./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product20.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_spec3_product20.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 cea13255bd81d7ff756db691b6bf5b4173b6edc1 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 19:01:21,786 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 19:01:21,788 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 19:01:21,801 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 19:01:21,801 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 19:01:21,803 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 19:01:21,804 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 19:01:21,806 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 19:01:21,808 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 19:01:21,809 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 19:01:21,810 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 19:01:21,812 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 19:01:21,812 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 19:01:21,813 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 19:01:21,814 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 19:01:21,816 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 19:01:21,817 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 19:01:21,818 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 19:01:21,820 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 19:01:21,822 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 19:01:21,823 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 19:01:21,824 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 19:01:21,826 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 19:01:21,827 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 19:01:21,829 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 19:01:21,830 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 19:01:21,830 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 19:01:21,831 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 19:01:21,831 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 19:01:21,832 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 19:01:21,832 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 19:01:21,833 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 19:01:21,834 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 19:01:21,835 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 19:01:21,836 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 19:01:21,837 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 19:01:21,838 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 19:01:21,838 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 19:01:21,838 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 19:01:21,839 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 19:01:21,840 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 19:01:21,841 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 19:01:21,856 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 19:01:21,856 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 19:01:21,858 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 19:01:21,858 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 19:01:21,861 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 19:01:21,862 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 19:01:21,862 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 19:01:21,862 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 19:01:21,863 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 19:01:21,863 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 19:01:21,863 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 19:01:21,863 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 19:01:21,864 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 19:01:21,864 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 19:01:21,864 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 19:01:21,864 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 19:01:21,865 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 19:01:21,865 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 19:01:21,867 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 19:01:21,868 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 19:01:21,868 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 19:01:21,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 19:01:21,868 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 19:01:21,869 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 19:01:21,869 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 19:01:21,870 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 19:01:21,870 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 19:01:21,871 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 19:01:21,871 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 19:01:21,873 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 -> cea13255bd81d7ff756db691b6bf5b4173b6edc1 [2020-07-28 19:01:22,193 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 19:01:22,206 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 19:01:22,209 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 19:01:22,210 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 19:01:22,211 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 19:01:22,211 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product20.cil.c [2020-07-28 19:01:22,289 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/892ec3c97/da92e50ae2104422885324408023e580/FLAGecbcb8753 [2020-07-28 19:01:22,810 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 19:01:22,810 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product20.cil.c [2020-07-28 19:01:22,823 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/892ec3c97/da92e50ae2104422885324408023e580/FLAGecbcb8753 [2020-07-28 19:01:23,152 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/892ec3c97/da92e50ae2104422885324408023e580 [2020-07-28 19:01:23,156 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 19:01:23,160 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 19:01:23,161 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 19:01:23,161 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 19:01:23,165 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 19:01:23,167 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 07:01:23" (1/1) ... [2020-07-28 19:01:23,169 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d5f70b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:01:23, skipping insertion in model container [2020-07-28 19:01:23,170 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 07:01:23" (1/1) ... [2020-07-28 19:01:23,178 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 19:01:23,243 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 19:01:23,714 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 19:01:23,728 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 19:01:23,829 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 19:01:23,863 INFO L208 MainTranslator]: Completed translation [2020-07-28 19:01:23,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:01:23 WrapperNode [2020-07-28 19:01:23,864 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 19:01:23,865 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 19:01:23,865 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 19:01:23,865 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 19:01:23,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:01:23" (1/1) ... [2020-07-28 19:01:23,900 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:01:23" (1/1) ... [2020-07-28 19:01:23,980 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 19:01:23,981 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 19:01:23,981 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 19:01:23,981 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 19:01:23,990 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:01:23" (1/1) ... [2020-07-28 19:01:23,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:01:23" (1/1) ... [2020-07-28 19:01:23,996 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:01:23" (1/1) ... [2020-07-28 19:01:23,997 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:01:23" (1/1) ... [2020-07-28 19:01:24,017 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:01:23" (1/1) ... [2020-07-28 19:01:24,032 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:01:23" (1/1) ... [2020-07-28 19:01:24,035 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:01:23" (1/1) ... [2020-07-28 19:01:24,039 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 19:01:24,040 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 19:01:24,040 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 19:01:24,040 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 19:01:24,041 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:01:23" (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 19:01:24,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 