./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product43.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec1_product43.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 63b48aee14c7431a4aa25f8de4f2dd8129d50ad4 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-28 18:58:15,800 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 18:58:15,803 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 18:58:15,816 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 18:58:15,817 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 18:58:15,818 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 18:58:15,820 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 18:58:15,822 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 18:58:15,824 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 18:58:15,825 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 18:58:15,827 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 18:58:15,828 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 18:58:15,829 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 18:58:15,830 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 18:58:15,832 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 18:58:15,834 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 18:58:15,836 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 18:58:15,839 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 18:58:15,841 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 18:58:15,844 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 18:58:15,849 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 18:58:15,854 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 18:58:15,858 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 18:58:15,861 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 18:58:15,866 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 18:58:15,867 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 18:58:15,867 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 18:58:15,868 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 18:58:15,870 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 18:58:15,871 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 18:58:15,872 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 18:58:15,874 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 18:58:15,875 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 18:58:15,876 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 18:58:15,878 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 18:58:15,879 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 18:58:15,880 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 18:58:15,880 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 18:58:15,880 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 18:58:15,882 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 18:58:15,884 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 18:58:15,885 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 18:58:15,909 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 18:58:15,910 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 18:58:15,912 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 18:58:15,912 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 18:58:15,912 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 18:58:15,913 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 18:58:15,913 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 18:58:15,913 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 18:58:15,913 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 18:58:15,914 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 18:58:15,915 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 18:58:15,915 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 18:58:15,915 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 18:58:15,916 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 18:58:15,916 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 18:58:15,917 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 18:58:15,917 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 18:58:15,917 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 18:58:15,918 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 18:58:15,918 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 18:58:15,918 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 18:58:15,918 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 18:58:15,919 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 18:58:15,919 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 18:58:15,919 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 18:58:15,919 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 18:58:15,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 18:58:15,920 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 18:58:15,920 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 18:58:15,921 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 63b48aee14c7431a4aa25f8de4f2dd8129d50ad4 [2020-07-28 18:58:16,357 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 18:58:16,374 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 18:58:16,378 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 18:58:16,380 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 18:58:16,381 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 18:58:16,382 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product43.cil.c [2020-07-28 18:58:16,460 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6600c5343/9a1f59a80e5844888811ece1db98d5f6/FLAGb908f7ca4 [2020-07-28 18:58:16,977 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 18:58:16,978 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product43.cil.c [2020-07-28 18:58:17,002 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6600c5343/9a1f59a80e5844888811ece1db98d5f6/FLAGb908f7ca4 [2020-07-28 18:58:17,323 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6600c5343/9a1f59a80e5844888811ece1db98d5f6 [2020-07-28 18:58:17,327 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 18:58:17,329 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 18:58:17,331 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 18:58:17,331 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 18:58:17,334 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 18:58:17,336 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 06:58:17" (1/1) ... [2020-07-28 18:58:17,339 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48cce525 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:58:17, skipping insertion in model container [2020-07-28 18:58:17,340 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 06:58:17" (1/1) ... [2020-07-28 18:58:17,348 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 18:58:17,412 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 18:58:17,904 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 18:58:17,919 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 18:58:18,049 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 18:58:18,088 INFO L208 MainTranslator]: Completed translation [2020-07-28 18:58:18,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:58:18 WrapperNode [2020-07-28 18:58:18,089 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 18:58:18,090 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 18:58:18,090 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 18:58:18,090 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 18:58:18,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:58:18" (1/1) ... [2020-07-28 18:58:18,120 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:58:18" (1/1) ... [2020-07-28 18:58:18,184 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 18:58:18,184 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 18:58:18,184 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 18:58:18,184 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 18:58:18,195 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:58:18" (1/1) ... [2020-07-28 18:58:18,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:58:18" (1/1) ... [2020-07-28 18:58:18,201 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:58:18" (1/1) ... [2020-07-28 18:58:18,202 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:58:18" (1/1) ... [2020-07-28 18:58:18,218 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:58:18" (1/1) ... [2020-07-28 18:58:18,227 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:58:18" (1/1) ... [2020-07-28 18:58:18,230 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:58:18" (1/1) ... [2020-07-28 18:58:18,236 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 18:58:18,236 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 18:58:18,236 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 18:58:18,237 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 18:58:18,238 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:58:18" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-07-28 18:58:18,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 18:58:18,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-28 18:58:18,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 18:58:18,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 18:58:19,762 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 18:58:19,763 INFO L295 CfgBuilder]: Removed 118 assume(true) statements. [2020-07-28 18:58:19,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 06:58:19 BoogieIcfgContainer [2020-07-28 18:58:19,771 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 18:58:19,773 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 18:58:19,775 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 18:58:19,779 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 18:58:19,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 06:58:17" (1/3) ... [2020-07-28 18:58:19,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@201ed1a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 06:58:19, skipping insertion in model container [2020-07-28 18:58:19,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:58:18" (2/3) ... [2020-07-28 18:58:19,782 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@201ed1a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 06:58:19, skipping insertion in model container [2020-07-28 18:58:19,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 06:58:19" (3/3) ... [2020-07-28 18:58:19,784 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product43.cil.c [2020-07-28 18:58:19,794 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 18:58:19,801 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-07-28 18:58:19,816 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-07-28 18:58:19,845 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 18:58:19,845 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 18:58:19,845 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 18:58:19,845 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 18:58:19,846 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 18:58:19,846 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 18:58:19,846 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 18:58:19,846 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 18:58:19,874 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states. [2020-07-28 18:58:19,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-07-28 18:58:19,882 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:58:19,883 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 18:58:19,884 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:58:19,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:58:19,891 INFO L82 PathProgramCache]: Analyzing trace with hash 929673937, now seen corresponding path program 1 times [2020-07-28 18:58:19,900 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:58:19,901 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791586050] [2020-07-28 18:58:19,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:58:20,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:58:20,213 INFO L280 TraceCheckUtils]: 0: Hoare triple {92#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; {92#true} is VALID [2020-07-28 18:58:20,214 INFO L280 TraceCheckUtils]: 1: Hoare triple {92#true} havoc main_#res;havoc main_#t~ret36, main_~retValue_acc~6, main_~tmp~5;havoc main_~retValue_acc~6;havoc main_~tmp~5; {92#true} is VALID [2020-07-28 18:58:20,214 INFO L280 TraceCheckUtils]: 2: Hoare triple {92#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; {92#true} is VALID [2020-07-28 18:58:20,215 INFO L280 TraceCheckUtils]: 3: Hoare triple {92#true} main_#t~ret36 := valid_product_#res;assume -2147483648 <= main_#t~ret36 && main_#t~ret36 <= 2147483647;main_~tmp~5 := main_#t~ret36;havoc main_#t~ret36; {92#true} is VALID [2020-07-28 18:58:20,215 INFO L280 TraceCheckUtils]: 4: Hoare triple {92#true} assume 0 != main_~tmp~5; {92#true} is VALID [2020-07-28 18:58:20,216 INFO L280 TraceCheckUtils]: 5: Hoare triple {92#true} havoc test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {92#true} is VALID [2020-07-28 18:58:20,217 INFO L280 TraceCheckUtils]: 6: Hoare triple {92#true} assume false; {93#false} is VALID [2020-07-28 18:58:20,217 INFO L280 TraceCheckUtils]: 7: Hoare triple {93#false} havoc cleanup_~i~0, cleanup_~__cil_tmp2~0;havoc cleanup_~i~0;havoc cleanup_~__cil_tmp2~0; {93#false} is VALID [2020-07-28 18:58:20,218 INFO L280 TraceCheckUtils]: 8: Hoare triple {93#false} assume !(0 != ~pumpRunning~0); {93#false} is VALID [2020-07-28 18:58:20,218 INFO L280 TraceCheckUtils]: 9: Hoare triple {93#false} assume !(0 != ~systemActive~0); {93#false} is VALID [2020-07-28 18:58:20,219 INFO L280 TraceCheckUtils]: 10: Hoare triple {93#false} havoc __utac_acc__Specification1_spec__1_#t~ret34, __utac_acc__Specification1_spec__1_#t~ret35, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; {93#false} is VALID [2020-07-28 18:58:20,219 INFO L280 TraceCheckUtils]: 11: Hoare triple {93#false} __utac_acc__Specification1_spec__1_#t~ret34 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret34 && __utac_acc__Specification1_spec__1_#t~ret34 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret34;havoc __utac_acc__Specification1_spec__1_#t~ret34; {93#false} is VALID [2020-07-28 18:58:20,219 INFO L280 TraceCheckUtils]: 12: Hoare triple {93#false} assume 0 != __utac_acc__Specification1_spec__1_~tmp~4;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; {93#false} is VALID [2020-07-28 18:58:20,220 INFO L280 TraceCheckUtils]: 13: Hoare triple {93#false} __utac_acc__Specification1_spec__1_#t~ret35 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret35 && __utac_acc__Specification1_spec__1_#t~ret35 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp___0~2 := __utac_acc__Specification1_spec__1_#t~ret35;havoc __utac_acc__Specification1_spec__1_#t~ret35; {93#false} is VALID [2020-07-28 18:58:20,220 INFO L280 TraceCheckUtils]: 14: Hoare triple {93#false} assume 0 != __utac_acc__Specification1_spec__1_~tmp___0~2; {93#false} is VALID [2020-07-28 18:58:20,221 INFO L280 TraceCheckUtils]: 15: Hoare triple {93#false} assume !false; {93#false} is VALID [2020-07-28 18:58:20,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:58:20,226 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791586050] [2020-07-28 18:58:20,227 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:58:20,227 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 18:58:20,228 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950782966] [2020-07-28 18:58:20,235 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-07-28 18:58:20,237 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:58:20,241 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 18:58:20,287 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 16 edges. 16 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:58:20,287 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 18:58:20,287 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:58:20,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 18:58:20,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 18:58:20,301 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 2 states. [2020-07-28 18:58:20,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:20,638 INFO L93 Difference]: Finished difference Result 172 states and 257 transitions. [2020-07-28 18:58:20,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 18:58:20,638 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-07-28 18:58:20,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:58:20,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 18:58:20,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 257 transitions. [2020-07-28 18:58:20,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 18:58:20,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 257 transitions. [2020-07-28 18:58:20,656 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 257 transitions. [2020-07-28 18:58:20,983 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 257 edges. 