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:55:36, skipping insertion in model container [2020-09-25 10:55:36,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:55:36" (3/3) ... [2020-09-25 10:55:36,731 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product01.cil.c [2020-09-25 10:55:36,743 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 10:55:36,755 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 10:55:36,777 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 10:55:36,811 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 10:55:36,811 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 10:55:36,811 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 10:55:36,811 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 10:55:36,812 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 10:55:36,812 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 10:55:36,812 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 10:55:36,812 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 10:55:36,840 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states. [2020-09-25 10:55:36,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 10:55:36,858 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:55:36,859 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 10:55:36,860 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:55:36,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:55:36,867 INFO L82 PathProgramCache]: Analyzing trace with hash -1134805363, now seen corresponding path program 1 times [2020-09-25 10:55:36,876 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:55:36,877 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1861557458] [2020-09-25 10:55:36,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:55:37,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:37,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:37,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:38,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:41,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:41,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 10:55:41,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 10:55:41,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4350 [2020-09-25 10:55:41,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:41,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:41,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 10:55:41,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 10:55:41,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-09-25 10:55:41,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 10:55:42,156 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:55:42,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:55:42,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:42,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:42,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:42,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:55:42,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:42,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 328 [2020-09-25 10:55:42,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:42,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:42,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:42,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:42,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 10:55:42,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 32 [2020-09-25 10:55:42,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:55:42,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:42,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:42,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:42,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:55:42,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:42,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:55:42,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:42,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:42,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:42,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:42,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:55:42,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:55:42,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:55:42,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:42,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:42,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:42,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:55:42,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:42,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:55:42,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:42,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:42,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:42,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:42,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:55:42,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:42,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:55:42,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:42,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:42,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:42,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:55:42,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:42,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 10:55:42,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:42,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:42,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:42,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:42,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:55:42,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:42,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:55:42,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:42,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:42,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:42,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:55:42,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:42,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:55:42,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:42,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:42,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:42,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:42,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:55:42,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:42,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 10:55:42,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:42,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:42,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:42,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:55:42,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:42,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:55:42,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:42,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:42,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:42,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:42,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:55:42,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:42,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 10:55:42,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:42,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:42,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:42,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:55:42,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:42,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 10:55:42,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:42,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:42,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:55:42,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:42,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:55:42,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:42,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 10:55:42,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:42,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:42,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:42,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:55:42,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:42,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:55:42,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:42,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:42,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:55:42,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:55:42,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:55:42,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:42,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 10:55:42,910 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1861557458] [2020-09-25 10:55:42,913 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:55:42,914 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 10:55:42,915 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096394734] [2020-09-25 10:55:42,925 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 10:55:42,926 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:55:42,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 10:55:42,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 10:55:42,953 INFO L87 Difference]: Start difference. First operand 258 states. Second operand 8 states. [2020-09-25 10:55:43,812 WARN L193 SmtUtils]: Spent 424.