/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=0.4 --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_product10.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:10:46,782 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:10:46,786 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:10:46,835 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:10:46,836 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:10:46,846 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:10:46,849 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:10:46,853 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:10:46,855 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:10:46,859 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:10:46,860 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:10:46,861 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:10:46,862 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:10:46,865 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:10:46,869 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:10:46,871 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:10:46,873 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:10:46,874 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:10:46,876 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:10:46,883 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:10:46,886 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:10:46,887 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:10:46,889 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:10:46,889 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:10:46,894 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:10:46,894 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:10:46,894 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:10:46,897 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:10:46,898 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:10:46,899 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:10:46,900 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:10:46,901 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:10:46,901 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:10:46,902 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:10:46,904 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:10:46,904 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:10:46,905 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:10:46,905 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:10:46,905 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:10:46,906 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:10:46,908 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:10:46,909 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 13:10:46,960 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:10:46,960 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:10:46,962 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:10:46,962 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:10:46,963 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:10:46,963 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:10:46,963 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:10:46,964 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:10:46,964 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:10:46,964 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:10:46,965 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:10:46,966 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:10:46,966 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:10:46,966 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:10:46,966 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:10:46,967 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:10:46,967 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:10:46,967 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:10:46,967 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:10:46,968 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:10:46,968 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:10:46,968 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:10:46,968 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:10:46,968 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:10:46,969 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:10:46,969 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:10:46,969 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:10:46,969 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:10:46,969 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:10:46,970 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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;log-additional-information=true; [2020-09-25 13:10:47,418 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:10:47,443 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:10:47,448 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:10:47,450 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:10:47,451 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:10:47,452 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product10.cil.c [2020-09-25 13:10:47,527 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/563217c62/c54779292e8b446e8a5ce3ab5fbd1bb7/FLAG8e4d87e82 [2020-09-25 13:10:48,162 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:10:48,163 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product10.cil.c [2020-09-25 13:10:48,177 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/563217c62/c54779292e8b446e8a5ce3ab5fbd1bb7/FLAG8e4d87e82 [2020-09-25 13:10:48,447 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/563217c62/c54779292e8b446e8a5ce3ab5fbd1bb7 [2020-09-25 13:10:48,461 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:10:48,465 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:10:48,468 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:10:48,468 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:10:48,473 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:10:48,474 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:10:48" (1/1) ... [2020-09-25 13:10:48,478 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53baac7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:48, skipping insertion in model container [2020-09-25 13:10:48,478 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:10:48" (1/1) ... [2020-09-25 13:10:48,487 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:10:48,537 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:10:48,947 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:10:48,965 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:10:49,066 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:10:49,116 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:10:49,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:49 WrapperNode [2020-09-25 13:10:49,117 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:10:49,118 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:10:49,118 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:10:49,118 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:10:49,132 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:49" (1/1) ... [2020-09-25 13:10:49,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:49" (1/1) ... [2020-09-25 13:10:49,154 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:49" (1/1) ... [2020-09-25 13:10:49,155 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:49" (1/1) ... [2020-09-25 13:10:49,187 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:49" (1/1) ... [2020-09-25 13:10:49,199 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:49" (1/1) ... [2020-09-25 13:10:49,205 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:49" (1/1) ... [2020-09-25 13:10:49,214 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:10:49,215 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:10:49,215 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:10:49,215 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:10:49,216 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:49" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:10:49,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:10:49,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:10:49,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 13:10:49,293 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 13:10:49,294 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 13:10:49,294 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 13:10:49,294 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 13:10:49,294 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 