257 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:58:20,999 INFO L225 Difference]: With dead ends: 172 [2020-07-28 18:58:20,999 INFO L226 Difference]: Without dead ends: 85 [2020-07-28 18:58:21,004 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 18:58:21,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-07-28 18:58:21,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-07-28 18:58:21,059 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:58:21,060 INFO L82 GeneralOperation]: Start isEquivalent. First operand 85 states. Second operand 85 states. [2020-07-28 18:58:21,061 INFO L74 IsIncluded]: Start isIncluded. First operand 85 states. Second operand 85 states. [2020-07-28 18:58:21,061 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 85 states. [2020-07-28 18:58:21,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:21,069 INFO L93 Difference]: Finished difference Result 85 states and 120 transitions. [2020-07-28 18:58:21,069 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 120 transitions. [2020-07-28 18:58:21,070 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:21,071 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:21,071 INFO L74 IsIncluded]: Start isIncluded. First operand 85 states. Second operand 85 states. [2020-07-28 18:58:21,071 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 85 states. [2020-07-28 18:58:21,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:21,079 INFO L93 Difference]: Finished difference Result 85 states and 120 transitions. [2020-07-28 18:58:21,079 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 120 transitions. [2020-07-28 18:58:21,080 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:21,081 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:21,081 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:58:21,081 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:58:21,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-07-28 18:58:21,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 120 transitions. [2020-07-28 18:58:21,089 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 120 transitions. Word has length 16 [2020-07-28 18:58:21,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:58:21,090 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 120 transitions. [2020-07-28 18:58:21,090 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 18:58:21,090 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 120 transitions. [2020-07-28 18:58:21,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-28 18:58:21,092 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:58:21,092 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 18:58:21,092 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 18:58:21,093 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:58:21,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:58:21,094 INFO L82 PathProgramCache]: Analyzing trace with hash -117082960, now seen corresponding path program 1 times [2020-07-28 18:58:21,094 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:58:21,094 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587875889] [2020-07-28 18:58:21,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:58:21,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:58:21,254 INFO L280 TraceCheckUtils]: 0: Hoare triple {632#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; {632#true} is VALID [2020-07-28 18:58:21,255 INFO L280 TraceCheckUtils]: 1: Hoare triple {632#true} havoc main_#res;havoc main_#t~ret36, main_~retValue_acc~6, main_~tmp~5;havoc main_~retValue_acc~6;havoc main_~tmp~5; {632#true} is VALID [2020-07-28 18:58:21,255 INFO L280 TraceCheckUtils]: 2: Hoare triple {632#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; {632#true} is VALID [2020-07-28 18:58:21,256 INFO L280 TraceCheckUtils]: 3: Hoare triple {632#true} main_#t~ret36 := valid_product_#res;assume -2147483648 <= main_#t~ret36 && main_#t~ret36 <= 2147483647;main_~tmp~5 := main_#t~ret36;havoc main_#t~ret36; {632#true} is VALID [2020-07-28 18:58:21,256 INFO L280 TraceCheckUtils]: 4: Hoare triple {632#true} assume 0 != main_~tmp~5; {632#true} is VALID [2020-07-28 18:58:21,258 INFO L280 TraceCheckUtils]: 5: Hoare triple {632#true} havoc test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {634#(= 0 ULTIMATE.start_test_~splverifierCounter~0)} is VALID [2020-07-28 18:58:21,259 INFO L280 TraceCheckUtils]: 6: Hoare triple {634#(= 0 ULTIMATE.start_test_~splverifierCounter~0)} assume !false; {634#(= 0 ULTIMATE.start_test_~splverifierCounter~0)} is VALID [2020-07-28 18:58:21,260 INFO L280 TraceCheckUtils]: 7: Hoare triple {634#(= 0 ULTIMATE.start_test_~splverifierCounter~0)} assume !(test_~splverifierCounter~0 < 4); {633#false} is VALID [2020-07-28 18:58:21,260 INFO L280 TraceCheckUtils]: 8: Hoare triple {633#false} havoc cleanup_~i~0, cleanup_~__cil_tmp2~0;havoc cleanup_~i~0;havoc cleanup_~__cil_tmp2~0; {633#false} is VALID [2020-07-28 18:58:21,261 INFO L280 TraceCheckUtils]: 9: Hoare triple {633#false} assume !(0 != ~pumpRunning~0); {633#false} is VALID [2020-07-28 18:58:21,261 INFO L280 TraceCheckUtils]: 10: Hoare triple {633#false} assume !(0 != ~systemActive~0); {633#false} is VALID [2020-07-28 18:58:21,261 INFO L280 TraceCheckUtils]: 11: Hoare triple {633#false} havoc __utac_acc__Specification1_spec__1_#t~ret34, __utac_acc__Specification1_spec__1_#t~ret35, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; {633#false} is VALID [2020-07-28 18:58:21,262 INFO L280 TraceCheckUtils]: 12: Hoare triple {633#false} __utac_acc__Specification1_spec__1_#t~ret34 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret34 && __utac_acc__Specification1_spec__1_#t~ret34 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret34;havoc __utac_acc__Specification1_spec__1_#t~ret34; {633#false} is VALID [2020-07-28 18:58:21,262 INFO L280 TraceCheckUtils]: 13: Hoare triple {633#false} assume 0 != __utac_acc__Specification1_spec__1_~tmp~4;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; {633#false} is VALID [2020-07-28 18:58:21,263 INFO L280 TraceCheckUtils]: 14: Hoare triple {633#false} __utac_acc__Specification1_spec__1_#t~ret35 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret35 && __utac_acc__Specification1_spec__1_#t~ret35 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp___0~2 := __utac_acc__Specification1_spec__1_#t~ret35;havoc __utac_acc__Specification1_spec__1_#t~ret35; {633#false} is VALID [2020-07-28 18:58:21,263 INFO L280 TraceCheckUtils]: 15: Hoare triple {633#false} assume 0 != __utac_acc__Specification1_spec__1_~tmp___0~2; {633#false} is VALID [2020-07-28 18:58:21,264 INFO L280 TraceCheckUtils]: 16: Hoare triple {633#false} assume !false; {633#false} is VALID [2020-07-28 18:58:21,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:58:21,267 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587875889] [2020-07-28 18:58:21,268 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:58:21,268 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 18:58:21,268 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342687750] [2020-07-28 18:58:21,270 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-07-28 18:58:21,270 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:58:21,271 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 18:58:21,299 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:58:21,299 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 18:58:21,299 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:58:21,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 18:58:21,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 18:58:21,300 INFO L87 Difference]: Start difference. First operand 85 states and 120 transitions. Second operand 3 states. [2020-07-28 18:58:21,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:21,539 INFO L93 Difference]: Finished difference Result 85 states and 120 transitions. [2020-07-28 18:58:21,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 18:58:21,539 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-07-28 18:58:21,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:58:21,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 18:58:21,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 120 transitions. [2020-07-28 18:58:21,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 18:58:21,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 120 transitions. [2020-07-28 18:58:21,545 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 120 transitions. [2020-07-28 18:58:21,728 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 120 edges. 120 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:58:21,731 INFO L225 Difference]: With dead ends: 85 [2020-07-28 18:58:21,731 INFO L226 Difference]: Without dead ends: 39 [2020-07-28 18:58:21,732 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 18:58:21,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-07-28 18:58:21,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-07-28 18:58:21,749 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:58:21,749 INFO L82 GeneralOperation]: Start isEquivalent. First operand 39 states. Second operand 39 states. [2020-07-28 18:58:21,750 INFO L74 IsIncluded]: Start isIncluded. First operand 39 states. Second operand 39 states. [2020-07-28 18:58:21,750 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 39 states. [2020-07-28 18:58:21,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:21,751 INFO L93 Difference]: Finished difference Result 39 states and 55 transitions. [2020-07-28 18:58:21,752 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 55 transitions. [2020-07-28 18:58:21,752 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:21,752 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:21,752 INFO L74 IsIncluded]: Start isIncluded. First operand 39 states. Second operand 39 states. [2020-07-28 18:58:21,752 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 39 states. [2020-07-28 18:58:21,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:21,754 INFO L93 Difference]: Finished difference Result 39 states and 55 transitions. [2020-07-28 18:58:21,755 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 55 transitions. [2020-07-28 18:58:21,755 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:21,755 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:21,755 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:58:21,756 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:58:21,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-07-28 18:58:21,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 55 transitions. [2020-07-28 18:58:21,758 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 55 transitions. Word has length 17 [2020-07-28 18:58:21,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:58:21,758 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 55 transitions. [2020-07-28 18:58:21,758 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 18:58:21,758 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 55 transitions. [2020-07-28 18:58:21,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-07-28 18:58:21,759 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:58:21,759 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] [2020-07-28 18:58:21,760 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 18:58:21,760 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:58:21,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:58:21,760 INFO L82 PathProgramCache]: Analyzing trace with hash 337421565, now seen corresponding path program 1 times [2020-07-28 18:58:21,761 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:58:21,761 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253754758] [2020-07-28 18:58:21,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:58:21,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:58:21,905 INFO L280 TraceCheckUtils]: 0: Hoare triple {891#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; {893#(= 1 ~systemActive~0)} is VALID [2020-07-28 18:58:21,906 INFO L280 TraceCheckUtils]: 1: Hoare triple {893#(= 1 ~systemActive~0)} havoc main_#res;havoc main_#t~ret36, main_~retValue_acc~6, main_~tmp~5;havoc main_~retValue_acc~6;havoc main_~tmp~5; {893#(= 1 ~systemActive~0)} is VALID [2020-07-28 18:58:21,907 INFO L280 TraceCheckUtils]: 2: Hoare triple {893#(= 1 ~systemActive~0)} havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; {894#(= |ULTIMATE.start_valid_product_#res| ~systemActive~0)} is VALID [2020-07-28 18:58:21,908 INFO L280 TraceCheckUtils]: 3: Hoare triple {894#(= |ULTIMATE.start_valid_product_#res| ~systemActive~0)} main_#t~ret36 := valid_product_#res;assume -2147483648 <= main_#t~ret36 && main_#t~ret36 <= 2147483647;main_~tmp~5 := main_#t~ret36;havoc main_#t~ret36; {895#(= ULTIMATE.start_main_~tmp~5 ~systemActive~0)} is VALID [2020-07-28 18:58:21,909 INFO L280 TraceCheckUtils]: 4: Hoare triple {895#(= ULTIMATE.start_main_~tmp~5 ~systemActive~0)} assume 0 != main_~tmp~5; {896#(not (= 0 ~systemActive~0))} is VALID [2020-07-28 18:58:21,910 INFO L280 TraceCheckUtils]: 5: Hoare triple {896#(not (= 0 ~systemActive~0))} havoc test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {896#(not (= 0 ~systemActive~0))} is VALID [2020-07-28 18:58:21,911 INFO L280 TraceCheckUtils]: 6: Hoare triple {896#(not (= 0 ~systemActive~0))} assume !false; {896#(not (= 0 ~systemActive~0))} is VALID [2020-07-28 18:58:21,911 INFO L280 TraceCheckUtils]: 7: Hoare triple {896#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0 < 4; {896#(not (= 0 ~systemActive~0))} is VALID [2020-07-28 18:58:21,912 INFO L280 TraceCheckUtils]: 8: Hoare triple {896#(not (= 0 ~systemActive~0))} assume -2147483648 <= test_#t~nondet30 && test_#t~nondet30 <= 2147483647;test_~tmp~3 := test_#t~nondet30;havoc test_#t~nondet30; {896#(not (= 0 ~systemActive~0))} is VALID [2020-07-28 18:58:21,913 INFO L280 TraceCheckUtils]: 9: Hoare triple {896#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~3); {896#(not (= 0 ~systemActive~0))} is VALID [2020-07-28 18:58:21,913 INFO L280 TraceCheckUtils]: 10: Hoare triple {896#(not (= 0 ~systemActive~0))} assume -2147483648 <= test_#t~nondet31 && test_#t~nondet31 <= 2147483647;test_~tmp___0~1 := test_#t~nondet31;havoc test_#t~nondet31; {896#(not (= 0 ~systemActive~0))} is VALID [2020-07-28 18:58:21,914 INFO L280 TraceCheckUtils]: 11: Hoare triple {896#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~1); {896#(not (= 0 ~systemActive~0))} is VALID [2020-07-28 18:58:21,915 INFO L280 TraceCheckUtils]: 12: Hoare triple {896#(not (= 0 ~systemActive~0))} assume -2147483648 <= test_#t~nondet32 && test_#t~nondet32 <= 2147483647;test_~tmp___2~0 := test_#t~nondet32;havoc test_#t~nondet32; {896#(not (= 0 ~systemActive~0))} is VALID [2020-07-28 18:58:21,916 INFO L280 TraceCheckUtils]: 13: Hoare triple {896#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0; {896#(not (= 0 ~systemActive~0))} is VALID [2020-07-28 18:58:21,916 INFO L280 TraceCheckUtils]: 14: Hoare triple {896#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {896#(not (= 0 ~systemActive~0))} is VALID [2020-07-28 18:58:21,917 INFO L280 TraceCheckUtils]: 15: Hoare triple {896#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {892#false} is VALID [2020-07-28 18:58:21,917 INFO L280 TraceCheckUtils]: 16: Hoare triple {892#false} havoc __utac_acc__Specification1_spec__1_#t~ret34, __utac_acc__Specification1_spec__1_#t~ret35, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; {892#false} is VALID [2020-07-28 18:58:21,918 INFO L280 TraceCheckUtils]: 17: Hoare triple {892#false} __utac_acc__Specification1_spec__1_#t~ret34 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret34 && __utac_acc__Specification1_spec__1_#t~ret34 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret34;havoc __utac_acc__Specification1_spec__1_#t~ret34; {892#false} is VALID [2020-07-28 18:58:21,918 INFO L280 TraceCheckUtils]: 18: Hoare triple {892#false} assume 0 != __utac_acc__Specification1_spec__1_~tmp~4;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; {892#false} is VALID [2020-07-28 18:58:21,918 INFO L280 TraceCheckUtils]: 19: Hoare triple {892#false} __utac_acc__Specification1_spec__1_#t~ret35 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret35 && __utac_acc__Specification1_spec__1_#t~ret35 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp___0~2 := __utac_acc__Specification1_spec__1_#t~ret35;havoc __utac_acc__Specification1_spec__1_#t~ret35; {892#false} is VALID [2020-07-28 18:58:21,919 INFO L280 TraceCheckUtils]: 20: Hoare triple {892#false} assume 0 != __utac_acc__Specification1_spec__1_~tmp___0~2; {892#false} is VALID [2020-07-28 18:58:21,919 INFO L280 TraceCheckUtils]: 21: Hoare triple {892#false} assume !false; {892#false} is VALID [2020-07-28 18:58:21,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:58:21,921 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253754758] [2020-07-28 18:58:21,922 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:58:21,922 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-28 18:58:21,922 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663144072] [2020-07-28 18:58:21,923 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2020-07-28 18:58:21,923 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:58:21,923 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-28 18:58:21,953 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:58:21,954 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-28 18:58:21,954 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:58:21,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-28 18:58:21,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-28 18:58:21,955 INFO L87 Difference]: Start difference. First operand 39 states and 55 transitions. Second operand 6 states. [2020-07-28 18:58:22,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:22,644 INFO L93 Difference]: Finished difference Result 128 states and 187 transitions. [2020-07-28 18:58:22,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-28 18:58:22,645 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2020-07-28 18:58:22,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:58:22,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 18:58:22,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 187 transitions. [2020-07-28 18:58:22,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 18:58:22,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 187 transitions. [2020-07-28 18:58:22,651 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 187 transitions. [2020-07-28 18:58:22,891 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 187 edges. 