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:55:45,220 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:55:45,520 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:55:45,850 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:55:46,177 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:55:46,509 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:55:46,811 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:55:47,127 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:55:47,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:55:47,923 INFO L93 Difference]: Finished difference Result 453 states and 557 transitions. [2020-09-25 10:55:47,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 10:55:47,931 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153 [2020-09-25 10:55:47,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:55:47,952 INFO L225 Difference]: With dead ends: 453 [2020-09-25 10:55:47,953 INFO L226 Difference]: Without dead ends: 314 [2020-09-25 10:55:47,959 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 10:55:47,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2020-09-25 10:55:48,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 282. [2020-09-25 10:55:48,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-09-25 10:55:48,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 317 transitions. [2020-09-25 10:55:48,106 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 317 transitions. Word has length 153 [2020-09-25 10:55:48,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:55:48,107 INFO L479 AbstractCegarLoop]: Abstraction has 282 states and 317 transitions. [2020-09-25 10:55:48,108 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 10:55:48,108 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 317 transitions. [2020-09-25 10:55:48,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-09-25 10:55:48,114 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:55:48,115 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] [2020-09-25 10:55:48,115 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 10:55:48,115 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:55:48,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:55:48,116 INFO L82 PathProgramCache]: Analyzing trace with hash -777322396, now seen corresponding path program 1 times [2020-09-25 10:55:48,116 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:55:48,116 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2086293531] [2020-09-25 10:55:48,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:55:48,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:48,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:48,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:48,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:49,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:50,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:53,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:53,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 10:55:53,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 10:55:53,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-09-25 10:55:53,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:53,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:53,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 10:55:53,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 10:55:53,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 10:55:53,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:53,507 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:55:53,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:55:53,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:53,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:53,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:53,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:55:53,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:53,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-09-25 10:55:53,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:53,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:53,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:53,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:53,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 10:55:53,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:53,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:55:53,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:53,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:53,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:53,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:55:53,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:53,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:55:53,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:53,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:53,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:53,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:53,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:55:53,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:53,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:55:53,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:53,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:53,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:53,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:55:53,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:53,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:55:53,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:53,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:53,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:53,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:53,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:55:53,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:53,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:55:53,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:53,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:53,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:53,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:55:53,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:53,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:55:53,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:53,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:53,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:53,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:53,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:55:53,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:53,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:55:53,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:53,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:53,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:53,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:55:53,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:53,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:55:53,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:53,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:53,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:53,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:53,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:55:53,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:53,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 10:55:53,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:53,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:53,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:53,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:55:53,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:53,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 10:55:53,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:53,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:53,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:55:53,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:55:53,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 10:55:53,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:53,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 10:55:53,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:53,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:53,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:53,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:55:53,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:53,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 10:55:53,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:53,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:53,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:53,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:53,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:55:53,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 10:55:53,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 10:55:53,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:54,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:54,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:54,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:55:54,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:54,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 10:55:54,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:54,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:54,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:55:54,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:54,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:55:54,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 11 [2020-09-25 10:55:54,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 10:55:54,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:54,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:54,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:54,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:55:54,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:54,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:55:54,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:54,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:54,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:55:54,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:55:54,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:55:54,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:54,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 10:55:54,130 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2086293531] [2020-09-25 10:55:54,130 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:55:54,131 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 