13:10:49,294 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 13:10:49,295 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 13:10:49,295 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 13:10:49,295 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 13:10:49,295 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 13:10:49,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 13:10:49,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 13:10:49,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 13:10:49,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 13:10:49,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 13:10:49,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 13:10:49,297 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 13:10:49,297 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 13:10:49,297 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 13:10:49,297 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 13:10:49,297 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-09-25 13:10:49,297 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 13:10:49,298 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 13:10:49,298 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 13:10:49,298 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 13:10:49,298 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 13:10:49,298 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 13:10:49,298 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 13:10:49,299 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 13:10:49,299 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 13:10:49,299 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 13:10:49,299 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 13:10:49,299 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:10:49,299 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:10:49,300 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 13:10:49,300 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 13:10:49,300 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 13:10:49,300 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 13:10:49,300 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 13:10:49,300 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 13:10:49,301 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 13:10:49,301 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 13:10:49,301 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 13:10:49,301 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 13:10:49,301 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 13:10:49,301 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 13:10:49,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 13:10:49,302 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 13:10:49,302 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 13:10:49,302 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 13:10:49,302 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 13:10:49,302 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 13:10:49,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 13:10:49,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 13:10:49,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 13:10:49,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 13:10:49,303 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 13:10:49,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 13:10:49,304 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 13:10:49,304 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 13:10:49,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 13:10:49,304 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 13:10:49,304 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 13:10:49,304 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 13:10:49,304 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 13:10:49,305 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 13:10:49,305 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 13:10:49,305 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 13:10:49,305 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 13:10:49,305 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 13:10:49,305 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 13:10:49,306 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 13:10:49,306 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 13:10:49,306 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 13:10:49,306 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-09-25 13:10:49,306 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 13:10:49,306 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 13:10:49,307 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 13:10:49,307 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 13:10:49,307 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:10:49,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:10:49,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 13:10:49,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:10:50,484 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:10:50,484 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 13:10:50,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:10:50 BoogieIcfgContainer [2020-09-25 13:10:50,495 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:10:50,498 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:10:50,498 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:10:50,502 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:10:50,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:10:48" (1/3) ... [2020-09-25 13:10:50,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77ae2c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:10:50, skipping insertion in model container [2020-09-25 13:10:50,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:49" (2/3) ... [2020-09-25 13:10:50,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77ae2c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:10:50, skipping insertion in model container [2020-09-25 13:10:50,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:10:50" (3/3) ... [2020-09-25 13:10:50,507 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product10.cil.c [2020-09-25 13:10:50,519 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:10:50,532 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:10:50,555 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:10:50,600 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:10:50,600 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:10:50,600 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:10:50,600 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:10:50,601 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:10:50,601 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:10:50,601 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:10:50,601 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:10:50,638 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states. [2020-09-25 13:10:50,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 13:10:50,665 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:10:50,667 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 13:10:50,668 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:10:50,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:10:50,678 INFO L82 PathProgramCache]: Analyzing trace with hash -350196146, now seen corresponding path program 1 times [2020-09-25 13:10:50,691 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:10:50,692 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1156757443] [2020-09-25 13:10:50,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:10:51,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:51,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:51,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:53,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:56,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:56,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 13:10:56,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:10:56,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-09-25 13:10:56,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:56,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:56,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:10:56,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 13:10:56,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-09-25 13:10:56,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 13:10:56,535 