/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 --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 -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 0.1.25-5644d1e-m [2020-08-19 00:09:20,923 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 00:09:20,930 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 00:09:20,966 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 00:09:20,967 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 00:09:20,976 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 00:09:20,977 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 00:09:20,980 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 00:09:20,982 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 00:09:20,984 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 00:09:20,986 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 00:09:20,988 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 00:09:20,988 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 00:09:20,991 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 00:09:20,993 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 00:09:20,994 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 00:09:20,996 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 00:09:20,998 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 00:09:21,000 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 00:09:21,006 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 00:09:21,007 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 00:09:21,008 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 00:09:21,009 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 00:09:21,010 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 00:09:21,024 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-19 00:09:21,024 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-19 00:09:21,024 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-19 00:09:21,025 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-19 00:09:21,026 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-19 00:09:21,030 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-19 00:09:21,030 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-19 00:09:21,031 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-19 00:09:21,031 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-19 00:09:21,032 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-19 00:09:21,033 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-19 00:09:21,033 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-19 00:09:21,037 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-19 00:09:21,037 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-19 00:09:21,037 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 00:09:21,038 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 00:09:21,042 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 00:09:21,043 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 [2020-08-19 00:09:21,080 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 00:09:21,080 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 00:09:21,082 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 00:09:21,082 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 00:09:21,083 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 00:09:21,083 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 00:09:21,083 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 00:09:21,083 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 00:09:21,083 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 00:09:21,084 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 00:09:21,085 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 00:09:21,085 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 00:09:21,085 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 00:09:21,085 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 00:09:21,086 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 00:09:21,086 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 00:09:21,086 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 00:09:21,086 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 00:09:21,086 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 00:09:21,086 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 00:09:21,087 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 00:09:21,087 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 00:09:21,087 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 00:09:21,088 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 00:09:21,088 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 00:09:21,088 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 00:09:21,088 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 00:09:21,088 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 00:09:21,088 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 00:09:21,089 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.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4; [2020-08-19 00:09:21,362 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 00:09:21,374 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 00:09:21,378 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 00:09:21,379 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 00:09:21,380 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 00:09:21,380 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product01.cil.c [2020-08-19 00:09:21,445 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/866f9de86/69c17fe171374c5c93f7fc6fa465a4a0/FLAGe915eed57 [2020-08-19 00:09:21,977 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 00:09:21,978 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product01.cil.c [2020-08-19 00:09:21,991 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/866f9de86/69c17fe171374c5c93f7fc6fa465a4a0/FLAGe915eed57 [2020-08-19 00:09:22,294 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/866f9de86/69c17fe171374c5c93f7fc6fa465a4a0 [2020-08-19 00:09:22,305 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 00:09:22,307 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 00:09:22,308 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 00:09:22,308 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 00:09:22,312 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 00:09:22,313 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 12:09:22" (1/1) ... [2020-08-19 00:09:22,316 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d5ae353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:09:22, skipping insertion in model container [2020-08-19 00:09:22,317 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 12:09:22" (1/1) ... [2020-08-19 00:09:22,325 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 00:09:22,383 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 00:09:22,831 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 00:09:22,850 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 00:09:22,928 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 00:09:22,958 INFO L208 MainTranslator]: Completed translation [2020-08-19 00:09:22,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:09:22 WrapperNode [2020-08-19 00:09:22,958 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 00:09:22,959 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 00:09:22,959 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 00:09:22,960 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 00:09:22,974 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:09:22" (1/1) ... [2020-08-19 00:09:22,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:09:22" (1/1) ... [2020-08-19 00:09:22,993 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:09:22" (1/1) ... [2020-08-19 00:09:22,994 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:09:22" (1/1) ... [2020-08-19 00:09:23,025 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:09:22" (1/1) ... [2020-08-19 00:09:23,036 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:09:22" (1/1) ... [2020-08-19 00:09:23,041 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:09:22" (1/1) ... [2020-08-19 00:09:23,048 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 00:09:23,048 