10:55:54,131 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319383573] [2020-09-25 10:55:54,136 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 10:55:54,136 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:55:54,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 10:55:54,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2020-09-25 10:55:54,137 INFO L87 Difference]: Start difference. First operand 282 states and 317 transitions. Second operand 11 states. [2020-09-25 10:55:54,702 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:55:55,592 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:55:56,419 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:55:56,776 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:55:57,197 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:55:57,544 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:55:57,859 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:55:58,187 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:55:58,505 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:55:58,854 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:55:59,232 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:55:59,543 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:55:59,920 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:56:00,266 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:56:00,626 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:56:01,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:56:01,810 INFO L93 Difference]: Finished difference Result 526 states and 646 transitions. [2020-09-25 10:56:01,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-25 10:56:01,811 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 159 [2020-09-25 10:56:01,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:56:01,817 INFO L225 Difference]: With dead ends: 526 [2020-09-25 10:56:01,818 INFO L226 Difference]: Without dead ends: 398 [2020-09-25 10:56:01,821 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=161, Invalid=651, Unknown=0, NotChecked=0, Total=812 [2020-09-25 10:56:01,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2020-09-25 10:56:01,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 335. [2020-09-25 10:56:01,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 335 states. [2020-09-25 10:56:01,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 371 transitions. [2020-09-25 10:56:01,879 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 371 transitions. Word has length 159 [2020-09-25 10:56:01,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:56:01,880 INFO L479 AbstractCegarLoop]: Abstraction has 335 states and 371 transitions. [2020-09-25 10:56:01,880 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 10:56:01,881 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 371 transitions. [2020-09-25 10:56:01,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-09-25 10:56:01,884 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:56:01,885 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 10:56:01,885 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 10:56:01,885 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:56:01,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:56:01,886 INFO L82 PathProgramCache]: Analyzing trace with hash -1502590393, now seen corresponding path program 1 times [2020-09-25 10:56:01,886 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:56:01,886 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1075086795] [2020-09-25 10:56:01,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:56:01,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:01,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:02,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:02,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-25 10:56:02,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:02,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 326 [2020-09-25 10:56:02,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:02,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:02,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:56:02,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 10:56:02,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 10:56:02,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:02,633 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:56:02,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:56:02,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:02,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:02,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:02,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:56:02,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:02,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 289 [2020-09-25 10:56:02,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:02,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:02,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:56:02,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:56:02,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 10:56:02,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:03,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:56:03,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:03,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:03,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:03,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:56:03,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:03,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:56:03,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:03,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:03,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:56:03,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:56:03,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:56:03,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:03,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:56:03,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:03,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:03,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:03,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:56:03,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:03,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:56:03,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:03,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:03,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:56:03,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:56:03,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:56:03,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:03,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:56:03,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:03,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:03,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:03,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:56:03,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:03,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 10:56:03,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:03,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:03,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:56:03,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:56:03,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:56:03,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:03,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:56:03,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:03,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:03,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:03,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:56:03,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:03,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:56:03,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:03,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:03,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:56:03,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:56:03,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:56:03,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:03,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 10:56:03,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:03,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:03,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:03,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:56:03,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:03,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 10:56:03,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:03,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:03,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:56:03,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:56:03,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:56:03,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:03,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 10:56:03,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:03,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:03,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:03,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:56:03,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:03,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:56:03,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:03,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:03,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:56:03,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:56:03,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:56:03,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:03,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-09-25 