./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product44.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_product44.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 b18fc9f0044b48e81511337a91deb94a0dfeec26 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 18:58:16,655 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 18:58:16,660 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 18:58:16,673 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 18:58:16,674 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 18:58:16,675 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 18:58:16,677 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 18:58:16,679 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 18:58:16,681 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 18:58:16,682 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 18:58:16,683 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 18:58:16,685 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 18:58:16,685 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 18:58:16,686 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 18:58:16,688 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 18:58:16,689 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 18:58:16,690 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 18:58:16,691 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 18:58:16,693 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 18:58:16,695 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 18:58:16,697 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 18:58:16,698 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 18:58:16,700 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 18:58:16,701 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 18:58:16,704 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 18:58:16,705 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 18:58:16,705 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 18:58:16,706 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 18:58:16,707 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 18:58:16,708 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 18:58:16,708 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 18:58:16,709 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 18:58:16,710 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 18:58:16,711 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 18:58:16,712 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 18:58:16,713 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 18:58:16,714 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 18:58:16,714 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 18:58:16,714 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 18:58:16,715 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 18:58:16,716 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 18:58:16,717 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 18:58:16,732 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 18:58:16,733 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 18:58:16,734 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 18:58:16,734 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 18:58:16,735 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 18:58:16,735 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 18:58:16,735 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 18:58:16,736 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 18:58:16,736 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 18:58:16,736 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 18:58:16,736 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 18:58:16,737 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 18:58:16,737 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 18:58:16,737 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 18:58:16,738 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 18:58:16,738 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 18:58:16,738 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 18:58:16,738 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 18:58:16,739 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 18:58:16,739 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 18:58:16,739 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 18:58:16,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 18:58:16,740 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 18:58:16,740 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 18:58:16,740 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 18:58:16,741 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 18:58:16,741 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 18:58:16,741 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 18:58:16,742 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 18:58:16,742 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 -> b18fc9f0044b48e81511337a91deb94a0dfeec26 [2020-07-28 18:58:17,101 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 18:58:17,115 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 18:58:17,119 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 18:58:17,120 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 18:58:17,121 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 18:58:17,122 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product44.cil.c [2020-07-28 18:58:17,185 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6c512136/f64d62758fd74946a62a584d50f170d4/FLAG9b6a6a2eb [2020-07-28 18:58:17,656 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 18:58:17,657 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product44.cil.c [2020-07-28 18:58:17,671 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6c512136/f64d62758fd74946a62a584d50f170d4/FLAG9b6a6a2eb [2020-07-28 18:58:17,973 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6c512136/f64d62758fd74946a62a584d50f170d4 [2020-07-28 18:58:17,978 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 18:58:17,982 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 18:58:17,983 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 18:58:17,985 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 18:58:17,988 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 18:58:17,990 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 06:58:17" (1/1) ... [2020-07-28 18:58:17,993 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@770c4cd1 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 18:58:17,994 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 06:58:17" (1/1) ... [2020-07-28 18:58:18,002 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 18:58:18,057 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 18:58:18,501 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 18:58:18,592 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 18:58:18,681 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 18:58:18,720 INFO L208 MainTranslator]: Completed translation [2020-07-28 18:58:18,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:58:18 WrapperNode [2020-07-28 18:58:18,721 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 18:58:18,722 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 18:58:18,725 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 18:58:18,725 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 18:58:18,734 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 18:58:18,755 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 18:58:18,819 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 18:58:18,820 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 18:58:18,820 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 18:58:18,820 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 18:58:18,831 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 18:58:18,831 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 18:58:18,836 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 18:58:18,837 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 18:58:18,853 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 18:58:18,868 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 18:58:18,871 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 18:58:18,876 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 18:58:18,877 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 18:58:18,877 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 18:58:18,877 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 18:58:18,878 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 18:58:18,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 18:58:18,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-28 18:58:18,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 18:58:18,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 18:58:20,365 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 18:58:20,366 INFO L295 CfgBuilder]: Removed 120 assume(true) statements. [2020-07-28 18:58:20,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 06:58:20 BoogieIcfgContainer [2020-07-28 18:58:20,373 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 18:58:20,374 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 18:58:20,374 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 18:58:20,378 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 18:58:20,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 06:58:17" (1/3) ... [2020-07-28 18:58:20,379 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68c44d93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 06:58:20, skipping insertion in model container [2020-07-28 18:58:20,380 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 18:58:20,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68c44d93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 06:58:20, skipping insertion in model container [2020-07-28 18:58:20,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 06:58:20" (3/3) ... [2020-07-28 18:58:20,383 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product44.cil.c [2020-07-28 18:58:20,394 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 18:58:20,402 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-07-28 18:58:20,417 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-07-28 18:58:20,443 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 18:58:20,443 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 18:58:20,444 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 18:58:20,444 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 18:58:20,444 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 18:58:20,445 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 18:58:20,445 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 18:58:20,445 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 18:58:20,465 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states. [2020-07-28 18:58:20,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-07-28 18:58:20,473 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:58:20,474 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 18:58:20,474 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:58:20,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:58:20,480 INFO L82 PathProgramCache]: Analyzing trace with hash 1782116946, now seen corresponding path program 1 times [2020-07-28 18:58:20,489 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:58:20,490 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84182643] [2020-07-28 18:58:20,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:58:20,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:58:20,794 INFO L280 TraceCheckUtils]: 0: Hoare triple {92#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(110, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 2 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 3 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(80, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(117, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(109, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(112, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(32, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(77, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(101, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(116, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(104, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string64.base, #t~string64.offset, 1);call write~init~int(82, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(73, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(84, #t~string64.base, 3 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 4 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(75, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 1 + #t~string68.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; {92#true} is VALID [2020-07-28 18:58:20,795 INFO L280 TraceCheckUtils]: 1: Hoare triple {92#true} havoc main_#res;havoc main_#t~ret72, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; {92#true} is VALID [2020-07-28 18:58:20,796 INFO L280 TraceCheckUtils]: 2: Hoare triple {92#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; {92#true} is VALID [2020-07-28 18:58:20,796 INFO L280 TraceCheckUtils]: 3: Hoare triple {92#true} main_#t~ret72 := valid_product_#res;assume -2147483648 <= main_#t~ret72 && main_#t~ret72 <= 2147483647;main_~tmp~8 := main_#t~ret72;havoc main_#t~ret72; {92#true} is VALID [2020-07-28 18:58:20,797 INFO L280 TraceCheckUtils]: 4: Hoare triple {92#true} assume 0 != main_~tmp~8; {92#true} is VALID [2020-07-28 18:58:20,798 INFO L280 TraceCheckUtils]: 5: Hoare triple {92#true} havoc test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {92#true} is VALID [2020-07-28 18:58:20,799 INFO L280 TraceCheckUtils]: 6: Hoare triple {92#true} assume false; {93#false} is VALID [2020-07-28 18:58:20,799 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 18:58:20,800 INFO L280 TraceCheckUtils]: 8: Hoare triple {93#false} assume !(0 != ~pumpRunning~0); {93#false} is VALID [2020-07-28 18:58:20,800 INFO L280 TraceCheckUtils]: 9: Hoare triple {93#false} assume !(0 != ~systemActive~0); {93#false} is VALID [2020-07-28 18:58:20,800 INFO L280 TraceCheckUtils]: 10: Hoare triple {93#false} havoc __utac_acc__Specification1_spec__1_#t~ret69, __utac_acc__Specification1_spec__1_#t~ret70, __utac_acc__Specification1_spec__1_~tmp~7, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~7;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; {93#false} is VALID [2020-07-28 18:58:20,801 INFO L280 TraceCheckUtils]: 11: Hoare triple {93#false} __utac_acc__Specification1_spec__1_#t~ret69 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret69 && __utac_acc__Specification1_spec__1_#t~ret69 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp~7 := __utac_acc__Specification1_spec__1_#t~ret69;havoc __utac_acc__Specification1_spec__1_#t~ret69; {93#false} is VALID [2020-07-28 18:58:20,802 INFO L280 TraceCheckUtils]: 12: Hoare triple {93#false} assume 0 != __utac_acc__Specification1_spec__1_~tmp~7;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 18:58:20,802 INFO L280 TraceCheckUtils]: 13: Hoare triple {93#false} __utac_acc__Specification1_spec__1_#t~ret70 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret70 && __utac_acc__Specification1_spec__1_#t~ret70 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp___0~2 := __utac_acc__Specification1_spec__1_#t~ret70;havoc __utac_acc__Specification1_spec__1_#t~ret70; {93#false} is VALID [2020-07-28 18:58:20,803 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 18:58:20,804 INFO L280 TraceCheckUtils]: 15: Hoare triple {93#false} assume !false; {93#false} is VALID [2020-07-28 18:58:20,809 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 18:58:20,810 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84182643] [2020-07-28 18:58:20,812 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:58:20,812 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 18:58:20,813 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916118309] [2020-07-28 18:58:20,821 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-07-28 18:58:20,823 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:58:20,829 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 18:58:20,874 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 18:58:20,874 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 18:58:20,875 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:58:20,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 18:58:20,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 18:58:20,891 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 2 states. [2020-07-28 18:58:21,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:21,153 INFO L93 Difference]: Finished difference Result 172 states and 257 transitions. [2020-07-28 18:58:21,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 18:58:21,154 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-07-28 18:58:21,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:58:21,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 18:58:21,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 257 transitions. [2020-07-28 18:58:21,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 18:58:21,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 257 transitions. [2020-07-28 18:58:21,173 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 257 transitions. [2020-07-28 18:58:21,528 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 18:58:21,551 INFO L225 Difference]: With dead ends: 172 [2020-07-28 18:58:21,551 INFO L226 Difference]: Without dead ends: 85 [2020-07-28 18:58:21,559 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 18:58:21,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-07-28 18:58:21,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-07-28 18:58:21,628 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:58:21,629 INFO L82 GeneralOperation]: Start isEquivalent. First operand 85 states. Second operand 85 states. [2020-07-28 18:58:21,630 INFO L74 IsIncluded]: Start isIncluded. First operand 85 states. Second operand 85 states. [2020-07-28 18:58:21,630 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 85 states. [2020-07-28 18:58:21,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:21,641 INFO L93 Difference]: Finished difference Result 85 states and 120 transitions. [2020-07-28 18:58:21,642 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 120 transitions. [2020-07-28 18:58:21,643 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:21,644 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:21,644 INFO L74 IsIncluded]: Start isIncluded. First operand 85 states. Second operand 85 states. [2020-07-28 18:58:21,645 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 85 states. [2020-07-28 18:58:21,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:21,654 INFO L93 Difference]: Finished difference Result 85 states and 120 transitions. [2020-07-28 18:58:21,655 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 120 transitions. [2020-07-28 18:58:21,656 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:21,656 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:21,656 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:58:21,657 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:58:21,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-07-28 18:58:21,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 120 transitions. [2020-07-28 18:58:21,664 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 120 transitions. Word has length 16 [2020-07-28 18:58:21,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:58:21,665 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 120 transitions. [2020-07-28 18:58:21,665 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 18:58:21,666 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 120 transitions. [2020-07-28 18:58:21,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-28 18:58:21,667 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:58:21,667 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 18:58:21,668 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 18:58:21,668 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:58:21,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:58:21,669 INFO L82 PathProgramCache]: Analyzing trace with hash 735360049, now seen corresponding path program 1 times [2020-07-28 18:58:21,669 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:58:21,669 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690073734] [2020-07-28 18:58:21,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:58:21,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:58:21,832 INFO L280 TraceCheckUtils]: 0: Hoare triple {632#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(110, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 2 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 3 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(80, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(117, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(109, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(112, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(32, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(77, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(101, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(116, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(104, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string64.base, #t~string64.offset, 1);call write~init~int(82, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(73, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(84, #t~string64.base, 3 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 4 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(75, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 1 + #t~string68.