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 00:09:23,048 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 00:09:23,048 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 00:09:23,049 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:09:22" (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 [2020-08-19 00:09:23,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 00:09:23,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 00:09:23,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-19 00:09:23,117 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-19 00:09:23,117 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-19 00:09:23,117 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-19 00:09:23,117 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-19 00:09:23,117 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-19 00:09:23,117 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-19 00:09:23,118 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-19 00:09:23,119 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-19 00:09:23,119 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-19 00:09:23,119 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-19 00:09:23,119 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-19 00:09:23,119 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-19 00:09:23,120 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-08-19 00:09:23,120 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-19 00:09:23,120 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-19 00:09:23,120 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-19 00:09:23,121 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-19 00:09:23,121 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-19 00:09:23,121 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 00:09:23,122 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-19 00:09:23,122 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-19 00:09:23,123 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-19 00:09:23,124 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-19 00:09:23,124 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-19 00:09:23,125 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-19 00:09:23,125 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-19 00:09:23,125 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-19 00:09:23,125 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-19 00:09:23,125 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-19 00:09:23,125 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-19 00:09:23,126 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-19 00:09:23,126 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 00:09:23,126 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-19 00:09:23,126 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-19 00:09:23,126 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-19 00:09:23,127 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-19 00:09:23,127 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-19 00:09:23,127 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-19 00:09:23,127 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-19 00:09:23,129 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-19 00:09:23,129 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-19 00:09:23,130 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-19 00:09:23,131 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-08-19 00:09:23,131 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-19 00:09:23,131 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-19 00:09:23,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-19 00:09:23,131 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-19 00:09:23,131 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-19 00:09:23,132 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-19 00:09:23,132 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-19 00:09:23,133 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-19 00:09:23,133 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-19 00:09:23,133 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-19 00:09:23,133 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-19 00:09:23,134 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-19 00:09:23,134 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-19 00:09:23,134 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-19 00:09:23,134 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-19 00:09:23,134 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-19 00:09:23,135 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 00:09:23,135 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-19 00:09:23,135 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-19 00:09:23,135 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-19 00:09:23,135 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-19 00:09:23,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-19 00:09:23,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-19 00:09:23,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-19 00:09:23,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-19 00:09:23,137 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-19 00:09:23,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-19 00:09:23,137 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-19 00:09:23,138 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-19 00:09:23,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-19 00:09:23,139 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-19 00:09:23,139 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-19 00:09:23,139 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-19 00:09:23,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 00:09:23,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-19 00:09:23,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 00:09:24,274 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 00:09:24,275 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-19 00:09:24,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 12:09:24 BoogieIcfgContainer [2020-08-19 00:09:24,280 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 00:09:24,282 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 00:09:24,282 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 00:09:24,285 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 00:09:24,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 12:09:22" (1/3) ... [2020-08-19 00:09:24,286 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@150de2c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 12:09:24, skipping insertion in model container [2020-08-19 00:09:24,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:09:22" (2/3) ... [2020-08-19 00:09:24,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@150de2c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 12:09:24, skipping insertion in model container [2020-08-19 00:09:24,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 12:09:24" (3/3) ... [2020-08-19 00:09:24,289 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product01.cil.c [2020-08-19 00:09:24,300 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 00:09:24,309 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 00:09:24,324 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 00:09:24,350 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 00:09:24,351 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 00:09:24,351 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 00:09:24,351 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 00:09:24,351 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 00:09:24,351 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 00:09:24,352 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 00:09:24,352 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 00:09:24,374 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states. [2020-08-19 00:09:24,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-08-19 00:09:24,384 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:09:24,385 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] [2020-08-19 00:09:24,385 