10:56:03,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:03,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:03,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:03,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:56:03,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:03,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:56:03,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:03,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:03,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:56:03,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:56:03,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:56:03,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:03,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-25 10:56:03,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:03,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:03,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:03,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:56:03,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:03,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:56:03,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:03,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:03,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:56:03,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:56:03,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:56:03,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:03,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 10:56:03,157 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1075086795] [2020-09-25 10:56:03,157 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:56:03,157 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 10:56:03,158 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228334489] [2020-09-25 10:56:03,158 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 10:56:03,159 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:56:03,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 10:56:03,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 10:56:03,159 INFO L87 Difference]: Start difference. First operand 335 states and 371 transitions. Second operand 5 states. [2020-09-25 10:56:03,638 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:56:04,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:56:04,438 INFO L93 Difference]: Finished difference Result 593 states and 691 transitions. [2020-09-25 10:56:04,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 10:56:04,439 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 168 [2020-09-25 10:56:04,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:56:04,444 INFO L225 Difference]: With dead ends: 593 [2020-09-25 10:56:04,444 INFO L226 Difference]: Without dead ends: 368 [2020-09-25 10:56:04,450 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 10:56:04,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2020-09-25 10:56:04,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 335. [2020-09-25 10:56:04,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 335 states. [2020-09-25 10:56:04,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 367 transitions. [2020-09-25 10:56:04,502 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 367 transitions. Word has length 168 [2020-09-25 10:56:04,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:56:04,503 INFO L479 AbstractCegarLoop]: Abstraction has 335 states and 367 transitions. [2020-09-25 10:56:04,503 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 10:56:04,503 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 367 transitions. [2020-09-25 10:56:04,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-25 10:56:04,506 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:56:04,506 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] [2020-09-25 10:56:04,507 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 10:56:04,507 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:56:04,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:56:04,507 INFO L82 PathProgramCache]: Analyzing trace with hash 1613053112, now seen corresponding path program 1 times [2020-09-25 10:56:04,508 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:56:04,508 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1623366957] [2020-09-25 10:56:04,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:56:04,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 10:56:04,574 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 10:56:04,574 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 10:56:04,580 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 10:56:04,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 10:56:04 BoogieIcfgContainer [2020-09-25 10:56:04,606 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 10:56:04,608 INFO L168 Benchmark]: Toolchain (without parser) took 29959.96 ms. Allocated memory was 144.2 MB in the beginning and 604.5 MB in the end (delta: 460.3 MB). Free memory was 100.4 MB in the beginning and 396.5 MB in the end (delta: -296.1 MB). Peak memory consumption was 164.2 MB. Max. memory is 7.1 GB. [2020-09-25 10:56:04,609 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 144.2 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 10:56:04,610 INFO L168 Benchmark]: CACSL2BoogieTranslator took 688.43 ms. Allocated memory was 144.2 MB in the beginning and 201.9 MB in the end (delta: 57.7 MB). Free memory was 99.7 MB in the beginning and 170.2 MB in the end (delta: -70.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2020-09-25 10:56:04,611 INFO L168 Benchmark]: Boogie Preprocessor took 118.76 ms. Allocated memory is still 201.9 MB. Free memory was 170.2 MB in the beginning and 165.8 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2020-09-25 10:56:04,612 INFO L168 Benchmark]: RCFGBuilder took 1257.76 ms. Allocated memory was 201.9 MB in the beginning and 232.8 MB in the end (delta: 30.9 MB). Free memory was 165.8 MB in the beginning and 180.6 MB in the end (delta: -14.8 MB). Peak memory consumption was 85.9 MB. Max. memory is 7.1 GB. [2020-09-25 10:56:04,613 INFO L168 Benchmark]: TraceAbstraction took 27884.26 ms. Allocated memory was 232.8 MB in the beginning and 604.5 MB in the end (delta: 371.7 MB). Free memory was 180.6 MB in the beginning and 396.5 MB in the end (delta: -216.0 MB). Peak memory consumption was 155.8 MB. Max. memory is 7.1 GB. [2020-09-25 10:56:04,617 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 144.2 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 688.43 ms. Allocated memory was 144.2 MB in the beginning and 201.9 MB in the end (delta: 57.7 MB). Free memory was 99.7 MB in the beginning and 170.2 MB in the end (delta: -70.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 118.76 ms. Allocated memory is still 201.9 MB. Free memory was 170.2 MB in the beginning and 165.8 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1257.76 ms. Allocated memory was 201.9 MB in the beginning and 232.8 MB in the end (delta: 30.9 MB). Free memory was 165.8 MB in the beginning and 180.6 MB in the end (delta: -14.8 MB). Peak memory consumption was 85.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 27884.26 ms. Allocated memory was 232.8 MB in the beginning and 604.5 MB in the end (delta: 371.7 MB). Free memory was 180.6 MB in the beginning and 396.5 MB in the end (delta: -216.0 MB). Peak memory consumption was 155.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 302]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L48] int pumpRunning = 0; [L49] int systemActive = 1; [L307] int cleanupTimeShifts = 4; [L403] int waterLevel = 1; [L404] int methaneLevelCritical = 0; [L652] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L380] int retValue_acc ; [L381] int tmp ; [L385] FCALL select_helpers() [L386] FCALL select_features() [L387] CALL, EXPR valid_product() [L253] int retValue_acc ; [L256] retValue_acc = 1 [L257] return (retValue_acc); [L387] RET, EXPR valid_product() [L387] tmp = valid_product() [L389] COND TRUE \read(tmp) [L391] FCALL setup() [L392] CALL runTest() [L374] CALL test() [L160] int splverifierCounter ; [L161] int tmp ; [L162] int tmp___0 ; [L163] int tmp___1 ; [L164] int tmp___2 ; [L167] splverifierCounter = 0 [L169] COND TRUE 1 [L171] COND TRUE splverifierCounter < 4 [L177] tmp = __VERIFIER_nondet_int() [L179] COND TRUE \read(tmp) [L181] CALL waterRise() [L421] COND TRUE waterLevel < 2 [L422] waterLevel = waterLevel + 1 [L181] RET waterRise() [L187] tmp___0 = __VERIFIER_nondet_int() [L189] COND FALSE !(\read(tmp___0)) [L197] tmp___2 = __VERIFIER_nondet_int() [L199] COND TRUE \read(tmp___2) [L212] CALL timeShift() [L56] COND FALSE !(\read(pumpRunning)) [L63] COND TRUE \read(systemActive) [L65] FCALL processEnvironment() [L71] CALL __utac_acc__Specification3_spec__1() [L265] int tmp ; [L266] int tmp___0 ; [L267] int tmp___1 ; [L271] CALL, EXPR isMethaneLevelCritical() [L442] int retValue_acc ; [L445] retValue_acc = methaneLevelCritical [L446] return (retValue_acc); [L271] RET, EXPR isMethaneLevelCritical() [L271] tmp = isMethaneLevelCritical() [L273] COND FALSE !(\read(tmp)) [L277] CALL, EXPR getWaterLevel() [L474] int retValue_acc ; [L477] retValue_acc = waterLevel [L478] return (retValue_acc); [L277] RET, EXPR getWaterLevel() [L277] tmp___0 = getWaterLevel() [L279] COND TRUE tmp___0 == 2 [L281] CALL, EXPR isPumpRunning() [L111] int retValue_acc ; [L114] retValue_acc = pumpRunning [L115] return (retValue_acc); [L281] RET, EXPR isPumpRunning() [L281] tmp___1 = isPumpRunning() [L283] COND FALSE !(\read(tmp___1)) [L287] CALL __automaton_fail() [L302] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 34 procedures, 578 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 27.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 14.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 657 SDtfs, 1033 SDslu, 1604 SDs, 0 SdLazy, 2803 SolverSat, 291 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 113 GetRequests, 66 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 8.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=335occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 128 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 12.7s InterpolantComputationTime, 651 NumberOfCodeBlocks, 651 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 477 ConstructedInterpolants, 0 QuantifiedInterpolants, 210244 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...