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:10:56,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:10:56,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:56,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:56,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:56,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:10:56,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:10:56,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 316 [2020-09-25 13:10:56,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:56,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:56,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:10:56,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:10:56,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 13:10:56,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-09-25 13:10:57,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:10:57,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:57,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:57,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:57,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:10:57,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:10:57,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 13:10:57,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:57,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:57,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:10:57,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:10:57,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:10:57,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:10:57,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:10:57,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:57,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:57,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:57,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:10:57,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:10:57,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:10:57,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:57,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:57,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:10:57,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:10:57,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:10:57,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:10:57,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:10:57,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:57,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:57,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:57,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:10:57,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:10:57,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 13:10:57,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:57,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:57,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:10:57,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:10:57,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:10:57,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:10:57,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:10:57,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:57,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:57,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:57,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:10:57,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:10:57,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:10:57,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:57,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:57,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:10:57,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:10:57,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:10:57,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:10:57,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 13:10:57,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:57,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:57,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:57,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:10:57,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:10:57,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:10:57,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:57,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:57,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:10:57,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:10:57,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:10:57,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:10:57,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 13:10:57,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:57,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:57,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:57,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:10:57,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:10:57,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:10:57,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:57,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:57,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:10:57,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:10:57,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:10:57,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:10:57,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 13:10:57,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:57,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:57,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:57,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:10:57,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:10:57,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:10:57,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:57,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:57,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:10:57,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:10:57,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:10:57,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:10:57,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:10:57,180 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1156757443] [2020-09-25 13:10:57,182 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:10:57,183 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 13:10:57,184 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834877939] [2020-09-25 13:10:57,191 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 13:10:57,191 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:10:57,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 13:10:57,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 13:10:57,214 INFO L87 Difference]: Start difference. First operand 272 states. Second operand 4 states. [2020-09-25 13:10:57,779 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:10:58,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:10:58,721 INFO L93 Difference]: Finished difference Result 374 states and 448 transitions. [2020-09-25 13:10:58,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:10:58,725 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 153 [2020-09-25 13:10:58,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:10:58,745 INFO L225 Difference]: With dead ends: 374 [2020-09-25 13:10:58,745 INFO L226 Difference]: Without dead ends: 243 [2020-09-25 13:10:58,751 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:10:58,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2020-09-25 13:10:58,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 205. [2020-09-25 13:10:58,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-09-25 13:10:58,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 218 transitions. [2020-09-25 13:10:58,856 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 218 transitions. Word has length 153 [2020-09-25 13:10:58,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:10:58,857 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 218 transitions. [2020-09-25 13:10:58,857 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 13:10:58,857 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 218 transitions. [2020-09-25 13:10:58,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-09-25 13:10:58,862 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:10:58,863 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:10:58,863 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:10:58,863 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:10:58,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:10:58,864 INFO L82 