187 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:58:22,895 INFO L225 Difference]: With dead ends: 128 [2020-07-28 18:58:22,895 INFO L226 Difference]: Without dead ends: 95 [2020-07-28 18:58:22,896 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-28 18:58:22,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-07-28 18:58:22,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 58. [2020-07-28 18:58:22,963 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:58:22,964 INFO L82 GeneralOperation]: Start isEquivalent. First operand 95 states. Second operand 58 states. [2020-07-28 18:58:22,964 INFO L74 IsIncluded]: Start isIncluded. First operand 95 states. Second operand 58 states. [2020-07-28 18:58:22,964 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 58 states. [2020-07-28 18:58:22,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:22,968 INFO L93 Difference]: Finished difference Result 95 states and 136 transitions. [2020-07-28 18:58:22,968 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 136 transitions. [2020-07-28 18:58:22,969 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:22,970 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:22,970 INFO L74 IsIncluded]: Start isIncluded. First operand 58 states. Second operand 95 states. [2020-07-28 18:58:22,970 INFO L87 Difference]: Start difference. First operand 58 states. Second operand 95 states. [2020-07-28 18:58:22,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:22,974 INFO L93 Difference]: Finished difference Result 95 states and 136 transitions. [2020-07-28 18:58:22,975 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 136 transitions. [2020-07-28 18:58:22,975 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:22,976 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:22,976 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:58:22,976 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:58:22,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-07-28 18:58:22,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 84 transitions. [2020-07-28 18:58:22,979 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 84 transitions. Word has length 22 [2020-07-28 18:58:22,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:58:22,979 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 84 transitions. [2020-07-28 18:58:22,979 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-28 18:58:22,979 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 84 transitions. [2020-07-28 18:58:22,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-07-28 18:58:22,980 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:58:22,980 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] [2020-07-28 18:58:22,980 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-28 18:58:22,981 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:58:22,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:58:22,981 INFO L82 PathProgramCache]: Analyzing trace with hash -1224569535, now seen corresponding path program 1 times [2020-07-28 18:58:22,981 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:58:22,982 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691271771] [2020-07-28 18:58:22,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:58:23,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:58:23,064 INFO L280 TraceCheckUtils]: 0: Hoare triple {1354#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; {1356#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:23,065 INFO L280 TraceCheckUtils]: 1: Hoare triple {1356#(= 0 ~pumpRunning~0)} havoc main_#res;havoc main_#t~ret36, main_~retValue_acc~6, main_~tmp~5;havoc main_~retValue_acc~6;havoc main_~tmp~5; {1356#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:23,065 INFO L280 TraceCheckUtils]: 2: Hoare triple {1356#(= 0 ~pumpRunning~0)} havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; {1356#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:23,066 INFO L280 TraceCheckUtils]: 3: Hoare triple {1356#(= 0 ~pumpRunning~0)} main_#t~ret36 := valid_product_#res;assume -2147483648 <= main_#t~ret36 && main_#t~ret36 <= 2147483647;main_~tmp~5 := main_#t~ret36;havoc main_#t~ret36; {1356#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:23,066 INFO L280 TraceCheckUtils]: 4: Hoare triple {1356#(= 0 ~pumpRunning~0)} assume 0 != main_~tmp~5; {1356#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:23,067 INFO L280 TraceCheckUtils]: 5: Hoare triple {1356#(= 0 ~pumpRunning~0)} havoc test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {1356#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:23,069 INFO L280 TraceCheckUtils]: 6: Hoare triple {1356#(= 0 ~pumpRunning~0)} assume !false; {1356#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:23,071 INFO L280 TraceCheckUtils]: 7: Hoare triple {1356#(= 0 ~pumpRunning~0)} assume test_~splverifierCounter~0 < 4; {1356#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:23,072 INFO L280 TraceCheckUtils]: 8: Hoare triple {1356#(= 0 ~pumpRunning~0)} assume -2147483648 <= test_#t~nondet30 && test_#t~nondet30 <= 2147483647;test_~tmp~3 := test_#t~nondet30;havoc test_#t~nondet30; {1356#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:23,073 INFO L280 TraceCheckUtils]: 9: Hoare triple {1356#(= 0 ~pumpRunning~0)} assume !(0 != test_~tmp~3); {1356#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:23,074 INFO L280 TraceCheckUtils]: 10: Hoare triple {1356#(= 0 ~pumpRunning~0)} assume -2147483648 <= test_#t~nondet31 && test_#t~nondet31 <= 2147483647;test_~tmp___0~1 := test_#t~nondet31;havoc test_#t~nondet31; {1356#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:23,075 INFO L280 TraceCheckUtils]: 11: Hoare triple {1356#(= 0 ~pumpRunning~0)} assume !(0 != test_~tmp___0~1); {1356#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:23,076 INFO L280 TraceCheckUtils]: 12: Hoare triple {1356#(= 0 ~pumpRunning~0)} assume -2147483648 <= test_#t~nondet32 && test_#t~nondet32 <= 2147483647;test_~tmp___2~0 := test_#t~nondet32;havoc test_#t~nondet32; {1356#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:23,077 INFO L280 TraceCheckUtils]: 13: Hoare triple {1356#(= 0 ~pumpRunning~0)} assume 0 != test_~tmp___2~0; {1356#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:23,078 INFO L280 TraceCheckUtils]: 14: Hoare triple {1356#(= 0 ~pumpRunning~0)} assume !(0 != ~pumpRunning~0); {1356#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:23,079 INFO L280 TraceCheckUtils]: 15: Hoare triple {1356#(= 0 ~pumpRunning~0)} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret10, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; {1356#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:23,080 INFO L280 TraceCheckUtils]: 16: Hoare triple {1356#(= 0 ~pumpRunning~0)} assume !(0 == ~pumpRunning~0); {1355#false} is VALID [2020-07-28 18:58:23,080 INFO L280 TraceCheckUtils]: 17: Hoare triple {1355#false} havoc __utac_acc__Specification1_spec__1_#t~ret34, __utac_acc__Specification1_spec__1_#t~ret35, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; {1355#false} is VALID [2020-07-28 18:58:23,080 INFO L280 TraceCheckUtils]: 18: Hoare triple {1355#false} __utac_acc__Specification1_spec__1_#t~ret34 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret34 && __utac_acc__Specification1_spec__1_#t~ret34 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret34;havoc __utac_acc__Specification1_spec__1_#t~ret34; {1355#false} is VALID [2020-07-28 18:58:23,081 INFO L280 TraceCheckUtils]: 19: Hoare triple {1355#false} assume 0 != __utac_acc__Specification1_spec__1_~tmp~4;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; {1355#false} is VALID [2020-07-28 18:58:23,081 INFO L280 TraceCheckUtils]: 20: Hoare triple {1355#false} __utac_acc__Specification1_spec__1_#t~ret35 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret35 && __utac_acc__Specification1_spec__1_#t~ret35 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp___0~2 := __utac_acc__Specification1_spec__1_#t~ret35;havoc __utac_acc__Specification1_spec__1_#t~ret35; {1355#false} is VALID [2020-07-28 18:58:23,081 INFO L280 TraceCheckUtils]: 21: Hoare triple {1355#false} assume 0 != __utac_acc__Specification1_spec__1_~tmp___0~2; {1355#false} is VALID [2020-07-28 18:58:23,081 INFO L280 TraceCheckUtils]: 22: Hoare triple {1355#false} assume !false; {1355#false} is VALID [2020-07-28 18:58:23,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:58:23,083 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691271771] [2020-07-28 18:58:23,083 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:58:23,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 18:58:23,084 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248951957] [2020-07-28 18:58:23,084 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-07-28 18:58:23,085 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:58:23,085 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 18:58:23,117 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:58:23,117 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 18:58:23,117 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:58:23,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 18:58:23,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 18:58:23,118 INFO L87 Difference]: Start difference. First operand 58 states and 84 transitions. Second operand 3 states. [2020-07-28 18:58:23,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:23,381 INFO L93 Difference]: Finished difference Result 131 states and 192 transitions. [2020-07-28 18:58:23,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 18:58:23,382 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-07-28 18:58:23,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:58:23,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 18:58:23,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 136 transitions. [2020-07-28 18:58:23,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 18:58:23,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 136 transitions. [2020-07-28 18:58:23,386 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 136 transitions. [2020-07-28 18:58:23,538 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 136 edges. 136 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:58:23,542 INFO L225 Difference]: With dead ends: 131 [2020-07-28 18:58:23,542 INFO L226 Difference]: Without dead ends: 79 [2020-07-28 18:58:23,543 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 18:58:23,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-07-28 18:58:23,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 77. [2020-07-28 18:58:23,630 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:58:23,630 INFO L82 GeneralOperation]: Start isEquivalent. First operand 79 states. Second operand 77 states. [2020-07-28 18:58:23,630 INFO L74 IsIncluded]: Start isIncluded. First operand 79 states. Second operand 77 states. [2020-07-28 18:58:23,630 INFO L87 Difference]: Start difference. First operand 79 states. Second operand 77 states. [2020-07-28 18:58:23,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:23,634 INFO L93 Difference]: Finished difference Result 79 states and 110 transitions. [2020-07-28 18:58:23,634 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 110 transitions. [2020-07-28 18:58:23,635 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:23,635 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:23,635 INFO L74 IsIncluded]: Start isIncluded. First operand 77 states. Second operand 79 states. [2020-07-28 18:58:23,635 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 79 states. [2020-07-28 18:58:23,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:23,639 INFO L93 Difference]: Finished difference Result 79 states and 110 transitions. [2020-07-28 18:58:23,639 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 110 transitions. [2020-07-28 18:58:23,640 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:23,640 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:23,640 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:58:23,640 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:58:23,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-07-28 18:58:23,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 109 transitions. [2020-07-28 18:58:23,644 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 109 transitions. Word has length 23 [2020-07-28 18:58:23,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:58:23,644 INFO L479 AbstractCegarLoop]: Abstraction has 77 states and 109 transitions. [2020-07-28 18:58:23,645 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 18:58:23,645 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 109 transitions. [2020-07-28 18:58:23,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-28 18:58:23,646 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:58:23,646 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] [2020-07-28 18:58:23,646 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-28 18:58:23,646 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:58:23,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:58:23,647 INFO L82 PathProgramCache]: Analyzing trace with hash -840484654, now seen corresponding path program 1 times [2020-07-28 18:58:23,647 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:58:23,648 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284909147] [2020-07-28 18:58:23,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:58:23,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:58:23,758 INFO L280 TraceCheckUtils]: 0: Hoare triple {1810#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; {1812#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:23,759 INFO L280 TraceCheckUtils]: 1: Hoare triple {1812#(= 0 ~methaneLevelCritical~0)} havoc main_#res;havoc main_#t~ret36, main_~retValue_acc~6, main_~tmp~5;havoc main_~retValue_acc~6;havoc main_~tmp~5; {1812#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:23,759 INFO L280 TraceCheckUtils]: 2: Hoare triple {1812#(= 0 ~methaneLevelCritical~0)} havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; {1812#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:23,760 INFO L280 TraceCheckUtils]: 3: Hoare triple {1812#(= 0 ~methaneLevelCritical~0)} main_#t~ret36 := valid_product_#res;assume -2147483648 <= main_#t~ret36 && main_#t~ret36 <= 2147483647;main_~tmp~5 := main_#t~ret36;havoc main_#t~ret36; {1812#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:23,760 INFO L280 TraceCheckUtils]: 4: Hoare triple {1812#(= 0 ~methaneLevelCritical~0)} assume 0 != main_~tmp~5; {1812#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:23,761 INFO L280 TraceCheckUtils]: 5: Hoare triple {1812#(= 0 ~methaneLevelCritical~0)} havoc test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {1812#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:23,761 INFO L280 TraceCheckUtils]: 6: Hoare triple {1812#(= 0 ~methaneLevelCritical~0)} assume !false; {1812#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:23,762 INFO L280 TraceCheckUtils]: 7: Hoare triple {1812#(= 0 ~methaneLevelCritical~0)} assume test_~splverifierCounter~0 < 4; {1812#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:23,762 INFO L280 TraceCheckUtils]: 8: Hoare triple {1812#(= 0 ~methaneLevelCritical~0)} assume -2147483648 <= test_#t~nondet30 && test_#t~nondet30 <= 2147483647;test_~tmp~3 := test_#t~nondet30;havoc test_#t~nondet30; {1812#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:23,763 INFO L280 TraceCheckUtils]: 9: Hoare triple {1812#(= 0 ~methaneLevelCritical~0)} assume !(0 != test_~tmp~3); {1812#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:23,764 INFO L280 TraceCheckUtils]: 10: Hoare triple {1812#(= 0 ~methaneLevelCritical~0)} assume -2147483648 <= test_#t~nondet31 && test_#t~nondet31 <= 2147483647;test_~tmp___0~1 := test_#t~nondet31;havoc test_#t~nondet31; {1812#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:23,765 INFO L280 TraceCheckUtils]: 11: Hoare triple {1812#(= 0 ~methaneLevelCritical~0)} assume !(0 != test_~tmp___0~1); {1812#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:23,767 INFO L280 TraceCheckUtils]: 12: Hoare triple {1812#(= 0 ~methaneLevelCritical~0)} assume -2147483648 <= test_#t~nondet32 && test_#t~nondet32 <= 2147483647;test_~tmp___2~0 := test_#t~nondet32;havoc test_#t~nondet32; {1812#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:23,768 INFO L280 TraceCheckUtils]: 13: Hoare triple {1812#(= 0 ~methaneLevelCritical~0)} assume !(0 != test_~tmp___2~0);assume -2147483648 <= test_#t~nondet33 && test_#t~nondet33 <= 2147483647;test_~tmp___1~0 := test_#t~nondet33;havoc test_#t~nondet33; {1812#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:23,770 INFO L280 TraceCheckUtils]: 14: Hoare triple {1812#(= 0 ~methaneLevelCritical~0)} assume 0 != test_~tmp___1~0; {1812#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:23,773 INFO L280 TraceCheckUtils]: 15: Hoare triple {1812#(= 0 ~methaneLevelCritical~0)} assume !(0 != ~pumpRunning~0); {1812#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:23,774 INFO L280 TraceCheckUtils]: 16: Hoare triple {1812#(= 0 ~methaneLevelCritical~0)} ~systemActive~0 := 0; {1812#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:23,775 INFO L280 TraceCheckUtils]: 17: Hoare triple {1812#(= 0 ~methaneLevelCritical~0)} assume !(0 != ~pumpRunning~0); {1812#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:23,776 INFO L280 TraceCheckUtils]: 18: Hoare triple {1812#(= 0 ~methaneLevelCritical~0)} assume !