19:01:24,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-28 19:01:24,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 19:01:24,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 19:01:25,481 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 19:01:25,481 INFO L295 CfgBuilder]: Removed 108 assume(true) statements. [2020-07-28 19:01:25,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 07:01:25 BoogieIcfgContainer [2020-07-28 19:01:25,486 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 19:01:25,488 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 19:01:25,488 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 19:01:25,491 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 19:01:25,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 07:01:23" (1/3) ... [2020-07-28 19:01:25,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aa0a17f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 07:01:25, skipping insertion in model container [2020-07-28 19:01:25,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:01:23" (2/3) ... [2020-07-28 19:01:25,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aa0a17f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 07:01:25, skipping insertion in model container [2020-07-28 19:01:25,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 07:01:25" (3/3) ... [2020-07-28 19:01:25,495 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product20.cil.c [2020-07-28 19:01:25,506 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 19:01:25,514 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-07-28 19:01:25,528 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-07-28 19:01:25,552 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 19:01:25,552 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 19:01:25,552 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 19:01:25,552 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 19:01:25,555 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 19:01:25,555 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 19:01:25,556 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 19:01:25,556 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 19:01:25,574 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states. [2020-07-28 19:01:25,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-07-28 19:01:25,582 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:01:25,583 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 19:01:25,584 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:01:25,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:01:25,591 INFO L82 PathProgramCache]: Analyzing trace with hash -93315333, now seen corresponding path program 1 times [2020-07-28 19:01:25,600 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:01:25,601 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092926409] [2020-07-28 19:01:25,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:01:25,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:01:25,950 INFO L280 TraceCheckUtils]: 0: Hoare triple {86#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(30);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(9);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(21);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(25);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.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~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(77, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(101, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(116, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(104, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string68.base, #t~string68.offset, 1);call write~init~int(82, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(73, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(84, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 4 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(75, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {86#true} is VALID [2020-07-28 19:01:25,951 INFO L280 TraceCheckUtils]: 1: Hoare triple {86#true} havoc main_#res;havoc main_#t~ret36, main_~retValue_acc~5, main_~tmp~3;havoc main_~retValue_acc~5;havoc main_~tmp~3; {86#true} is VALID [2020-07-28 19:01:25,951 INFO L280 TraceCheckUtils]: 2: Hoare triple {86#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; {86#true} is VALID [2020-07-28 19:01:25,952 INFO L280 TraceCheckUtils]: 3: Hoare triple {86#true} main_#t~ret36 := valid_product_#res;assume -2147483648 <= main_#t~ret36 && main_#t~ret36 <= 2147483647;main_~tmp~3 := main_#t~ret36;havoc main_#t~ret36; {86#true} is VALID [2020-07-28 19:01:25,952 INFO L280 TraceCheckUtils]: 4: Hoare triple {86#true} assume 0 != main_~tmp~3; {86#true} is VALID [2020-07-28 19:01:25,954 INFO L280 TraceCheckUtils]: 5: Hoare triple {86#true} havoc test_#t~nondet59, test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {86#true} is VALID [2020-07-28 19:01:25,958 INFO L280 TraceCheckUtils]: 6: Hoare triple {86#true} assume false; {87#false} is VALID [2020-07-28 19:01:25,959 INFO L280 TraceCheckUtils]: 7: Hoare triple {87#false} havoc cleanup_~i~0, cleanup_~__cil_tmp2~0;havoc cleanup_~i~0;havoc cleanup_~__cil_tmp2~0; {87#false} is VALID [2020-07-28 19:01:25,959 INFO L280 TraceCheckUtils]: 8: Hoare triple {87#false} assume !(0 != ~pumpRunning~0); {87#false} is VALID [2020-07-28 19:01:25,960 INFO L280 TraceCheckUtils]: 9: Hoare triple {87#false} assume !(0 != ~systemActive~0); {87#false} is VALID [2020-07-28 19:01:25,960 INFO L280 TraceCheckUtils]: 10: Hoare triple {87#false} havoc __utac_acc__Specification3_spec__1_#t~ret37, __utac_acc__Specification3_spec__1_#t~ret38, __utac_acc__Specification3_spec__1_#t~ret39, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; {87#false} is VALID [2020-07-28 19:01:25,960 INFO L280 TraceCheckUtils]: 11: Hoare triple {87#false} __utac_acc__Specification3_spec__1_#t~ret37 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification3_spec__1_#t~ret37 && __utac_acc__Specification3_spec__1_#t~ret37 <= 2147483647;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret37;havoc __utac_acc__Specification3_spec__1_#t~ret37; {87#false} is VALID [2020-07-28 19:01:25,961 INFO L280 TraceCheckUtils]: 12: Hoare triple {87#false} assume !(0 != __utac_acc__Specification3_spec__1_~tmp~4);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; {87#false} is VALID [2020-07-28 19:01:25,963 INFO L280 TraceCheckUtils]: 13: Hoare triple {87#false} __utac_acc__Specification3_spec__1_#t~ret38 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification3_spec__1_#t~ret38 && __utac_acc__Specification3_spec__1_#t~ret38 <= 2147483647;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret38;havoc __utac_acc__Specification3_spec__1_#t~ret38; {87#false} is VALID [2020-07-28 19:01:25,964 INFO L280 TraceCheckUtils]: 14: Hoare triple {87#false} assume 2 == __utac_acc__Specification3_spec__1_~tmp___0~0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; {87#false} is VALID [2020-07-28 19:01:25,964 INFO L280 TraceCheckUtils]: 15: Hoare triple {87#false} __utac_acc__Specification3_spec__1_#t~ret39 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification3_spec__1_#t~ret39 && __utac_acc__Specification3_spec__1_#t~ret39 <= 2147483647;__utac_acc__Specification3_spec__1_~tmp___1~0 := __utac_acc__Specification3_spec__1_#t~ret39;havoc __utac_acc__Specification3_spec__1_#t~ret39; {87#false} is VALID [2020-07-28 19:01:25,965 INFO L280 TraceCheckUtils]: 16: Hoare triple {87#false} assume !(0 != __utac_acc__Specification3_spec__1_~tmp___1~0); {87#false} is VALID [2020-07-28 19:01:25,965 INFO L280 TraceCheckUtils]: 17: Hoare triple {87#false} assume !false; {87#false} is VALID [2020-07-28 19:01:25,972 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 19:01:25,973 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092926409] [2020-07-28 19:01:25,975 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 19:01:25,975 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 19:01:25,977 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435800339] [2020-07-28 19:01:25,985 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-07-28 19:01:25,987 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 19:01:25,991 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 19:01:26,055 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:01:26,055 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 19:01:26,055 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 19:01:26,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 19:01:26,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 19:01:26,068 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 2 states. [2020-07-28 19:01:26,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:01:26,347 INFO L93 Difference]: Finished difference Result 160 states and 239 transitions. [2020-07-28 19:01:26,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 19:01:26,347 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-07-28 19:01:26,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 19:01:26,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 19:01:26,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 239 transitions. [2020-07-28 19:01:26,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 19:01:26,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 239 transitions. [2020-07-28 19:01:26,370 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 239 transitions. [2020-07-28 19:01:26,696 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 239 edges. 