PathProgramCache]: Analyzing trace with hash -220686317, now seen corresponding path program 1 times [2020-09-25 13:10:58,864 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:10:58,864 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1894317441] [2020-09-25 13:10:58,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:10:58,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:58,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:59,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:02,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:02,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-25 13:11:02,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:11:02,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3685 [2020-09-25 13:11:02,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:02,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:02,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 13:11:02,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 13:11:02,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-09-25 13:11:02,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:03,097 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:11:03,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:11:03,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:03,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:03,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:03,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:11:03,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:03,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 255 [2020-09-25 13:11:03,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:03,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:03,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:03,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:03,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 13:11:03,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:03,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:11:03,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:03,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:03,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:03,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:11:03,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:03,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:11:03,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:03,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:03,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:03,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:03,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:11:03,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:03,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:11:03,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:03,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:03,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:03,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:11:03,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:03,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:11:03,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:03,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:03,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:03,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:03,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:11:03,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:03,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:11:03,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:03,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:03,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:03,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:11:03,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:03,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:11:03,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:03,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:03,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:03,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:03,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:11:03,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:03,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:11:03,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:03,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:03,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:03,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:11:03,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:03,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:11:03,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:03,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:03,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:03,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:03,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:11:03,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:03,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 13:11:03,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:03,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:03,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:03,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:11:03,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:03,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:11:03,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:03,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:03,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:03,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:03,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:11:03,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:03,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 13:11:03,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:03,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:03,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:03,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:11:03,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:03,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:11:03,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:03,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:03,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:03,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:03,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:11:03,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:03,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 13:11:03,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:03,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:03,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:03,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:11:03,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:03,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:11:03,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:03,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:03,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:11:03,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:03,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:11:03,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:03,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 13:11:03,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:03,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:03,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:03,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:11:03,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:03,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:11:03,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:03,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:03,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:11:03,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:11:03,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:11:03,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:03,649 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 13:11:03,650 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1894317441] [2020-09-25 13:11:03,651 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:11:03,651 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 13:11:03,651 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011437047] [2020-09-25 13:11:03,655 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 13:11:03,656 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:11:03,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 13:11:03,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 13:11:03,656 INFO L87 Difference]: Start difference. First operand 205 states and 218 