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:09:24,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:09:24,390 INFO L82 PathProgramCache]: Analyzing trace with hash -438635737, now seen corresponding path program 1 times [2020-08-19 00:09:24,397 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:09:24,397 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [67764927] [2020-08-19 00:09:24,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:09:24,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:09:25,109 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 00:09:25,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:09:25,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:09:25,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 00:09:25,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:09:25,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 00:09:25,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:09:25,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 00:09:25,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:09:25,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 00:09:25,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:09:25,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 00:09:25,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:09:25,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 00:09:25,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:09:25,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-19 00:09:25,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:09:25,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 00:09:25,247 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [67764927] [2020-08-19 00:09:25,249 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 00:09:25,249 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-19 00:09:25,251 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548480886] [2020-08-19 00:09:25,257 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-19 00:09:25,258 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 00:09:25,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-19 00:09:25,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-19 00:09:25,277 INFO L87 Difference]: Start difference. First operand 133 states. Second operand 3 states. [2020-08-19 00:09:26,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 00:09:26,241 INFO L93 Difference]: Finished difference Result 211 states and 284 transitions. [2020-08-19 00:09:26,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-19 00:09:26,243 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-08-19 00:09:26,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 00:09:26,257 INFO L225 Difference]: With dead ends: 211 [2020-08-19 00:09:26,258 INFO L226 Difference]: Without dead ends: 115 [2020-08-19 00:09:26,262 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 [2020-08-19 00:09:26,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-08-19 00:09:26,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 87. [2020-08-19 00:09:26,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-08-19 00:09:26,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 101 transitions. [2020-08-19 00:09:26,338 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 101 transitions. Word has length 52 [2020-08-19 00:09:26,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 00:09:26,338 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 101 transitions. [2020-08-19 00:09:26,338 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-19 00:09:26,339 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 101 transitions. [2020-08-19 00:09:26,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-08-19 00:09:26,342 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:09:26,342 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] [2020-08-19 00:09:26,343 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 00:09:26,343 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:09:26,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:09:26,343 INFO L82 PathProgramCache]: Analyzing trace with hash -1274777231, now seen corresponding path program 1 times [2020-08-19 00:09:26,344 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:09:26,344 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [624288124] [2020-08-19 00:09:26,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:09:26,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:09:26,651 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 00:09:26,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:09:26,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:09:26,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 00:09:26,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:09:26,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 00:09:26,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:09:26,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 00:09:26,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:09:26,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 00:09:26,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:09:26,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-19 00:09:26,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:09:26,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-19 00:09:26,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:09:26,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-19 00:09:26,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:09:26,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 00:09:26,699 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [624288124] [2020-08-19 00:09:26,700 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 00:09:26,700 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-19 00:09:26,700 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402176042] [2020-08-19 00:09:26,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-19 00:09:26,702 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 00:09:26,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-19 00:09:26,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-19 00:09:26,703 INFO L87 Difference]: Start difference. First operand 87 states and 101 transitions. Second operand 4 states. [2020-08-19 00:09:27,141 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 00:09:27,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 00:09:27,641 INFO L93 Difference]: Finished difference Result 144 states and 175 transitions. [2020-08-19 00:09:27,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-19 00:09:27,642 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-08-19 00:09:27,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 00:09:27,647 INFO L225 Difference]: With dead ends: 144 [2020-08-19 00:09:27,647 INFO L226 Difference]: Without dead ends: 99 [2020-08-19 00:09:27,650 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-19 00:09:27,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-08-19 00:09:27,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 78. [2020-08-19 00:09:27,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-08-19 00:09:27,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 89 transitions. [2020-08-19 00:09:27,715 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 89 transitions. Word has length 53 [2020-08-19 00:09:27,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 00:09:27,716 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 89 transitions. [2020-08-19 00:09:27,716 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-19 00:09:27,716 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 89 transitions. [2020-08-19 00:09:27,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-08-19 00:09:27,728 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:09:27,728 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] [2020-08-19 00:09:27,728 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 00:09:27,728 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:09:27,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:09:27,729 INFO L82 PathProgramCache]: Analyzing trace with hash -1377435257, now seen corresponding path program 1 times [2020-08-19 00:09:27,729 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:09:27,729 