239 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:01:26,711 INFO L225 Difference]: With dead ends: 160 [2020-07-28 19:01:26,711 INFO L226 Difference]: Without dead ends: 79 [2020-07-28 19:01:26,715 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 19:01:26,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-07-28 19:01:26,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2020-07-28 19:01:26,769 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 19:01:26,770 INFO L82 GeneralOperation]: Start isEquivalent. First operand 79 states. Second operand 79 states. [2020-07-28 19:01:26,771 INFO L74 IsIncluded]: Start isIncluded. First operand 79 states. Second operand 79 states. [2020-07-28 19:01:26,771 INFO L87 Difference]: Start difference. First operand 79 states. Second operand 79 states. [2020-07-28 19:01:26,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:01:26,778 INFO L93 Difference]: Finished difference Result 79 states and 111 transitions. [2020-07-28 19:01:26,778 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 111 transitions. [2020-07-28 19:01:26,779 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:01:26,779 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:01:26,780 INFO L74 IsIncluded]: Start isIncluded. First operand 79 states. Second operand 79 states. [2020-07-28 19:01:26,780 INFO L87 Difference]: Start difference. First operand 79 states. Second operand 79 states. [2020-07-28 19:01:26,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:01:26,787 INFO L93 Difference]: Finished difference Result 79 states and 111 transitions. [2020-07-28 19:01:26,787 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 111 transitions. [2020-07-28 19:01:26,788 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:01:26,788 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:01:26,788 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 19:01:26,788 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 19:01:26,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-07-28 19:01:26,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 111 transitions. [2020-07-28 19:01:26,796 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 111 transitions. Word has length 18 [2020-07-28 19:01:26,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 19:01:26,796 INFO L479 AbstractCegarLoop]: Abstraction has 79 states and 111 transitions. [2020-07-28 19:01:26,796 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 19:01:26,796 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 111 transitions. [2020-07-28 19:01:26,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-07-28 19:01:26,798 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:01:26,798 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 19:01:26,798 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 19:01:26,799 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:01:26,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:01:26,799 INFO L82 PathProgramCache]: Analyzing trace with hash -1004346086, now seen corresponding path program 1 times [2020-07-28 19:01:26,799 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:01:26,800 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327367805] [2020-07-28 19:01:26,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:01:26,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:01:26,969 INFO L280 TraceCheckUtils]: 0: Hoare triple {587#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(30);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(9);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(21);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(25);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.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~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(77, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(101, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(116, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(104, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string68.base, #t~string68.offset, 1);call write~init~int(82, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(73, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(84, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 4 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(75, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {587#true} is VALID [2020-07-28 19:01:26,970 INFO L280 TraceCheckUtils]: 1: Hoare triple {587#true} havoc main_#res;havoc main_#t~ret36, main_~retValue_acc~5, main_~tmp~3;havoc main_~retValue_acc~5;havoc main_~tmp~3; {587#true} is VALID [2020-07-28 19:01:26,970 INFO L280 TraceCheckUtils]: 2: Hoare triple {587#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; {587#true} is VALID [2020-07-28 19:01:26,970 INFO L280 TraceCheckUtils]: 3: Hoare triple {587#true} main_#t~ret36 := valid_product_#res;assume -2147483648 <= main_#t~ret36 && main_#t~ret36 <= 2147483647;main_~tmp~3 := main_#t~ret36;havoc main_#t~ret36; {587#true} is VALID [2020-07-28 19:01:26,971 INFO L280 TraceCheckUtils]: 4: Hoare triple {587#true} assume 0 != main_~tmp~3; {587#true} is VALID [2020-07-28 19:01:26,977 INFO L280 TraceCheckUtils]: 5: Hoare triple {587#true} havoc test_#t~nondet59, test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {589#(= 0 ULTIMATE.start_test_~splverifierCounter~0)} is VALID [2020-07-28 19:01:26,978 INFO L280 TraceCheckUtils]: 6: Hoare triple {589#(= 0 ULTIMATE.start_test_~splverifierCounter~0)} assume !false; {589#(= 0 ULTIMATE.start_test_~splverifierCounter~0)} is VALID [2020-07-28 19:01:26,979 INFO L280 TraceCheckUtils]: 7: Hoare triple {589#(= 0 ULTIMATE.start_test_~splverifierCounter~0)} assume !(test_~splverifierCounter~0 < 4); {588#false} is VALID [2020-07-28 19:01:26,979 INFO L280 TraceCheckUtils]: 8: Hoare triple {588#false} havoc cleanup_~i~0, cleanup_~__cil_tmp2~0;havoc cleanup_~i~0;havoc cleanup_~__cil_tmp2~0; {588#false} is VALID [2020-07-28 19:01:26,979 INFO L280 TraceCheckUtils]: 9: Hoare triple {588#false} assume !(0 != ~pumpRunning~0); {588#false} is VALID [2020-07-28 19:01:26,980 INFO L280 TraceCheckUtils]: 10: Hoare triple {588#false} assume !(0 != ~systemActive~0); {588#false} is VALID [2020-07-28 19:01:26,980 INFO L280 TraceCheckUtils]: 11: Hoare triple {588#false} havoc __utac_acc__Specification3_spec__1_#t~ret37, __utac_acc__Specification3_spec__1_#t~ret38, __utac_acc__Specification3_spec__1_#t~ret39, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; {588#false} is VALID [2020-07-28 19:01:26,980 INFO L280 TraceCheckUtils]: 12: Hoare triple {588#false} __utac_acc__Specification3_spec__1_#t~ret37 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification3_spec__1_#t~ret37 && __utac_acc__Specification3_spec__1_#t~ret37 <= 2147483647;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret37;havoc __utac_acc__Specification3_spec__1_#t~ret37; {588#false} is VALID [2020-07-28 19:01:26,981 INFO L280 TraceCheckUtils]: 13: Hoare triple {588#false} assume !(0 != __utac_acc__Specification3_spec__1_~tmp~4);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; {588#false} is VALID [2020-07-28 19:01:26,981 INFO L280 TraceCheckUtils]: 14: Hoare triple {588#false} __utac_acc__Specification3_spec__1_#t~ret38 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification3_spec__1_#t~ret38 && __utac_acc__Specification3_spec__1_#t~ret38 <= 2147483647;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret38;havoc __utac_acc__Specification3_spec__1_#t~ret38; {588#false} is VALID [2020-07-28 19:01:26,981 INFO L280 TraceCheckUtils]: 15: Hoare triple {588#false} assume 2 == __utac_acc__Specification3_spec__1_~tmp___0~0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; {588#false} is VALID [2020-07-28 19:01:26,982 INFO L280 TraceCheckUtils]: 16: Hoare triple {588#false} __utac_acc__Specification3_spec__1_#t~ret39 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification3_spec__1_#t~ret39 && __utac_acc__Specification3_spec__1_#t~ret39 <= 2147483647;__utac_acc__Specification3_spec__1_~tmp___1~0 := __utac_acc__Specification3_spec__1_#t~ret39;havoc __utac_acc__Specification3_spec__1_#t~ret39; {588#false} is VALID [2020-07-28 19:01:26,982 INFO L280 TraceCheckUtils]: 17: Hoare triple {588#false} assume !