transitions. Second operand 9 states. [2020-09-25 13:11:04,190 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:11:05,398 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:11:05,728 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:11:06,104 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:11:06,445 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 13:11:06,781 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:11:07,222 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:11:07,540 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:11:07,925 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:11:08,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:11:08,664 INFO L93 Difference]: Finished difference Result 432 states and 514 transitions. [2020-09-25 13:11:08,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 13:11:08,665 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 157 [2020-09-25 13:11:08,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:11:08,671 INFO L225 Difference]: With dead ends: 432 [2020-09-25 13:11:08,671 INFO L226 Difference]: Without dead ends: 320 [2020-09-25 13:11:08,674 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2020-09-25 13:11:08,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2020-09-25 13:11:08,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 283. [2020-09-25 13:11:08,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 283 states. [2020-09-25 13:11:08,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 309 transitions. [2020-09-25 13:11:08,739 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 309 transitions. Word has length 157 [2020-09-25 13:11:08,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:11:08,740 INFO L479 AbstractCegarLoop]: Abstraction has 283 states and 309 transitions. [2020-09-25 13:11:08,740 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 13:11:08,740 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 309 transitions. [2020-09-25 13:11:08,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-25 13:11:08,744 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:11:08,745 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:11:08,745 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:11:08,745 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:11:08,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:11:08,746 INFO L82 PathProgramCache]: Analyzing trace with hash -1340891089, now seen corresponding path program 1 times [2020-09-25 13:11:08,746 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:11:08,746 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [573764254] [2020-09-25 13:11:08,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:11:08,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 13:11:08,826 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 13:11:08,826 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 13:11:08,832 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:11:08,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 01:11:08 BoogieIcfgContainer [2020-09-25 13:11:08,860 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 13:11:08,863 INFO L168 Benchmark]: Toolchain (without parser) took 20400.16 ms. Allocated memory was 141.0 MB in the beginning and 494.4 MB in the end (delta: 353.4 MB). Free memory was 101.8 MB in the beginning and 90.0 MB in the end (delta: 11.8 MB). Peak memory consumption was 365.1 MB. Max. memory is 7.1 GB. [2020-09-25 13:11:08,864 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 120.9 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-09-25 13:11:08,865 INFO L168 Benchmark]: CACSL2BoogieTranslator took 649.04 ms. Allocated memory was 141.0 MB in the beginning and 205.0 MB in the end (delta: 64.0 MB). Free memory was 100.9 MB in the beginning and 174.1 MB in the end (delta: -73.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. [2020-09-25 13:11:08,865 INFO L168 Benchmark]: Boogie Preprocessor took 96.53 ms. Allocated memory is still 205.0 MB. Free memory was 174.1 MB in the beginning and 170.3 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. [2020-09-25 13:11:08,866 INFO L168 Benchmark]: RCFGBuilder took 1281.00 ms. Allocated memory was 205.0 MB in the beginning and 235.9 MB in the end (delta: 30.9 MB). Free memory was 170.3 MB in the beginning and 180.2 MB in the end (delta: -9.9 MB). Peak memory consumption was 82.5 MB. Max. memory is 7.1 GB. [2020-09-25 13:11:08,868 INFO L168 Benchmark]: TraceAbstraction took 18362.44 ms. Allocated memory was 235.9 MB in the beginning and 494.4 MB in the end (delta: 258.5 MB). Free memory was 180.2 MB in the beginning and 90.0 MB in the end (delta: 90.2 MB). Peak memory consumption was 348.6 MB. Max. memory is 7.1 GB. [2020-09-25 13:11:08,872 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 120.9 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 649.04 ms. Allocated memory was 141.0 MB in the beginning and 205.0 MB in the end (delta: 64.0 MB). Free memory was 100.9 MB in the beginning and 174.1 MB in the end (delta: -73.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 96.53 ms. Allocated memory is still 205.0 MB. Free memory was 174.1 MB in the beginning and 170.3 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1281.00 ms. Allocated memory was 205.0 MB in the beginning and 235.9 MB in the end (delta: 30.9 MB). Free memory was 170.3 MB in the beginning and 180.2 MB in the end (delta: -9.9 MB). Peak memory consumption was 82.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18362.44 ms. Allocated memory was 235.9 MB in the beginning and 494.4 MB in the end (delta: 258.5 MB). Free memory was 180.2 MB in the beginning and 90.0 MB in the end (delta: 90.2 MB). Peak memory consumption was 348.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 168]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L84] int waterLevel = 1; [L85] int methaneLevelCritical = 0; [L342] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L613] int pumpRunning = 0; [L614] int systemActive = 1; [L781] int cleanupTimeShifts = 4; [L854] int retValue_acc ; [L855] int tmp ; [L859] FCALL select_helpers() [L860] FCALL select_features() [L861] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L861] RET, EXPR valid_product() [L861] tmp = valid_product() [L863] COND TRUE \read(tmp) [L865] FCALL setup() [L866] CALL runTest() [L848] CALL test() [L543] int splverifierCounter ; [L544] int tmp ; [L545] int tmp___0 ; [L546] int tmp___1 ; [L547] int tmp___2 ; [L550] splverifierCounter = 0 [L552] COND TRUE 1 [L554] COND TRUE splverifierCounter < 4 [L560] tmp = __VERIFIER_nondet_int() [L562] COND TRUE \read(tmp) [L564] CALL waterRise() [L102] COND TRUE waterLevel < 2 [L103] waterLevel = waterLevel + 1 [L564] RET waterRise() [L570] tmp___0 = __VERIFIER_nondet_int() [L572] COND FALSE !(\read(tmp___0)) [L580] tmp___2 = __VERIFIER_nondet_int() [L582] COND TRUE \read(tmp___2) [L584] CALL startSystem() [L742] systemActive = 1 [L584] RET startSystem() [L597] CALL timeShift() [L621] COND FALSE !(\read(pumpRunning)) [L628] COND TRUE \read(systemActive) [L630] FCALL processEnvironment() [L636] CALL __utac_acc__Specification3_spec__1() [L748] int tmp ; [L749] int tmp___0 ; [L750] int tmp___1 ; [L754] CALL, EXPR isMethaneLevelCritical() [L123] int retValue_acc ; [L126] retValue_acc = methaneLevelCritical [L127] return (retValue_acc); [L754] RET, EXPR isMethaneLevelCritical() [L754] tmp = isMethaneLevelCritical() [L756] COND FALSE !(\read(tmp)) [L760] CALL, EXPR getWaterLevel() [L155] int retValue_acc ; [L158] retValue_acc = waterLevel [L159] return (retValue_acc); [L760] RET, EXPR getWaterLevel() [L760] tmp___0 = getWaterLevel() [L762] COND TRUE tmp___0 == 2 [L764] CALL, EXPR isPumpRunning() [L694] int retValue_acc ; [L697] retValue_acc = pumpRunning [L698] return (retValue_acc); [L764] RET, EXPR isPumpRunning() [L764] tmp___1 = isPumpRunning() [L766] COND FALSE !(\read(tmp___1)) [L770] CALL __automaton_fail() [L168] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 591 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 18.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 6.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 400 SDtfs, 539 SDslu, 722 SDs, 0 SdLazy, 1136 SolverSat, 179 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=283occurred 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: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 75 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 10.7s InterpolantComputationTime, 485 NumberOfCodeBlocks, 485 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 308 ConstructedInterpolants, 0 QuantifiedInterpolants, 135396 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...