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; {632#true} is VALID [2020-07-28 18:58:21,833 INFO L280 TraceCheckUtils]: 1: Hoare triple {632#true} havoc main_#res;havoc main_#t~ret72, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; {632#true} is VALID [2020-07-28 18:58:21,834 INFO L280 TraceCheckUtils]: 2: Hoare triple {632#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; {632#true} is VALID [2020-07-28 18:58:21,834 INFO L280 TraceCheckUtils]: 3: Hoare triple {632#true} main_#t~ret72 := valid_product_#res;assume -2147483648 <= main_#t~ret72 && main_#t~ret72 <= 2147483647;main_~tmp~8 := main_#t~ret72;havoc main_#t~ret72; {632#true} is VALID [2020-07-28 18:58:21,834 INFO L280 TraceCheckUtils]: 4: Hoare triple {632#true} assume 0 != main_~tmp~8; {632#true} is VALID [2020-07-28 18:58:21,836 INFO L280 TraceCheckUtils]: 5: Hoare triple {632#true} havoc test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;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 18:58:21,837 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 18:58:21,838 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 18:58:21,838 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 18:58:21,838 INFO L280 TraceCheckUtils]: 9: Hoare triple {633#false} assume !(0 != ~pumpRunning~0); {633#false} is VALID [2020-07-28 18:58:21,839 INFO L280 TraceCheckUtils]: 10: Hoare triple {633#false} assume !(0 != ~systemActive~0); {633#false} is VALID [2020-07-28 18:58:21,839 INFO L280 TraceCheckUtils]: 11: Hoare triple {633#false} havoc __utac_acc__Specification1_spec__1_#t~ret69, __utac_acc__Specification1_spec__1_#t~ret70, __utac_acc__Specification1_spec__1_~tmp~7, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~7;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; {633#false} is VALID [2020-07-28 18:58:21,839 INFO L280 TraceCheckUtils]: 12: Hoare triple {633#false} __utac_acc__Specification1_spec__1_#t~ret69 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret69 && __utac_acc__Specification1_spec__1_#t~ret69 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp~7 := __utac_acc__Specification1_spec__1_#t~ret69;havoc __utac_acc__Specification1_spec__1_#t~ret69; {633#false} is VALID [2020-07-28 18:58:21,840 INFO L280 TraceCheckUtils]: 13: Hoare triple {633#false} assume 0 != __utac_acc__Specification1_spec__1_~tmp~7;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 18:58:21,840 INFO L280 TraceCheckUtils]: 14: Hoare triple {633#false} __utac_acc__Specification1_spec__1_#t~ret70 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret70 && __utac_acc__Specification1_spec__1_#t~ret70 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp___0~2 := __utac_acc__Specification1_spec__1_#t~ret70;havoc __utac_acc__Specification1_spec__1_#t~ret70; {633#false} is VALID [2020-07-28 18:58:21,840 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 18:58:21,841 INFO L280 TraceCheckUtils]: 16: Hoare triple {633#false} assume !false; {633#false} is VALID [2020-07-28 18:58:21,843 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 18:58:21,844 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690073734] [2020-07-28 18:58:21,844 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:58:21,844 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 18:58:21,845 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949174879] [2020-07-28 18:58:21,846 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-07-28 18:58:21,847 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:58:21,848 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 18:58:21,879 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 18:58:21,879 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 18:58:21,880 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:58:21,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 18:58:21,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 18:58:21,881 INFO L87 Difference]: Start difference. First operand 85 states and 120 transitions. Second operand 3 states. [2020-07-28 18:58:22,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:22,103 INFO L93 Difference]: Finished difference Result 85 states and 120 transitions. [2020-07-28 18:58:22,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 18:58:22,103 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-07-28 18:58:22,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:58:22,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 18:58:22,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 120 transitions. [2020-07-28 18:58:22,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 18:58:22,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 120 transitions. [2020-07-28 18:58:22,111 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 120 transitions. [2020-07-28 18:58:22,318 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 18:58:22,319 INFO L225 Difference]: With dead ends: 85 [2020-07-28 18:58:22,320 INFO L226 Difference]: Without dead ends: 39 [2020-07-28 18:58:22,321 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 18:58:22,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-07-28 18:58:22,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-07-28 18:58:22,341 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:58:22,341 INFO L82 GeneralOperation]: Start isEquivalent. First operand 39 states. Second operand 39 states. [2020-07-28 18:58:22,342 INFO L74 IsIncluded]: Start isIncluded. First operand 39 states. Second operand 39 states. [2020-07-28 18:58:22,342 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 39 states. [2020-07-28 18:58:22,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:22,344 INFO L93 Difference]: Finished difference Result 39 states and 55 transitions. [2020-07-28 18:58:22,344 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 55 transitions. [2020-07-28 18:58:22,345 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:22,345 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:22,345 INFO L74 IsIncluded]: Start isIncluded. First operand 39 states. Second operand 39 states. [2020-07-28 18:58:22,345 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 39 states. [2020-07-28 18:58:22,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:22,347 INFO L93 Difference]: Finished difference Result 39 states and 55 transitions. [2020-07-28 18:58:22,347 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 55 transitions. [2020-07-28 18:58:22,348 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:22,348 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:22,348 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:58:22,348 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:58:22,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-07-28 18:58:22,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 55 transitions. [2020-07-28 18:58:22,350 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 55 transitions. Word has length 17 [2020-07-28 18:58:22,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:58:22,350 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 55 transitions. [2020-07-28 18:58:22,351 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 18:58:22,351 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 55 transitions. [2020-07-28 18:58:22,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-07-28 18:58:22,352 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:58:22,352 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 18:58:22,352 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 18:58:22,352 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:58:22,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:58:22,353 INFO L82 PathProgramCache]: Analyzing trace with hash -1297648259, now seen corresponding path program 1 times [2020-07-28 18:58:22,353 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:58:22,353 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512895619] [2020-07-28 18:58:22,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:58:22,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:58:22,476 INFO L280 TraceCheckUtils]: 0: Hoare triple {891#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(110, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 2 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 3 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(80, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(117, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(109, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(112, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(32, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(77, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(101, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(116, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(104, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string64.base, #t~string64.offset, 1);call write~init~int(82, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(73, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(84, #t~string64.base, 3 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 4 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(75, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 1 + #t~string68.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; {891#true} is VALID [2020-07-28 18:58:22,476 INFO L280 TraceCheckUtils]: 1: Hoare triple {891#true} havoc main_#res;havoc main_#t~ret72, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; {891#true} is VALID [2020-07-28 18:58:22,477 INFO L280 TraceCheckUtils]: 2: Hoare triple {891#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; {893#(= 1 |ULTIMATE.start_valid_product_#res|)} is VALID [2020-07-28 18:58:22,478 INFO L280 TraceCheckUtils]: 3: Hoare triple {893#(= 1 |ULTIMATE.start_valid_product_#res|)} main_#t~ret72 := valid_product_#res;assume -2147483648 <= main_#t~ret72 && main_#t~ret72 <= 2147483647;main_~tmp~8 := main_#t~ret72;havoc main_#t~ret72; {894#(= 1 ULTIMATE.start_main_~tmp~8)} is VALID [2020-07-28 18:58:22,479 INFO L280 TraceCheckUtils]: 4: Hoare triple {894#(= 1 ULTIMATE.start_main_~tmp~8)} assume 0 != main_~tmp~8; {891#true} is VALID [2020-07-28 18:58:22,479 INFO L280 TraceCheckUtils]: 5: Hoare triple {891#true} havoc test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {891#true} is VALID [2020-07-28 18:58:22,479 INFO L280 TraceCheckUtils]: 6: Hoare triple {891#true} assume !false; {891#true} is VALID [2020-07-28 18:58:22,480 INFO L280 TraceCheckUtils]: 7: Hoare triple {891#true} assume test_~splverifierCounter~0 < 4; {891#true} is VALID [2020-07-28 18:58:22,480 INFO L280 TraceCheckUtils]: 8: Hoare triple {891#true} assume -2147483648 <= test_#t~nondet35 && test_#t~nondet35 <= 2147483647;test_~tmp~3 := test_#t~nondet35;havoc test_#t~nondet35; {891#true} is VALID [2020-07-28 18:58:22,480 INFO L280 TraceCheckUtils]: 9: Hoare triple {891#true} assume !(0 != test_~tmp~3); {891#true} is VALID [2020-07-28 18:58:22,480 INFO L280 TraceCheckUtils]: 10: Hoare triple {891#true} assume -2147483648 <= test_#t~nondet36 && test_#t~nondet36 <= 2147483647;test_~tmp___0~0 := test_#t~nondet36;havoc test_#t~nondet36; {891#true} is VALID [2020-07-28 18:58:22,481 INFO L280 TraceCheckUtils]: 11: Hoare triple {891#true} assume !(0 != test_~tmp___0~0); {891#true} is VALID [2020-07-28 18:58:22,481 INFO L280 TraceCheckUtils]: 12: Hoare triple {891#true} assume -2147483648 <= test_#t~nondet37 && test_#t~nondet37 <= 2147483647;test_~tmp___2~0 := test_#t~nondet37;havoc test_#t~nondet37; {891#true} is VALID [2020-07-28 18:58:22,482 INFO L280 TraceCheckUtils]: 13: Hoare triple {891#true} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {895#(not (= 0 ~systemActive~0))} is VALID [2020-07-28 18:58:22,483 INFO L280 TraceCheckUtils]: 14: Hoare triple {895#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {895#(not (= 0 ~systemActive~0))} is VALID [2020-07-28 18:58:22,484 INFO L280 TraceCheckUtils]: 15: Hoare triple {895#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {892#false} is VALID [2020-07-28 18:58:22,484 INFO L280 TraceCheckUtils]: 16: Hoare triple {892#false} havoc __utac_acc__Specification1_spec__1_#t~ret69, __utac_acc__Specification1_spec__1_#t~ret70, __utac_acc__Specification1_spec__1_~tmp~7, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~7;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; {892#false} is VALID [2020-07-28 18:58:22,485 INFO L280 TraceCheckUtils]: 17: Hoare triple {892#false} __utac_acc__Specification1_spec__1_#t~ret69 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret69 && __utac_acc__Specification1_spec__1_#t~ret69 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp~7 := __utac_acc__Specification1_spec__1_#t~ret69;havoc __utac_acc__Specification1_spec__1_#t~ret69; {892#false} is VALID [2020-07-28 18:58:22,485 INFO L280 TraceCheckUtils]: 18: Hoare triple {892#false} assume 0 != __utac_acc__Specification1_spec__1_~tmp~7;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 18:58:22,485 INFO L280 TraceCheckUtils]: 19: Hoare triple {892#false} __utac_acc__Specification1_spec__1_#t~ret70 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret70 && __utac_acc__Specification1_spec__1_#t~ret70 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp___0~2 := __utac_acc__Specification1_spec__1_#t~ret70;havoc __utac_acc__Specification1_spec__1_#t~ret70; {892#false} is VALID [2020-07-28 18:58:22,486 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 18:58:22,486 INFO L280 TraceCheckUtils]: 21: Hoare triple {892#false} assume !false; {892#false} is VALID [2020-07-28 18:58:22,488 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 18:58:22,488 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512895619] [2020-07-28 18:58:22,488 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:58:22,489 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-28 18:58:22,489 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295540751] [2020-07-28 18:58:22,489 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-07-28 18:58:22,490 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:58:22,490 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 18:58:22,521 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 18:58:22,521 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 18:58:22,521 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:58:22,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 18:58:22,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-28 18:58:22,522 INFO L87 Difference]: Start difference. First operand 39 states and 55 transitions. Second operand 5 states. [2020-07-28 18:58:23,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:23,078 INFO L93 Difference]: Finished difference Result 95 states and 138 transitions. [2020-07-28 18:58:23,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-28 18:58:23,079 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-07-28 18:58:23,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:58:23,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 18:58:23,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 138 transitions. [2020-07-28 18:58:23,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 18:58:23,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 138 transitions. [2020-07-28 18:58:23,085 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 138 transitions. [2020-07-28 18:58:23,255 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 138 edges. 