(0 != __utac_acc__Specification3_spec__1_~tmp___1~0); {588#false} is VALID [2020-07-28 19:01:26,982 INFO L280 TraceCheckUtils]: 18: Hoare triple {588#false} assume !false; {588#false} is VALID [2020-07-28 19:01:26,983 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 19:01:26,984 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327367805] [2020-07-28 19:01:26,984 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 19:01:26,984 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 19:01:26,985 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409089269] [2020-07-28 19:01:26,986 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-07-28 19:01:26,987 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 19:01:26,987 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 19:01:27,024 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 19 edges. 19 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:01:27,025 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 19:01:27,025 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 19:01:27,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 19:01:27,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 19:01:27,026 INFO L87 Difference]: Start difference. First operand 79 states and 111 transitions. Second operand 3 states. [2020-07-28 19:01:27,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:01:27,245 INFO L93 Difference]: Finished difference Result 79 states and 111 transitions. [2020-07-28 19:01:27,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 19:01:27,246 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-07-28 19:01:27,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 19:01:27,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 19:01:27,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 111 transitions. [2020-07-28 19:01:27,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 19:01:27,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 111 transitions. [2020-07-28 19:01:27,252 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 111 transitions. [2020-07-28 19:01:27,412 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 111 edges. 111 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:01:27,414 INFO L225 Difference]: With dead ends: 79 [2020-07-28 19:01:27,414 INFO L226 Difference]: Without dead ends: 37 [2020-07-28 19:01:27,416 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 19:01:27,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-07-28 19:01:27,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-07-28 19:01:27,453 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 19:01:27,453 INFO L82 GeneralOperation]: Start isEquivalent. First operand 37 states. Second operand 37 states. [2020-07-28 19:01:27,453 INFO L74 IsIncluded]: Start isIncluded. First operand 37 states. Second operand 37 states. [2020-07-28 19:01:27,453 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 37 states. [2020-07-28 19:01:27,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:01:27,456 INFO L93 Difference]: Finished difference Result 37 states and 52 transitions. [2020-07-28 19:01:27,456 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 52 transitions. [2020-07-28 19:01:27,457 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:01:27,457 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:01:27,458 INFO L74 IsIncluded]: Start isIncluded. First operand 37 states. Second operand 37 states. [2020-07-28 19:01:27,458 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 37 states. [2020-07-28 19:01:27,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:01:27,461 INFO L93 Difference]: Finished difference Result 37 states and 52 transitions. [2020-07-28 19:01:27,461 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 52 transitions. [2020-07-28 19:01:27,462 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:01:27,463 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:01:27,463 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 19:01:27,463 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 19:01:27,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-07-28 19:01:27,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 52 transitions. [2020-07-28 19:01:27,466 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 52 transitions. Word has length 19 [2020-07-28 19:01:27,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 19:01:27,466 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 52 transitions. [2020-07-28 19:01:27,467 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 19:01:27,467 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 52 transitions. [2020-07-28 19:01:27,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-07-28 19:01:27,469 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:01:27,469 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] [2020-07-28 19:01:27,470 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 19:01:27,472 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:01:27,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:01:27,472 INFO L82 PathProgramCache]: Analyzing trace with hash 2100491951, now seen corresponding path program 1 times [2020-07-28 19:01:27,473 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:01:27,473 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978816539] [2020-07-28 19:01:27,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:01:27,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:01:27,637 INFO L280 TraceCheckUtils]: 0: Hoare triple {830#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(30);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(9);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(21);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(25);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.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~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(77, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(101, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(116, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(104, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string68.base, #t~string68.offset, 1);call write~init~int(82, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(73, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(84, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 4 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(75, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {830#true} is VALID [2020-07-28 19:01:27,637 INFO L280 TraceCheckUtils]: 1: Hoare triple {830#true} havoc main_#res;havoc main_#t~ret36, main_~retValue_acc~5, main_~tmp~3;havoc main_~retValue_acc~5;havoc main_~tmp~3; {830#true} is VALID [2020-07-28 19:01:27,638 INFO L280 TraceCheckUtils]: 2: Hoare triple {830#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; {830#true} is VALID [2020-07-28 19:01:27,638 INFO L280 TraceCheckUtils]: 3: Hoare triple {830#true} main_#t~ret36 := valid_product_#res;assume -2147483648 <= main_#t~ret36 && main_#t~ret36 <= 2147483647;main_~tmp~3 := main_#t~ret36;havoc main_#t~ret36; {830#true} is VALID [2020-07-28 19:01:27,639 INFO L280 TraceCheckUtils]: 4: Hoare triple {830#true} assume 0 != main_~tmp~3; {830#true} is VALID [2020-07-28 19:01:27,640 INFO L280 TraceCheckUtils]: 5: Hoare triple {830#true} havoc test_#t~nondet59, test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {830#true} is VALID [2020-07-28 19:01:27,640 INFO L280 TraceCheckUtils]: 6: Hoare triple {830#true} assume !false; {830#true} is VALID [2020-07-28 19:01:27,641 INFO L280 TraceCheckUtils]: 7: Hoare triple {830#true} assume test_~splverifierCounter~0 < 4; {830#true} is VALID [2020-07-28 19:01:27,641 INFO L280 TraceCheckUtils]: 8: Hoare triple {830#true} assume -2147483648 <= test_#t~nondet59 && test_#t~nondet59 <= 2147483647;test_~tmp~7 := test_#t~nondet59;havoc test_#t~nondet59; {830#true} is VALID [2020-07-28 19:01:27,641 INFO L280 TraceCheckUtils]: 9: Hoare triple {830#true} assume !(0 != test_~tmp~7); {830#true} is VALID [2020-07-28 19:01:27,641 INFO L280 TraceCheckUtils]: 10: Hoare triple {830#true} assume -2147483648 <= test_#t~nondet60 && test_#t~nondet60 <= 2147483647;test_~tmp___0~2 := test_#t~nondet60;havoc test_#t~nondet60; {830#true} is VALID [2020-07-28 19:01:27,642 INFO L280 TraceCheckUtils]: 11: Hoare triple {830#true} assume !(0 != test_~tmp___0~2); {830#true} is VALID [2020-07-28 19:01:27,642 INFO L280 TraceCheckUtils]: 12: Hoare triple {830#true} assume -2147483648 <= test_#t~nondet61 && test_#t~nondet61 <= 2147483647;test_~tmp___2~0 := test_#t~nondet61;havoc test_#t~nondet61; {830#true} is VALID [2020-07-28 19:01:27,643 INFO L280 TraceCheckUtils]: 13: Hoare triple {830#true} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {832#(= 1 ~systemActive~0)} is VALID [2020-07-28 19:01:27,644 INFO L280 TraceCheckUtils]: 14: Hoare triple {832#(= 1 ~systemActive~0)} assume !(0 != ~pumpRunning~0); {832#(= 1 ~systemActive~0)} is VALID [2020-07-28 19:01:27,649 INFO L280 TraceCheckUtils]: 15: Hoare triple {832#(= 1 ~systemActive~0)} assume !