(0 != ~systemActive~0); {1812#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:23,776 INFO L280 TraceCheckUtils]: 19: Hoare triple {1812#(= 0 ~methaneLevelCritical~0)} havoc __utac_acc__Specification1_spec__1_#t~ret34, __utac_acc__Specification1_spec__1_#t~ret35, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; {1813#(= 0 |ULTIMATE.start_isMethaneLevelCritical_#res|)} is VALID [2020-07-28 18:58:23,777 INFO L280 TraceCheckUtils]: 20: Hoare triple {1813#(= 0 |ULTIMATE.start_isMethaneLevelCritical_#res|)} __utac_acc__Specification1_spec__1_#t~ret34 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret34 && __utac_acc__Specification1_spec__1_#t~ret34 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret34;havoc __utac_acc__Specification1_spec__1_#t~ret34; {1814#(= ULTIMATE.start___utac_acc__Specification1_spec__1_~tmp~4 0)} is VALID [2020-07-28 18:58:23,778 INFO L280 TraceCheckUtils]: 21: Hoare triple {1814#(= ULTIMATE.start___utac_acc__Specification1_spec__1_~tmp~4 0)} assume 0 != __utac_acc__Specification1_spec__1_~tmp~4;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; {1811#false} is VALID [2020-07-28 18:58:23,778 INFO L280 TraceCheckUtils]: 22: Hoare triple {1811#false} __utac_acc__Specification1_spec__1_#t~ret35 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret35 && __utac_acc__Specification1_spec__1_#t~ret35 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp___0~2 := __utac_acc__Specification1_spec__1_#t~ret35;havoc __utac_acc__Specification1_spec__1_#t~ret35; {1811#false} is VALID [2020-07-28 18:58:23,778 INFO L280 TraceCheckUtils]: 23: Hoare triple {1811#false} assume 0 != __utac_acc__Specification1_spec__1_~tmp___0~2; {1811#false} is VALID [2020-07-28 18:58:23,778 INFO L280 TraceCheckUtils]: 24: Hoare triple {1811#false} assume !false; {1811#false} is VALID [2020-07-28 18:58:23,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:58:23,780 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284909147] [2020-07-28 18:58:23,780 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:58:23,780 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 18:58:23,780 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673757133] [2020-07-28 18:58:23,781 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-07-28 18:58:23,781 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:58:23,781 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 18:58:23,822 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:58:23,822 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 18:58:23,822 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:58:23,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 18:58:23,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-28 18:58:23,823 INFO L87 Difference]: Start difference. First operand 77 states and 109 transitions. Second operand 5 states. [2020-07-28 18:58:24,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:24,980 INFO L93 Difference]: Finished difference Result 371 states and 539 transitions. [2020-07-28 18:58:24,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-28 18:58:24,980 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-07-28 18:58:24,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:58:24,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 18:58:24,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 286 transitions. [2020-07-28 18:58:24,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 18:58:24,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 286 transitions. [2020-07-28 18:58:24,988 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states and 286 transitions. [2020-07-28 18:58:25,344 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 286 edges. 286 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:58:25,353 INFO L225 Difference]: With dead ends: 371 [2020-07-28 18:58:25,354 INFO L226 Difference]: Without dead ends: 300 [2020-07-28 18:58:25,355 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-28 18:58:25,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2020-07-28 18:58:25,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 140. [2020-07-28 18:58:25,570 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:58:25,570 INFO L82 GeneralOperation]: Start isEquivalent. First operand 300 states. Second operand 140 states. [2020-07-28 18:58:25,570 INFO L74 IsIncluded]: Start isIncluded. First operand 300 states. Second operand 140 states. [2020-07-28 18:58:25,571 INFO L87 Difference]: Start difference. First operand 300 states. Second operand 140 states. [2020-07-28 18:58:25,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:25,583 INFO L93 Difference]: Finished difference Result 300 states and 429 transitions. [2020-07-28 18:58:25,583 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 429 transitions. [2020-07-28 18:58:25,584 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:25,584 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:25,585 INFO L74 IsIncluded]: Start isIncluded. First operand 140 states. Second operand 300 states. [2020-07-28 18:58:25,585 INFO L87 Difference]: Start difference. First operand 140 states. Second operand 300 states. [2020-07-28 18:58:25,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:25,597 INFO L93 Difference]: Finished difference Result 300 states and 429 transitions. [2020-07-28 18:58:25,597 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 429 transitions. [2020-07-28 18:58:25,598 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:25,598 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:25,598 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:58:25,598 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:58:25,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-07-28 18:58:25,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 196 transitions. [2020-07-28 18:58:25,603 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 196 transitions. Word has length 25 [2020-07-28 18:58:25,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:58:25,603 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 196 transitions. [2020-07-28 18:58:25,604 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 18:58:25,604 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 196 transitions. [2020-07-28 18:58:25,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-28 18:58:25,604 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:58:25,605 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] [2020-07-28 18:58:25,605 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-28 18:58:25,605 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:58:25,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:58:25,605 INFO L82 PathProgramCache]: Analyzing trace with hash -1044291748, now seen corresponding path program 1 times [2020-07-28 18:58:25,606 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:58:25,606 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904325560] [2020-07-28 18:58:25,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:58:25,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:58:25,689 INFO L280 TraceCheckUtils]: 0: Hoare triple {3155#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; {3157#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:25,690 INFO L280 TraceCheckUtils]: 1: Hoare triple {3157#(= 0 ~pumpRunning~0)} havoc main_#res;havoc main_#t~ret36, main_~retValue_acc~6, main_~tmp~5;havoc main_~retValue_acc~6;havoc main_~tmp~5; {3157#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:25,691 INFO L280 TraceCheckUtils]: 2: Hoare triple {3157#(= 0 ~pumpRunning~0)} havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; {3157#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:25,692 INFO L280 TraceCheckUtils]: 3: Hoare triple {3157#(= 0 ~pumpRunning~0)} main_#t~ret36 := valid_product_#res;assume -2147483648 <= main_#t~ret36 && main_#t~ret36 <= 2147483647;main_~tmp~5 := main_#t~ret36;havoc main_#t~ret36; {3157#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:25,693 INFO L280 TraceCheckUtils]: 4: Hoare triple {3157#(= 0 ~pumpRunning~0)} assume 0 != main_~tmp~5; {3157#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:25,694 INFO L280 TraceCheckUtils]: 5: Hoare triple {3157#(= 0 ~pumpRunning~0)} havoc test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {3157#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:25,696 INFO L280 TraceCheckUtils]: 6: Hoare triple {3157#(= 0 ~pumpRunning~0)} assume !false; {3157#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:25,698 INFO L280 TraceCheckUtils]: 7: Hoare triple {3157#(= 0 ~pumpRunning~0)} assume test_~splverifierCounter~0 < 4; {3157#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:25,700 INFO L280 TraceCheckUtils]: 8: Hoare triple {3157#(= 0 ~pumpRunning~0)} assume -2147483648 <= test_#t~nondet30 && test_#t~nondet30 <= 2147483647;test_~tmp~3 := test_#t~nondet30;havoc test_#t~nondet30; {3157#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:25,702 INFO L280 TraceCheckUtils]: 9: Hoare triple {3157#(= 0 ~pumpRunning~0)} assume !(0 != test_~tmp~3); {3157#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:25,703 INFO L280 TraceCheckUtils]: 10: Hoare triple {3157#(= 0 ~pumpRunning~0)} assume -2147483648 <= test_#t~nondet31 && test_#t~nondet31 <= 2147483647;test_~tmp___0~1 := test_#t~nondet31;havoc test_#t~nondet31; {3157#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:25,704 INFO L280 TraceCheckUtils]: 11: Hoare triple {3157#(= 0 ~pumpRunning~0)} assume 0 != test_~tmp___0~1; {3157#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:25,705 INFO L280 TraceCheckUtils]: 12: Hoare triple {3157#(= 0 ~pumpRunning~0)} assume !(0 != ~methaneLevelCritical~0);~methaneLevelCritical~0 := 1; {3157#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:25,706 INFO L280 TraceCheckUtils]: 13: Hoare triple {3157#(= 0 ~pumpRunning~0)} assume -2147483648 <= test_#t~nondet32 && test_#t~nondet32 <= 2147483647;test_~tmp___2~0 := test_#t~nondet32;havoc test_#t~nondet32; {3157#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:25,706 INFO L280 TraceCheckUtils]: 14: Hoare triple {3157#(= 0 ~pumpRunning~0)} assume !(0 != test_~tmp___2~0);assume -2147483648 <= test_#t~nondet33 && test_#t~nondet33 <= 2147483647;test_~tmp___1~0 := test_#t~nondet33;havoc test_#t~nondet33; {3157#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:25,707 INFO L280 TraceCheckUtils]: 15: Hoare triple {3157#(= 0 ~pumpRunning~0)} assume 0 != test_~tmp___1~0; {3157#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:25,708 INFO L280 TraceCheckUtils]: 16: Hoare triple {3157#(= 0 ~pumpRunning~0)} assume !(0 != ~pumpRunning~0); {3157#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:25,708 INFO L280 TraceCheckUtils]: 17: Hoare triple {3157#(= 0 ~pumpRunning~0)} ~systemActive~0 := 0; {3157#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:25,709 INFO L280 TraceCheckUtils]: 18: Hoare triple {3157#(= 0 ~pumpRunning~0)} assume !(0 != ~pumpRunning~0); {3157#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:25,710 INFO L280 TraceCheckUtils]: 19: Hoare triple {3157#(= 0 ~pumpRunning~0)} assume !(0 != ~systemActive~0); {3157#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:25,711 INFO L280 TraceCheckUtils]: 20: Hoare triple {3157#(= 0 ~pumpRunning~0)} havoc __utac_acc__Specification1_spec__1_#t~ret34, __utac_acc__Specification1_spec__1_#t~ret35, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; {3157#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:25,711 INFO L280 TraceCheckUtils]: 21: Hoare triple {3157#(= 0 ~pumpRunning~0)} __utac_acc__Specification1_spec__1_#t~ret34 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret34 && __utac_acc__Specification1_spec__1_#t~ret34 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret34;havoc __utac_acc__Specification1_spec__1_#t~ret34; {3157#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:25,712 INFO L280 TraceCheckUtils]: 22: Hoare triple {3157#(= 0 ~pumpRunning~0)} assume 0 != __utac_acc__Specification1_spec__1_~tmp~4;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; {3158#(= 0 |ULTIMATE.start_isPumpRunning_#res|)} is VALID [2020-07-28 18:58:25,713 INFO L280 TraceCheckUtils]: 23: Hoare triple {3158#(= 0 |ULTIMATE.start_isPumpRunning_#res|)} __utac_acc__Specification1_spec__1_#t~ret35 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret35 && __utac_acc__Specification1_spec__1_#t~ret35 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp___0~2 := __utac_acc__Specification1_spec__1_#t~ret35;havoc __utac_acc__Specification1_spec__1_#t~ret35; {3159#(= 0 ULTIMATE.start___utac_acc__Specification1_spec__1_~tmp___0~2)} is VALID [2020-07-28 18:58:25,714 INFO L280 TraceCheckUtils]: 24: Hoare triple {3159#(= 0 ULTIMATE.start___utac_acc__Specification1_spec__1_~tmp___0~2)} assume 0 != __utac_acc__Specification1_spec__1_~tmp___0~2; {3156#false} is VALID [2020-07-28 18:58:25,715 INFO L280 TraceCheckUtils]: 25: Hoare triple {3156#false} assume !false; {3156#false} is VALID [2020-07-28 18:58:25,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:58:25,716 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904325560] [2020-07-28 18:58:25,717 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:58:25,717 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 18:58:25,717 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862460077] [2020-07-28 18:58:25,717 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-07-28 18:58:25,718 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:58:25,718 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 18:58:25,754 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 26 edges. 26 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:58:25,754 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 18:58:25,754 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:58:25,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 18:58:25,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-28 18:58:25,755 INFO L87 Difference]: Start difference. First operand 140 states and 196 transitions. Second operand 5 states. [2020-07-28 18:58:27,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:27,040 INFO L93 Difference]: Finished difference Result 392 states and 553 transitions. [2020-07-28 18:58:27,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-28 18:58:27,041 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-07-28 18:58:27,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:58:27,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 18:58:27,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 238 transitions. [2020-07-28 18:58:27,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 18:58:27,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 238 transitions. [2020-07-28 18:58:27,047 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 238 transitions. [2020-07-28 18:58:27,344 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 238 edges. 238 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:58:27,357 INFO L225 Difference]: With dead ends: 392 [2020-07-28 18:58:27,357 INFO L226 Difference]: Without dead ends: 390 [2020-07-28 18:58:27,358 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-28 18:58:27,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2020-07-28 18:58:27,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 140. [2020-07-28 18:58:27,657 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:58:27,658 INFO L82 GeneralOperation]: Start isEquivalent. First operand 390 states. Second operand 140 states. [2020-07-28 18:58:27,658 INFO L74 IsIncluded]: Start isIncluded. First operand 390 states. Second operand 140 states. [2020-07-28 18:58:27,658 INFO L87 Difference]: Start difference. First operand 390 states. Second operand 140 states. [2020-07-28 18:58:27,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:27,674 INFO L93 Difference]: Finished difference Result 390 states and 550 transitions. [2020-07-28 18:58:27,674 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 550 transitions. [2020-07-28 18:58:27,675 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:27,675 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:27,675 INFO L74 IsIncluded]: Start isIncluded. First operand 140 states. Second operand 390 states. [2020-07-28 18:58:27,675 INFO L87 Difference]: Start difference. First operand 140 states. Second operand 390 states. [2020-07-28 18:58:27,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:27,690 INFO L93 Difference]: Finished difference Result 390 states and 550 transitions. [2020-07-28 18:58:27,691 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 550 transitions. [2020-07-28 18:58:27,692 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:27,692 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:27,692 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:58:27,692 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:58:27,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-07-28 18:58:27,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 194 transitions. [2020-07-28 18:58:27,713 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 194 transitions. Word has length 26 [2020-07-28 18:58:27,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:58:27,714 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 194 transitions. [2020-07-28 18:58:27,714 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 18:58:27,714 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 194 transitions. [2020-07-28 18:58:27,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-07-28 18:58:27,715 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:58:27,715 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] [2020-07-28 18:58:27,715 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-28 18:58:27,715 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:58:27,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:58:27,719 INFO L82 PathProgramCache]: Analyzing trace with hash 895513141, now seen corresponding path program 1 times [2020-07-28 18:58:27,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:58:27,719 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738845829] [2020-07-28 18:58:27,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:58:27,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:58:27,786 INFO L280 TraceCheckUtils]: 0: Hoare triple {4712#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; {4712#true} is VALID [2020-07-28 18:58:27,786 INFO L280 TraceCheckUtils]: 1: Hoare triple {4712#true} havoc main_#res;havoc main_#t~ret36, main_~retValue_acc~6, main_~tmp~5;havoc main_~retValue_acc~6;havoc main_~tmp~5; {4712#true} is VALID [2020-07-28 18:58:27,786 INFO L280 TraceCheckUtils]: 2: Hoare triple {4712#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; {4712#true} is VALID [2020-07-28 18:58:27,786 INFO L280 TraceCheckUtils]: 3: Hoare triple {4712#true} main_#t~ret36 := valid_product_#res;assume -2147483648 <= main_#t~ret36 && main_#t~ret36 <= 2147483647;main_~tmp~5 := main_#t~ret36;havoc main_#t~ret36; {4712#true} is VALID [2020-07-28 18:58:27,787 INFO L280 TraceCheckUtils]: 4: Hoare triple {4712#true} assume 0 != main_~tmp~5; {4712#true} is VALID [2020-07-28 18:58:27,787 INFO L280 TraceCheckUtils]: 5: Hoare triple {4712#true} havoc test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {4712#true} is VALID [2020-07-28 18:58:27,787 INFO L280 TraceCheckUtils]: 6: Hoare triple {4712#true} assume !false; {4712#true} is VALID [2020-07-28 18:58:27,787 INFO L280 TraceCheckUtils]: 7: Hoare triple {4712#true} assume test_~splverifierCounter~0 < 4; {4712#true} is VALID [2020-07-28 18:58:27,788 INFO L280 TraceCheckUtils]: 8: Hoare triple {4712#true} assume -2147483648 <= test_#t~nondet30 && test_#t~nondet30 <= 2147483647;test_~tmp~3 := test_#t~nondet30;havoc test_#t~nondet30; {4712#true} is VALID [2020-07-28 18:58:27,788 INFO L280 TraceCheckUtils]: 9: Hoare triple {4712#true} assume !