138 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:58:23,260 INFO L225 Difference]: With dead ends: 95 [2020-07-28 18:58:23,260 INFO L226 Difference]: Without dead ends: 62 [2020-07-28 18:58:23,261 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-28 18:58:23,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-07-28 18:58:23,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 58. [2020-07-28 18:58:23,320 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:58:23,320 INFO L82 GeneralOperation]: Start isEquivalent. First operand 62 states. Second operand 58 states. [2020-07-28 18:58:23,320 INFO L74 IsIncluded]: Start isIncluded. First operand 62 states. Second operand 58 states. [2020-07-28 18:58:23,320 INFO L87 Difference]: Start difference. First operand 62 states. Second operand 58 states. [2020-07-28 18:58:23,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:23,323 INFO L93 Difference]: Finished difference Result 62 states and 88 transitions. [2020-07-28 18:58:23,324 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 88 transitions. [2020-07-28 18:58:23,324 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:23,325 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:23,325 INFO L74 IsIncluded]: Start isIncluded. First operand 58 states. Second operand 62 states. [2020-07-28 18:58:23,325 INFO L87 Difference]: Start difference. First operand 58 states. Second operand 62 states. [2020-07-28 18:58:23,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:23,330 INFO L93 Difference]: Finished difference Result 62 states and 88 transitions. [2020-07-28 18:58:23,330 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 88 transitions. [2020-07-28 18:58:23,330 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:23,331 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:23,331 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:58:23,331 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:58:23,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-07-28 18:58:23,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 84 transitions. [2020-07-28 18:58:23,333 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 84 transitions. Word has length 22 [2020-07-28 18:58:23,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:58:23,334 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 84 transitions. [2020-07-28 18:58:23,334 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 18:58:23,334 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 84 transitions. [2020-07-28 18:58:23,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-07-28 18:58:23,335 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:58:23,335 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 18:58:23,335 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-28 18:58:23,335 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:58:23,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:58:23,336 INFO L82 PathProgramCache]: Analyzing trace with hash -372126526, now seen corresponding path program 1 times [2020-07-28 18:58:23,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:58:23,336 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392991191] [2020-07-28 18:58:23,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:58:23,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:58:23,441 INFO L280 TraceCheckUtils]: 0: Hoare triple {1245#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(110, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 2 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 3 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(80, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(117, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(109, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(112, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(32, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(77, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(101, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(116, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(104, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string64.base, #t~string64.offset, 1);call write~init~int(82, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(73, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(84, #t~string64.base, 3 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 4 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(75, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 1 + #t~string68.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; {1247#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:23,442 INFO L280 TraceCheckUtils]: 1: Hoare triple {1247#(= 0 ~pumpRunning~0)} havoc main_#res;havoc main_#t~ret72, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; {1247#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:23,443 INFO L280 TraceCheckUtils]: 2: Hoare triple {1247#(= 0 ~pumpRunning~0)} havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; {1247#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:23,443 INFO L280 TraceCheckUtils]: 3: Hoare triple {1247#(= 0 ~pumpRunning~0)} main_#t~ret72 := valid_product_#res;assume -2147483648 <= main_#t~ret72 && main_#t~ret72 <= 2147483647;main_~tmp~8 := main_#t~ret72;havoc main_#t~ret72; {1247#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:23,444 INFO L280 TraceCheckUtils]: 4: Hoare triple {1247#(= 0 ~pumpRunning~0)} assume 0 != main_~tmp~8; {1247#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:23,445 INFO L280 TraceCheckUtils]: 5: Hoare triple {1247#(= 0 ~pumpRunning~0)} havoc test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {1247#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:23,447 INFO L280 TraceCheckUtils]: 6: Hoare triple {1247#(= 0 ~pumpRunning~0)} assume !false; {1247#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:23,448 INFO L280 TraceCheckUtils]: 7: Hoare triple {1247#(= 0 ~pumpRunning~0)} assume test_~splverifierCounter~0 < 4; {1247#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:23,449 INFO L280 TraceCheckUtils]: 8: Hoare triple {1247#(= 0 ~pumpRunning~0)} assume -2147483648 <= test_#t~nondet35 && test_#t~nondet35 <= 2147483647;test_~tmp~3 := test_#t~nondet35;havoc test_#t~nondet35; {1247#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:23,450 INFO L280 TraceCheckUtils]: 9: Hoare triple {1247#(= 0 ~pumpRunning~0)} assume !(0 != test_~tmp~3); {1247#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:23,450 INFO L280 TraceCheckUtils]: 10: Hoare triple {1247#(= 0 ~pumpRunning~0)} assume -2147483648 <= test_#t~nondet36 && test_#t~nondet36 <= 2147483647;test_~tmp___0~0 := test_#t~nondet36;havoc test_#t~nondet36; {1247#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:23,451 INFO L280 TraceCheckUtils]: 11: Hoare triple {1247#(= 0 ~pumpRunning~0)} assume !(0 != test_~tmp___0~0); {1247#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:23,452 INFO L280 TraceCheckUtils]: 12: Hoare triple {1247#(= 0 ~pumpRunning~0)} assume -2147483648 <= test_#t~nondet37 && test_#t~nondet37 <= 2147483647;test_~tmp___2~0 := test_#t~nondet37;havoc test_#t~nondet37; {1247#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:23,453 INFO L280 TraceCheckUtils]: 13: Hoare triple {1247#(= 0 ~pumpRunning~0)} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {1247#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:23,454 INFO L280 TraceCheckUtils]: 14: Hoare triple {1247#(= 0 ~pumpRunning~0)} assume !(0 != ~pumpRunning~0); {1247#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:23,455 INFO L280 TraceCheckUtils]: 15: Hoare triple {1247#(= 0 ~pumpRunning~0)} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret39, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; {1247#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:23,456 INFO L280 TraceCheckUtils]: 16: Hoare triple {1247#(= 0 ~pumpRunning~0)} assume !(0 == ~pumpRunning~0); {1246#false} is VALID [2020-07-28 18:58:23,456 INFO L280 TraceCheckUtils]: 17: Hoare triple {1246#false} havoc __utac_acc__Specification1_spec__1_#t~ret69, __utac_acc__Specification1_spec__1_#t~ret70, __utac_acc__Specification1_spec__1_~tmp~7, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~7;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; {1246#false} is VALID [2020-07-28 18:58:23,456 INFO L280 TraceCheckUtils]: 18: Hoare triple {1246#false} __utac_acc__Specification1_spec__1_#t~ret69 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret69 && __utac_acc__Specification1_spec__1_#t~ret69 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp~7 := __utac_acc__Specification1_spec__1_#t~ret69;havoc __utac_acc__Specification1_spec__1_#t~ret69; {1246#false} is VALID [2020-07-28 18:58:23,456 INFO L280 TraceCheckUtils]: 19: Hoare triple {1246#false} assume 0 != __utac_acc__Specification1_spec__1_~tmp~7;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; {1246#false} is VALID [2020-07-28 18:58:23,457 INFO L280 TraceCheckUtils]: 20: Hoare triple {1246#false} __utac_acc__Specification1_spec__1_#t~ret70 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret70 && __utac_acc__Specification1_spec__1_#t~ret70 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp___0~2 := __utac_acc__Specification1_spec__1_#t~ret70;havoc __utac_acc__Specification1_spec__1_#t~ret70; {1246#false} is VALID [2020-07-28 18:58:23,457 INFO L280 TraceCheckUtils]: 21: Hoare triple {1246#false} assume 0 != __utac_acc__Specification1_spec__1_~tmp___0~2; {1246#false} is VALID [2020-07-28 18:58:23,458 INFO L280 TraceCheckUtils]: 22: Hoare triple {1246#false} assume !false; {1246#false} is VALID [2020-07-28 18:58:23,459 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 18:58:23,460 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392991191] [2020-07-28 18:58:23,460 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:58:23,460 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 18:58:23,461 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853958213] [2020-07-28 18:58:23,461 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-07-28 18:58:23,461 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:58:23,462 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 18:58:23,495 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 18:58:23,496 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 18:58:23,496 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:58:23,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 18:58:23,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 18:58:23,497 INFO L87 Difference]: Start difference. First operand 58 states and 84 transitions. Second operand 3 states. [2020-07-28 18:58:23,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:23,733 INFO L93 Difference]: Finished difference Result 131 states and 192 transitions. [2020-07-28 18:58:23,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 18:58:23,733 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-07-28 18:58:23,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:58:23,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 18:58:23,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 136 transitions. [2020-07-28 18:58:23,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 18:58:23,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 136 transitions. [2020-07-28 18:58:23,739 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 136 transitions. [2020-07-28 18:58:23,893 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 18:58:23,895 INFO L225 Difference]: With dead ends: 131 [2020-07-28 18:58:23,896 INFO L226 Difference]: Without dead ends: 79 [2020-07-28 18:58:23,901 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 18:58:23,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-07-28 18:58:23,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 77. [2020-07-28 18:58:23,983 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:58:23,983 INFO L82 GeneralOperation]: Start isEquivalent. First operand 79 states. Second operand 77 states. [2020-07-28 18:58:23,984 INFO L74 IsIncluded]: Start isIncluded. First operand 79 states. Second operand 77 states. [2020-07-28 18:58:23,984 INFO L87 Difference]: Start difference. First operand 79 states. Second operand 77 states. [2020-07-28 18:58:23,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:23,988 INFO L93 Difference]: Finished difference Result 79 states and 110 transitions. [2020-07-28 18:58:23,988 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 110 transitions. [2020-07-28 18:58:23,989 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:23,989 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:23,989 INFO L74 IsIncluded]: Start isIncluded. First operand 77 states. Second operand 79 states. [2020-07-28 18:58:23,989 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 79 states. [2020-07-28 18:58:23,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:23,992 INFO L93 Difference]: Finished difference Result 79 states and 110 transitions. [2020-07-28 18:58:23,992 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 110 transitions. [2020-07-28 18:58:23,993 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:23,993 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:23,993 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:58:23,993 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:58:23,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-07-28 18:58:23,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 109 transitions. [2020-07-28 18:58:23,996 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 109 transitions. Word has length 23 [2020-07-28 18:58:23,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:58:23,996 INFO L479 AbstractCegarLoop]: Abstraction has 77 states and 109 transitions. [2020-07-28 18:58:23,996 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 18:58:23,997 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 109 transitions. [2020-07-28 18:58:23,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-28 18:58:23,997 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:58:23,997 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 18:58:23,998 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-28 18:58:23,998 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:58:23,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:58:23,998 INFO L82 PathProgramCache]: Analyzing trace with hash -1852423790, now seen corresponding path program 1 times [2020-07-28 18:58:23,998 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:58:23,999 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476019233] [2020-07-28 18:58:23,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:58:24,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:58:24,143 INFO L280 TraceCheckUtils]: 0: Hoare triple {1701#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(110, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 2 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 3 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(80, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(117, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(109, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(112, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(32, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(77, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(101, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(116, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(104, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string64.base, #t~string64.offset, 1);call write~init~int(82, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(73, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(84, #t~string64.base, 3 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 4 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(75, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 1 + #t~string68.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; {1703#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:24,143 INFO L280 TraceCheckUtils]: 1: Hoare triple {1703#(= 0 ~pumpRunning~0)} havoc main_#res;havoc main_#t~ret72, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; {1703#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:24,144 INFO L280 TraceCheckUtils]: 2: Hoare triple {1703#(= 0 ~pumpRunning~0)} havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; {1703#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:24,144 INFO L280 TraceCheckUtils]: 3: Hoare triple {1703#(= 0 ~pumpRunning~0)} main_#t~ret72 := valid_product_#res;assume -2147483648 <= main_#t~ret72 && main_#t~ret72 <= 2147483647;main_~tmp~8 := main_#t~ret72;havoc main_#t~ret72; {1703#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:24,145 INFO L280 TraceCheckUtils]: 4: Hoare triple {1703#(= 0 ~pumpRunning~0)} assume 0 != main_~tmp~8; {1703#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:24,145 INFO L280 TraceCheckUtils]: 5: Hoare triple {1703#(= 0 ~pumpRunning~0)} havoc test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {1703#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:24,146 INFO L280 TraceCheckUtils]: 6: Hoare triple {1703#(= 0 ~pumpRunning~0)} assume !false; {1703#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:24,146 INFO L280 TraceCheckUtils]: 7: Hoare triple {1703#(= 0 ~pumpRunning~0)} assume test_~splverifierCounter~0 < 4; {1703#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:24,148 INFO L280 TraceCheckUtils]: 8: Hoare triple {1703#(= 0 ~pumpRunning~0)} assume -2147483648 <= test_#t~nondet35 && test_#t~nondet35 <= 2147483647;test_~tmp~3 := test_#t~nondet35;havoc test_#t~nondet35; {1703#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:24,149 INFO L280 TraceCheckUtils]: 9: Hoare triple {1703#(= 0 ~pumpRunning~0)} assume !(0 != test_~tmp~3); {1703#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:24,149 INFO L280 TraceCheckUtils]: 10: Hoare triple {1703#(= 0 ~pumpRunning~0)} assume -2147483648 <= test_#t~nondet36 && test_#t~nondet36 <= 2147483647;test_~tmp___0~0 := test_#t~nondet36;havoc test_#t~nondet36; {1703#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:24,150 INFO L280 TraceCheckUtils]: 11: Hoare triple {1703#(= 0 ~pumpRunning~0)} assume !(0 != test_~tmp___0~0); {1703#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:24,151 INFO L280 TraceCheckUtils]: 12: Hoare triple {1703#(= 0 ~pumpRunning~0)} assume -2147483648 <= test_#t~nondet37 && test_#t~nondet37 <= 2147483647;test_~tmp___2~0 := test_#t~nondet37;havoc test_#t~nondet37; {1703#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:24,151 INFO L280 TraceCheckUtils]: 13: Hoare triple {1703#(= 0 ~pumpRunning~0)} assume !(0 != test_~tmp___2~0);assume -2147483648 <= test_#t~nondet38 && test_#t~nondet38 <= 2147483647;test_~tmp___1~0 := test_#t~nondet38;havoc test_#t~nondet38; {1703#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:24,152 INFO L280 TraceCheckUtils]: 14: Hoare triple {1703#(= 0 ~pumpRunning~0)} assume 0 != test_~tmp___1~0; {1703#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:24,153 INFO L280 TraceCheckUtils]: 15: Hoare triple {1703#(= 0 ~pumpRunning~0)} assume !(0 != ~pumpRunning~0); {1703#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:24,153 INFO L280 TraceCheckUtils]: 16: Hoare triple {1703#(= 0 ~pumpRunning~0)} ~systemActive~0 := 0; {1703#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:24,154 INFO L280 TraceCheckUtils]: 17: Hoare triple {1703#(= 0 ~pumpRunning~0)} assume !(0 != ~pumpRunning~0); {1703#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:24,154 INFO L280 TraceCheckUtils]: 18: Hoare triple {1703#(= 0 ~pumpRunning~0)} assume !