(0 != ~systemActive~0); {831#false} is VALID [2020-07-28 19:01:27,649 INFO L280 TraceCheckUtils]: 16: Hoare triple {831#false} havoc __utac_acc__Specification3_spec__1_#t~ret37, __utac_acc__Specification3_spec__1_#t~ret38, __utac_acc__Specification3_spec__1_#t~ret39, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; {831#false} is VALID [2020-07-28 19:01:27,650 INFO L280 TraceCheckUtils]: 17: Hoare triple {831#false} __utac_acc__Specification3_spec__1_#t~ret37 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification3_spec__1_#t~ret37 && __utac_acc__Specification3_spec__1_#t~ret37 <= 2147483647;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret37;havoc __utac_acc__Specification3_spec__1_#t~ret37; {831#false} is VALID [2020-07-28 19:01:27,650 INFO L280 TraceCheckUtils]: 18: Hoare triple {831#false} assume !(0 != __utac_acc__Specification3_spec__1_~tmp~4);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; {831#false} is VALID [2020-07-28 19:01:27,650 INFO L280 TraceCheckUtils]: 19: Hoare triple {831#false} __utac_acc__Specification3_spec__1_#t~ret38 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification3_spec__1_#t~ret38 && __utac_acc__Specification3_spec__1_#t~ret38 <= 2147483647;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret38;havoc __utac_acc__Specification3_spec__1_#t~ret38; {831#false} is VALID [2020-07-28 19:01:27,651 INFO L280 TraceCheckUtils]: 20: Hoare triple {831#false} assume 2 == __utac_acc__Specification3_spec__1_~tmp___0~0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; {831#false} is VALID [2020-07-28 19:01:27,651 INFO L280 TraceCheckUtils]: 21: Hoare triple {831#false} __utac_acc__Specification3_spec__1_#t~ret39 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification3_spec__1_#t~ret39 && __utac_acc__Specification3_spec__1_#t~ret39 <= 2147483647;__utac_acc__Specification3_spec__1_~tmp___1~0 := __utac_acc__Specification3_spec__1_#t~ret39;havoc __utac_acc__Specification3_spec__1_#t~ret39; {831#false} is VALID [2020-07-28 19:01:27,652 INFO L280 TraceCheckUtils]: 22: Hoare triple {831#false} assume !(0 != __utac_acc__Specification3_spec__1_~tmp___1~0); {831#false} is VALID [2020-07-28 19:01:27,652 INFO L280 TraceCheckUtils]: 23: Hoare triple {831#false} assume !false; {831#false} is VALID [2020-07-28 19:01:27,653 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 19:01:27,653 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978816539] [2020-07-28 19:01:27,653 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 19:01:27,654 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 19:01:27,654 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146757341] [2020-07-28 19:01:27,655 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-07-28 19:01:27,655 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 19:01:27,657 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 19:01:27,690 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:01:27,691 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 19:01:27,691 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 19:01:27,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 19:01:27,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 19:01:27,692 INFO L87 Difference]: Start difference. First operand 37 states and 52 transitions. Second operand 3 states. [2020-07-28 19:01:27,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:01:27,960 INFO L93 Difference]: Finished difference Result 99 states and 144 transitions. [2020-07-28 19:01:27,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 19:01:27,960 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-07-28 19:01:27,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 19:01:27,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 19:01:27,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 144 transitions. [2020-07-28 19:01:27,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 19:01:27,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 144 transitions. [2020-07-28 19:01:27,971 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 144 transitions. [2020-07-28 19:01:28,134 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 144 edges. 144 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:01:28,138 INFO L225 Difference]: With dead ends: 99 [2020-07-28 19:01:28,139 INFO L226 Difference]: Without dead ends: 68 [2020-07-28 19:01:28,139 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 19:01:28,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-07-28 19:01:28,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 64. [2020-07-28 19:01:28,184 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 19:01:28,184 INFO L82 GeneralOperation]: Start isEquivalent. First operand 68 states. Second operand 64 states. [2020-07-28 19:01:28,184 INFO L74 IsIncluded]: Start isIncluded. First operand 68 states. Second operand 64 states. [2020-07-28 19:01:28,185 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 64 states. [2020-07-28 19:01:28,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:01:28,187 INFO L93 Difference]: Finished difference Result 68 states and 97 transitions. [2020-07-28 19:01:28,188 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 97 transitions. [2020-07-28 19:01:28,195 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:01:28,196 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:01:28,196 INFO L74 IsIncluded]: Start isIncluded. First operand 64 states. Second operand 68 states. [2020-07-28 19:01:28,196 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 68 states. [2020-07-28 19:01:28,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:01:28,200 INFO L93 Difference]: Finished difference Result 68 states and 97 transitions. [2020-07-28 19:01:28,200 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 97 transitions. [2020-07-28 19:01:28,201 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:01:28,201 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:01:28,201 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 19:01:28,202 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 19:01:28,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-07-28 19:01:28,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 93 transitions. [2020-07-28 19:01:28,205 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 93 transitions. Word has length 24 [2020-07-28 19:01:28,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 19:01:28,205 INFO L479 AbstractCegarLoop]: Abstraction has 64 states and 93 transitions. [2020-07-28 19:01:28,205 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 19:01:28,206 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 93 transitions. [2020-07-28 19:01:28,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-28 19:01:28,207 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:01:28,207 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 19:01:28,207 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-28 19:01:28,207 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:01:28,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:01:28,208 INFO L82 PathProgramCache]: Analyzing trace with hash -1826320204, now seen corresponding path program 1 times [2020-07-28 19:01:28,208 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:01:28,209 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356892766] [2020-07-28 19:01:28,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:01:28,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:01:28,323 INFO L280 TraceCheckUtils]: 0: Hoare triple {1199#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(30);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(9);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(21);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(25);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.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~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(77, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(101, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(116, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(104, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string68.base, #t~string68.offset, 1);call write~init~int(82, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(73, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(84, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 4 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(75, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {1201#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:01:28,324 INFO L280 TraceCheckUtils]: 1: Hoare triple {1201#(= 1 ~waterLevel~0)} havoc main_#res;havoc main_#t~ret36, main_~retValue_acc~5, main_~tmp~3;havoc main_~retValue_acc~5;havoc main_~tmp~3; {1201#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:01:28,325 INFO L280 TraceCheckUtils]: 2: Hoare triple {1201#(= 1 ~waterLevel~0)} havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; {1201#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:01:28,326 INFO L280 TraceCheckUtils]: 3: Hoare triple {1201#(= 1 ~waterLevel~0)} main_#t~ret36 := valid_product_#res;assume -2147483648 <= main_#t~ret36 && main_#t~ret36 <= 2147483647;main_~tmp~3 := main_#t~ret36;havoc main_#t~ret36; {1201#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:01:28,326 INFO L280 TraceCheckUtils]: 4: Hoare triple {1201#(= 1 ~waterLevel~0)} assume 0 != main_~tmp~3; {1201#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:01:28,327 INFO L280 TraceCheckUtils]: 5: Hoare triple {1201#(= 1 ~waterLevel~0)} havoc test_#t~nondet59, test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {1201#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:01:28,327 INFO L280 TraceCheckUtils]: 6: Hoare triple {1201#(= 1 ~waterLevel~0)} assume !false; {1201#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:01:28,328 INFO L280 TraceCheckUtils]: 7: Hoare triple {1201#(= 1 ~waterLevel~0)} assume test_~splverifierCounter~0 < 4; {1201#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:01:28,329 INFO L280 TraceCheckUtils]: 8: Hoare triple {1201#(= 1 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet59 && test_#t~nondet59 <= 2147483647;test_~tmp~7 := test_#t~nondet59;havoc test_#t~nondet59; {1201#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:01:28,329 INFO L280 TraceCheckUtils]: 9: Hoare triple {1201#(= 1 ~waterLevel~0)} assume !