(0 != test_~tmp~3); {4712#true} is VALID [2020-07-28 18:58:27,788 INFO L280 TraceCheckUtils]: 10: Hoare triple {4712#true} assume -2147483648 <= test_#t~nondet31 && test_#t~nondet31 <= 2147483647;test_~tmp___0~1 := test_#t~nondet31;havoc test_#t~nondet31; {4712#true} is VALID [2020-07-28 18:58:27,788 INFO L280 TraceCheckUtils]: 11: Hoare triple {4712#true} assume 0 != test_~tmp___0~1; {4712#true} is VALID [2020-07-28 18:58:27,789 INFO L280 TraceCheckUtils]: 12: Hoare triple {4712#true} assume !(0 != ~methaneLevelCritical~0);~methaneLevelCritical~0 := 1; {4712#true} is VALID [2020-07-28 18:58:27,789 INFO L280 TraceCheckUtils]: 13: Hoare triple {4712#true} assume -2147483648 <= test_#t~nondet32 && test_#t~nondet32 <= 2147483647;test_~tmp___2~0 := test_#t~nondet32;havoc test_#t~nondet32; {4712#true} is VALID [2020-07-28 18:58:27,789 INFO L280 TraceCheckUtils]: 14: Hoare triple {4712#true} assume 0 != test_~tmp___2~0; {4712#true} is VALID [2020-07-28 18:58:27,789 INFO L280 TraceCheckUtils]: 15: Hoare triple {4712#true} assume !(0 != ~pumpRunning~0); {4712#true} is VALID [2020-07-28 18:58:27,790 INFO L280 TraceCheckUtils]: 16: Hoare triple {4712#true} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret10, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; {4712#true} is VALID [2020-07-28 18:58:27,790 INFO L280 TraceCheckUtils]: 17: Hoare triple {4712#true} assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret29, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; {4712#true} is VALID [2020-07-28 18:58:27,790 INFO L280 TraceCheckUtils]: 18: Hoare triple {4712#true} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; {4712#true} is VALID [2020-07-28 18:58:27,790 INFO L280 TraceCheckUtils]: 19: Hoare triple {4712#true} isHighWaterLevel_#t~ret29 := isHighWaterSensorDry_#res;assume -2147483648 <= isHighWaterLevel_#t~ret29 && isHighWaterLevel_#t~ret29 <= 2147483647;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret29;havoc isHighWaterLevel_#t~ret29; {4712#true} is VALID [2020-07-28 18:58:27,792 INFO L280 TraceCheckUtils]: 20: Hoare triple {4712#true} assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~0 := 0; {4714#(= 0 ULTIMATE.start_isHighWaterLevel_~tmp___0~0)} is VALID [2020-07-28 18:58:27,793 INFO L280 TraceCheckUtils]: 21: Hoare triple {4714#(= 0 ULTIMATE.start_isHighWaterLevel_~tmp___0~0)} isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; {4715#(= 0 |ULTIMATE.start_isHighWaterLevel_#res|)} is VALID [2020-07-28 18:58:27,793 INFO L280 TraceCheckUtils]: 22: Hoare triple {4715#(= 0 |ULTIMATE.start_isHighWaterLevel_#res|)} processEnvironment_#t~ret10 := isHighWaterLevel_#res;assume -2147483648 <= processEnvironment_#t~ret10 && processEnvironment_#t~ret10 <= 2147483647;processEnvironment_~tmp~0 := processEnvironment_#t~ret10;havoc processEnvironment_#t~ret10; {4716#(= 0 ULTIMATE.start_processEnvironment_~tmp~0)} is VALID [2020-07-28 18:58:27,794 INFO L280 TraceCheckUtils]: 23: Hoare triple {4716#(= 0 ULTIMATE.start_processEnvironment_~tmp~0)} assume 0 != processEnvironment_~tmp~0;havoc activatePump_#t~ret11, activatePump_~tmp~1;havoc activatePump_~tmp~1;havoc isMethaneAlarm_#res;havoc isMethaneAlarm_#t~ret12, isMethaneAlarm_~retValue_acc~3;havoc isMethaneAlarm_~retValue_acc~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; {4713#false} is VALID [2020-07-28 18:58:27,794 INFO L280 TraceCheckUtils]: 24: Hoare triple {4713#false} isMethaneAlarm_#t~ret12 := isMethaneLevelCritical_#res;assume -2147483648 <= isMethaneAlarm_#t~ret12 && isMethaneAlarm_#t~ret12 <= 2147483647;isMethaneAlarm_~retValue_acc~3 := isMethaneAlarm_#t~ret12;havoc isMethaneAlarm_#t~ret12;isMethaneAlarm_#res := isMethaneAlarm_~retValue_acc~3; {4713#false} is VALID [2020-07-28 18:58:27,795 INFO L280 TraceCheckUtils]: 25: Hoare triple {4713#false} activatePump_#t~ret11 := isMethaneAlarm_#res;assume -2147483648 <= activatePump_#t~ret11 && activatePump_#t~ret11 <= 2147483647;activatePump_~tmp~1 := activatePump_#t~ret11;havoc activatePump_#t~ret11; {4713#false} is VALID [2020-07-28 18:58:27,795 INFO L280 TraceCheckUtils]: 26: Hoare triple {4713#false} assume !(0 != activatePump_~tmp~1);~pumpRunning~0 := 1; {4713#false} is VALID [2020-07-28 18:58:27,795 INFO L280 TraceCheckUtils]: 27: Hoare triple {4713#false} havoc __utac_acc__Specification1_spec__1_#t~ret34, __utac_acc__Specification1_spec__1_#t~ret35, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; {4713#false} is VALID [2020-07-28 18:58:27,795 INFO L280 TraceCheckUtils]: 28: Hoare triple {4713#false} __utac_acc__Specification1_spec__1_#t~ret34 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret34 && __utac_acc__Specification1_spec__1_#t~ret34 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret34;havoc __utac_acc__Specification1_spec__1_#t~ret34; {4713#false} is VALID [2020-07-28 18:58:27,796 INFO L280 TraceCheckUtils]: 29: Hoare triple {4713#false} assume 0 != __utac_acc__Specification1_spec__1_~tmp~4;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; {4713#false} is VALID [2020-07-28 18:58:27,796 INFO L280 TraceCheckUtils]: 30: Hoare triple {4713#false} __utac_acc__Specification1_spec__1_#t~ret35 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret35 && __utac_acc__Specification1_spec__1_#t~ret35 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp___0~2 := __utac_acc__Specification1_spec__1_#t~ret35;havoc __utac_acc__Specification1_spec__1_#t~ret35; {4713#false} is VALID [2020-07-28 18:58:27,796 INFO L280 TraceCheckUtils]: 31: Hoare triple {4713#false} assume 0 != __utac_acc__Specification1_spec__1_~tmp___0~2; {4713#false} is VALID [2020-07-28 18:58:27,796 INFO L280 TraceCheckUtils]: 32: Hoare triple {4713#false} assume !false; {4713#false} is VALID [2020-07-28 18:58:27,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:58:27,798 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738845829] [2020-07-28 18:58:27,798 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:58:27,798 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-28 18:58:27,799 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406857228] [2020-07-28 18:58:27,799 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2020-07-28 18:58:27,799 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:58:27,800 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 18:58:27,837 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 33 edges. 33 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:58:27,837 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 18:58:27,837 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:58:27,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 18:58:27,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-28 18:58:27,838 INFO L87 Difference]: Start difference. First operand 140 states and 194 transitions. Second operand 5 states. [2020-07-28 18:58:29,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:29,016 INFO L93 Difference]: Finished difference Result 426 states and 588 transitions. [2020-07-28 18:58:29,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-28 18:58:29,016 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2020-07-28 18:58:29,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:58:29,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 18:58:29,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 165 transitions. [2020-07-28 18:58:29,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 18:58:29,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 165 transitions. [2020-07-28 18:58:29,022 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 165 transitions. [2020-07-28 18:58:29,200 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 165 edges. 165 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:58:29,210 INFO L225 Difference]: With dead ends: 426 [2020-07-28 18:58:29,210 INFO L226 Difference]: Without dead ends: 292 [2020-07-28 18:58:29,211 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-28 18:58:29,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2020-07-28 18:58:29,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 146. [2020-07-28 18:58:29,512 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:58:29,513 INFO L82 GeneralOperation]: Start isEquivalent. First operand 292 states. Second operand 146 states. [2020-07-28 18:58:29,513 INFO L74 IsIncluded]: Start isIncluded. First operand 292 states. Second operand 146 states. [2020-07-28 18:58:29,513 INFO L87 Difference]: Start difference. First operand 292 states. Second operand 146 states. [2020-07-28 18:58:29,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:29,520 INFO L93 Difference]: Finished difference Result 292 states and 398 transitions. [2020-07-28 18:58:29,520 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 398 transitions. [2020-07-28 18:58:29,521 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:29,521 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:29,521 INFO L74 IsIncluded]: Start isIncluded. First operand 146 states. Second operand 292 states. [2020-07-28 18:58:29,521 INFO L87 Difference]: Start difference. First operand 146 states. Second operand 292 states. [2020-07-28 18:58:29,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:29,530 INFO L93 Difference]: Finished difference Result 292 states and 398 transitions. [2020-07-28 18:58:29,530 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 398 transitions. [2020-07-28 18:58:29,530 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:29,531 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:29,531 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:58:29,531 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:58:29,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-07-28 18:58:29,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 200 transitions. [2020-07-28 18:58:29,534 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 200 transitions. Word has length 33 [2020-07-28 18:58:29,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:58:29,535 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 200 transitions. [2020-07-28 18:58:29,535 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 18:58:29,535 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 200 transitions. [2020-07-28 18:58:29,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-07-28 18:58:29,536 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:58:29,536 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] [2020-07-28 18:58:29,536 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-28 18:58:29,536 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:58:29,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:58:29,537 INFO L82 PathProgramCache]: Analyzing trace with hash 308707127, now seen corresponding path program 1 times [2020-07-28 18:58:29,537 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:58:29,537 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505810647] [2020-07-28 18:58:29,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:58:29,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:58:29,619 INFO L280 TraceCheckUtils]: 0: Hoare triple {6120#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; {6120#true} is VALID [2020-07-28 18:58:29,619 INFO L280 TraceCheckUtils]: 1: Hoare triple {6120#true} havoc main_#res;havoc main_#t~ret36, main_~retValue_acc~6, main_~tmp~5;havoc main_~retValue_acc~6;havoc main_~tmp~5; {6120#true} is VALID [2020-07-28 18:58:29,622 INFO L280 TraceCheckUtils]: 2: Hoare triple {6120#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; {6122#(= 1 |ULTIMATE.start_valid_product_#res|)} is VALID [2020-07-28 18:58:29,623 INFO L280 TraceCheckUtils]: 3: Hoare triple {6122#(= 1 |ULTIMATE.start_valid_product_#res|)} main_#t~ret36 := valid_product_#res;assume -2147483648 <= main_#t~ret36 && main_#t~ret36 <= 2147483647;main_~tmp~5 := main_#t~ret36;havoc main_#t~ret36; {6123#(= 1 ULTIMATE.start_main_~tmp~5)} is VALID [2020-07-28 18:58:29,624 INFO L280 TraceCheckUtils]: 4: Hoare triple {6123#(= 1 ULTIMATE.start_main_~tmp~5)} assume 0 != main_~tmp~5; {6120#true} is VALID [2020-07-28 18:58:29,624 INFO L280 TraceCheckUtils]: 5: Hoare triple {6120#true} havoc test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {6120#true} is VALID [2020-07-28 18:58:29,624 INFO L280 TraceCheckUtils]: 6: Hoare triple {6120#true} assume !false; {6120#true} is VALID [2020-07-28 18:58:29,624 INFO L280 TraceCheckUtils]: 7: Hoare triple {6120#true} assume test_~splverifierCounter~0 < 4; {6120#true} is VALID [2020-07-28 18:58:29,625 INFO L280 TraceCheckUtils]: 8: Hoare triple {6120#true} assume -2147483648 <= test_#t~nondet30 && test_#t~nondet30 <= 2147483647;test_~tmp~3 := test_#t~nondet30;havoc test_#t~nondet30; {6120#true} is VALID [2020-07-28 18:58:29,625 INFO L280 TraceCheckUtils]: 9: Hoare triple {6120#true} assume !(0 != test_~tmp~3); {6120#true} is VALID [2020-07-28 18:58:29,625 INFO L280 TraceCheckUtils]: 10: Hoare triple {6120#true} assume -2147483648 <= test_#t~nondet31 && test_#t~nondet31 <= 2147483647;test_~tmp___0~1 := test_#t~nondet31;havoc test_#t~nondet31; {6120#true} is VALID [2020-07-28 18:58:29,625 INFO L280 TraceCheckUtils]: 11: Hoare triple {6120#true} assume 0 != test_~tmp___0~1; {6120#true} is VALID [2020-07-28 18:58:29,626 INFO L280 TraceCheckUtils]: 12: Hoare triple {6120#true} assume !(0 != ~methaneLevelCritical~0);~methaneLevelCritical~0 := 1; {6120#true} is VALID [2020-07-28 18:58:29,626 INFO L280 TraceCheckUtils]: 13: Hoare triple {6120#true} assume -2147483648 <= test_#t~nondet32 && test_#t~nondet32 <= 2147483647;test_~tmp___2~0 := test_#t~nondet32;havoc test_#t~nondet32; {6120#true} is VALID [2020-07-28 18:58:29,626 INFO L280 TraceCheckUtils]: 14: Hoare triple {6120#true} assume 0 != test_~tmp___2~0; {6120#true} is VALID [2020-07-28 18:58:29,627 INFO L280 TraceCheckUtils]: 15: Hoare triple {6120#true} assume !(0 != ~pumpRunning~0); {6120#true} is VALID [2020-07-28 18:58:29,627 INFO L280 TraceCheckUtils]: 16: Hoare triple {6120#true} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret10, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; {6120#true} is VALID [2020-07-28 18:58:29,627 INFO L280 TraceCheckUtils]: 17: Hoare triple {6120#true} assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret29, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; {6120#true} is VALID [2020-07-28 18:58:29,629 INFO L280 TraceCheckUtils]: 18: Hoare triple {6120#true} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; {6124#(not (= 0 |ULTIMATE.start_isHighWaterSensorDry_#res|))} is VALID [2020-07-28 18:58:29,630 INFO L280 TraceCheckUtils]: 19: Hoare triple {6124#(not (= 0 |ULTIMATE.start_isHighWaterSensorDry_#res|))} isHighWaterLevel_#t~ret29 := isHighWaterSensorDry_#res;assume -2147483648 <= isHighWaterLevel_#t~ret29 && isHighWaterLevel_#t~ret29 <= 2147483647;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret29;havoc isHighWaterLevel_#t~ret29; {6125#(not (= 0 ULTIMATE.start_isHighWaterLevel_~tmp~2))} is VALID [2020-07-28 18:58:29,631 INFO L280 TraceCheckUtils]: 20: Hoare triple {6125#(not (= 0 ULTIMATE.start_isHighWaterLevel_~tmp~2))} assume !(0 != isHighWaterLevel_~tmp~2);isHighWaterLevel_~tmp___0~0 := 1; {6121#false} is VALID [2020-07-28 18:58:29,631 INFO L280 TraceCheckUtils]: 21: Hoare triple {6121#false} isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; {6121#false} is VALID [2020-07-28 18:58:29,631 INFO L280 TraceCheckUtils]: 22: Hoare triple {6121#false} processEnvironment_#t~ret10 := isHighWaterLevel_#res;assume -2147483648 <= processEnvironment_#t~ret10 && processEnvironment_#t~ret10 <= 2147483647;processEnvironment_~tmp~0 := processEnvironment_#t~ret10;havoc processEnvironment_#t~ret10; {6121#false} is VALID [2020-07-28 18:58:29,631 INFO L280 TraceCheckUtils]: 23: Hoare triple {6121#false} assume 0 != processEnvironment_~tmp~0;havoc activatePump_#t~ret11, activatePump_~tmp~1;havoc activatePump_~tmp~1;havoc isMethaneAlarm_#res;havoc isMethaneAlarm_#t~ret12, isMethaneAlarm_~retValue_acc~3;havoc isMethaneAlarm_~retValue_acc~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; {6121#false} is VALID [2020-07-28 18:58:29,632 INFO L280 TraceCheckUtils]: 24: Hoare triple {6121#false} isMethaneAlarm_#t~ret12 := isMethaneLevelCritical_#res;assume -2147483648 <= isMethaneAlarm_#t~ret12 && isMethaneAlarm_#t~ret12 <= 2147483647;isMethaneAlarm_~retValue_acc~3 := isMethaneAlarm_#t~ret12;havoc isMethaneAlarm_#t~ret12;isMethaneAlarm_#res := isMethaneAlarm_~retValue_acc~3; {6121#false} is VALID [2020-07-28 18:58:29,632 INFO L280 TraceCheckUtils]: 25: Hoare triple {6121#false} activatePump_#t~ret11 := isMethaneAlarm_#res;assume -2147483648 <= activatePump_#t~ret11 && activatePump_#t~ret11 <= 2147483647;activatePump_~tmp~1 := activatePump_#t~ret11;havoc activatePump_#t~ret11; {6121#false} is VALID [2020-07-28 18:58:29,632 INFO L280 TraceCheckUtils]: 26: Hoare triple {6121#false} assume !