(0 != ~systemActive~0); {1703#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:24,154 INFO L280 TraceCheckUtils]: 19: Hoare triple {1703#(= 0 ~pumpRunning~0)} havoc __utac_acc__Specification1_spec__1_#t~ret69, __utac_acc__Specification1_spec__1_#t~ret70, __utac_acc__Specification1_spec__1_~tmp~7, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~7;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; {1703#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:24,155 INFO L280 TraceCheckUtils]: 20: Hoare triple {1703#(= 0 ~pumpRunning~0)} __utac_acc__Specification1_spec__1_#t~ret69 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret69 && __utac_acc__Specification1_spec__1_#t~ret69 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp~7 := __utac_acc__Specification1_spec__1_#t~ret69;havoc __utac_acc__Specification1_spec__1_#t~ret69; {1703#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:24,156 INFO L280 TraceCheckUtils]: 21: Hoare triple {1703#(= 0 ~pumpRunning~0)} assume 0 != __utac_acc__Specification1_spec__1_~tmp~7;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; {1704#(= 0 |ULTIMATE.start_isPumpRunning_#res|)} is VALID [2020-07-28 18:58:24,156 INFO L280 TraceCheckUtils]: 22: Hoare triple {1704#(= 0 |ULTIMATE.start_isPumpRunning_#res|)} __utac_acc__Specification1_spec__1_#t~ret70 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret70 && __utac_acc__Specification1_spec__1_#t~ret70 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp___0~2 := __utac_acc__Specification1_spec__1_#t~ret70;havoc __utac_acc__Specification1_spec__1_#t~ret70; {1705#(= 0 ULTIMATE.start___utac_acc__Specification1_spec__1_~tmp___0~2)} is VALID [2020-07-28 18:58:24,163 INFO L280 TraceCheckUtils]: 23: Hoare triple {1705#(= 0 ULTIMATE.start___utac_acc__Specification1_spec__1_~tmp___0~2)} assume 0 != __utac_acc__Specification1_spec__1_~tmp___0~2; {1702#false} is VALID [2020-07-28 18:58:24,164 INFO L280 TraceCheckUtils]: 24: Hoare triple {1702#false} assume !false; {1702#false} is VALID [2020-07-28 18:58:24,165 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 18:58:24,165 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476019233] [2020-07-28 18:58:24,166 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:58:24,166 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 18:58:24,166 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286102928] [2020-07-28 18:58:24,166 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-07-28 18:58:24,166 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:58:24,167 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 18:58:24,204 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 18:58:24,204 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 18:58:24,204 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:58:24,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 18:58:24,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-28 18:58:24,205 INFO L87 Difference]: Start difference. First operand 77 states and 109 transitions. Second operand 5 states. [2020-07-28 18:58:25,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:25,123 INFO L93 Difference]: Finished difference Result 216 states and 309 transitions. [2020-07-28 18:58:25,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-28 18:58:25,123 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-07-28 18:58:25,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:58:25,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 18:58:25,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 238 transitions. [2020-07-28 18:58:25,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 18:58:25,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 238 transitions. [2020-07-28 18:58:25,133 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 238 transitions. [2020-07-28 18:58:25,470 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 18:58:25,478 INFO L225 Difference]: With dead ends: 216 [2020-07-28 18:58:25,478 INFO L226 Difference]: Without dead ends: 214 [2020-07-28 18:58:25,479 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 18:58:25,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2020-07-28 18:58:25,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 77. [2020-07-28 18:58:25,644 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:58:25,644 INFO L82 GeneralOperation]: Start isEquivalent. First operand 214 states. Second operand 77 states. [2020-07-28 18:58:25,644 INFO L74 IsIncluded]: Start isIncluded. First operand 214 states. Second operand 77 states. [2020-07-28 18:58:25,644 INFO L87 Difference]: Start difference. First operand 214 states. Second operand 77 states. [2020-07-28 18:58:25,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:25,659 INFO L93 Difference]: Finished difference Result 214 states and 306 transitions. [2020-07-28 18:58:25,659 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 306 transitions. [2020-07-28 18:58:25,660 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:25,660 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:25,660 INFO L74 IsIncluded]: Start isIncluded. First operand 77 states. Second operand 214 states. [2020-07-28 18:58:25,661 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 214 states. [2020-07-28 18:58:25,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:25,671 INFO L93 Difference]: Finished difference Result 214 states and 306 transitions. [2020-07-28 18:58:25,671 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 306 transitions. [2020-07-28 18:58:25,672 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:25,672 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:25,672 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:58:25,672 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:58:25,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-07-28 18:58:25,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 107 transitions. [2020-07-28 18:58:25,676 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 107 transitions. Word has length 25 [2020-07-28 18:58:25,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:58:25,678 INFO L479 AbstractCegarLoop]: Abstraction has 77 states and 107 transitions. [2020-07-28 18:58:25,678 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 18:58:25,679 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 107 transitions. [2020-07-28 18:58:25,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-07-28 18:58:25,679 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:58:25,680 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] [2020-07-28 18:58:25,680 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-28 18:58:25,681 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:58:25,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:58:25,682 INFO L82 PathProgramCache]: Analyzing trace with hash -886568673, now seen corresponding path program 1 times [2020-07-28 18:58:25,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:58:25,682 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546315353] [2020-07-28 18:58:25,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:58:25,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:58:25,843 INFO L280 TraceCheckUtils]: 0: Hoare triple {2561#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(110, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 2 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 3 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(80, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(117, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(109, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(112, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(32, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(77, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(101, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(116, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(104, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string64.base, #t~string64.offset, 1);call write~init~int(82, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(73, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(84, #t~string64.base, 3 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 4 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(75, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 1 + #t~string68.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; {2561#true} is VALID [2020-07-28 18:58:25,843 INFO L280 TraceCheckUtils]: 1: Hoare triple {2561#true} havoc main_#res;havoc main_#t~ret72, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; {2561#true} is VALID [2020-07-28 18:58:25,844 INFO L280 TraceCheckUtils]: 2: Hoare triple {2561#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; {2561#true} is VALID [2020-07-28 18:58:25,844 INFO L280 TraceCheckUtils]: 3: Hoare triple {2561#true} main_#t~ret72 := valid_product_#res;assume -2147483648 <= main_#t~ret72 && main_#t~ret72 <= 2147483647;main_~tmp~8 := main_#t~ret72;havoc main_#t~ret72; {2561#true} is VALID [2020-07-28 18:58:25,845 INFO L280 TraceCheckUtils]: 4: Hoare triple {2561#true} assume 0 != main_~tmp~8; {2561#true} is VALID [2020-07-28 18:58:25,845 INFO L280 TraceCheckUtils]: 5: Hoare triple {2561#true} havoc test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {2561#true} is VALID [2020-07-28 18:58:25,846 INFO L280 TraceCheckUtils]: 6: Hoare triple {2561#true} assume !false; {2561#true} is VALID [2020-07-28 18:58:25,846 INFO L280 TraceCheckUtils]: 7: Hoare triple {2561#true} assume test_~splverifierCounter~0 < 4; {2561#true} is VALID [2020-07-28 18:58:25,846 INFO L280 TraceCheckUtils]: 8: Hoare triple {2561#true} assume -2147483648 <= test_#t~nondet35 && test_#t~nondet35 <= 2147483647;test_~tmp~3 := test_#t~nondet35;havoc test_#t~nondet35; {2561#true} is VALID [2020-07-28 18:58:25,846 INFO L280 TraceCheckUtils]: 9: Hoare triple {2561#true} assume !(0 != test_~tmp~3); {2561#true} is VALID [2020-07-28 18:58:25,847 INFO L280 TraceCheckUtils]: 10: Hoare triple {2561#true} assume -2147483648 <= test_#t~nondet36 && test_#t~nondet36 <= 2147483647;test_~tmp___0~0 := test_#t~nondet36;havoc test_#t~nondet36; {2561#true} is VALID [2020-07-28 18:58:25,847 INFO L280 TraceCheckUtils]: 11: Hoare triple {2561#true} assume !(0 != test_~tmp___0~0); {2561#true} is VALID [2020-07-28 18:58:25,847 INFO L280 TraceCheckUtils]: 12: Hoare triple {2561#true} assume -2147483648 <= test_#t~nondet37 && test_#t~nondet37 <= 2147483647;test_~tmp___2~0 := test_#t~nondet37;havoc test_#t~nondet37; {2561#true} is VALID [2020-07-28 18:58:25,847 INFO L280 TraceCheckUtils]: 13: Hoare triple {2561#true} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {2561#true} is VALID [2020-07-28 18:58:25,848 INFO L280 TraceCheckUtils]: 14: Hoare triple {2561#true} assume !(0 != ~pumpRunning~0); {2561#true} is VALID [2020-07-28 18:58:25,848 INFO L280 TraceCheckUtils]: 15: Hoare triple {2561#true} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret39, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; {2561#true} is VALID [2020-07-28 18:58:25,848 INFO L280 TraceCheckUtils]: 16: Hoare triple {2561#true} assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret58, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~6, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~6;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; {2561#true} is VALID [2020-07-28 18:58:25,848 INFO L280 TraceCheckUtils]: 17: Hoare triple {2561#true} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; {2561#true} is VALID [2020-07-28 18:58:25,849 INFO L280 TraceCheckUtils]: 18: Hoare triple {2561#true} isHighWaterLevel_#t~ret58 := isHighWaterSensorDry_#res;assume -2147483648 <= isHighWaterLevel_#t~ret58 && isHighWaterLevel_#t~ret58 <= 2147483647;isHighWaterLevel_~tmp~6 := isHighWaterLevel_#t~ret58;havoc isHighWaterLevel_#t~ret58; {2561#true} is VALID [2020-07-28 18:58:25,850 INFO L280 TraceCheckUtils]: 19: Hoare triple {2561#true} assume 0 != isHighWaterLevel_~tmp~6;isHighWaterLevel_~tmp___0~1 := 0; {2563#(= 0 ULTIMATE.start_isHighWaterLevel_~tmp___0~1)} is VALID [2020-07-28 18:58:25,851 INFO L280 TraceCheckUtils]: 20: Hoare triple {2563#(= 0 ULTIMATE.start_isHighWaterLevel_~tmp___0~1)} isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; {2564#(= 0 |ULTIMATE.start_isHighWaterLevel_#res|)} is VALID [2020-07-28 18:58:25,851 INFO L280 TraceCheckUtils]: 21: Hoare triple {2564#(= 0 |ULTIMATE.start_isHighWaterLevel_#res|)} processEnvironment_#t~ret39 := isHighWaterLevel_#res;assume -2147483648 <= processEnvironment_#t~ret39 && processEnvironment_#t~ret39 <= 2147483647;processEnvironment_~tmp~4 := processEnvironment_#t~ret39;havoc processEnvironment_#t~ret39; {2565#(= 0 ULTIMATE.start_processEnvironment_~tmp~4)} is VALID [2020-07-28 18:58:25,852 INFO L280 TraceCheckUtils]: 22: Hoare triple {2565#(= 0 ULTIMATE.start_processEnvironment_~tmp~4)} assume 0 != processEnvironment_~tmp~4;havoc activatePump_#t~ret40, activatePump_~tmp~5;havoc activatePump_~tmp~5;havoc isMethaneAlarm_#res;havoc isMethaneAlarm_#t~ret41, isMethaneAlarm_~retValue_acc~3;havoc isMethaneAlarm_~retValue_acc~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; {2562#false} is VALID [2020-07-28 18:58:25,852 INFO L280 TraceCheckUtils]: 23: Hoare triple {2562#false} isMethaneAlarm_#t~ret41 := isMethaneLevelCritical_#res;assume -2147483648 <= isMethaneAlarm_#t~ret41 && isMethaneAlarm_#t~ret41 <= 2147483647;isMethaneAlarm_~retValue_acc~3 := isMethaneAlarm_#t~ret41;havoc isMethaneAlarm_#t~ret41;isMethaneAlarm_#res := isMethaneAlarm_~retValue_acc~3; {2562#false} is VALID [2020-07-28 18:58:25,853 INFO L280 TraceCheckUtils]: 24: Hoare triple {2562#false} activatePump_#t~ret40 := isMethaneAlarm_#res;assume -2147483648 <= activatePump_#t~ret40 && activatePump_#t~ret40 <= 2147483647;activatePump_~tmp~5 := activatePump_#t~ret40;havoc activatePump_#t~ret40; {2562#false} is VALID [2020-07-28 18:58:25,853 INFO L280 TraceCheckUtils]: 25: Hoare triple {2562#false} assume !(0 != activatePump_~tmp~5);~pumpRunning~0 := 1; {2562#false} is VALID [2020-07-28 18:58:25,853 INFO L280 TraceCheckUtils]: 26: Hoare triple {2562#false} havoc __utac_acc__Specification1_spec__1_#t~ret69, __utac_acc__Specification1_spec__1_#t~ret70, __utac_acc__Specification1_spec__1_~tmp~7, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~7;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; {2562#false} is VALID [2020-07-28 18:58:25,854 INFO L280 TraceCheckUtils]: 27: Hoare triple {2562#false} __utac_acc__Specification1_spec__1_#t~ret69 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret69 && __utac_acc__Specification1_spec__1_#t~ret69 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp~7 := __utac_acc__Specification1_spec__1_#t~ret69;havoc __utac_acc__Specification1_spec__1_#t~ret69; {2562#false} is VALID [2020-07-28 18:58:25,854 INFO L280 TraceCheckUtils]: 28: Hoare triple {2562#false} assume 0 != __utac_acc__Specification1_spec__1_~tmp~7;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; {2562#false} is VALID [2020-07-28 18:58:25,854 INFO L280 TraceCheckUtils]: 29: Hoare triple {2562#false} __utac_acc__Specification1_spec__1_#t~ret70 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret70 && __utac_acc__Specification1_spec__1_#t~ret70 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp___0~2 := __utac_acc__Specification1_spec__1_#t~ret70;havoc __utac_acc__Specification1_spec__1_#t~ret70; {2562#false} is VALID [2020-07-28 18:58:25,854 INFO L280 TraceCheckUtils]: 30: Hoare triple {2562#false} assume 0 != __utac_acc__Specification1_spec__1_~tmp___0~2; {2562#false} is VALID [2020-07-28 18:58:25,855 INFO L280 TraceCheckUtils]: 31: Hoare triple {2562#false} assume !false; {2562#false} is VALID [2020-07-28 18:58:25,856 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 18:58:25,856 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546315353] [2020-07-28 18:58:25,856 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:58:25,856 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-28 18:58:25,857 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910992329] [2020-07-28 18:58:25,857 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-07-28 18:58:25,857 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:58:25,858 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 18:58:25,902 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 32 edges. 32 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:58:25,903 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 18:58:25,903 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:58:25,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 18:58:25,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-28 18:58:25,904 INFO L87 Difference]: Start difference. First operand 77 states and 107 transitions. Second operand 5 states. [2020-07-28 18:58:26,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:26,650 INFO L93 Difference]: Finished difference Result 228 states and 319 transitions. [2020-07-28 18:58:26,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-28 18:58:26,651 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-07-28 18:58:26,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:58:26,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 18:58:26,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 165 transitions. [2020-07-28 18:58:26,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 18:58:26,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 165 transitions. [2020-07-28 18:58:26,658 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 165 transitions. [2020-07-28 18:58:26,841 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 18:58:26,845 INFO L225 Difference]: With dead ends: 228 [2020-07-28 18:58:26,845 INFO L226 Difference]: Without dead ends: 157 [2020-07-28 18:58:26,846 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 18:58:26,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2020-07-28 18:58:26,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 80. [2020-07-28 18:58:26,983 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:58:26,983 INFO L82 GeneralOperation]: Start isEquivalent. First operand 157 states. Second operand 80 states. [2020-07-28 18:58:26,983 INFO L74 IsIncluded]: Start isIncluded. First operand 157 states. Second operand 80 states. [2020-07-28 18:58:26,983 INFO L87 Difference]: Start difference. First operand 157 states. Second operand 80 states. [2020-07-28 18:58:26,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:26,989 INFO L93 Difference]: Finished difference Result 157 states and 217 transitions. [2020-07-28 18:58:26,989 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 217 transitions. [2020-07-28 18:58:26,989 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:26,989 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:26,989 INFO L74 IsIncluded]: Start isIncluded. First operand 80 states. Second operand 157 states. [2020-07-28 18:58:26,990 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 157 states. [2020-07-28 18:58:27,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:27,001 INFO L93 Difference]: Finished difference Result 157 states and 217 transitions. [2020-07-28 18:58:27,001 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 217 transitions. [2020-07-28 18:58:27,001 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:27,001 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:27,001 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:58:27,002 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:58:27,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-07-28 18:58:27,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 110 transitions. [2020-07-28 18:58:27,005 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 110 transitions. Word has length 32 [2020-07-28 18:58:27,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:58:27,005 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 110 transitions. [2020-07-28 18:58:27,005 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 18:58:27,005 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 110 transitions. [2020-07-28 18:58:27,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-07-28 18:58:27,007 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:58:27,007 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] [2020-07-28 18:58:27,008 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-28 18:58:27,008 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:58:27,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:58:27,009 INFO L82 PathProgramCache]: Analyzing trace with hash -1473374687, now seen corresponding path program 1 times [2020-07-28 18:58:27,009 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:58:27,009 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513489154] [2020-07-28 18:58:27,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:58:27,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:58:27,108 INFO L280 TraceCheckUtils]: 0: Hoare triple {3325#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(110, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 2 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 3 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(80, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(117, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(109, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(112, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(32, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(77, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(101, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(116, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(104, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string64.base, #t~string64.offset, 1);call write~init~int(82, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(73, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(84, #t~string64.base, 3 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 4 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(75, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 1 + #t~string68.