(0 != test_~tmp~7); {1201#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:01:28,330 INFO L280 TraceCheckUtils]: 10: Hoare triple {1201#(= 1 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet60 && test_#t~nondet60 <= 2147483647;test_~tmp___0~2 := test_#t~nondet60;havoc test_#t~nondet60; {1201#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:01:28,330 INFO L280 TraceCheckUtils]: 11: Hoare triple {1201#(= 1 ~waterLevel~0)} assume !(0 != test_~tmp___0~2); {1201#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:01:28,331 INFO L280 TraceCheckUtils]: 12: Hoare triple {1201#(= 1 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet61 && test_#t~nondet61 <= 2147483647;test_~tmp___2~0 := test_#t~nondet61;havoc test_#t~nondet61; {1201#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:01:28,332 INFO L280 TraceCheckUtils]: 13: Hoare triple {1201#(= 1 ~waterLevel~0)} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {1201#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:01:28,332 INFO L280 TraceCheckUtils]: 14: Hoare triple {1201#(= 1 ~waterLevel~0)} assume !(0 != ~pumpRunning~0); {1201#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:01:28,333 INFO L280 TraceCheckUtils]: 15: Hoare triple {1201#(= 1 ~waterLevel~0)} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret40, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; {1201#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:01:28,333 INFO L280 TraceCheckUtils]: 16: Hoare triple {1201#(= 1 ~waterLevel~0)} assume !(0 != ~pumpRunning~0); {1201#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:01:28,334 INFO L280 TraceCheckUtils]: 17: Hoare triple {1201#(= 1 ~waterLevel~0)} havoc __utac_acc__Specification3_spec__1_#t~ret37, __utac_acc__Specification3_spec__1_#t~ret38, __utac_acc__Specification3_spec__1_#t~ret39, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; {1201#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:01:28,335 INFO L280 TraceCheckUtils]: 18: Hoare triple {1201#(= 1 ~waterLevel~0)} __utac_acc__Specification3_spec__1_#t~ret37 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification3_spec__1_#t~ret37 && __utac_acc__Specification3_spec__1_#t~ret37 <= 2147483647;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret37;havoc __utac_acc__Specification3_spec__1_#t~ret37; {1201#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:01:28,336 INFO L280 TraceCheckUtils]: 19: Hoare triple {1201#(= 1 ~waterLevel~0)} assume !(0 != __utac_acc__Specification3_spec__1_~tmp~4);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; {1202#(= 1 |ULTIMATE.start_getWaterLevel_#res|)} is VALID [2020-07-28 19:01:28,337 INFO L280 TraceCheckUtils]: 20: Hoare triple {1202#(= 1 |ULTIMATE.start_getWaterLevel_#res|)} __utac_acc__Specification3_spec__1_#t~ret38 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification3_spec__1_#t~ret38 && __utac_acc__Specification3_spec__1_#t~ret38 <= 2147483647;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret38;havoc __utac_acc__Specification3_spec__1_#t~ret38; {1203#(= 1 ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp___0~0)} is VALID [2020-07-28 19:01:28,337 INFO L280 TraceCheckUtils]: 21: Hoare triple {1203#(= 1 ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp___0~0)} assume 2 == __utac_acc__Specification3_spec__1_~tmp___0~0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; {1200#false} is VALID [2020-07-28 19:01:28,338 INFO L280 TraceCheckUtils]: 22: Hoare triple {1200#false} __utac_acc__Specification3_spec__1_#t~ret39 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification3_spec__1_#t~ret39 && __utac_acc__Specification3_spec__1_#t~ret39 <= 2147483647;__utac_acc__Specification3_spec__1_~tmp___1~0 := __utac_acc__Specification3_spec__1_#t~ret39;havoc __utac_acc__Specification3_spec__1_#t~ret39; {1200#false} is VALID [2020-07-28 19:01:28,338 INFO L280 TraceCheckUtils]: 23: Hoare triple {1200#false} assume !(0 != __utac_acc__Specification3_spec__1_~tmp___1~0); {1200#false} is VALID [2020-07-28 19:01:28,338 INFO L280 TraceCheckUtils]: 24: Hoare triple {1200#false} assume !false; {1200#false} is VALID [2020-07-28 19:01:28,340 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 19:01:28,340 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356892766] [2020-07-28 19:01:28,341 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 19:01:28,341 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 19:01:28,341 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585047685] [2020-07-28 19:01:28,341 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-07-28 19:01:28,342 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 19:01:28,342 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 19:01:28,388 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 19:01:28,388 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 19:01:28,389 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 19:01:28,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 19:01:28,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-28 19:01:28,389 INFO L87 Difference]: Start difference. First operand 64 states and 93 transitions. Second operand 5 states. [2020-07-28 19:01:29,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:01:29,160 INFO L93 Difference]: Finished difference Result 348 states and 530 transitions. [2020-07-28 19:01:29,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-28 19:01:29,160 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-07-28 19:01:29,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 19:01:29,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 19:01:29,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 283 transitions. [2020-07-28 19:01:29,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 19:01:29,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 283 transitions. [2020-07-28 19:01:29,169 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 283 transitions. [2020-07-28 19:01:29,513 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 283 edges. 283 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:01:29,528 INFO L225 Difference]: With dead ends: 348 [2020-07-28 19:01:29,529 INFO L226 Difference]: Without dead ends: 290 [2020-07-28 19:01:29,531 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 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 19:01:29,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2020-07-28 19:01:29,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 116. [2020-07-28 19:01:29,672 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 19:01:29,673 INFO L82 GeneralOperation]: Start isEquivalent. First operand 290 states. Second operand 116 states. [2020-07-28 19:01:29,673 INFO L74 IsIncluded]: Start isIncluded. First operand 290 states. Second operand 116 states. [2020-07-28 19:01:29,673 INFO L87 Difference]: Start difference. First operand 290 states. Second operand 116 states. [2020-07-28 19:01:29,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:01:29,686 INFO L93 Difference]: Finished difference Result 290 states and 429 transitions. [2020-07-28 19:01:29,686 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 429 transitions. [2020-07-28 19:01:29,693 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:01:29,693 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:01:29,693 INFO L74 IsIncluded]: Start isIncluded. First operand 116 states. Second operand 290 states. [2020-07-28 19:01:29,693 INFO L87 Difference]: Start difference. First operand 116 states. Second operand 290 states. [2020-07-28 19:01:29,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:01:29,707 INFO L93 Difference]: Finished difference Result 290 states and 429 transitions. [2020-07-28 19:01:29,707 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 429 transitions. [2020-07-28 19:01:29,708 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:01:29,708 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:01:29,708 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 19:01:29,708 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 19:01:29,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-07-28 