(0 != activatePump_~tmp~1);~pumpRunning~0 := 1; {6121#false} is VALID [2020-07-28 18:58:29,632 INFO L280 TraceCheckUtils]: 27: Hoare triple {6121#false} havoc __utac_acc__Specification1_spec__1_#t~ret34, __utac_acc__Specification1_spec__1_#t~ret35, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; {6121#false} is VALID [2020-07-28 18:58:29,632 INFO L280 TraceCheckUtils]: 28: Hoare triple {6121#false} __utac_acc__Specification1_spec__1_#t~ret34 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret34 && __utac_acc__Specification1_spec__1_#t~ret34 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret34;havoc __utac_acc__Specification1_spec__1_#t~ret34; {6121#false} is VALID [2020-07-28 18:58:29,633 INFO L280 TraceCheckUtils]: 29: Hoare triple {6121#false} assume 0 != __utac_acc__Specification1_spec__1_~tmp~4;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; {6121#false} is VALID [2020-07-28 18:58:29,633 INFO L280 TraceCheckUtils]: 30: Hoare triple {6121#false} __utac_acc__Specification1_spec__1_#t~ret35 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret35 && __utac_acc__Specification1_spec__1_#t~ret35 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp___0~2 := __utac_acc__Specification1_spec__1_#t~ret35;havoc __utac_acc__Specification1_spec__1_#t~ret35; {6121#false} is VALID [2020-07-28 18:58:29,634 INFO L280 TraceCheckUtils]: 31: Hoare triple {6121#false} assume 0 != __utac_acc__Specification1_spec__1_~tmp___0~2; {6121#false} is VALID [2020-07-28 18:58:29,634 INFO L280 TraceCheckUtils]: 32: Hoare triple {6121#false} assume !false; {6121#false} is VALID [2020-07-28 18:58:29,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:58:29,640 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505810647] [2020-07-28 18:58:29,640 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:58:29,640 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-28 18:58:29,641 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821214660] [2020-07-28 18:58:29,641 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2020-07-28 18:58:29,642 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:58:29,642 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-28 18:58:29,686 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 33 edges. 33 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:58:29,686 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-28 18:58:29,686 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:58:29,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-28 18:58:29,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-28 18:58:29,687 INFO L87 Difference]: Start difference. First operand 146 states and 200 transitions. Second operand 6 states. [2020-07-28 18:58:31,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:31,350 INFO L93 Difference]: Finished difference Result 444 states and 606 transitions. [2020-07-28 18:58:31,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-28 18:58:31,351 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2020-07-28 18:58:31,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:58:31,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 18:58:31,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 171 transitions. [2020-07-28 18:58:31,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 18:58:31,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 171 transitions. [2020-07-28 18:58:31,361 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 171 transitions. [2020-07-28 18:58:31,577 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 171 edges. 171 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:58:31,585 INFO L225 Difference]: With dead ends: 444 [2020-07-28 18:58:31,585 INFO L226 Difference]: Without dead ends: 304 [2020-07-28 18:58:31,586 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-07-28 18:58:31,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2020-07-28 18:58:31,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 150. [2020-07-28 18:58:31,971 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:58:31,971 INFO L82 GeneralOperation]: Start isEquivalent. First operand 304 states. Second operand 150 states. [2020-07-28 18:58:31,971 INFO L74 IsIncluded]: Start isIncluded. First operand 304 states. Second operand 150 states. [2020-07-28 18:58:31,972 INFO L87 Difference]: Start difference. First operand 304 states. Second operand 150 states. [2020-07-28 18:58:31,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:31,980 INFO L93 Difference]: Finished difference Result 304 states and 410 transitions. [2020-07-28 18:58:31,981 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 410 transitions. [2020-07-28 18:58:31,981 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:31,982 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:31,982 INFO L74 IsIncluded]: Start isIncluded. First operand 150 states. Second operand 304 states. [2020-07-28 18:58:31,982 INFO L87 Difference]: Start difference. First operand 150 states. Second operand 304 states. [2020-07-28 18:58:31,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:31,990 INFO L93 Difference]: Finished difference Result 304 states and 410 transitions. [2020-07-28 18:58:31,990 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 410 transitions. [2020-07-28 18:58:31,991 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:31,991 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:31,991 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:58:31,991 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:58:31,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-07-28 18:58:31,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 204 transitions. [2020-07-28 18:58:31,995 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 204 transitions. Word has length 33 [2020-07-28 18:58:31,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:58:31,995 INFO L479 AbstractCegarLoop]: Abstraction has 150 states and 204 transitions. [2020-07-28 18:58:31,995 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-28 18:58:31,995 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 204 transitions. [2020-07-28 18:58:31,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-07-28 18:58:31,996 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:58:31,996 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] [2020-07-28 18:58:31,996 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-28 18:58:31,997 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:58:31,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:58:31,997 INFO L82 PathProgramCache]: Analyzing trace with hash -971156551, now seen corresponding path program 1 times [2020-07-28 18:58:31,997 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:58:31,998 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843475558] [2020-07-28 18:58:31,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:58:32,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:58:32,060 INFO L280 TraceCheckUtils]: 0: Hoare triple {7588#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; {7590#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:58:32,061 INFO L280 TraceCheckUtils]: 1: Hoare triple {7590#(= 1 ~waterLevel~0)} havoc main_#res;havoc main_#t~ret36, main_~retValue_acc~6, main_~tmp~5;havoc main_~retValue_acc~6;havoc main_~tmp~5; {7590#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:58:32,062 INFO L280 TraceCheckUtils]: 2: Hoare triple {7590#(= 1 ~waterLevel~0)} havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; {7590#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:58:32,062 INFO L280 TraceCheckUtils]: 3: Hoare triple {7590#(= 1 ~waterLevel~0)} main_#t~ret36 := valid_product_#res;assume -2147483648 <= main_#t~ret36 && main_#t~ret36 <= 2147483647;main_~tmp~5 := main_#t~ret36;havoc main_#t~ret36; {7590#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:58:32,063 INFO L280 TraceCheckUtils]: 4: Hoare triple {7590#(= 1 ~waterLevel~0)} assume 0 != main_~tmp~5; {7590#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:58:32,063 INFO L280 TraceCheckUtils]: 5: Hoare triple {7590#(= 1 ~waterLevel~0)} havoc test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {7590#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:58:32,064 INFO L280 TraceCheckUtils]: 6: Hoare triple {7590#(= 1 ~waterLevel~0)} assume !false; {7590#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:58:32,064 INFO L280 TraceCheckUtils]: 7: Hoare triple {7590#(= 1 ~waterLevel~0)} assume test_~splverifierCounter~0 < 4; {7590#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:58:32,065 INFO L280 TraceCheckUtils]: 8: Hoare triple {7590#(= 1 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet30 && test_#t~nondet30 <= 2147483647;test_~tmp~3 := test_#t~nondet30;havoc test_#t~nondet30; {7590#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:58:32,066 INFO L280 TraceCheckUtils]: 9: Hoare triple {7590#(= 1 ~waterLevel~0)} assume !(0 != test_~tmp~3); {7590#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:58:32,066 INFO L280 TraceCheckUtils]: 10: Hoare triple {7590#(= 1 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet31 && test_#t~nondet31 <= 2147483647;test_~tmp___0~1 := test_#t~nondet31;havoc test_#t~nondet31; {7590#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:58:32,067 INFO L280 TraceCheckUtils]: 11: Hoare triple {7590#(= 1 ~waterLevel~0)} assume 0 != test_~tmp___0~1; {7590#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:58:32,067 INFO L280 TraceCheckUtils]: 12: Hoare triple {7590#(= 1 ~waterLevel~0)} assume !(0 != ~methaneLevelCritical~0);~methaneLevelCritical~0 := 1; {7590#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:58:32,068 INFO L280 TraceCheckUtils]: 13: Hoare triple {7590#(= 1 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet32 && test_#t~nondet32 <= 2147483647;test_~tmp___2~0 := test_#t~nondet32;havoc test_#t~nondet32; {7590#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:58:32,068 INFO L280 TraceCheckUtils]: 14: Hoare triple {7590#(= 1 ~waterLevel~0)} assume 0 != test_~tmp___2~0; {7590#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:58:32,069 INFO L280 TraceCheckUtils]: 15: Hoare triple {7590#(= 1 ~waterLevel~0)} assume !(0 != ~pumpRunning~0); {7590#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:58:32,070 INFO L280 TraceCheckUtils]: 16: Hoare triple {7590#(= 1 ~waterLevel~0)} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret10, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; {7590#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:58:32,070 INFO L280 TraceCheckUtils]: 17: Hoare triple {7590#(= 1 ~waterLevel~0)} assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret29, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; {7590#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:58:32,071 INFO L280 TraceCheckUtils]: 18: Hoare triple {7590#(= 1 ~waterLevel~0)} assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~2 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; {7589#false} is VALID [2020-07-28 18:58:32,071 INFO L280 TraceCheckUtils]: 19: Hoare triple {7589#false} isHighWaterLevel_#t~ret29 := isHighWaterSensorDry_#res;assume -2147483648 <= isHighWaterLevel_#t~ret29 && isHighWaterLevel_#t~ret29 <= 2147483647;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret29;havoc isHighWaterLevel_#t~ret29; {7589#false} is VALID [2020-07-28 18:58:32,071 INFO L280 TraceCheckUtils]: 20: Hoare triple {7589#false} assume !(0 != isHighWaterLevel_~tmp~2);isHighWaterLevel_~tmp___0~0 := 1; {7589#false} is VALID [2020-07-28 18:58:32,071 INFO L280 TraceCheckUtils]: 21: Hoare triple {7589#false} isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; {7589#false} is VALID [2020-07-28 18:58:32,072 INFO L280 TraceCheckUtils]: 22: Hoare triple {7589#false} processEnvironment_#t~ret10 := isHighWaterLevel_#res;assume -2147483648 <= processEnvironment_#t~ret10 && processEnvironment_#t~ret10 <= 2147483647;processEnvironment_~tmp~0 := processEnvironment_#t~ret10;havoc processEnvironment_#t~ret10; {7589#false} is VALID [2020-07-28 18:58:32,072 INFO L280 TraceCheckUtils]: 23: Hoare triple {7589#false} assume 0 != processEnvironment_~tmp~0;havoc activatePump_#t~ret11, activatePump_~tmp~1;havoc activatePump_~tmp~1;havoc isMethaneAlarm_#res;havoc isMethaneAlarm_#t~ret12, isMethaneAlarm_~retValue_acc~3;havoc isMethaneAlarm_~retValue_acc~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; {7589#false} is VALID [2020-07-28 18:58:32,072 INFO L280 TraceCheckUtils]: 24: Hoare triple {7589#false} isMethaneAlarm_#t~ret12 := isMethaneLevelCritical_#res;assume -2147483648 <= isMethaneAlarm_#t~ret12 && isMethaneAlarm_#t~ret12 <= 2147483647;isMethaneAlarm_~retValue_acc~3 := isMethaneAlarm_#t~ret12;havoc isMethaneAlarm_#t~ret12;isMethaneAlarm_#res := isMethaneAlarm_~retValue_acc~3; {7589#false} is VALID [2020-07-28 18:58:32,072 INFO L280 TraceCheckUtils]: 25: Hoare triple {7589#false} activatePump_#t~ret11 := isMethaneAlarm_#res;assume -2147483648 <= activatePump_#t~ret11 && activatePump_#t~ret11 <= 2147483647;activatePump_~tmp~1 := activatePump_#t~ret11;havoc activatePump_#t~ret11; {7589#false} is VALID [2020-07-28 18:58:32,073 INFO L280 TraceCheckUtils]: 26: Hoare triple {7589#false} assume !(0 != activatePump_~tmp~1);~pumpRunning~0 := 1; {7589#false} is VALID [2020-07-28 18:58:32,073 INFO L280 TraceCheckUtils]: 27: Hoare triple {7589#false} havoc __utac_acc__Specification1_spec__1_#t~ret34, __utac_acc__Specification1_spec__1_#t~ret35, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; {7589#false} is VALID [2020-07-28 18:58:32,073 INFO L280 TraceCheckUtils]: 28: Hoare triple {7589#false} __utac_acc__Specification1_spec__1_#t~ret34 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret34 && __utac_acc__Specification1_spec__1_#t~ret34 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret34;havoc __utac_acc__Specification1_spec__1_#t~ret34; {7589#false} is VALID [2020-07-28 18:58:32,073 INFO L280 TraceCheckUtils]: 29: Hoare triple {7589#false} assume 0 != __utac_acc__Specification1_spec__1_~tmp~4;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; {7589#false} is VALID [2020-07-28 18:58:32,074 INFO L280 TraceCheckUtils]: 30: Hoare triple {7589#false} __utac_acc__Specification1_spec__1_#t~ret35 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret35 && __utac_acc__Specification1_spec__1_#t~ret35 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp___0~2 := __utac_acc__Specification1_spec__1_#t~ret35;havoc __utac_acc__Specification1_spec__1_#t~ret35; {7589#false} is VALID [2020-07-28 18:58:32,074 INFO L280 TraceCheckUtils]: 31: Hoare triple {7589#false} assume 0 != __utac_acc__Specification1_spec__1_~tmp___0~2; {7589#false} is VALID [2020-07-28 18:58:32,074 INFO L280 TraceCheckUtils]: 32: Hoare triple {7589#false} assume !false; {7589#false} is VALID [2020-07-28 18:58:32,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:58:32,076 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843475558] [2020-07-28 18:58:32,076 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:58:32,076 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 18:58:32,076 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253763048] [2020-07-28 18:58:32,077 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-07-28 18:58:32,077 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:58:32,077 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 18:58:32,118 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 33 edges. 33 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:58:32,119 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 18:58:32,119 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:58:32,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 18:58:32,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 18:58:32,120 INFO L87 Difference]: Start difference. First operand 150 states and 204 transitions. Second operand 3 states. [2020-07-28 18:58:32,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:32,942 INFO L93 Difference]: Finished difference Result 380 states and 516 transitions. [2020-07-28 18:58:32,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 18:58:32,943 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-07-28 18:58:32,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:58:32,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 18:58:32,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 140 transitions. [2020-07-28 18:58:32,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 18:58:32,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 140 transitions. [2020-07-28 18:58:32,946 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 140 transitions. [2020-07-28 18:58:33,117 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 140 edges. 