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; {3325#true} is VALID [2020-07-28 18:58:27,108 INFO L280 TraceCheckUtils]: 1: Hoare triple {3325#true} havoc main_#res;havoc main_#t~ret72, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; {3325#true} is VALID [2020-07-28 18:58:27,108 INFO L280 TraceCheckUtils]: 2: Hoare triple {3325#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; {3325#true} is VALID [2020-07-28 18:58:27,109 INFO L280 TraceCheckUtils]: 3: Hoare triple {3325#true} main_#t~ret72 := valid_product_#res;assume -2147483648 <= main_#t~ret72 && main_#t~ret72 <= 2147483647;main_~tmp~8 := main_#t~ret72;havoc main_#t~ret72; {3325#true} is VALID [2020-07-28 18:58:27,109 INFO L280 TraceCheckUtils]: 4: Hoare triple {3325#true} assume 0 != main_~tmp~8; {3325#true} is VALID [2020-07-28 18:58:27,110 INFO L280 TraceCheckUtils]: 5: Hoare triple {3325#true} havoc test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {3325#true} is VALID [2020-07-28 18:58:27,110 INFO L280 TraceCheckUtils]: 6: Hoare triple {3325#true} assume !false; {3325#true} is VALID [2020-07-28 18:58:27,110 INFO L280 TraceCheckUtils]: 7: Hoare triple {3325#true} assume test_~splverifierCounter~0 < 4; {3325#true} is VALID [2020-07-28 18:58:27,110 INFO L280 TraceCheckUtils]: 8: Hoare triple {3325#true} assume -2147483648 <= test_#t~nondet35 && test_#t~nondet35 <= 2147483647;test_~tmp~3 := test_#t~nondet35;havoc test_#t~nondet35; {3325#true} is VALID [2020-07-28 18:58:27,111 INFO L280 TraceCheckUtils]: 9: Hoare triple {3325#true} assume !(0 != test_~tmp~3); {3325#true} is VALID [2020-07-28 18:58:27,111 INFO L280 TraceCheckUtils]: 10: Hoare triple {3325#true} assume -2147483648 <= test_#t~nondet36 && test_#t~nondet36 <= 2147483647;test_~tmp___0~0 := test_#t~nondet36;havoc test_#t~nondet36; {3325#true} is VALID [2020-07-28 18:58:27,111 INFO L280 TraceCheckUtils]: 11: Hoare triple {3325#true} assume !(0 != test_~tmp___0~0); {3325#true} is VALID [2020-07-28 18:58:27,112 INFO L280 TraceCheckUtils]: 12: Hoare triple {3325#true} assume -2147483648 <= test_#t~nondet37 && test_#t~nondet37 <= 2147483647;test_~tmp___2~0 := test_#t~nondet37;havoc test_#t~nondet37; {3325#true} is VALID [2020-07-28 18:58:27,112 INFO L280 TraceCheckUtils]: 13: Hoare triple {3325#true} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {3325#true} is VALID [2020-07-28 18:58:27,112 INFO L280 TraceCheckUtils]: 14: Hoare triple {3325#true} assume !(0 != ~pumpRunning~0); {3325#true} is VALID [2020-07-28 18:58:27,112 INFO L280 TraceCheckUtils]: 15: Hoare triple {3325#true} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret39, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; {3325#true} is VALID [2020-07-28 18:58:27,113 INFO L280 TraceCheckUtils]: 16: Hoare triple {3325#true} assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret58, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~6, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~6;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; {3325#true} is VALID [2020-07-28 18:58:27,113 INFO L280 TraceCheckUtils]: 17: Hoare triple {3325#true} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; {3327#(= 1 |ULTIMATE.start_isHighWaterSensorDry_#res|)} is VALID [2020-07-28 18:58:27,114 INFO L280 TraceCheckUtils]: 18: Hoare triple {3327#(= 1 |ULTIMATE.start_isHighWaterSensorDry_#res|)} isHighWaterLevel_#t~ret58 := isHighWaterSensorDry_#res;assume -2147483648 <= isHighWaterLevel_#t~ret58 && isHighWaterLevel_#t~ret58 <= 2147483647;isHighWaterLevel_~tmp~6 := isHighWaterLevel_#t~ret58;havoc isHighWaterLevel_#t~ret58; {3328#(= ULTIMATE.start_isHighWaterLevel_~tmp~6 1)} is VALID [2020-07-28 18:58:27,115 INFO L280 TraceCheckUtils]: 19: Hoare triple {3328#(= ULTIMATE.start_isHighWaterLevel_~tmp~6 1)} assume !(0 != isHighWaterLevel_~tmp~6);isHighWaterLevel_~tmp___0~1 := 1; {3326#false} is VALID [2020-07-28 18:58:27,115 INFO L280 TraceCheckUtils]: 20: Hoare triple {3326#false} isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; {3326#false} is VALID [2020-07-28 18:58:27,115 INFO L280 TraceCheckUtils]: 21: Hoare triple {3326#false} processEnvironment_#t~ret39 := isHighWaterLevel_#res;assume -2147483648 <= processEnvironment_#t~ret39 && processEnvironment_#t~ret39 <= 2147483647;processEnvironment_~tmp~4 := processEnvironment_#t~ret39;havoc processEnvironment_#t~ret39; {3326#false} is VALID [2020-07-28 18:58:27,115 INFO L280 TraceCheckUtils]: 22: Hoare triple {3326#false} assume 0 != processEnvironment_~tmp~4;havoc activatePump_#t~ret40, activatePump_~tmp~5;havoc activatePump_~tmp~5;havoc isMethaneAlarm_#res;havoc isMethaneAlarm_#t~ret41, isMethaneAlarm_~retValue_acc~3;havoc isMethaneAlarm_~retValue_acc~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; {3326#false} is VALID [2020-07-28 18:58:27,116 INFO L280 TraceCheckUtils]: 23: Hoare triple {3326#false} isMethaneAlarm_#t~ret41 := isMethaneLevelCritical_#res;assume -2147483648 <= isMethaneAlarm_#t~ret41 && isMethaneAlarm_#t~ret41 <= 2147483647;isMethaneAlarm_~retValue_acc~3 := isMethaneAlarm_#t~ret41;havoc isMethaneAlarm_#t~ret41;isMethaneAlarm_#res := isMethaneAlarm_~retValue_acc~3; {3326#false} is VALID [2020-07-28 18:58:27,116 INFO L280 TraceCheckUtils]: 24: Hoare triple {3326#false} activatePump_#t~ret40 := isMethaneAlarm_#res;assume -2147483648 <= activatePump_#t~ret40 && activatePump_#t~ret40 <= 2147483647;activatePump_~tmp~5 := activatePump_#t~ret40;havoc activatePump_#t~ret40; {3326#false} is VALID [2020-07-28 18:58:27,116 INFO L280 TraceCheckUtils]: 25: Hoare triple {3326#false} assume !(0 != activatePump_~tmp~5);~pumpRunning~0 := 1; {3326#false} is VALID [2020-07-28 18:58:27,116 INFO L280 TraceCheckUtils]: 26: Hoare triple {3326#false} havoc __utac_acc__Specification1_spec__1_#t~ret69, __utac_acc__Specification1_spec__1_#t~ret70, __utac_acc__Specification1_spec__1_~tmp~7, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~7;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; {3326#false} is VALID [2020-07-28 18:58:27,117 INFO L280 TraceCheckUtils]: 27: Hoare triple {3326#false} __utac_acc__Specification1_spec__1_#t~ret69 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret69 && __utac_acc__Specification1_spec__1_#t~ret69 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp~7 := __utac_acc__Specification1_spec__1_#t~ret69;havoc __utac_acc__Specification1_spec__1_#t~ret69; {3326#false} is VALID [2020-07-28 18:58:27,117 INFO L280 TraceCheckUtils]: 28: Hoare triple {3326#false} assume 0 != __utac_acc__Specification1_spec__1_~tmp~7;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; {3326#false} is VALID [2020-07-28 18:58:27,117 INFO L280 TraceCheckUtils]: 29: Hoare triple {3326#false} __utac_acc__Specification1_spec__1_#t~ret70 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret70 && __utac_acc__Specification1_spec__1_#t~ret70 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp___0~2 := __utac_acc__Specification1_spec__1_#t~ret70;havoc __utac_acc__Specification1_spec__1_#t~ret70; {3326#false} is VALID [2020-07-28 18:58:27,117 INFO L280 TraceCheckUtils]: 30: Hoare triple {3326#false} assume 0 != __utac_acc__Specification1_spec__1_~tmp___0~2; {3326#false} is VALID [2020-07-28 18:58:27,117 INFO L280 TraceCheckUtils]: 31: Hoare triple {3326#false} assume !false; {3326#false} is VALID [2020-07-28 18:58:27,119 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 18:58:27,119 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513489154] [2020-07-28 18:58:27,120 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:58:27,120 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 18:58:27,120 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489952099] [2020-07-28 18:58:27,121 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2020-07-28 18:58:27,123 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:58:27,123 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 18:58:27,166 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 32 edges. 32 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:58:27,167 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 18:58:27,167 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:58:27,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 18:58:27,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 18:58:27,168 INFO L87 Difference]: Start difference. First operand 80 states and 110 transitions. Second operand 4 states. [2020-07-28 18:58:27,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:27,776 INFO L93 Difference]: Finished difference Result 198 states and 274 transitions. [2020-07-28 18:58:27,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 18:58:27,776 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2020-07-28 18:58:27,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:58:27,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 18:58:27,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 139 transitions. [2020-07-28 18:58:27,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 18:58:27,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 139 transitions. [2020-07-28 18:58:27,781 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 139 transitions. [2020-07-28 18:58:27,922 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 139 edges. 139 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:58:27,925 INFO L225 Difference]: With dead ends: 198 [2020-07-28 18:58:27,926 INFO L226 Difference]: Without dead ends: 124 [2020-07-28 18:58:27,926 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-28 18:58:27,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-07-28 18:58:28,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 82. [2020-07-28 18:58:28,140 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:58:28,140 INFO L82 GeneralOperation]: Start isEquivalent. First operand 124 states. Second operand 82 states. [2020-07-28 18:58:28,140 INFO L74 IsIncluded]: Start isIncluded. First operand 124 states. Second operand 82 states. [2020-07-28 18:58:28,141 INFO L87 Difference]: Start difference. First operand 124 states. Second operand 82 states. [2020-07-28 18:58:28,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:28,145 INFO L93 Difference]: Finished difference Result 124 states and 169 transitions. [2020-07-28 18:58:28,146 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 169 transitions. [2020-07-28 18:58:28,146 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:28,146 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:28,147 INFO L74 IsIncluded]: Start isIncluded. First operand 82 states. Second operand 124 states. [2020-07-28 18:58:28,147 INFO L87 Difference]: Start difference. First operand 82 states. Second operand 124 states. [2020-07-28 18:58:28,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:28,151 INFO L93 Difference]: Finished difference Result 124 states and 169 transitions. [2020-07-28 18:58:28,152 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 169 transitions. [2020-07-28 18:58:28,152 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:28,152 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:28,152 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:58:28,153 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:58:28,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-07-28 18:58:28,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 112 transitions. [2020-07-28 18:58:28,156 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 112 transitions. Word has length 32 [2020-07-28 18:58:28,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:58:28,156 INFO L479 AbstractCegarLoop]: Abstraction has 82 states and 112 transitions. [2020-07-28 18:58:28,157 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 18:58:28,157 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 112 transitions. [2020-07-28 18:58:28,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-07-28 18:58:28,158 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:58:28,158 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] [2020-07-28 18:58:28,158 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-28 18:58:28,158 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:58:28,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:58:28,159 INFO L82 PathProgramCache]: Analyzing trace with hash 1541728931, now seen corresponding path program 1 times [2020-07-28 18:58:28,159 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:58:28,159 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525625399] [2020-07-28 18:58:28,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:58:28,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:58:28,215 INFO L280 TraceCheckUtils]: 0: Hoare triple {3978#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(110, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 2 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 3 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(80, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(117, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(109, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(112, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(32, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(77, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(101, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(116, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(104, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string64.base, #t~string64.offset, 1);call write~init~int(82, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(73, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(84, #t~string64.base, 3 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 4 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(75, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 1 + #t~string68.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; {3980#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:58:28,216 INFO L280 TraceCheckUtils]: 1: Hoare triple {3980#(= 1 ~waterLevel~0)} havoc main_#res;havoc main_#t~ret72, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; {3980#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:58:28,216 INFO L280 TraceCheckUtils]: 2: Hoare triple {3980#(= 1 ~waterLevel~0)} havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; {3980#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:58:28,217 INFO L280 TraceCheckUtils]: 3: Hoare triple {3980#(= 1 ~waterLevel~0)} main_#t~ret72 := valid_product_#res;assume -2147483648 <= main_#t~ret72 && main_#t~ret72 <= 2147483647;main_~tmp~8 := main_#t~ret72;havoc main_#t~ret72; {3980#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:58:28,218 INFO L280 TraceCheckUtils]: 4: Hoare triple {3980#(= 1 ~waterLevel~0)} assume 0 != main_~tmp~8; {3980#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:58:28,219 INFO L280 TraceCheckUtils]: 5: Hoare triple {3980#(= 1 ~waterLevel~0)} havoc test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {3980#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:58:28,219 INFO L280 TraceCheckUtils]: 6: Hoare triple {3980#(= 1 ~waterLevel~0)} assume !false; {3980#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:58:28,220 INFO L280 TraceCheckUtils]: 7: Hoare triple {3980#(= 1 ~waterLevel~0)} assume test_~splverifierCounter~0 < 4; {3980#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:58:28,221 INFO L280 TraceCheckUtils]: 8: Hoare triple {3980#(= 1 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet35 && test_#t~nondet35 <= 2147483647;test_~tmp~3 := test_#t~nondet35;havoc test_#t~nondet35; {3980#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:58:28,221 INFO L280 TraceCheckUtils]: 9: Hoare triple {3980#(= 1 ~waterLevel~0)} assume !(0 != test_~tmp~3); {3980#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:58:28,222 INFO L280 TraceCheckUtils]: 10: Hoare triple {3980#(= 1 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet36 && test_#t~nondet36 <= 2147483647;test_~tmp___0~0 := test_#t~nondet36;havoc test_#t~nondet36; {3980#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:58:28,223 INFO L280 TraceCheckUtils]: 11: Hoare triple {3980#(= 1 ~waterLevel~0)} assume !(0 != test_~tmp___0~0); {3980#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:58:28,223 INFO L280 TraceCheckUtils]: 12: Hoare triple {3980#(= 1 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet37 && test_#t~nondet37 <= 2147483647;test_~tmp___2~0 := test_#t~nondet37;havoc test_#t~nondet37; {3980#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:58:28,224 INFO L280 TraceCheckUtils]: 13: Hoare triple {3980#(= 1 ~waterLevel~0)} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {3980#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:58:28,225 INFO L280 TraceCheckUtils]: 14: Hoare triple {3980#(= 1 ~waterLevel~0)} assume !(0 != ~pumpRunning~0); {3980#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:58:28,226 INFO L280 TraceCheckUtils]: 15: Hoare triple {3980#(= 1 ~waterLevel~0)} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret39, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; {3980#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:58:28,226 INFO L280 TraceCheckUtils]: 16: Hoare triple {3980#(= 1 ~waterLevel~0)} assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret58, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~6, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~6;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; {3980#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:58:28,227 INFO L280 TraceCheckUtils]: 17: Hoare triple {3980#(= 1 ~waterLevel~0)} assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~8 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; {3979#false} is VALID [2020-07-28 18:58:28,228 INFO L280 TraceCheckUtils]: 18: Hoare triple {3979#false} isHighWaterLevel_#t~ret58 := isHighWaterSensorDry_#res;assume -2147483648 <= isHighWaterLevel_#t~ret58 && isHighWaterLevel_#t~ret58 <= 2147483647;isHighWaterLevel_~tmp~6 := isHighWaterLevel_#t~ret58;havoc isHighWaterLevel_#t~ret58; {3979#false} is VALID [2020-07-28 18:58:28,228 INFO L280 TraceCheckUtils]: 19: Hoare triple {3979#false} assume !