19:01:29,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 167 transitions. [2020-07-28 19:01:29,713 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 167 transitions. Word has length 25 [2020-07-28 19:01:29,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 19:01:29,713 INFO L479 AbstractCegarLoop]: Abstraction has 116 states and 167 transitions. [2020-07-28 19:01:29,714 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 19:01:29,714 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 167 transitions. [2020-07-28 19:01:29,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-28 19:01:29,715 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:01:29,719 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 19:01:29,719 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-28 19:01:29,719 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:01:29,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:01:29,720 INFO L82 PathProgramCache]: Analyzing trace with hash 509338102, now seen corresponding path program 1 times [2020-07-28 19:01:29,720 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:01:29,720 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104579023] [2020-07-28 19:01:29,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:01:29,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 19:01:29,805 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 19:01:29,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 19:01:29,873 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 19:01:29,923 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-28 19:01:29,923 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-28 19:01:29,924 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-28 19:01:30,069 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 19:01:30,069 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-28 19:01:30,069 WARN L170 areAnnotationChecker]: L65 has no Hoare annotation [2020-07-28 19:01:30,070 WARN L170 areAnnotationChecker]: L73 has no Hoare annotation [2020-07-28 19:01:30,070 WARN L170 areAnnotationChecker]: L531 has no Hoare annotation [2020-07-28 19:01:30,070 WARN L170 areAnnotationChecker]: L531 has no Hoare annotation [2020-07-28 19:01:30,070 WARN L170 areAnnotationChecker]: L507 has no Hoare annotation [2020-07-28 19:01:30,070 WARN L170 areAnnotationChecker]: L531-1 has no Hoare annotation [2020-07-28 19:01:30,071 WARN L170 areAnnotationChecker]: L564-1 has no Hoare annotation [2020-07-28 19:01:30,071 WARN L170 areAnnotationChecker]: L564-1 has no Hoare annotation [2020-07-28 19:01:30,071 WARN L170 areAnnotationChecker]: L564-1 has no Hoare annotation [2020-07-28 19:01:30,071 WARN L170 areAnnotationChecker]: L540 has no Hoare annotation [2020-07-28 19:01:30,071 WARN L170 areAnnotationChecker]: L825 has no Hoare annotation [2020-07-28 19:01:30,072 WARN L170 areAnnotationChecker]: L776 has no Hoare annotation [2020-07-28 19:01:30,072 WARN L170 areAnnotationChecker]: L776 has no Hoare annotation [2020-07-28 19:01:30,072 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 19:01:30,072 WARN L170 areAnnotationChecker]: L597-1 has no Hoare annotation [2020-07-28 19:01:30,072 WARN L170 areAnnotationChecker]: L597-1 has no Hoare annotation [2020-07-28 19:01:30,073 WARN L170 areAnnotationChecker]: L777 has no Hoare annotation [2020-07-28 19:01:30,073 WARN L170 areAnnotationChecker]: L840-3 has no Hoare annotation [2020-07-28 19:01:30,073 WARN L170 areAnnotationChecker]: L840-3 has no Hoare annotation [2020-07-28 19:01:30,073 WARN L170 areAnnotationChecker]: L597-2 has no Hoare annotation [2020-07-28 19:01:30,073 WARN L170 areAnnotationChecker]: L597-2 has no Hoare annotation [2020-07-28 19:01:30,074 WARN L170 areAnnotationChecker]: L785 has no Hoare annotation [2020-07-28 19:01:30,074 WARN L170 areAnnotationChecker]: L785 has no Hoare annotation [2020-07-28 19:01:30,074 WARN L170 areAnnotationChecker]: L629-1 has no Hoare annotation [2020-07-28 19:01:30,074 WARN L170 areAnnotationChecker]: L629-1 has no Hoare annotation [2020-07-28 19:01:30,074 WARN L170 areAnnotationChecker]: L604-1 has no Hoare annotation [2020-07-28 19:01:30,075 WARN L170 areAnnotationChecker]: L852 has no Hoare annotation [2020-07-28 19:01:30,075 WARN L170 areAnnotationChecker]: L852 has no Hoare annotation [2020-07-28 19:01:30,075 WARN L170 areAnnotationChecker]: L785-1 has no Hoare annotation [2020-07-28 19:01:30,075 WARN L170 areAnnotationChecker]: L918-1 has no Hoare annotation [2020-07-28 19:01:30,075 WARN L170 areAnnotationChecker]: L877-1 has no Hoare annotation [2020-07-28 19:01:30,075 WARN L170 areAnnotationChecker]: L795 has no Hoare annotation [2020-07-28 19:01:30,076 WARN L170 areAnnotationChecker]: L795 has no Hoare annotation [2020-07-28 19:01:30,076 WARN L170 areAnnotationChecker]: L731-3 has no Hoare annotation [2020-07-28 19:01:30,076 WARN L170 areAnnotationChecker]: L731-3 has no Hoare annotation [2020-07-28 19:01:30,076 WARN L170 areAnnotationChecker]: L558-2 has no Hoare annotation [2020-07-28 19:01:30,076 WARN L170 areAnnotationChecker]: L558-2 has no Hoare annotation [2020-07-28 19:01:30,077 WARN L170 areAnnotationChecker]: L864 has no Hoare annotation [2020-07-28 19:01:30,077 WARN L170 areAnnotationChecker]: L864 has no Hoare annotation [2020-07-28 19:01:30,077 WARN L170 areAnnotationChecker]: L795-1 has no Hoare annotation [2020-07-28 19:01:30,077 WARN L170 areAnnotationChecker]: L731-5 has no Hoare annotation [2020-07-28 19:01:30,077 WARN L170 areAnnotationChecker]: L564-3 has no Hoare annotation [2020-07-28 19:01:30,078 WARN L170 areAnnotationChecker]: L909-1 has no Hoare annotation [2020-07-28 19:01:30,078 WARN L170 areAnnotationChecker]: L805 has no Hoare annotation [2020-07-28 19:01:30,078 WARN L170 areAnnotationChecker]: L805 has no Hoare annotation [2020-07-28 19:01:30,078 WARN L170 areAnnotationChecker]: L737-1 has no Hoare annotation [2020-07-28 19:01:30,078 WARN L170 areAnnotationChecker]: L456-2 has no Hoare annotation [2020-07-28 19:01:30,078 WARN L170 areAnnotationChecker]: L456-2 has no Hoare annotation [2020-07-28 19:01:30,079 WARN L170 areAnnotationChecker]: L456-2 has no Hoare annotation [2020-07-28 19:01:30,079 WARN L170 areAnnotationChecker]: L564-2 has no Hoare annotation [2020-07-28 19:01:30,079 WARN L170 areAnnotationChecker]: L564-2 has no Hoare annotation [2020-07-28 19:01:30,079 WARN L170 areAnnotationChecker]: L813-1 has no Hoare annotation [2020-07-28 19:01:30,079 WARN L170 areAnnotationChecker]: L813-1 has no Hoare annotation [2020-07-28 19:01:30,080 WARN L170 areAnnotationChecker]: L813 has no Hoare annotation [2020-07-28 19:01:30,080 WARN L170 areAnnotationChecker]: L813 has no Hoare annotation [2020-07-28 19:01:30,080 WARN L170 areAnnotationChecker]: L633-1 has no Hoare annotation [2020-07-28 19:01:30,080 WARN L170 areAnnotationChecker]: L633-1 has no Hoare annotation [2020-07-28 19:01:30,080 WARN L170 areAnnotationChecker]: L457 has no Hoare annotation [2020-07-28 19:01:30,081 WARN L170 areAnnotationChecker]: L682-1 has no Hoare annotation [2020-07-28 19:01:30,081 WARN L170 areAnnotationChecker]: L840 has no Hoare annotation [2020-07-28 19:01:30,081 WARN L170 areAnnotationChecker]: L840 has no Hoare annotation [2020-07-28 19:01:30,081 WARN L170 areAnnotationChecker]: L597 has no Hoare annotation [2020-07-28 19:01:30,081 WARN L170 areAnnotationChecker]: L597 has no Hoare annotation [2020-07-28 19:01:30,082 WARN L170 areAnnotationChecker]: L745 has no Hoare annotation [2020-07-28 19:01:30,082 WARN L170 areAnnotationChecker]: L745 has no Hoare annotation [2020-07-28 19:01:30,082 WARN L170 areAnnotationChecker]: L460 has no Hoare annotation [2020-07-28 19:01:30,082 WARN L170 areAnnotationChecker]: L460 has no Hoare annotation [2020-07-28 19:01:30,082 WARN L170 areAnnotationChecker]: L568-2 has no Hoare annotation [2020-07-28 19:01:30,083 WARN L170 areAnnotationChecker]: L568-2 has no Hoare annotation [2020-07-28 19:01:30,083 WARN L170 areAnnotationChecker]: L629 has no Hoare annotation [2020-07-28 19:01:30,083 WARN L170 areAnnotationChecker]: L629 has no Hoare annotation [2020-07-28 19:01:30,083 WARN L170 areAnnotationChecker]: L604 has no Hoare annotation [2020-07-28 19:01:30,083 WARN L170 areAnnotationChecker]: L745-1 has no Hoare annotation [2020-07-28 19:01:30,084 WARN L170 areAnnotationChecker]: L460-1 has no Hoare annotation [2020-07-28 19:01:30,084 WARN L170 areAnnotationChecker]: L460-1 has no Hoare annotation [2020-07-28 19:01:30,084 WARN L170 areAnnotationChecker]: L927-1 has no Hoare annotation [2020-07-28 19:01:30,084 WARN L170 areAnnotationChecker]: L927-1 has no Hoare annotation [2020-07-28 19:01:30,084 WARN L170 areAnnotationChecker]: L918 has no Hoare annotation [2020-07-28 19:01:30,085 WARN L170 areAnnotationChecker]: L877 has no Hoare annotation [2020-07-28 19:01:30,085 WARN L170 areAnnotationChecker]: L840-6 has no Hoare annotation [2020-07-28 19:01:30,085 WARN L170 areAnnotationChecker]: L840-6 has no Hoare annotation [2020-07-28 19:01:30,085 WARN L170 areAnnotationChecker]: L597-3 has no Hoare annotation [2020-07-28 19:01:30,085 WARN L170 areAnnotationChecker]: L597-3 has no Hoare annotation [2020-07-28 19:01:30,086 WARN L170 areAnnotationChecker]: L731 has no Hoare annotation [2020-07-28 19:01:30,086 WARN L170 areAnnotationChecker]: L731 has no Hoare annotation [2020-07-28 19:01:30,086 WARN L170 areAnnotationChecker]: L558 has no Hoare annotation [2020-07-28 19:01:30,086 WARN L170 areAnnotationChecker]: L558 has no Hoare annotation [2020-07-28 19:01:30,086 WARN L170 areAnnotationChecker]: L629-2 has no Hoare annotation [2020-07-28 19:01:30,087 WARN L170 areAnnotationChecker]: L629-2 has no Hoare annotation [2020-07-28 19:01:30,087 WARN L170 areAnnotationChecker]: L604-2 has no Hoare annotation [2020-07-28 19:01:30,087 WARN L170 areAnnotationChecker]: L731-2 has no Hoare annotation [2020-07-28 19:01:30,087 WARN L170 areAnnotationChecker]: L909 has no Hoare annotation [2020-07-28 19:01:30,087 WARN L170 areAnnotationChecker]: L918-2 has no Hoare annotation [2020-07-28 19:01:30,088 WARN L170 areAnnotationChecker]: L877-2 has no Hoare annotation [2020-07-28 19:01:30,088 WARN L170 areAnnotationChecker]: L737 has no Hoare annotation [2020-07-28 19:01:30,088 WARN L170 areAnnotationChecker]: L564 has no Hoare annotation [2020-07-28 19:01:30,088 WARN L170 areAnnotationChecker]: L564 has no Hoare annotation [2020-07-28 19:01:30,088 WARN L170 areAnnotationChecker]: L731-6 has no Hoare annotation [2020-07-28 19:01:30,089 WARN L170 areAnnotationChecker]: L731-6 has no Hoare annotation [2020-07-28 19:01:30,089 WARN L170 areAnnotationChecker]: L558-4 has no Hoare annotation [2020-07-28 19:01:30,089 WARN L170 areAnnotationChecker]: L558-4 has no Hoare annotation [2020-07-28 19:01:30,089 WARN L170 areAnnotationChecker]: L633 has no Hoare annotation [2020-07-28 19:01:30,089 WARN L170 areAnnotationChecker]: L633 has no Hoare annotation [2020-07-28 19:01:30,089 WARN L170 areAnnotationChecker]: L682 has no Hoare annotation [2020-07-28 19:01:30,090 WARN L170 areAnnotationChecker]: L731-8 has no Hoare annotation [2020-07-28 19:01:30,090 WARN L170 areAnnotationChecker]: L564-5 has no Hoare annotation [2020-07-28 19:01:30,090 WARN L170 areAnnotationChecker]: L909-2 has no Hoare annotation [2020-07-28 19:01:30,090 WARN L170 areAnnotationChecker]: L568 has no Hoare annotation [2020-07-28 19:01:30,090 WARN L170 areAnnotationChecker]: L568 has no Hoare annotation [2020-07-28 19:01:30,091 WARN L170 areAnnotationChecker]: L737-2 has no Hoare annotation [2020-07-28 19:01:30,091 WARN L170 areAnnotationChecker]: L564-4 has no Hoare annotation [2020-07-28 19:01:30,091 WARN L170 areAnnotationChecker]: L564-4 has no Hoare annotation [2020-07-28 19:01:30,091 WARN L170 areAnnotationChecker]: L927 has no Hoare annotation [2020-07-28 19:01:30,091 WARN L170 areAnnotationChecker]: L927 has no Hoare annotation [2020-07-28 19:01:30,092 WARN L170 areAnnotationChecker]: L633-2 has no Hoare annotation [2020-07-28 19:01:30,092 WARN L170 areAnnotationChecker]: L633-2 has no Hoare annotation [2020-07-28 19:01:30,092 WARN L170 areAnnotationChecker]: L682-2 has no Hoare annotation [2020-07-28 19:01:30,092 WARN L170 areAnnotationChecker]: L568-4 has no Hoare annotation [2020-07-28 19:01:30,093 WARN L170 areAnnotationChecker]: L568-4 has no Hoare annotation [2020-07-28 19:01:30,093 WARN L170 areAnnotationChecker]: L927-2 has no Hoare annotation [2020-07-28 19:01:30,093 WARN L170 areAnnotationChecker]: L927-2 has no Hoare annotation [2020-07-28 19:01:30,093 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 19:01:30,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 07:01:30 BoogieIcfgContainer [2020-07-28 19:01:30,096 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 19:01:30,097 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 19:01:30,097 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 19:01:30,098 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 19:01:30,098 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 07:01:25" (3/4) ... [2020-07-28 19:01:30,101 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-07-28 19:01:30,262 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 19:01:30,262 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 19:01:30,265 INFO L168 Benchmark]: Toolchain (without parser) took 7106.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 208.7 MB). Free memory was 954.9 MB in the beginning and 809.1 MB in the end (delta: 145.8 MB). Peak memory consumption was 354.5 MB. Max. memory is 11.5 GB. [2020-07-28 19:01:30,265 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 19:01:30,266 INFO L168 Benchmark]: CACSL2BoogieTranslator took 703.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -152.7 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2020-07-28 19:01:30,266 INFO L168 Benchmark]: Boogie Procedure Inliner took 115.51 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 19:01:30,267 INFO L168 Benchmark]: Boogie Preprocessor took 58.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2020-07-28 19:01:30,267 INFO L168 Benchmark]: RCFGBuilder took 1446.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 948.9 MB in the end (delta: 146.6 MB). Peak memory consumption was 146.6 MB. Max. memory is 11.5 GB. [2020-07-28 19:01:30,268 INFO L168 Benchmark]: TraceAbstraction took 4608.83 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 80.7 MB). Free memory was 948.9 MB in the beginning and 840.7 MB in the end (delta: 108.2 MB). Peak memory consumption was 189.0 MB. Max. memory is 11.5 GB. [2020-07-28 19:01:30,268 INFO L168 Benchmark]: Witness Printer took 165.00 ms. Allocated memory is still 1.2 GB. Free memory was 840.7 MB in the beginning and 809.1 MB in the end (delta: 31.6 MB). Peak memory consumption was 31.6 MB. Max. memory is 11.5 GB. [2020-07-28 19:01:30,271 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 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 703.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -152.7 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 115.51 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 58.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1446.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 948.9 MB in the end (delta: 146.6 MB). Peak memory consumption was 146.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4608.83 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 80.7 MB). Free memory was 948.9 MB in the beginning and 840.7 MB in the end (delta: 108.2 MB). Peak memory consumption was 189.0 MB. Max. memory is 11.5 GB. * Witness Printer took 165.00 ms. Allocated memory is still 1.2 GB. Free memory was 840.7 MB in the beginning and 809.1 MB in the end (delta: 31.6 MB). Peak memory consumption was 31.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 927]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L247] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L444] int cleanupTimeShifts = 4; [L590] int pumpRunning = 0; [L591] int systemActive = 1; [L834] int waterLevel = 1; [L835] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L522] int retValue_acc ; [L523] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L529] tmp = valid_product() [L531] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L766] int splverifierCounter ; [L767] int tmp ; [L768] int tmp___0 ; [L769] int tmp___1 ; [L770] int tmp___2 ; [L773] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L775] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L777] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L783] tmp = __VERIFIER_nondet_int() [L785] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L852] COND TRUE waterLevel < 2 [L853] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L793] tmp___0 = __VERIFIER_nondet_int() [L795] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L803] tmp___2 = __VERIFIER_nondet_int() [L805] COND TRUE \read(tmp___2) [L760] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L597] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L604] COND TRUE \read(systemActive) [L626] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L629] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L550] int tmp ; [L551] int tmp___0 ; [L552] int tmp___1 ; [L873] int retValue_acc ; [L876] retValue_acc = methaneLevelCritical [L877] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L556] tmp = isMethaneLevelCritical() [L558] COND FALSE !(\read(tmp)) [L905] int retValue_acc ; [L908] retValue_acc = waterLevel [L909] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L562] tmp___0 = getWaterLevel() [L564] COND TRUE tmp___0 == 2 [L678] int retValue_acc ; [L681] retValue_acc = pumpRunning [L682] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L566] tmp___1 = isPumpRunning() [L568] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L927] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 83 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 299 SDtfs, 311 SDslu, 245 SDs, 0 SdLazy, 46 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=116occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 178 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 2890 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...