140 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:58:33,125 INFO L225 Difference]: With dead ends: 380 [2020-07-28 18:58:33,125 INFO L226 Difference]: Without dead ends: 236 [2020-07-28 18:58:33,126 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 18:58:33,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-07-28 18:58:33,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236. [2020-07-28 18:58:33,821 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:58:33,821 INFO L82 GeneralOperation]: Start isEquivalent. First operand 236 states. Second operand 236 states. [2020-07-28 18:58:33,821 INFO L74 IsIncluded]: Start isIncluded. First operand 236 states. Second operand 236 states. [2020-07-28 18:58:33,821 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 236 states. [2020-07-28 18:58:33,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:33,827 INFO L93 Difference]: Finished difference Result 236 states and 312 transitions. [2020-07-28 18:58:33,828 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 312 transitions. [2020-07-28 18:58:33,828 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:33,828 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:33,829 INFO L74 IsIncluded]: Start isIncluded. First operand 236 states. Second operand 236 states. [2020-07-28 18:58:33,829 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 236 states. [2020-07-28 18:58:33,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:33,834 INFO L93 Difference]: Finished difference Result 236 states and 312 transitions. [2020-07-28 18:58:33,834 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 312 transitions. [2020-07-28 18:58:33,834 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:33,834 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:33,835 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:58:33,835 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:58:33,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2020-07-28 18:58:33,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 312 transitions. [2020-07-28 18:58:33,841 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 312 transitions. Word has length 33 [2020-07-28 18:58:33,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:58:33,841 INFO L479 AbstractCegarLoop]: Abstraction has 236 states and 312 transitions. [2020-07-28 18:58:33,841 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 18:58:33,841 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 312 transitions. [2020-07-28 18:58:33,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-07-28 18:58:33,842 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:58:33,843 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] [2020-07-28 18:58:33,843 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-28 18:58:33,843 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:58:33,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:58:33,843 INFO L82 PathProgramCache]: Analyzing trace with hash 186139387, now seen corresponding path program 1 times [2020-07-28 18:58:33,844 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:58:33,844 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116120140] [2020-07-28 18:58:33,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:58:33,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:58:33,974 INFO L280 TraceCheckUtils]: 0: Hoare triple {8936#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; {8936#true} is VALID [2020-07-28 18:58:33,975 INFO L280 TraceCheckUtils]: 1: Hoare triple {8936#true} havoc main_#res;havoc main_#t~ret36, main_~retValue_acc~6, main_~tmp~5;havoc main_~retValue_acc~6;havoc main_~tmp~5; {8936#true} is VALID [2020-07-28 18:58:33,975 INFO L280 TraceCheckUtils]: 2: Hoare triple {8936#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; {8938#(= 1 |ULTIMATE.start_valid_product_#res|)} is VALID [2020-07-28 18:58:33,976 INFO L280 TraceCheckUtils]: 3: Hoare triple {8938#(= 1 |ULTIMATE.start_valid_product_#res|)} main_#t~ret36 := valid_product_#res;assume -2147483648 <= main_#t~ret36 && main_#t~ret36 <= 2147483647;main_~tmp~5 := main_#t~ret36;havoc main_#t~ret36; {8939#(= 1 ULTIMATE.start_main_~tmp~5)} is VALID [2020-07-28 18:58:33,976 INFO L280 TraceCheckUtils]: 4: Hoare triple {8939#(= 1 ULTIMATE.start_main_~tmp~5)} assume 0 != main_~tmp~5; {8936#true} is VALID [2020-07-28 18:58:33,976 INFO L280 TraceCheckUtils]: 5: Hoare triple {8936#true} havoc test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {8936#true} is VALID [2020-07-28 18:58:33,977 INFO L280 TraceCheckUtils]: 6: Hoare triple {8936#true} assume !false; {8936#true} is VALID [2020-07-28 18:58:33,977 INFO L280 TraceCheckUtils]: 7: Hoare triple {8936#true} assume test_~splverifierCounter~0 < 4; {8936#true} is VALID [2020-07-28 18:58:33,977 INFO L280 TraceCheckUtils]: 8: Hoare triple {8936#true} assume -2147483648 <= test_#t~nondet30 && test_#t~nondet30 <= 2147483647;test_~tmp~3 := test_#t~nondet30;havoc test_#t~nondet30; {8936#true} is VALID [2020-07-28 18:58:33,977 INFO L280 TraceCheckUtils]: 9: Hoare triple {8936#true} assume 0 != test_~tmp~3; {8936#true} is VALID [2020-07-28 18:58:33,977 INFO L280 TraceCheckUtils]: 10: Hoare triple {8936#true} assume ~waterLevel~0 < 2;~waterLevel~0 := 1 + ~waterLevel~0; {8936#true} is VALID [2020-07-28 18:58:33,978 INFO L280 TraceCheckUtils]: 11: Hoare triple {8936#true} assume -2147483648 <= test_#t~nondet31 && test_#t~nondet31 <= 2147483647;test_~tmp___0~1 := test_#t~nondet31;havoc test_#t~nondet31; {8936#true} is VALID [2020-07-28 18:58:33,978 INFO L280 TraceCheckUtils]: 12: Hoare triple {8936#true} assume 0 != test_~tmp___0~1; {8936#true} is VALID [2020-07-28 18:58:33,979 INFO L280 TraceCheckUtils]: 13: Hoare triple {8936#true} assume !(0 != ~methaneLevelCritical~0);~methaneLevelCritical~0 := 1; {8940#(not (= 0 ~methaneLevelCritical~0))} is VALID [2020-07-28 18:58:33,979 INFO L280 TraceCheckUtils]: 14: Hoare triple {8940#(not (= 0 ~methaneLevelCritical~0))} assume -2147483648 <= test_#t~nondet32 && test_#t~nondet32 <= 2147483647;test_~tmp___2~0 := test_#t~nondet32;havoc test_#t~nondet32; {8940#(not (= 0 ~methaneLevelCritical~0))} is VALID [2020-07-28 18:58:33,980 INFO L280 TraceCheckUtils]: 15: Hoare triple {8940#(not (= 0 ~methaneLevelCritical~0))} assume 0 != test_~tmp___2~0; {8940#(not (= 0 ~methaneLevelCritical~0))} is VALID [2020-07-28 18:58:33,981 INFO L280 TraceCheckUtils]: 16: Hoare triple {8940#(not (= 0 ~methaneLevelCritical~0))} assume !(0 != ~pumpRunning~0); {8940#(not (= 0 ~methaneLevelCritical~0))} is VALID [2020-07-28 18:58:33,981 INFO L280 TraceCheckUtils]: 17: Hoare triple {8940#(not (= 0 ~methaneLevelCritical~0))} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret10, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; {8940#(not (= 0 ~methaneLevelCritical~0))} is VALID [2020-07-28 18:58:33,982 INFO L280 TraceCheckUtils]: 18: Hoare triple {8940#(not (= 0 ~methaneLevelCritical~0))} assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret29, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; {8940#(not (= 0 ~methaneLevelCritical~0))} is VALID [2020-07-28 18:58:33,983 INFO L280 TraceCheckUtils]: 19: Hoare triple {8940#(not (= 0 ~methaneLevelCritical~0))} assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~2 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; {8940#(not (= 0 ~methaneLevelCritical~0))} is VALID [2020-07-28 18:58:33,983 INFO L280 TraceCheckUtils]: 20: Hoare triple {8940#(not (= 0 ~methaneLevelCritical~0))} isHighWaterLevel_#t~ret29 := isHighWaterSensorDry_#res;assume -2147483648 <= isHighWaterLevel_#t~ret29 && isHighWaterLevel_#t~ret29 <= 2147483647;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret29;havoc isHighWaterLevel_#t~ret29; {8940#(not (= 0 ~methaneLevelCritical~0))} is VALID [2020-07-28 18:58:33,984 INFO L280 TraceCheckUtils]: 21: Hoare triple {8940#(not (= 0 ~methaneLevelCritical~0))} assume !(0 != isHighWaterLevel_~tmp~2);isHighWaterLevel_~tmp___0~0 := 1; {8940#(not (= 0 ~methaneLevelCritical~0))} is VALID [2020-07-28 18:58:33,985 INFO L280 TraceCheckUtils]: 22: Hoare triple {8940#(not (= 0 ~methaneLevelCritical~0))} isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; {8940#(not (= 0 ~methaneLevelCritical~0))} is VALID [2020-07-28 18:58:33,986 INFO L280 TraceCheckUtils]: 23: Hoare triple {8940#(not (= 0 ~methaneLevelCritical~0))} processEnvironment_#t~ret10 := isHighWaterLevel_#res;assume -2147483648 <= processEnvironment_#t~ret10 && processEnvironment_#t~ret10 <= 2147483647;processEnvironment_~tmp~0 := processEnvironment_#t~ret10;havoc processEnvironment_#t~ret10; {8940#(not (= 0 ~methaneLevelCritical~0))} is VALID [2020-07-28 18:58:33,988 INFO L280 TraceCheckUtils]: 24: Hoare triple {8940#(not (= 0 ~methaneLevelCritical~0))} assume 0 != processEnvironment_~tmp~0;havoc activatePump_#t~ret11, activatePump_~tmp~1;havoc activatePump_~tmp~1;havoc isMethaneAlarm_#res;havoc isMethaneAlarm_#t~ret12, isMethaneAlarm_~retValue_acc~3;havoc isMethaneAlarm_~retValue_acc~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; {8941#(not (= 0 |ULTIMATE.start_isMethaneLevelCritical_#res|))} is VALID [2020-07-28 18:58:33,991 INFO L280 TraceCheckUtils]: 25: Hoare triple {8941#(not (= 0 |ULTIMATE.start_isMethaneLevelCritical_#res|))} isMethaneAlarm_#t~ret12 := isMethaneLevelCritical_#res;assume -2147483648 <= isMethaneAlarm_#t~ret12 && isMethaneAlarm_#t~ret12 <= 2147483647;isMethaneAlarm_~retValue_acc~3 := isMethaneAlarm_#t~ret12;havoc isMethaneAlarm_#t~ret12;isMethaneAlarm_#res := isMethaneAlarm_~retValue_acc~3; {8942#(not (= 0 |ULTIMATE.start_isMethaneAlarm_#res|))} is VALID [2020-07-28 18:58:33,992 INFO L280 TraceCheckUtils]: 26: Hoare triple {8942#(not (= 0 |ULTIMATE.start_isMethaneAlarm_#res|))} activatePump_#t~ret11 := isMethaneAlarm_#res;assume -2147483648 <= activatePump_#t~ret11 && activatePump_#t~ret11 <= 2147483647;activatePump_~tmp~1 := activatePump_#t~ret11;havoc activatePump_#t~ret11; {8943#(not (= 0 ULTIMATE.start_activatePump_~tmp~1))} is VALID [2020-07-28 18:58:33,996 INFO L280 TraceCheckUtils]: 27: Hoare triple {8943#(not (= 0 ULTIMATE.start_activatePump_~tmp~1))} assume !(0 != activatePump_~tmp~1);~pumpRunning~0 := 1; {8937#false} is VALID [2020-07-28 18:58:33,997 INFO L280 TraceCheckUtils]: 28: Hoare triple {8937#false} havoc __utac_acc__Specification1_spec__1_#t~ret34, __utac_acc__Specification1_spec__1_#t~ret35, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; {8937#false} is VALID [2020-07-28 18:58:33,997 INFO L280 TraceCheckUtils]: 29: Hoare triple {8937#false} __utac_acc__Specification1_spec__1_#t~ret34 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret34 && __utac_acc__Specification1_spec__1_#t~ret34 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret34;havoc __utac_acc__Specification1_spec__1_#t~ret34; {8937#false} is VALID [2020-07-28 18:58:33,997 INFO L280 TraceCheckUtils]: 30: Hoare triple {8937#false} assume 0 != __utac_acc__Specification1_spec__1_~tmp~4;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; {8937#false} is VALID [2020-07-28 18:58:33,998 INFO L280 TraceCheckUtils]: 31: Hoare triple {8937#false} __utac_acc__Specification1_spec__1_#t~ret35 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret35 && __utac_acc__Specification1_spec__1_#t~ret35 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp___0~2 := __utac_acc__Specification1_spec__1_#t~ret35;havoc __utac_acc__Specification1_spec__1_#t~ret35; {8937#false} is VALID [2020-07-28 18:58:33,999 INFO L280 TraceCheckUtils]: 32: Hoare triple {8937#false} assume 0 != __utac_acc__Specification1_spec__1_~tmp___0~2; {8937#false} is VALID [2020-07-28 18:58:33,999 INFO L280 TraceCheckUtils]: 33: Hoare triple {8937#false} assume !false; {8937#false} is VALID [2020-07-28 18:58:34,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:58:34,002 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116120140] [2020-07-28 18:58:34,003 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:58:34,003 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-28 18:58:34,003 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825578532] [2020-07-28 18:58:34,005 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2020-07-28 18:58:34,005 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:58:34,005 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states. [2020-07-28 18:58:34,049 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 34 edges. 34 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:58:34,050 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-28 18:58:34,050 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:58:34,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-28 18:58:34,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-07-28 18:58:34,050 INFO L87 Difference]: Start difference. First operand 236 states and 312 transitions. Second operand 8 states. [2020-07-28 18:58:37,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:37,635 INFO L93 Difference]: Finished difference Result 874 states and 1160 transitions. [2020-07-28 18:58:37,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-28 18:58:37,636 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2020-07-28 18:58:37,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:58:37,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-28 18:58:37,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 427 transitions. [2020-07-28 18:58:37,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-28 18:58:37,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 427 transitions. [2020-07-28 18:58:37,640 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 16 states and 427 transitions. [2020-07-28 18:58:38,216 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 427 edges. 427 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:58:38,240 INFO L225 Difference]: With dead ends: 874 [2020-07-28 18:58:38,241 INFO L226 Difference]: Without dead ends: 644 [2020-07-28 18:58:38,242 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=139, Invalid=281, Unknown=0, NotChecked=0, Total=420 [2020-07-28 18:58:38,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2020-07-28 18:58:38,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 236. [2020-07-28 18:58:38,921 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:58:38,921 INFO L82 GeneralOperation]: Start isEquivalent. First operand 644 states. Second operand 236 states. [2020-07-28 18:58:38,921 INFO L74 IsIncluded]: Start isIncluded. First operand 644 states. Second operand 236 states. [2020-07-28 18:58:38,921 INFO L87 Difference]: Start difference. First operand 644 states. Second operand 236 states. [2020-07-28 18:58:38,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:38,940 INFO L93 Difference]: Finished difference Result 644 states and 844 transitions. [2020-07-28 18:58:38,940 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 844 transitions. [2020-07-28 18:58:38,941 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:38,941 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:38,941 INFO L74 IsIncluded]: Start isIncluded. First operand 236 states. Second operand 644 states. [2020-07-28 18:58:38,941 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 644 states. [2020-07-28 18:58:38,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:38,964 INFO L93 Difference]: Finished difference Result 644 states and 844 transitions. [2020-07-28 18:58:38,964 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 844 transitions. [2020-07-28 18:58:38,966 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:38,966 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:38,966 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:58:38,966 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:58:38,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2020-07-28 18:58:38,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 306 transitions. [2020-07-28 18:58:38,972 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 306 transitions. Word has length 34 [2020-07-28 18:58:38,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:58:38,972 INFO L479 AbstractCegarLoop]: Abstraction has 236 states and 306 transitions. [2020-07-28 18:58:38,972 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-28 18:58:38,972 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 306 transitions. [2020-07-28 18:58:38,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-07-28 18:58:38,973 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:58:38,973 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 18:58:38,973 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-28 18:58:38,974 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:58:38,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:58:38,974 INFO L82 PathProgramCache]: Analyzing trace with hash 1466712466, now seen corresponding path program 1 times [2020-07-28 18:58:38,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:58:38,977 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15353732] [2020-07-28 18:58:38,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:58:39,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 18:58:39,058 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 18:58:39,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 18:58:39,138 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 18:58:39,216 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-28 18:58:39,216 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-28 18:58:39,216 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-28 18:58:39,506 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 18:58:39,506 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-28 18:58:39,506 WARN L170 areAnnotationChecker]: L923 has no Hoare annotation [2020-07-28 18:58:39,506 WARN L170 areAnnotationChecker]: L931 has no Hoare annotation [2020-07-28 18:58:39,507 WARN L170 areAnnotationChecker]: L521 has no Hoare annotation [2020-07-28 18:58:39,507 WARN L170 areAnnotationChecker]: L521 has no Hoare annotation [2020-07-28 18:58:39,507 WARN L170 areAnnotationChecker]: L495 has no Hoare annotation [2020-07-28 18:58:39,507 WARN L170 areAnnotationChecker]: L521-1 has no Hoare annotation [2020-07-28 18:58:39,507 WARN L170 areAnnotationChecker]: L418-1 has no Hoare annotation [2020-07-28 18:58:39,507 WARN L170 areAnnotationChecker]: L418-1 has no Hoare annotation [2020-07-28 18:58:39,507 WARN L170 areAnnotationChecker]: L418-1 has no Hoare annotation [2020-07-28 18:58:39,507 WARN L170 areAnnotationChecker]: L530 has no Hoare annotation [2020-07-28 18:58:39,507 WARN L170 areAnnotationChecker]: L392 has no Hoare annotation [2020-07-28 18:58:39,507 WARN L170 areAnnotationChecker]: L345 has no Hoare annotation [2020-07-28 18:58:39,508 WARN L170 areAnnotationChecker]: L345 has no Hoare annotation [2020-07-28 18:58:39,508 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 