(0 != isHighWaterLevel_~tmp~6);isHighWaterLevel_~tmp___0~1 := 1; {3979#false} is VALID [2020-07-28 18:58:28,228 INFO L280 TraceCheckUtils]: 20: Hoare triple {3979#false} isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; {3979#false} is VALID [2020-07-28 18:58:28,228 INFO L280 TraceCheckUtils]: 21: Hoare triple {3979#false} processEnvironment_#t~ret39 := isHighWaterLevel_#res;assume -2147483648 <= processEnvironment_#t~ret39 && processEnvironment_#t~ret39 <= 2147483647;processEnvironment_~tmp~4 := processEnvironment_#t~ret39;havoc processEnvironment_#t~ret39; {3979#false} is VALID [2020-07-28 18:58:28,228 INFO L280 TraceCheckUtils]: 22: Hoare triple {3979#false} assume 0 != processEnvironment_~tmp~4;havoc activatePump_#t~ret40, activatePump_~tmp~5;havoc activatePump_~tmp~5;havoc isMethaneAlarm_#res;havoc isMethaneAlarm_#t~ret41, isMethaneAlarm_~retValue_acc~3;havoc isMethaneAlarm_~retValue_acc~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; {3979#false} is VALID [2020-07-28 18:58:28,229 INFO L280 TraceCheckUtils]: 23: Hoare triple {3979#false} isMethaneAlarm_#t~ret41 := isMethaneLevelCritical_#res;assume -2147483648 <= isMethaneAlarm_#t~ret41 && isMethaneAlarm_#t~ret41 <= 2147483647;isMethaneAlarm_~retValue_acc~3 := isMethaneAlarm_#t~ret41;havoc isMethaneAlarm_#t~ret41;isMethaneAlarm_#res := isMethaneAlarm_~retValue_acc~3; {3979#false} is VALID [2020-07-28 18:58:28,229 INFO L280 TraceCheckUtils]: 24: Hoare triple {3979#false} activatePump_#t~ret40 := isMethaneAlarm_#res;assume -2147483648 <= activatePump_#t~ret40 && activatePump_#t~ret40 <= 2147483647;activatePump_~tmp~5 := activatePump_#t~ret40;havoc activatePump_#t~ret40; {3979#false} is VALID [2020-07-28 18:58:28,229 INFO L280 TraceCheckUtils]: 25: Hoare triple {3979#false} assume !(0 != activatePump_~tmp~5);~pumpRunning~0 := 1; {3979#false} is VALID [2020-07-28 18:58:28,230 INFO L280 TraceCheckUtils]: 26: Hoare triple {3979#false} havoc __utac_acc__Specification1_spec__1_#t~ret69, __utac_acc__Specification1_spec__1_#t~ret70, __utac_acc__Specification1_spec__1_~tmp~7, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~7;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; {3979#false} is VALID [2020-07-28 18:58:28,230 INFO L280 TraceCheckUtils]: 27: Hoare triple {3979#false} __utac_acc__Specification1_spec__1_#t~ret69 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret69 && __utac_acc__Specification1_spec__1_#t~ret69 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp~7 := __utac_acc__Specification1_spec__1_#t~ret69;havoc __utac_acc__Specification1_spec__1_#t~ret69; {3979#false} is VALID [2020-07-28 18:58:28,230 INFO L280 TraceCheckUtils]: 28: Hoare triple {3979#false} assume 0 != __utac_acc__Specification1_spec__1_~tmp~7;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; {3979#false} is VALID [2020-07-28 18:58:28,230 INFO L280 TraceCheckUtils]: 29: Hoare triple {3979#false} __utac_acc__Specification1_spec__1_#t~ret70 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret70 && __utac_acc__Specification1_spec__1_#t~ret70 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp___0~2 := __utac_acc__Specification1_spec__1_#t~ret70;havoc __utac_acc__Specification1_spec__1_#t~ret70; {3979#false} is VALID [2020-07-28 18:58:28,231 INFO L280 TraceCheckUtils]: 30: Hoare triple {3979#false} assume 0 != __utac_acc__Specification1_spec__1_~tmp___0~2; {3979#false} is VALID [2020-07-28 18:58:28,231 INFO L280 TraceCheckUtils]: 31: Hoare triple {3979#false} assume !false; {3979#false} is VALID [2020-07-28 18:58:28,233 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 18:58:28,233 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525625399] [2020-07-28 18:58:28,233 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:58:28,234 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 18:58:28,234 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695055321] [2020-07-28 18:58:28,234 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2020-07-28 18:58:28,235 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:58:28,235 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 18:58:28,275 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 32 edges. 32 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:58:28,275 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 18:58:28,276 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:58:28,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 18:58:28,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 18:58:28,276 INFO L87 Difference]: Start difference. First operand 82 states and 112 transitions. Second operand 3 states. [2020-07-28 18:58:28,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:28,702 INFO L93 Difference]: Finished difference Result 203 states and 279 transitions. [2020-07-28 18:58:28,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 18:58:28,703 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2020-07-28 18:58:28,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:58:28,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 18:58:28,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 140 transitions. [2020-07-28 18:58:28,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 18:58:28,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 140 transitions. [2020-07-28 18:58:28,708 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 140 transitions. [2020-07-28 18:58:28,906 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 18:58:28,908 INFO L225 Difference]: With dead ends: 203 [2020-07-28 18:58:28,908 INFO L226 Difference]: Without dead ends: 127 [2020-07-28 18:58:28,909 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 18:58:28,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-07-28 18:58:29,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2020-07-28 18:58:29,181 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:58:29,181 INFO L82 GeneralOperation]: Start isEquivalent. First operand 127 states. Second operand 127 states. [2020-07-28 18:58:29,181 INFO L74 IsIncluded]: Start isIncluded. First operand 127 states. Second operand 127 states. [2020-07-28 18:58:29,181 INFO L87 Difference]: Start difference. First operand 127 states. Second operand 127 states. [2020-07-28 18:58:29,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:29,186 INFO L93 Difference]: Finished difference Result 127 states and 170 transitions. [2020-07-28 18:58:29,187 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 170 transitions. [2020-07-28 18:58:29,187 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:29,187 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:29,187 INFO L74 IsIncluded]: Start isIncluded. First operand 127 states. Second operand 127 states. [2020-07-28 18:58:29,188 INFO L87 Difference]: Start difference. First operand 127 states. Second operand 127 states. [2020-07-28 18:58:29,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:29,192 INFO L93 Difference]: Finished difference Result 127 states and 170 transitions. [2020-07-28 18:58:29,192 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 170 transitions. [2020-07-28 18:58:29,193 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:29,193 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:29,193 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:58:29,194 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:58:29,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-07-28 18:58:29,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 170 transitions. [2020-07-28 18:58:29,198 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 170 transitions. Word has length 32 [2020-07-28 18:58:29,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:58:29,199 INFO L479 AbstractCegarLoop]: Abstraction has 127 states and 170 transitions. [2020-07-28 18:58:29,199 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 18:58:29,199 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 170 transitions. [2020-07-28 18:58:29,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-07-28 18:58:29,200 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:58:29,200 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 18:58:29,201 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-28 18:58:29,201 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:58:29,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:58:29,201 INFO L82 PathProgramCache]: Analyzing trace with hash 470682401, now seen corresponding path program 1 times [2020-07-28 18:58:29,202 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:58:29,202 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273717427] [2020-07-28 18:58:29,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:58:29,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:58:29,293 INFO L280 TraceCheckUtils]: 0: Hoare triple {4704#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(110, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 2 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 3 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(80, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(117, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(109, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(112, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(32, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(77, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(101, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(116, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(104, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string64.base, #t~string64.offset, 1);call write~init~int(82, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(73, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(84, #t~string64.base, 3 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 4 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(75, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 1 + #t~string68.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; {4706#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:29,295 INFO L280 TraceCheckUtils]: 1: Hoare triple {4706#(= 0 ~methaneLevelCritical~0)} havoc main_#res;havoc main_#t~ret72, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; {4706#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:29,295 INFO L280 TraceCheckUtils]: 2: Hoare triple {4706#(= 0 ~methaneLevelCritical~0)} havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; {4706#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:29,297 INFO L280 TraceCheckUtils]: 3: Hoare triple {4706#(= 0 ~methaneLevelCritical~0)} main_#t~ret72 := valid_product_#res;assume -2147483648 <= main_#t~ret72 && main_#t~ret72 <= 2147483647;main_~tmp~8 := main_#t~ret72;havoc main_#t~ret72; {4706#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:29,302 INFO L280 TraceCheckUtils]: 4: Hoare triple {4706#(= 0 ~methaneLevelCritical~0)} assume 0 != main_~tmp~8; {4706#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:29,304 INFO L280 TraceCheckUtils]: 5: Hoare triple {4706#(= 0 ~methaneLevelCritical~0)} havoc test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {4706#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:29,304 INFO L280 TraceCheckUtils]: 6: Hoare triple {4706#(= 0 ~methaneLevelCritical~0)} assume !false; {4706#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:29,305 INFO L280 TraceCheckUtils]: 7: Hoare triple {4706#(= 0 ~methaneLevelCritical~0)} assume test_~splverifierCounter~0 < 4; {4706#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:29,306 INFO L280 TraceCheckUtils]: 8: Hoare triple {4706#(= 0 ~methaneLevelCritical~0)} assume -2147483648 <= test_#t~nondet35 && test_#t~nondet35 <= 2147483647;test_~tmp~3 := test_#t~nondet35;havoc test_#t~nondet35; {4706#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:29,306 INFO L280 TraceCheckUtils]: 9: Hoare triple {4706#(= 0 ~methaneLevelCritical~0)} assume 0 != test_~tmp~3; {4706#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:29,307 INFO L280 TraceCheckUtils]: 10: Hoare triple {4706#(= 0 ~methaneLevelCritical~0)} assume ~waterLevel~0 < 2;~waterLevel~0 := 1 + ~waterLevel~0; {4706#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:29,308 INFO L280 TraceCheckUtils]: 11: Hoare triple {4706#(= 0 ~methaneLevelCritical~0)} assume -2147483648 <= test_#t~nondet36 && test_#t~nondet36 <= 2147483647;test_~tmp___0~0 := test_#t~nondet36;havoc test_#t~nondet36; {4706#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:29,309 INFO L280 TraceCheckUtils]: 12: Hoare triple {4706#(= 0 ~methaneLevelCritical~0)} assume !(0 != test_~tmp___0~0); {4706#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:29,309 INFO L280 TraceCheckUtils]: 13: Hoare triple {4706#(= 0 ~methaneLevelCritical~0)} assume -2147483648 <= test_#t~nondet37 && test_#t~nondet37 <= 2147483647;test_~tmp___2~0 := test_#t~nondet37;havoc test_#t~nondet37; {4706#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:29,310 INFO L280 TraceCheckUtils]: 14: Hoare triple {4706#(= 0 ~methaneLevelCritical~0)} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {4706#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:29,311 INFO L280 TraceCheckUtils]: 15: Hoare triple {4706#(= 0 ~methaneLevelCritical~0)} assume !(0 != ~pumpRunning~0); {4706#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:29,312 INFO L280 TraceCheckUtils]: 16: Hoare triple {4706#(= 0 ~methaneLevelCritical~0)} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret39, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; {4706#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:29,312 INFO L280 TraceCheckUtils]: 17: Hoare triple {4706#(= 0 ~methaneLevelCritical~0)} assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret58, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~6, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~6;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; {4706#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:29,313 INFO L280 TraceCheckUtils]: 18: Hoare triple {4706#(= 0 ~methaneLevelCritical~0)} assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~8 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; {4706#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:29,314 INFO L280 TraceCheckUtils]: 19: Hoare triple {4706#(= 0 ~methaneLevelCritical~0)} isHighWaterLevel_#t~ret58 := isHighWaterSensorDry_#res;assume -2147483648 <= isHighWaterLevel_#t~ret58 && isHighWaterLevel_#t~ret58 <= 2147483647;isHighWaterLevel_~tmp~6 := isHighWaterLevel_#t~ret58;havoc isHighWaterLevel_#t~ret58; {4706#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:29,315 INFO L280 TraceCheckUtils]: 20: Hoare triple {4706#(= 0 ~methaneLevelCritical~0)} assume !(0 != isHighWaterLevel_~tmp~6);isHighWaterLevel_~tmp___0~1 := 1; {4706#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:29,316 INFO L280 TraceCheckUtils]: 21: Hoare triple {4706#(= 0 ~methaneLevelCritical~0)} isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; {4706#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:29,317 INFO L280 TraceCheckUtils]: 22: Hoare triple {4706#(= 0 ~methaneLevelCritical~0)} processEnvironment_#t~ret39 := isHighWaterLevel_#res;assume -2147483648 <= processEnvironment_#t~ret39 && processEnvironment_#t~ret39 <= 2147483647;processEnvironment_~tmp~4 := processEnvironment_#t~ret39;havoc processEnvironment_#t~ret39; {4706#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:29,317 INFO L280 TraceCheckUtils]: 23: Hoare triple {4706#(= 0 ~methaneLevelCritical~0)} assume 0 != processEnvironment_~tmp~4;havoc activatePump_#t~ret40, activatePump_~tmp~5;havoc activatePump_~tmp~5;havoc isMethaneAlarm_#res;havoc isMethaneAlarm_#t~ret41, isMethaneAlarm_~retValue_acc~3;havoc isMethaneAlarm_~retValue_acc~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; {4706#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:29,318 INFO L280 TraceCheckUtils]: 24: Hoare triple {4706#(= 0 ~methaneLevelCritical~0)} isMethaneAlarm_#t~ret41 := isMethaneLevelCritical_#res;assume -2147483648 <= isMethaneAlarm_#t~ret41 && isMethaneAlarm_#t~ret41 <= 2147483647;isMethaneAlarm_~retValue_acc~3 := isMethaneAlarm_#t~ret41;havoc isMethaneAlarm_#t~ret41;isMethaneAlarm_#res := isMethaneAlarm_~retValue_acc~3; {4706#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:29,319 INFO L280 TraceCheckUtils]: 25: Hoare triple {4706#(= 0 ~methaneLevelCritical~0)} activatePump_#t~ret40 := isMethaneAlarm_#res;assume -2147483648 <= activatePump_#t~ret40 && activatePump_#t~ret40 <= 2147483647;activatePump_~tmp~5 := activatePump_#t~ret40;havoc activatePump_#t~ret40; {4706#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:29,319 INFO L280 TraceCheckUtils]: 26: Hoare triple {4706#(= 0 ~methaneLevelCritical~0)} assume !(0 != activatePump_~tmp~5);~pumpRunning~0 := 1; {4706#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:29,320 INFO L280 TraceCheckUtils]: 27: Hoare triple {4706#(= 0 ~methaneLevelCritical~0)} havoc __utac_acc__Specification1_spec__1_#t~ret69, __utac_acc__Specification1_spec__1_#t~ret70, __utac_acc__Specification1_spec__1_~tmp~7, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~7;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; {4707#(= 0 |ULTIMATE.start_isMethaneLevelCritical_#res|)} is VALID [2020-07-28 18:58:29,321 INFO L280 TraceCheckUtils]: 28: Hoare triple {4707#(= 0 |ULTIMATE.start_isMethaneLevelCritical_#res|)} __utac_acc__Specification1_spec__1_#t~ret69 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret69 && __utac_acc__Specification1_spec__1_#t~ret69 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp~7 := __utac_acc__Specification1_spec__1_#t~ret69;havoc __utac_acc__Specification1_spec__1_#t~ret69; {4708#(= ULTIMATE.start___utac_acc__Specification1_spec__1_~tmp~7 0)} is VALID [2020-07-28 18:58:29,322 INFO L280 TraceCheckUtils]: 29: Hoare triple {4708#(= ULTIMATE.start___utac_acc__Specification1_spec__1_~tmp~7 0)} assume 0 != __utac_acc__Specification1_spec__1_~tmp~7;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; {4705#false} is VALID [2020-07-28 18:58:29,322 INFO L280 TraceCheckUtils]: 30: Hoare triple {4705#false} __utac_acc__Specification1_spec__1_#t~ret70 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret70 && __utac_acc__Specification1_spec__1_#t~ret70 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp___0~2 := __utac_acc__Specification1_spec__1_#t~ret70;havoc __utac_acc__Specification1_spec__1_#t~ret70; {4705#false} is VALID [2020-07-28 18:58:29,322 INFO L280 TraceCheckUtils]: 31: Hoare triple {4705#false} assume 0 != __utac_acc__Specification1_spec__1_~tmp___0~2; {4705#false} is VALID [2020-07-28 18:58:29,323 INFO L280 TraceCheckUtils]: 32: Hoare triple {4705#false} assume !false; {4705#false} is VALID [2020-07-28 18:58:29,325 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 18:58:29,325 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273717427] [2020-07-28 18:58:29,325 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:58:29,325 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 18:58:29,325 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664634672] [2020-07-28 18:58:29,326 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2020-07-28 18:58:29,327 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:58:29,327 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 18:58:29,372 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 18:58:29,372 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 18:58:29,372 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:58:29,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 18:58:29,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-28 18:58:29,373 INFO L87 Difference]: Start difference. First operand 127 states and 170 transitions. Second operand 5 states. [2020-07-28 18:58:31,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:31,315 INFO L93 Difference]: Finished difference Result 640 states and 870 transitions. [2020-07-28 18:58:31,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-28 18:58:31,315 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2020-07-28 18:58:31,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:58:31,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 18:58:31,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 285 transitions. [2020-07-28 18:58:31,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 18:58:31,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 285 transitions. [2020-07-28 18:58:31,326 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states and 285 transitions. [2020-07-28 18:58:31,694 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 285 edges. 