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [115316790] [2020-08-19 00:09:27,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:09:27,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:09:28,009 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 00:09:28,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:09:28,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:09:28,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 00:09:28,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:09:28,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 00:09:28,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:09:28,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 00:09:28,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:09:28,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 00:09:28,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:09:28,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 00:09:28,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:09:28,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-19 00:09:28,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:09:28,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-19 00:09:28,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:09:28,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 00:09:28,063 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [115316790] [2020-08-19 00:09:28,063 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 00:09:28,063 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-19 00:09:28,064 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187162570] [2020-08-19 00:09:28,064 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-19 00:09:28,064 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 00:09:28,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-19 00:09:28,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-19 00:09:28,065 INFO L87 Difference]: Start difference. First operand 78 states and 89 transitions. Second operand 4 states. [2020-08-19 00:09:28,345 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 00:09:28,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 00:09:28,870 INFO L93 Difference]: Finished difference Result 153 states and 189 transitions. [2020-08-19 00:09:28,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-19 00:09:28,876 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 57 [2020-08-19 00:09:28,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 00:09:28,881 INFO L225 Difference]: With dead ends: 153 [2020-08-19 00:09:28,882 INFO L226 Difference]: Without dead ends: 99 [2020-08-19 00:09:28,884 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-19 00:09:28,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-08-19 00:09:28,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 78. [2020-08-19 00:09:28,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-08-19 00:09:28,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 88 transitions. [2020-08-19 00:09:28,911 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 88 transitions. Word has length 57 [2020-08-19 00:09:28,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 00:09:28,912 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 88 transitions. [2020-08-19 00:09:28,912 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-19 00:09:28,912 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 88 transitions. [2020-08-19 00:09:28,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-08-19 00:09:28,913 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:09:28,913 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] [2020-08-19 00:09:28,913 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-19 00:09:28,914 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:09:28,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:09:28,914 INFO L82 PathProgramCache]: Analyzing trace with hash 1699431063, now seen corresponding path program 1 times [2020-08-19 00:09:28,914 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:09:28,916 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [993649474] [2020-08-19 00:09:28,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:09:28,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:09:29,208 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 00:09:29,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:09:29,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:09:29,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 00:09:29,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:09:29,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 00:09:29,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:09:29,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 00:09:29,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:09:29,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 00:09:29,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:09:29,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-08-19 00:09:29,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:09:29,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-19 00:09:29,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:09:29,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-19 00:09:29,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:09:29,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-08-19 00:09:29,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:09:29,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 00:09:29,279 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [993649474] [2020-08-19 00:09:29,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 00:09:29,280 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-19 00:09:29,280 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101673735] [2020-08-19 00:09:29,281 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-19 00:09:29,281 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 00:09:29,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-19 00:09:29,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-08-19 00:09:29,282 INFO L87 Difference]: Start difference. First operand 78 states and 88 transitions. Second operand 7 states. [2020-08-19 00:09:29,631 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 00:09:30,484 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 00:09:30,748 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 00:09:30,987 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 00:09:31,272 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 00:09:31,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 00:09:31,530 INFO L93 Difference]: Finished difference Result 196 states and 245 transitions. [2020-08-19 00:09:31,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-19 00:09:31,531 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 60 [2020-08-19 00:09:31,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 00:09:31,534 INFO L225 Difference]: With dead ends: 196 [2020-08-19 00:09:31,534 INFO L226 Difference]: Without dead ends: 142 [2020-08-19 00:09:31,535 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-08-19 00:09:31,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2020-08-19 00:09:31,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 128. [2020-08-19 00:09:31,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-08-19 00:09:31,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 150 transitions. [2020-08-19 00:09:31,579 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 150 transitions. Word has length 60 [2020-08-19 00:09:31,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 00:09:31,579 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 150 transitions. [2020-08-19 00:09:31,580 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-19 00:09:31,580 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 150 transitions. [2020-08-19 00:09:31,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-08-19 00:09:31,581 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:09:31,581 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] [2020-08-19 00:09:31,582 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-19 00:09:31,582 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:09:31,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:09:31,582 INFO