18:58:39,508 WARN L170 areAnnotationChecker]: L155-1 has no Hoare annotation [2020-07-28 18:58:39,508 WARN L170 areAnnotationChecker]: L155-1 has no Hoare annotation [2020-07-28 18:58:39,508 WARN L170 areAnnotationChecker]: L346 has no Hoare annotation [2020-07-28 18:58:39,508 WARN L170 areAnnotationChecker]: L53-3 has no Hoare annotation [2020-07-28 18:58:39,508 WARN L170 areAnnotationChecker]: L53-3 has no Hoare annotation [2020-07-28 18:58:39,508 WARN L170 areAnnotationChecker]: L155-2 has no Hoare annotation [2020-07-28 18:58:39,508 WARN L170 areAnnotationChecker]: L155-2 has no Hoare annotation [2020-07-28 18:58:39,508 WARN L170 areAnnotationChecker]: L354 has no Hoare annotation [2020-07-28 18:58:39,509 WARN L170 areAnnotationChecker]: L354 has no Hoare annotation [2020-07-28 18:58:39,509 WARN L170 areAnnotationChecker]: L187-1 has no Hoare annotation [2020-07-28 18:58:39,509 WARN L170 areAnnotationChecker]: L187-1 has no Hoare annotation [2020-07-28 18:58:39,509 WARN L170 areAnnotationChecker]: L162-1 has no Hoare annotation [2020-07-28 18:58:39,509 WARN L170 areAnnotationChecker]: L65 has no Hoare annotation [2020-07-28 18:58:39,509 WARN L170 areAnnotationChecker]: L65 has no Hoare annotation [2020-07-28 18:58:39,509 WARN L170 areAnnotationChecker]: L354-1 has no Hoare annotation [2020-07-28 18:58:39,510 WARN L170 areAnnotationChecker]: L130-1 has no Hoare annotation [2020-07-28 18:58:39,510 WARN L170 areAnnotationChecker]: L130-1 has no Hoare annotation [2020-07-28 18:58:39,510 WARN L170 areAnnotationChecker]: L90-3 has no Hoare annotation [2020-07-28 18:58:39,510 WARN L170 areAnnotationChecker]: L364 has no Hoare annotation [2020-07-28 18:58:39,510 WARN L170 areAnnotationChecker]: L364 has no Hoare annotation [2020-07-28 18:58:39,510 WARN L170 areAnnotationChecker]: L135-1 has no Hoare annotation [2020-07-28 18:58:39,511 WARN L170 areAnnotationChecker]: L418-2 has no Hoare annotation [2020-07-28 18:58:39,511 WARN L170 areAnnotationChecker]: L418-2 has no Hoare annotation [2020-07-28 18:58:39,511 WARN L170 areAnnotationChecker]: L77 has no Hoare annotation [2020-07-28 18:58:39,511 WARN L170 areAnnotationChecker]: L77 has no Hoare annotation [2020-07-28 18:58:39,511 WARN L170 areAnnotationChecker]: L364-1 has no Hoare annotation [2020-07-28 18:58:39,511 WARN L170 areAnnotationChecker]: L307-3 has no Hoare annotation [2020-07-28 18:58:39,511 WARN L170 areAnnotationChecker]: L307-3 has no Hoare annotation [2020-07-28 18:58:39,512 WARN L170 areAnnotationChecker]: L258-1 has no Hoare annotation [2020-07-28 18:58:39,512 WARN L170 areAnnotationChecker]: L418-3 has no Hoare annotation [2020-07-28 18:58:39,512 WARN L170 areAnnotationChecker]: L374 has no Hoare annotation [2020-07-28 18:58:39,512 WARN L170 areAnnotationChecker]: L374 has no Hoare annotation [2020-07-28 18:58:39,512 WARN L170 areAnnotationChecker]: L307-5 has no Hoare annotation [2020-07-28 18:58:39,512 WARN L170 areAnnotationChecker]: L422-2 has no Hoare annotation [2020-07-28 18:58:39,512 WARN L170 areAnnotationChecker]: L422-2 has no Hoare annotation [2020-07-28 18:58:39,513 WARN L170 areAnnotationChecker]: L447-2 has no Hoare annotation [2020-07-28 18:58:39,513 WARN L170 areAnnotationChecker]: L447-2 has no Hoare annotation [2020-07-28 18:58:39,513 WARN L170 areAnnotationChecker]: L447-2 has no Hoare annotation [2020-07-28 18:58:39,514 WARN L170 areAnnotationChecker]: L380-1 has no Hoare annotation [2020-07-28 18:58:39,514 WARN L170 areAnnotationChecker]: L380-1 has no Hoare annotation [2020-07-28 18:58:39,514 WARN L170 areAnnotationChecker]: L380 has no Hoare annotation [2020-07-28 18:58:39,515 WARN L170 areAnnotationChecker]: L380 has no Hoare annotation [2020-07-28 18:58:39,515 WARN L170 areAnnotationChecker]: L313-1 has no Hoare annotation [2020-07-28 18:58:39,515 WARN L170 areAnnotationChecker]: L405-1 has no Hoare annotation [2020-07-28 18:58:39,515 WARN L170 areAnnotationChecker]: L405-1 has no Hoare annotation [2020-07-28 18:58:39,515 WARN L170 areAnnotationChecker]: L448 has no Hoare annotation [2020-07-28 18:58:39,515 WARN L170 areAnnotationChecker]: L53 has no Hoare annotation [2020-07-28 18:58:39,515 WARN L170 areAnnotationChecker]: L53 has no Hoare annotation [2020-07-28 18:58:39,516 WARN L170 areAnnotationChecker]: L155 has no Hoare annotation [2020-07-28 18:58:39,516 WARN L170 areAnnotationChecker]: L155 has no Hoare annotation [2020-07-28 18:58:39,516 WARN L170 areAnnotationChecker]: L321 has no Hoare annotation [2020-07-28 18:58:39,516 WARN L170 areAnnotationChecker]: L321 has no Hoare annotation [2020-07-28 18:58:39,516 WARN L170 areAnnotationChecker]: L191-1 has no Hoare annotation [2020-07-28 18:58:39,516 WARN L170 areAnnotationChecker]: L191-1 has no Hoare annotation [2020-07-28 18:58:39,516 WARN L170 areAnnotationChecker]: L451 has no Hoare annotation [2020-07-28 18:58:39,516 WARN L170 areAnnotationChecker]: L451 has no Hoare annotation [2020-07-28 18:58:39,516 WARN L170 areAnnotationChecker]: L187 has no Hoare annotation [2020-07-28 18:58:39,517 WARN L170 areAnnotationChecker]: L187 has no Hoare annotation [2020-07-28 18:58:39,517 WARN L170 areAnnotationChecker]: L162 has no Hoare annotation [2020-07-28 18:58:39,517 WARN L170 areAnnotationChecker]: L321-1 has no Hoare annotation [2020-07-28 18:58:39,517 WARN L170 areAnnotationChecker]: L90-2 has no Hoare annotation [2020-07-28 18:58:39,517 WARN L170 areAnnotationChecker]: L451-1 has no Hoare annotation [2020-07-28 18:58:39,517 WARN L170 areAnnotationChecker]: L451-1 has no Hoare annotation [2020-07-28 18:58:39,518 WARN L170 areAnnotationChecker]: L130 has no Hoare annotation [2020-07-28 18:58:39,518 WARN L170 areAnnotationChecker]: L130 has no Hoare annotation [2020-07-28 18:58:39,518 WARN L170 areAnnotationChecker]: L90-1 has no Hoare annotation [2020-07-28 18:58:39,518 WARN L170 areAnnotationChecker]: L249-1 has no Hoare annotation [2020-07-28 18:58:39,518 WARN L170 areAnnotationChecker]: L53-6 has no Hoare annotation [2020-07-28 18:58:39,518 WARN L170 areAnnotationChecker]: L53-6 has no Hoare annotation [2020-07-28 18:58:39,518 WARN L170 areAnnotationChecker]: L155-3 has no Hoare annotation [2020-07-28 18:58:39,518 WARN L170 areAnnotationChecker]: L155-3 has no Hoare annotation [2020-07-28 18:58:39,518 WARN L170 areAnnotationChecker]: L135 has no Hoare annotation [2020-07-28 18:58:39,519 WARN L170 areAnnotationChecker]: L418 has no Hoare annotation [2020-07-28 18:58:39,519 WARN L170 areAnnotationChecker]: L418 has no Hoare annotation [2020-07-28 18:58:39,519 WARN L170 areAnnotationChecker]: L224-2 has no Hoare annotation [2020-07-28 18:58:39,519 WARN L170 areAnnotationChecker]: L224-2 has no Hoare annotation [2020-07-28 18:58:39,519 WARN L170 areAnnotationChecker]: L187-2 has no Hoare annotation [2020-07-28 18:58:39,519 WARN L170 areAnnotationChecker]: L187-2 has no Hoare annotation [2020-07-28 18:58:39,519 WARN L170 areAnnotationChecker]: L162-2 has no Hoare annotation [2020-07-28 18:58:39,519 WARN L170 areAnnotationChecker]: L307 has no Hoare annotation [2020-07-28 18:58:39,519 WARN L170 areAnnotationChecker]: L307 has no Hoare annotation [2020-07-28 18:58:39,519 WARN L170 areAnnotationChecker]: L258 has no Hoare annotation [2020-07-28 18:58:39,520 WARN L170 areAnnotationChecker]: L130-2 has no Hoare annotation [2020-07-28 18:58:39,520 WARN L170 areAnnotationChecker]: L130-2 has no Hoare annotation [2020-07-28 18:58:39,520 WARN L170 areAnnotationChecker]: L90-5 has no Hoare annotation [2020-07-28 18:58:39,520 WARN L170 areAnnotationChecker]: L307-2 has no Hoare annotation [2020-07-28 18:58:39,520 WARN L170 areAnnotationChecker]: L422 has no Hoare annotation [2020-07-28 18:58:39,520 WARN L170 areAnnotationChecker]: L422 has no Hoare annotation [2020-07-28 18:58:39,520 WARN L170 areAnnotationChecker]: L135-2 has no Hoare annotation [2020-07-28 18:58:39,520 WARN L170 areAnnotationChecker]: L418-4 has no Hoare annotation [2020-07-28 18:58:39,520 WARN L170 areAnnotationChecker]: L418-4 has no Hoare annotation [2020-07-28 18:58:39,520 WARN L170 areAnnotationChecker]: L313 has no Hoare annotation [2020-07-28 18:58:39,521 WARN L170 areAnnotationChecker]: L405 has no Hoare annotation [2020-07-28 18:58:39,521 WARN L170 areAnnotationChecker]: L405 has no Hoare annotation [2020-07-28 18:58:39,521 WARN L170 areAnnotationChecker]: L307-6 has no Hoare annotation [2020-07-28 18:58:39,521 WARN L170 areAnnotationChecker]: L307-6 has no Hoare annotation [2020-07-28 18:58:39,521 WARN L170 areAnnotationChecker]: L258-2 has no Hoare annotation [2020-07-28 18:58:39,521 WARN L170 areAnnotationChecker]: L418-5 has no Hoare annotation [2020-07-28 18:58:39,521 WARN L170 areAnnotationChecker]: L191 has no Hoare annotation [2020-07-28 18:58:39,521 WARN L170 areAnnotationChecker]: L191 has no Hoare annotation [2020-07-28 18:58:39,521 WARN L170 areAnnotationChecker]: L307-8 has no Hoare annotation [2020-07-28 18:58:39,522 WARN L170 areAnnotationChecker]: L422-4 has no Hoare annotation [2020-07-28 18:58:39,522 WARN L170 areAnnotationChecker]: L422-4 has no Hoare annotation [2020-07-28 18:58:39,522 WARN L170 areAnnotationChecker]: L90 has no Hoare annotation [2020-07-28 18:58:39,522 WARN L170 areAnnotationChecker]: L313-2 has no Hoare annotation [2020-07-28 18:58:39,522 WARN L170 areAnnotationChecker]: L405-2 has no Hoare annotation [2020-07-28 18:58:39,522 WARN L170 areAnnotationChecker]: L405-2 has no Hoare annotation [2020-07-28 18:58:39,522 WARN L170 areAnnotationChecker]: L249 has no Hoare annotation [2020-07-28 18:58:39,522 WARN L170 areAnnotationChecker]: L191-2 has no Hoare annotation [2020-07-28 18:58:39,522 WARN L170 areAnnotationChecker]: L191-2 has no Hoare annotation [2020-07-28 18:58:39,522 WARN L170 areAnnotationChecker]: L224 has no Hoare annotation [2020-07-28 18:58:39,523 WARN L170 areAnnotationChecker]: L224 has no Hoare annotation [2020-07-28 18:58:39,523 WARN L170 areAnnotationChecker]: L90-4 has no Hoare annotation [2020-07-28 18:58:39,523 WARN L170 areAnnotationChecker]: L249-2 has no Hoare annotation [2020-07-28 18:58:39,523 WARN L170 areAnnotationChecker]: L224-4 has no Hoare annotation [2020-07-28 18:58:39,523 WARN L170 areAnnotationChecker]: L224-4 has no Hoare annotation [2020-07-28 18:58:39,523 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-28 18:58:39,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 06:58:39 BoogieIcfgContainer [2020-07-28 18:58:39,527 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 18:58:39,527 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 18:58:39,527 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 18:58:39,527 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 18:58:39,528 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 06:58:19" (3/4) ... [2020-07-28 18:58:39,531 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-07-28 18:58:39,717 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 18:58:39,717 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 18:58:39,720 INFO L168 Benchmark]: Toolchain (without parser) took 22391.72 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 423.6 MB). Free memory was 961.6 MB in the beginning and 930.6 MB in the end (delta: 30.9 MB). Peak memory consumption was 454.6 MB. Max. memory is 11.5 GB. [2020-07-28 18:58:39,721 INFO L168 Benchmark]: CDTParser took 0.79 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 18:58:39,721 INFO L168 Benchmark]: CACSL2BoogieTranslator took 758.61 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 90.7 MB). Free memory was 956.2 MB in the beginning and 1.1 GB in the end (delta: -108.4 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. [2020-07-28 18:58:39,721 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.15 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 18:58:39,722 INFO L168 Benchmark]: Boogie Preprocessor took 51.90 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2020-07-28 18:58:39,722 INFO L168 Benchmark]: RCFGBuilder took 1534.67 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 906.5 MB in the end (delta: 151.2 MB). Peak memory consumption was 151.2 MB. Max. memory is 11.5 GB. [2020-07-28 18:58:39,723 INFO L168 Benchmark]: TraceAbstraction took 19753.55 ms. Allocated memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: 332.9 MB). Free memory was 906.5 MB in the beginning and 983.5 MB in the end (delta: -77.1 MB). Peak memory consumption was 255.9 MB. Max. memory is 11.5 GB. [2020-07-28 18:58:39,723 INFO L168 Benchmark]: Witness Printer took 190.35 ms. Allocated memory is still 1.5 GB. Free memory was 983.5 MB in the beginning and 930.6 MB in the end (delta: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 11.5 GB. [2020-07-28 18:58:39,725 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.79 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 758.61 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 90.7 MB). Free memory was 956.2 MB in the beginning and 1.1 GB in the end (delta: -108.4 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 94.15 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 51.90 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1534.67 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 906.5 MB in the end (delta: 151.2 MB). Peak memory consumption was 151.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 19753.55 ms. Allocated memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: 332.9 MB). Free memory was 906.5 MB in the beginning and 983.5 MB in the end (delta: -77.1 MB). Peak memory consumption was 255.9 MB. Max. memory is 11.5 GB. * Witness Printer took 190.35 ms. Allocated memory is still 1.5 GB. Free memory was 983.5 MB in the beginning and 930.6 MB in the end (delta: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 405]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L147] int pumpRunning = 0; [L148] int systemActive = 1; [L436] int cleanupTimeShifts = 4; [L704] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L512] int retValue_acc ; [L513] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L927] int retValue_acc ; [L930] retValue_acc = 1 [L931] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L519] tmp = valid_product() [L521] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L335] int splverifierCounter ; [L336] int tmp ; [L337] int tmp___0 ; [L338] int tmp___1 ; [L339] int tmp___2 ; [L342] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L344] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L346] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L352] tmp = __VERIFIER_nondet_int() [L354] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L65] COND TRUE waterLevel < 2 [L66] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L362] tmp___0 = __VERIFIER_nondet_int() [L364] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L372] tmp___2 = __VERIFIER_nondet_int() [L374] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L155] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L162] COND TRUE \read(systemActive) [L184] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L187] COND TRUE ! pumpRunning [L299] int retValue_acc ; [L300] int tmp ; [L301] int tmp___0 ; [L127] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L130] COND FALSE !(waterLevel < 2) [L134] retValue_acc = 0 [L135] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L305] tmp = isHighWaterSensorDry() [L307] COND FALSE !(\read(tmp)) [L310] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L312] retValue_acc = tmp___0 [L313] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L189] tmp = isHighWaterLevel() [L191] COND TRUE \read(tmp) [L218] int tmp ; [L243] int retValue_acc ; [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L247] retValue_acc = isMethaneLevelCritical() [L249] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L222] tmp = isMethaneAlarm() [L224] COND FALSE !(\read(tmp)) [L212] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L411] int tmp ; [L412] int tmp___0 ; [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L416] tmp = isMethaneLevelCritical() [L418] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L344] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L346] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L352] tmp = __VERIFIER_nondet_int() [L354] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L362] tmp___0 = __VERIFIER_nondet_int() [L364] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L77] COND FALSE !(\read(methaneLevelCritical)) [L80] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L372] tmp___2 = __VERIFIER_nondet_int() [L374] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L155] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L53] COND TRUE waterLevel > 0 [L54] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L162] COND TRUE \read(systemActive) [L184] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L187] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L411] int tmp ; [L412] int tmp___0 ; [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L416] tmp = isMethaneLevelCritical() [L418] COND TRUE \read(tmp) [L254] int retValue_acc ; [L257] retValue_acc = pumpRunning [L258] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L420] tmp___0 = isPumpRunning() [L422] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L405] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 89 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 19.3s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 14.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 870 SDtfs, 1415 SDslu, 1726 SDs, 0 SdLazy, 217 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 83 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=236occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 1157 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 311 NumberOfCodeBlocks, 311 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 252 ConstructedInterpolants, 0 QuantifiedInterpolants, 13787 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...