285 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:58:31,715 INFO L225 Difference]: With dead ends: 640 [2020-07-28 18:58:31,716 INFO L226 Difference]: Without dead ends: 519 [2020-07-28 18:58:31,718 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 18:58:31,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2020-07-28 18:58:32,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 236. [2020-07-28 18:58:32,270 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:58:32,270 INFO L82 GeneralOperation]: Start isEquivalent. First operand 519 states. Second operand 236 states. [2020-07-28 18:58:32,270 INFO L74 IsIncluded]: Start isIncluded. First operand 519 states. Second operand 236 states. [2020-07-28 18:58:32,271 INFO L87 Difference]: Start difference. First operand 519 states. Second operand 236 states. [2020-07-28 18:58:32,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:32,289 INFO L93 Difference]: Finished difference Result 519 states and 694 transitions. [2020-07-28 18:58:32,289 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 694 transitions. [2020-07-28 18:58:32,290 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:32,290 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:32,291 INFO L74 IsIncluded]: Start isIncluded. First operand 236 states. Second operand 519 states. [2020-07-28 18:58:32,291 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 519 states. [2020-07-28 18:58:32,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:32,309 INFO L93 Difference]: Finished difference Result 519 states and 694 transitions. [2020-07-28 18:58:32,309 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 694 transitions. [2020-07-28 18:58:32,310 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:32,310 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:32,310 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:58:32,311 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:58:32,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2020-07-28 18:58:32,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 312 transitions. [2020-07-28 18:58:32,317 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 312 transitions. Word has length 33 [2020-07-28 18:58:32,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:58:32,317 INFO L479 AbstractCegarLoop]: Abstraction has 236 states and 312 transitions. [2020-07-28 18:58:32,318 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 18:58:32,318 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 312 transitions. [2020-07-28 18:58:32,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-07-28 18:58:32,319 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:58:32,319 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 18:58:32,319 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-28 18:58:32,320 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:58:32,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:58:32,320 INFO L82 PathProgramCache]: Analyzing trace with hash -271506405, now seen corresponding path program 1 times [2020-07-28 18:58:32,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:58:32,321 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544970297] [2020-07-28 18:58:32,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:58:32,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:58:32,416 INFO L280 TraceCheckUtils]: 0: Hoare triple {7010#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(110, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 2 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 3 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(80, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(117, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(109, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(112, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(32, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(77, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(101, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(116, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(104, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string64.base, #t~string64.offset, 1);call write~init~int(82, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(73, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(84, #t~string64.base, 3 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 4 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(75, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 1 + #t~string68.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; {7010#true} is VALID [2020-07-28 18:58:32,416 INFO L280 TraceCheckUtils]: 1: Hoare triple {7010#true} havoc main_#res;havoc main_#t~ret72, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; {7010#true} is VALID [2020-07-28 18:58:32,416 INFO L280 TraceCheckUtils]: 2: Hoare triple {7010#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; {7010#true} is VALID [2020-07-28 18:58:32,416 INFO L280 TraceCheckUtils]: 3: Hoare triple {7010#true} main_#t~ret72 := valid_product_#res;assume -2147483648 <= main_#t~ret72 && main_#t~ret72 <= 2147483647;main_~tmp~8 := main_#t~ret72;havoc main_#t~ret72; {7010#true} is VALID [2020-07-28 18:58:32,417 INFO L280 TraceCheckUtils]: 4: Hoare triple {7010#true} assume 0 != main_~tmp~8; {7010#true} is VALID [2020-07-28 18:58:32,417 INFO L280 TraceCheckUtils]: 5: Hoare triple {7010#true} havoc test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {7010#true} is VALID [2020-07-28 18:58:32,417 INFO L280 TraceCheckUtils]: 6: Hoare triple {7010#true} assume !false; {7010#true} is VALID [2020-07-28 18:58:32,417 INFO L280 TraceCheckUtils]: 7: Hoare triple {7010#true} assume test_~splverifierCounter~0 < 4; {7010#true} is VALID [2020-07-28 18:58:32,418 INFO L280 TraceCheckUtils]: 8: Hoare triple {7010#true} assume -2147483648 <= test_#t~nondet35 && test_#t~nondet35 <= 2147483647;test_~tmp~3 := test_#t~nondet35;havoc test_#t~nondet35; {7010#true} is VALID [2020-07-28 18:58:32,418 INFO L280 TraceCheckUtils]: 9: Hoare triple {7010#true} assume 0 != test_~tmp~3; {7010#true} is VALID [2020-07-28 18:58:32,418 INFO L280 TraceCheckUtils]: 10: Hoare triple {7010#true} assume ~waterLevel~0 < 2;~waterLevel~0 := 1 + ~waterLevel~0; {7010#true} is VALID [2020-07-28 18:58:32,419 INFO L280 TraceCheckUtils]: 11: Hoare triple {7010#true} assume -2147483648 <= test_#t~nondet36 && test_#t~nondet36 <= 2147483647;test_~tmp___0~0 := test_#t~nondet36;havoc test_#t~nondet36; {7010#true} is VALID [2020-07-28 18:58:32,420 INFO L280 TraceCheckUtils]: 12: Hoare triple {7010#true} assume 0 != test_~tmp___0~0; {7010#true} is VALID [2020-07-28 18:58:32,421 INFO L280 TraceCheckUtils]: 13: Hoare triple {7010#true} assume !(0 != ~methaneLevelCritical~0);~methaneLevelCritical~0 := 1; {7012#(= 1 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:32,422 INFO L280 TraceCheckUtils]: 14: Hoare triple {7012#(= 1 ~methaneLevelCritical~0)} assume -2147483648 <= test_#t~nondet37 && test_#t~nondet37 <= 2147483647;test_~tmp___2~0 := test_#t~nondet37;havoc test_#t~nondet37; {7012#(= 1 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:32,423 INFO L280 TraceCheckUtils]: 15: Hoare triple {7012#(= 1 ~methaneLevelCritical~0)} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {7012#(= 1 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:32,423 INFO L280 TraceCheckUtils]: 16: Hoare triple {7012#(= 1 ~methaneLevelCritical~0)} assume !(0 != ~pumpRunning~0); {7012#(= 1 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:32,424 INFO L280 TraceCheckUtils]: 17: Hoare triple {7012#(= 1 ~methaneLevelCritical~0)} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret39, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; {7012#(= 1 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:32,425 INFO L280 TraceCheckUtils]: 18: Hoare triple {7012#(= 1 ~methaneLevelCritical~0)} assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret58, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~6, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~6;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; {7012#(= 1 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:32,427 INFO L280 TraceCheckUtils]: 19: Hoare triple {7012#(= 1 ~methaneLevelCritical~0)} assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~8 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; {7012#(= 1 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:32,428 INFO L280 TraceCheckUtils]: 20: Hoare triple {7012#(= 1 ~methaneLevelCritical~0)} isHighWaterLevel_#t~ret58 := isHighWaterSensorDry_#res;assume -2147483648 <= isHighWaterLevel_#t~ret58 && isHighWaterLevel_#t~ret58 <= 2147483647;isHighWaterLevel_~tmp~6 := isHighWaterLevel_#t~ret58;havoc isHighWaterLevel_#t~ret58; {7012#(= 1 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:32,432 INFO L280 TraceCheckUtils]: 21: Hoare triple {7012#(= 1 ~methaneLevelCritical~0)} assume !(0 != isHighWaterLevel_~tmp~6);isHighWaterLevel_~tmp___0~1 := 1; {7012#(= 1 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:32,434 INFO L280 TraceCheckUtils]: 22: Hoare triple {7012#(= 1 ~methaneLevelCritical~0)} isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; {7012#(= 1 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:32,438 INFO L280 TraceCheckUtils]: 23: Hoare triple {7012#(= 1 ~methaneLevelCritical~0)} processEnvironment_#t~ret39 := isHighWaterLevel_#res;assume -2147483648 <= processEnvironment_#t~ret39 && processEnvironment_#t~ret39 <= 2147483647;processEnvironment_~tmp~4 := processEnvironment_#t~ret39;havoc processEnvironment_#t~ret39; {7012#(= 1 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:58:32,440 INFO L280 TraceCheckUtils]: 24: Hoare triple {7012#(= 1 ~methaneLevelCritical~0)} assume 0 != processEnvironment_~tmp~4;havoc activatePump_#t~ret40, activatePump_~tmp~5;havoc activatePump_~tmp~5;havoc isMethaneAlarm_#res;havoc isMethaneAlarm_#t~ret41, isMethaneAlarm_~retValue_acc~3;havoc isMethaneAlarm_~retValue_acc~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; {7013#(= 1 |ULTIMATE.start_isMethaneLevelCritical_#res|)} is VALID [2020-07-28 18:58:32,442 INFO L280 TraceCheckUtils]: 25: Hoare triple {7013#(= 1 |ULTIMATE.start_isMethaneLevelCritical_#res|)} isMethaneAlarm_#t~ret41 := isMethaneLevelCritical_#res;assume -2147483648 <= isMethaneAlarm_#t~ret41 && isMethaneAlarm_#t~ret41 <= 2147483647;isMethaneAlarm_~retValue_acc~3 := isMethaneAlarm_#t~ret41;havoc isMethaneAlarm_#t~ret41;isMethaneAlarm_#res := isMethaneAlarm_~retValue_acc~3; {7014#(= 1 |ULTIMATE.start_isMethaneAlarm_#res|)} is VALID [2020-07-28 18:58:32,443 INFO L280 TraceCheckUtils]: 26: Hoare triple {7014#(= 1 |ULTIMATE.start_isMethaneAlarm_#res|)} activatePump_#t~ret40 := isMethaneAlarm_#res;assume -2147483648 <= activatePump_#t~ret40 && activatePump_#t~ret40 <= 2147483647;activatePump_~tmp~5 := activatePump_#t~ret40;havoc activatePump_#t~ret40; {7015#(= 1 ULTIMATE.start_activatePump_~tmp~5)} is VALID [2020-07-28 18:58:32,444 INFO L280 TraceCheckUtils]: 27: Hoare triple {7015#(= 1 ULTIMATE.start_activatePump_~tmp~5)} assume !(0 != activatePump_~tmp~5);~pumpRunning~0 := 1; {7011#false} is VALID [2020-07-28 18:58:32,445 INFO L280 TraceCheckUtils]: 28: Hoare triple {7011#false} havoc __utac_acc__Specification1_spec__1_#t~ret69, __utac_acc__Specification1_spec__1_#t~ret70, __utac_acc__Specification1_spec__1_~tmp~7, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~7;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; {7011#false} is VALID [2020-07-28 18:58:32,445 INFO L280 TraceCheckUtils]: 29: Hoare triple {7011#false} __utac_acc__Specification1_spec__1_#t~ret69 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret69 && __utac_acc__Specification1_spec__1_#t~ret69 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp~7 := __utac_acc__Specification1_spec__1_#t~ret69;havoc __utac_acc__Specification1_spec__1_#t~ret69; {7011#false} is VALID [2020-07-28 18:58:32,445 INFO L280 TraceCheckUtils]: 30: Hoare triple {7011#false} assume 0 != __utac_acc__Specification1_spec__1_~tmp~7;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; {7011#false} is VALID [2020-07-28 18:58:32,445 INFO L280 TraceCheckUtils]: 31: Hoare triple {7011#false} __utac_acc__Specification1_spec__1_#t~ret70 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret70 && __utac_acc__Specification1_spec__1_#t~ret70 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp___0~2 := __utac_acc__Specification1_spec__1_#t~ret70;havoc __utac_acc__Specification1_spec__1_#t~ret70; {7011#false} is VALID [2020-07-28 18:58:32,446 INFO L280 TraceCheckUtils]: 32: Hoare triple {7011#false} assume 0 != __utac_acc__Specification1_spec__1_~tmp___0~2; {7011#false} is VALID [2020-07-28 18:58:32,446 INFO L280 TraceCheckUtils]: 33: Hoare triple {7011#false} assume !false; {7011#false} is VALID [2020-07-28 18:58:32,450 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 18:58:32,450 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544970297] [2020-07-28 18:58:32,451 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:58:32,451 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-28 18:58:32,452 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139229625] [2020-07-28 18:58:32,454 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2020-07-28 18:58:32,454 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:58:32,454 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-28 18:58:32,508 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 18:58:32,508 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-28 18:58:32,508 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:58:32,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-28 18:58:32,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-28 18:58:32,509 INFO L87 Difference]: Start difference. First operand 236 states and 312 transitions. Second operand 6 states. [2020-07-28 18:58:35,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:35,154 INFO L93 Difference]: Finished difference Result 726 states and 964 transitions. [2020-07-28 18:58:35,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-28 18:58:35,155 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2020-07-28 18:58:35,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:58:35,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 18:58:35,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 313 transitions. [2020-07-28 18:58:35,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 18:58:35,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 313 transitions. [2020-07-28 18:58:35,160 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states and 313 transitions. [2020-07-28 18:58:35,524 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 313 edges. 313 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:58:35,542 INFO L225 Difference]: With dead ends: 726 [2020-07-28 18:58:35,543 INFO L226 Difference]: Without dead ends: 496 [2020-07-28 18:58:35,546 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-07-28 18:58:35,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2020-07-28 18:58:36,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 236. [2020-07-28 18:58:36,156 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:58:36,156 INFO L82 GeneralOperation]: Start isEquivalent. First operand 496 states. Second operand 236 states. [2020-07-28 18:58:36,156 INFO L74 IsIncluded]: Start isIncluded. First operand 496 states. Second operand 236 states. [2020-07-28 18:58:36,156 INFO L87 Difference]: Start difference. First operand 496 states. Second operand 236 states. [2020-07-28 18:58:36,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:36,170 INFO L93 Difference]: Finished difference Result 496 states and 650 transitions. [2020-07-28 18:58:36,171 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 650 transitions. [2020-07-28 18:58:36,172 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:36,172 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:36,172 INFO L74 IsIncluded]: Start isIncluded. First operand 236 states. Second operand 496 states. [2020-07-28 18:58:36,173 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 496 states. [2020-07-28 18:58:36,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:36,189 INFO L93 Difference]: Finished difference Result 496 states and 650 transitions. [2020-07-28 18:58:36,189 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 650 transitions. [2020-07-28 18:58:36,190 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:36,190 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:36,190 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:58:36,191 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:58:36,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2020-07-28 18:58:36,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 306 transitions. [2020-07-28 18:58:36,197 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 306 transitions. Word has length 34 [2020-07-28 18:58:36,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:58:36,198 INFO L479 AbstractCegarLoop]: Abstraction has 236 states and 306 transitions. [2020-07-28 18:58:36,198 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-28 18:58:36,198 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 306 transitions. [2020-07-28 18:58:36,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-07-28 18:58:36,199 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:58:36,200 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 18:58:36,200 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-28 18:58:36,200 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:58:36,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:58:36,201 INFO L82 PathProgramCache]: Analyzing trace with hash 1907454321, now seen corresponding path program 1 times [2020-07-28 18:58:36,201 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:58:36,201 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38537425] [2020-07-28 18:58:36,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:58:36,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 18:58:36,254 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 18:58:36,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 18:58:36,305 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 18:58:36,360 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-28 18:58:36,360 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-28 18:58:36,360 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-28 18:58:36,541 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 