L82 PathProgramCache]: Analyzing trace with hash -1843670287, now seen corresponding path program 1 times [2020-08-19 00:09:31,583 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:09:31,583 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1662650669] [2020-08-19 00:09:31,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:09:31,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:09:31,823 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 00:09:31,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:09:31,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:09:31,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 00:09:31,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:09:31,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 00:09:31,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:09:31,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 00:09:31,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:09:31,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 00:09:31,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:09:31,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-19 00:09:31,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:09:31,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-19 00:09:31,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:09:31,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-19 00:09:31,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:09:31,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-19 00:09:31,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:09:31,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-19 00:09:31,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:09:31,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 00:09:31,884 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1662650669] [2020-08-19 00:09:31,884 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 00:09:31,884 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-19 00:09:31,885 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552787712] [2020-08-19 00:09:31,885 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-19 00:09:31,885 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 00:09:31,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-19 00:09:31,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-19 00:09:31,886 INFO L87 Difference]: Start difference. First operand 128 states and 150 transitions. Second operand 5 states. [2020-08-19 00:09:32,175 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 00:09:32,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 00:09:32,638 INFO L93 Difference]: Finished difference Result 192 states and 233 transitions. [2020-08-19 00:09:32,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-19 00:09:32,638 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 64 [2020-08-19 00:09:32,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 00:09:32,640 INFO L225 Difference]: With dead ends: 192 [2020-08-19 00:09:32,640 INFO L226 Difference]: Without dead ends: 127 [2020-08-19 00:09:32,642 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-19 00:09:32,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-08-19 00:09:32,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 115. [2020-08-19 00:09:32,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-08-19 00:09:32,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 130 transitions. [2020-08-19 00:09:32,666 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 130 transitions. Word has length 64 [2020-08-19 00:09:32,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 00:09:32,667 INFO L479 AbstractCegarLoop]: Abstraction has 115 states and 130 transitions. [2020-08-19 00:09:32,667 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-19 00:09:32,667 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 130 transitions. [2020-08-19 00:09:32,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-08-19 00:09:32,668 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:09:32,668 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] [2020-08-19 00:09:32,669 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-19 00:09:32,669 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:09:32,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:09:32,669 INFO L82 PathProgramCache]: Analyzing trace with hash -2045663983, now seen corresponding path program 1 times [2020-08-19 00:09:32,670 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:09:32,670 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [440071235] [2020-08-19 00:09:32,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:09:32,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-19 00:09:32,734 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-19 00:09:32,734 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-19 00:09:32,738 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-19 00:09:32,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.08 12:09:32 BoogieIcfgContainer [2020-08-19 00:09:32,773 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-19 00:09:32,777 INFO L168 Benchmark]: Toolchain (without parser) took 10470.19 ms. Allocated memory was 140.5 MB in the beginning and 410.0 MB in the end (delta: 269.5 MB). Free memory was 102.3 MB in the beginning and 266.8 MB in the end (delta: -164.4 MB). Peak memory consumption was 105.0 MB. Max. memory is 7.1 GB. [2020-08-19 00:09:32,778 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 140.5 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-19 00:09:32,779 INFO L168 Benchmark]: CACSL2BoogieTranslator took 650.86 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 102.1 MB in the beginning and 172.7 MB in the end (delta: -70.6 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. [2020-08-19 00:09:32,781 INFO L168 Benchmark]: Boogie Preprocessor took 88.55 ms. Allocated memory is still 203.4 MB. Free memory was 172.7 MB in the beginning and 168.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-08-19 00:09:32,782 INFO L168 Benchmark]: RCFGBuilder took 1232.33 ms. Allocated memory was 203.4 MB in the beginning and 235.4 MB in the end (delta: 32.0 MB). Free memory was 168.7 MB in the beginning and 200.7 MB in the end (delta: -32.0 MB). Peak memory consumption was 82.6 MB. Max. memory is 7.1 GB. [2020-08-19 00:09:32,783 INFO L168 Benchmark]: TraceAbstraction took 8491.88 ms. Allocated memory was 235.4 MB in the beginning and 410.0 MB in the end (delta: 174.6 MB). Free memory was 200.7 MB in the beginning and 266.8 MB in the end (delta: -66.1 MB). Peak memory consumption was 108.5 MB. Max. memory is 7.1 GB. [2020-08-19 00:09:32,792 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 140.5 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 650.86 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 102.1 MB in the beginning and 172.7 MB in the end (delta: -70.6 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 88.55 ms. Allocated memory is still 203.4 MB. Free memory was 172.7 MB in the beginning and 168.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1232.33 ms. Allocated memory was 203.4 MB in the beginning and 235.4 MB in the end (delta: 32.0 MB). Free memory was 168.7 MB in the beginning and 200.7 MB in the end (delta: -32.0 MB). Peak memory consumption was 82.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 8491.88 ms. Allocated memory was 235.4 MB in the beginning and 410.0 MB in the end (delta: 174.6 MB). Free memory was 200.7 MB in the beginning and 266.8 MB in the end (delta: -66.1 MB). Peak memory consumption was 108.5 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, 197 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 8.3s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 5.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 366 SDtfs, 443 SDslu, 159 SDs, 0 SdLazy, 702 SolverSat, 237 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=133occurred in iteration=0, 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, 5 MinimizatonAttempts, 96 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 350 NumberOfCodeBlocks, 350 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 281 ConstructedInterpolants, 0 QuantifiedInterpolants, 77364 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...