18:58:36,541 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-28 18:58:36,542 WARN L170 areAnnotationChecker]: L838 has no Hoare annotation [2020-07-28 18:58:36,542 WARN L170 areAnnotationChecker]: L846 has no Hoare annotation [2020-07-28 18:58:36,543 WARN L170 areAnnotationChecker]: L933 has no Hoare annotation [2020-07-28 18:58:36,543 WARN L170 areAnnotationChecker]: L933 has no Hoare annotation [2020-07-28 18:58:36,543 WARN L170 areAnnotationChecker]: L910 has no Hoare annotation [2020-07-28 18:58:36,543 WARN L170 areAnnotationChecker]: L933-1 has no Hoare annotation [2020-07-28 18:58:36,543 WARN L170 areAnnotationChecker]: L795-1 has no Hoare annotation [2020-07-28 18:58:36,543 WARN L170 areAnnotationChecker]: L795-1 has no Hoare annotation [2020-07-28 18:58:36,543 WARN L170 areAnnotationChecker]: L795-1 has no Hoare annotation [2020-07-28 18:58:36,544 WARN L170 areAnnotationChecker]: L942 has no Hoare annotation [2020-07-28 18:58:36,544 WARN L170 areAnnotationChecker]: L481 has no Hoare annotation [2020-07-28 18:58:36,544 WARN L170 areAnnotationChecker]: L432 has no Hoare annotation [2020-07-28 18:58:36,544 WARN L170 areAnnotationChecker]: L432 has no Hoare annotation [2020-07-28 18:58:36,544 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 18:58:36,544 WARN L170 areAnnotationChecker]: L506-1 has no Hoare annotation [2020-07-28 18:58:36,545 WARN L170 areAnnotationChecker]: L506-1 has no Hoare annotation [2020-07-28 18:58:36,545 WARN L170 areAnnotationChecker]: L433 has no Hoare annotation [2020-07-28 18:58:36,545 WARN L170 areAnnotationChecker]: L699-3 has no Hoare annotation [2020-07-28 18:58:36,545 WARN L170 areAnnotationChecker]: L699-3 has no Hoare annotation [2020-07-28 18:58:36,545 WARN L170 areAnnotationChecker]: L506-2 has no Hoare annotation [2020-07-28 18:58:36,545 WARN L170 areAnnotationChecker]: L506-2 has no Hoare annotation [2020-07-28 18:58:36,546 WARN L170 areAnnotationChecker]: L441 has no Hoare annotation [2020-07-28 18:58:36,546 WARN L170 areAnnotationChecker]: L441 has no Hoare annotation [2020-07-28 18:58:36,546 WARN L170 areAnnotationChecker]: L538-1 has no Hoare annotation [2020-07-28 18:58:36,546 WARN L170 areAnnotationChecker]: L538-1 has no Hoare annotation [2020-07-28 18:58:36,546 WARN L170 areAnnotationChecker]: L513-1 has no Hoare annotation [2020-07-28 18:58:36,546 WARN L170 areAnnotationChecker]: L711 has no Hoare annotation [2020-07-28 18:58:36,547 WARN L170 areAnnotationChecker]: L711 has no Hoare annotation [2020-07-28 18:58:36,547 WARN L170 areAnnotationChecker]: L441-1 has no Hoare annotation [2020-07-28 18:58:36,547 WARN L170 areAnnotationChecker]: L776-1 has no Hoare annotation [2020-07-28 18:58:36,547 WARN L170 areAnnotationChecker]: L776-1 has no Hoare annotation [2020-07-28 18:58:36,547 WARN L170 areAnnotationChecker]: L736-3 has no Hoare annotation [2020-07-28 18:58:36,547 WARN L170 areAnnotationChecker]: L451 has no Hoare annotation [2020-07-28 18:58:36,548 WARN L170 areAnnotationChecker]: L451 has no Hoare annotation [2020-07-28 18:58:36,548 WARN L170 areAnnotationChecker]: L781-1 has no Hoare annotation [2020-07-28 18:58:36,548 WARN L170 areAnnotationChecker]: L795-2 has no Hoare annotation [2020-07-28 18:58:36,548 WARN L170 areAnnotationChecker]: L795-2 has no Hoare annotation [2020-07-28 18:58:36,548 WARN L170 areAnnotationChecker]: L723 has no Hoare annotation [2020-07-28 18:58:36,549 WARN L170 areAnnotationChecker]: L723 has no Hoare annotation [2020-07-28 18:58:36,549 WARN L170 areAnnotationChecker]: L451-1 has no Hoare annotation [2020-07-28 18:58:36,549 WARN L170 areAnnotationChecker]: L658-3 has no Hoare annotation [2020-07-28 18:58:36,549 WARN L170 areAnnotationChecker]: L658-3 has no Hoare annotation [2020-07-28 18:58:36,549 WARN L170 areAnnotationChecker]: L609-1 has no Hoare annotation [2020-07-28 18:58:36,549 WARN L170 areAnnotationChecker]: L795-3 has no Hoare annotation [2020-07-28 18:58:36,550 WARN L170 areAnnotationChecker]: L461 has no Hoare annotation [2020-07-28 18:58:36,550 WARN L170 areAnnotationChecker]: L461 has no Hoare annotation [2020-07-28 18:58:36,550 WARN L170 areAnnotationChecker]: L658-5 has no Hoare annotation [2020-07-28 18:58:36,550 WARN L170 areAnnotationChecker]: L799-2 has no Hoare annotation [2020-07-28 18:58:36,550 WARN L170 areAnnotationChecker]: L799-2 has no Hoare annotation [2020-07-28 18:58:36,551 WARN L170 areAnnotationChecker]: L862-2 has no Hoare annotation [2020-07-28 18:58:36,551 WARN L170 areAnnotationChecker]: L862-2 has no Hoare annotation [2020-07-28 18:58:36,551 WARN L170 areAnnotationChecker]: L862-2 has no Hoare annotation [2020-07-28 18:58:36,551 WARN L170 areAnnotationChecker]: L469-1 has no Hoare annotation [2020-07-28 18:58:36,551 WARN L170 areAnnotationChecker]: L469-1 has no Hoare annotation [2020-07-28 18:58:36,551 WARN L170 areAnnotationChecker]: L469 has no Hoare annotation [2020-07-28 18:58:36,552 WARN L170 areAnnotationChecker]: L469 has no Hoare annotation [2020-07-28 18:58:36,552 WARN L170 areAnnotationChecker]: L664-1 has no Hoare annotation [2020-07-28 18:58:36,552 WARN L170 areAnnotationChecker]: L44-1 has no Hoare annotation [2020-07-28 18:58:36,552 WARN L170 areAnnotationChecker]: L44-1 has no Hoare annotation [2020-07-28 18:58:36,552 WARN L170 areAnnotationChecker]: L863 has no Hoare annotation [2020-07-28 18:58:36,553 WARN L170 areAnnotationChecker]: L699 has no Hoare annotation [2020-07-28 18:58:36,553 WARN L170 areAnnotationChecker]: L699 has no Hoare annotation [2020-07-28 18:58:36,553 WARN L170 areAnnotationChecker]: L506 has no Hoare annotation [2020-07-28 18:58:36,553 WARN L170 areAnnotationChecker]: L506 has no Hoare annotation [2020-07-28 18:58:36,553 WARN L170 areAnnotationChecker]: L672 has no Hoare annotation [2020-07-28 18:58:36,554 WARN L170 areAnnotationChecker]: L672 has no Hoare annotation [2020-07-28 18:58:36,554 WARN L170 areAnnotationChecker]: L542-1 has no Hoare annotation [2020-07-28 18:58:36,554 WARN L170 areAnnotationChecker]: L542-1 has no Hoare annotation [2020-07-28 18:58:36,554 WARN L170 areAnnotationChecker]: L866 has no Hoare annotation [2020-07-28 18:58:36,554 WARN L170 areAnnotationChecker]: L866 has no Hoare annotation [2020-07-28 18:58:36,554 WARN L170 areAnnotationChecker]: L538 has no Hoare annotation [2020-07-28 18:58:36,555 WARN L170 areAnnotationChecker]: L538 has no Hoare annotation [2020-07-28 18:58:36,555 WARN L170 areAnnotationChecker]: L513 has no Hoare annotation [2020-07-28 18:58:36,555 WARN L170 areAnnotationChecker]: L672-1 has no Hoare annotation [2020-07-28 18:58:36,555 WARN L170 areAnnotationChecker]: L736-2 has no Hoare annotation [2020-07-28 18:58:36,555 WARN L170 areAnnotationChecker]: L866-1 has no Hoare annotation [2020-07-28 18:58:36,556 WARN L170 areAnnotationChecker]: L866-1 has no Hoare annotation [2020-07-28 18:58:36,556 WARN L170 areAnnotationChecker]: L776 has no Hoare annotation [2020-07-28 18:58:36,556 WARN L170 areAnnotationChecker]: L776 has no Hoare annotation [2020-07-28 18:58:36,556 WARN L170 areAnnotationChecker]: L736-1 has no Hoare annotation [2020-07-28 18:58:36,556 WARN L170 areAnnotationChecker]: L600-1 has no Hoare annotation [2020-07-28 18:58:36,556 WARN L170 areAnnotationChecker]: L699-6 has no Hoare annotation [2020-07-28 18:58:36,557 WARN L170 areAnnotationChecker]: L699-6 has no Hoare annotation [2020-07-28 18:58:36,557 WARN L170 areAnnotationChecker]: L506-3 has no Hoare annotation [2020-07-28 18:58:36,557 WARN L170 areAnnotationChecker]: L506-3 has no Hoare annotation [2020-07-28 18:58:36,557 WARN L170 areAnnotationChecker]: L781 has no Hoare annotation [2020-07-28 18:58:36,557 WARN L170 areAnnotationChecker]: L795 has no Hoare annotation [2020-07-28 18:58:36,558 WARN L170 areAnnotationChecker]: L795 has no Hoare annotation [2020-07-28 18:58:36,558 WARN L170 areAnnotationChecker]: L575-2 has no Hoare annotation [2020-07-28 18:58:36,558 WARN L170 areAnnotationChecker]: L575-2 has no Hoare annotation [2020-07-28 18:58:36,558 WARN L170 areAnnotationChecker]: L538-2 has no Hoare annotation [2020-07-28 18:58:36,558 WARN L170 areAnnotationChecker]: L538-2 has no Hoare annotation [2020-07-28 18:58:36,558 WARN L170 areAnnotationChecker]: L513-2 has no Hoare annotation [2020-07-28 18:58:36,559 WARN L170 areAnnotationChecker]: L658 has no Hoare annotation [2020-07-28 18:58:36,559 WARN L170 areAnnotationChecker]: L658 has no Hoare annotation [2020-07-28 18:58:36,559 WARN L170 areAnnotationChecker]: L609 has no Hoare annotation [2020-07-28 18:58:36,559 WARN L170 areAnnotationChecker]: L776-2 has no Hoare annotation [2020-07-28 18:58:36,559 WARN L170 areAnnotationChecker]: L776-2 has no Hoare annotation [2020-07-28 18:58:36,559 WARN L170 areAnnotationChecker]: L736-5 has no Hoare annotation [2020-07-28 18:58:36,560 WARN L170 areAnnotationChecker]: L658-2 has no Hoare annotation [2020-07-28 18:58:36,560 WARN L170 areAnnotationChecker]: L799 has no Hoare annotation [2020-07-28 18:58:36,560 WARN L170 areAnnotationChecker]: L799 has no Hoare annotation [2020-07-28 18:58:36,560 WARN L170 areAnnotationChecker]: L781-2 has no Hoare annotation [2020-07-28 18:58:36,560 WARN L170 areAnnotationChecker]: L795-4 has no Hoare annotation [2020-07-28 18:58:36,560 WARN L170 areAnnotationChecker]: L795-4 has no Hoare annotation [2020-07-28 18:58:36,561 WARN L170 areAnnotationChecker]: L664 has no Hoare annotation [2020-07-28 18:58:36,561 WARN L170 areAnnotationChecker]: L44 has no Hoare annotation [2020-07-28 18:58:36,561 WARN L170 areAnnotationChecker]: L44 has no Hoare annotation [2020-07-28 18:58:36,561 WARN L170 areAnnotationChecker]: L658-6 has no Hoare annotation [2020-07-28 18:58:36,561 WARN L170 areAnnotationChecker]: L658-6 has no Hoare annotation [2020-07-28 18:58:36,561 WARN L170 areAnnotationChecker]: L609-2 has no Hoare annotation [2020-07-28 18:58:36,562 WARN L170 areAnnotationChecker]: L795-5 has no Hoare annotation [2020-07-28 18:58:36,562 WARN L170 areAnnotationChecker]: L542 has no Hoare annotation [2020-07-28 18:58:36,562 WARN L170 areAnnotationChecker]: L542 has no Hoare annotation [2020-07-28 18:58:36,562 WARN L170 areAnnotationChecker]: L658-8 has no Hoare annotation [2020-07-28 18:58:36,562 WARN L170 areAnnotationChecker]: L799-4 has no Hoare annotation [2020-07-28 18:58:36,562 WARN L170 areAnnotationChecker]: L799-4 has no Hoare annotation [2020-07-28 18:58:36,563 WARN L170 areAnnotationChecker]: L736 has no Hoare annotation [2020-07-28 18:58:36,563 WARN L170 areAnnotationChecker]: L664-2 has no Hoare annotation [2020-07-28 18:58:36,563 WARN L170 areAnnotationChecker]: L44-2 has no Hoare annotation [2020-07-28 18:58:36,563 WARN L170 areAnnotationChecker]: L44-2 has no Hoare annotation [2020-07-28 18:58:36,563 WARN L170 areAnnotationChecker]: L600 has no Hoare annotation [2020-07-28 18:58:36,563 WARN L170 areAnnotationChecker]: L542-2 has no Hoare annotation [2020-07-28 18:58:36,564 WARN L170 areAnnotationChecker]: L542-2 has no Hoare annotation [2020-07-28 18:58:36,564 WARN L170 areAnnotationChecker]: L575 has no Hoare annotation [2020-07-28 18:58:36,564 WARN L170 areAnnotationChecker]: L575 has no Hoare annotation [2020-07-28 18:58:36,564 WARN L170 areAnnotationChecker]: L736-4 has no Hoare annotation [2020-07-28 18:58:36,564 WARN L170 areAnnotationChecker]: L600-2 has no Hoare annotation [2020-07-28 18:58:36,564 WARN L170 areAnnotationChecker]: L575-4 has no Hoare annotation [2020-07-28 18:58:36,565 WARN L170 areAnnotationChecker]: L575-4 has no Hoare annotation [2020-07-28 18:58:36,565 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 18:58:36,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 06:58:36 BoogieIcfgContainer [2020-07-28 18:58:36,568 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 18:58:36,569 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 18:58:36,569 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 18:58:36,569 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 18:58:36,570 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 06:58:20" (3/4) ... [2020-07-28 18:58:36,573 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-07-28 18:58:36,763 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 18:58:36,763 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 18:58:36,766 INFO L168 Benchmark]: Toolchain (without parser) took 18786.01 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 344.5 MB). Free memory was 960.2 MB in the beginning and 978.0 MB in the end (delta: -17.7 MB). Peak memory consumption was 326.7 MB. Max. memory is 11.5 GB. [2020-07-28 18:58:36,767 INFO L168 Benchmark]: CDTParser took 0.34 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 18:58:36,771 INFO L168 Benchmark]: CACSL2BoogieTranslator took 738.23 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 78.1 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -97.4 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. [2020-07-28 18:58:36,772 INFO L168 Benchmark]: Boogie Procedure Inliner took 97.68 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2020-07-28 18:58:36,772 INFO L168 Benchmark]: Boogie Preprocessor took 56.36 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 18:58:36,772 INFO L168 Benchmark]: RCFGBuilder took 1496.08 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 891.7 MB in the end (delta: 153.5 MB). Peak memory consumption was 153.5 MB. Max. memory is 11.5 GB. [2020-07-28 18:58:36,772 INFO L168 Benchmark]: TraceAbstraction took 16194.28 ms. Allocated memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: 266.3 MB). Free memory was 884.8 MB in the beginning and 1.0 GB in the end (delta: -140.2 MB). Peak memory consumption was 126.2 MB. Max. memory is 11.5 GB. [2020-07-28 18:58:36,773 INFO L168 Benchmark]: Witness Printer took 194.64 ms. Allocated memory is still 1.4 GB. Free memory was 1.0 GB in the beginning and 978.0 MB in the end (delta: 47.0 MB). Peak memory consumption was 47.0 MB. Max. memory is 11.5 GB. [2020-07-28 18:58:36,774 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 0.34 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 738.23 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 78.1 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -97.4 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 97.68 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 56.36 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1496.08 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 891.7 MB in the end (delta: 153.5 MB). Peak memory consumption was 153.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 16194.28 ms. Allocated memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: 266.3 MB). Free memory was 884.8 MB in the beginning and 1.0 GB in the end (delta: -140.2 MB). Peak memory consumption was 126.2 MB. Max. memory is 11.5 GB. * Witness Printer took 194.64 ms. Allocated memory is still 1.4 GB. Free memory was 1.0 GB in the beginning and 978.0 MB in the end (delta: 47.0 MB). Peak memory consumption was 47.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L218] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L498] int pumpRunning = 0; [L499] int systemActive = 1; [L693] int waterLevel = 1; [L694] int methaneLevelCritical = 0; [L851] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L924] int retValue_acc ; [L925] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L842] int retValue_acc ; [L845] retValue_acc = 1 [L846] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L931] tmp = valid_product() [L933] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L422] int splverifierCounter ; [L423] int tmp ; [L424] int tmp___0 ; [L425] int tmp___1 ; [L426] int tmp___2 ; [L429] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L431] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L433] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L439] tmp = __VERIFIER_nondet_int() [L441] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L711] COND TRUE waterLevel < 2 [L712] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L449] tmp___0 = __VERIFIER_nondet_int() [L451] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L459] tmp___2 = __VERIFIER_nondet_int() [L461] COND TRUE \read(tmp___2) [L687] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L506] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L513] COND TRUE \read(systemActive) [L535] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L538] COND TRUE ! pumpRunning [L650] int retValue_acc ; [L651] int tmp ; [L652] int tmp___0 ; [L773] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L776] COND FALSE !(waterLevel < 2) [L780] retValue_acc = 0 [L781] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L656] tmp = isHighWaterSensorDry() [L658] COND FALSE !(\read(tmp)) [L661] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L663] retValue_acc = tmp___0 [L664] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L540] tmp = isHighWaterLevel() [L542] COND TRUE \read(tmp) [L569] int tmp ; [L594] int retValue_acc ; [L732] int retValue_acc ; [L735] retValue_acc = methaneLevelCritical [L736] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L598] retValue_acc = isMethaneLevelCritical() [L600] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L573] tmp = isMethaneAlarm() [L575] COND FALSE !(\read(tmp)) [L563] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L788] int tmp ; [L789] int tmp___0 ; [L732] int retValue_acc ; [L735] retValue_acc = methaneLevelCritical [L736] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L793] tmp = isMethaneLevelCritical() [L795] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L431] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L433] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L439] tmp = __VERIFIER_nondet_int() [L441] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L449] tmp___0 = __VERIFIER_nondet_int() [L451] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L723] COND FALSE !(\read(methaneLevelCritical)) [L726] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L459] tmp___2 = __VERIFIER_nondet_int() [L461] COND TRUE \read(tmp___2) [L687] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L506] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L699] COND TRUE waterLevel > 0 [L700] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L513] COND TRUE \read(systemActive) [L535] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L538] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L788] int tmp ; [L789] int tmp___0 ; [L732] int retValue_acc ; [L735] retValue_acc = methaneLevelCritical [L736] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L793] tmp = isMethaneLevelCritical() [L795] COND TRUE \read(tmp) [L605] int retValue_acc ; [L608] retValue_acc = pumpRunning [L609] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L797] tmp___0 = isPumpRunning() [L799] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L44] __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: 15.9s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 11.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 820 SDtfs, 1198 SDslu, 1336 SDs, 0 SdLazy, 175 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s 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: 2.4s AutomataMinimizationTime, 10 MinimizatonAttempts, 805 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 315 NumberOfCodeBlocks, 315 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 256 ConstructedInterpolants, 0 QuantifiedInterpolants, 13204 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...