./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product35.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_spec2_product35.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 c300c29b8d9fc061a97d8a30a731a0ec640f0644 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-28 18:59:41,084 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 18:59:41,086 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 18:59:41,097 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 18:59:41,098 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 18:59:41,099 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 18:59:41,100 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 18:59:41,102 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 18:59:41,104 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 18:59:41,105 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 18:59:41,106 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 18:59:41,107 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 18:59:41,107 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 18:59:41,108 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 18:59:41,109 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 18:59:41,110 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 18:59:41,111 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 18:59:41,112 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 18:59:41,114 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 18:59:41,116 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 18:59:41,118 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 18:59:41,119 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 18:59:41,120 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 18:59:41,121 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 18:59:41,124 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 18:59:41,125 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 18:59:41,125 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 18:59:41,126 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 18:59:41,126 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 18:59:41,127 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 18:59:41,128 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 18:59:41,129 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 18:59:41,129 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 18:59:41,130 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 18:59:41,131 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 18:59:41,132 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 18:59:41,132 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 18:59:41,133 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 18:59:41,133 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 18:59:41,134 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 18:59:41,135 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 18:59:41,135 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 18:59:41,156 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 18:59:41,156 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 18:59:41,158 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 18:59:41,158 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 18:59:41,158 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 18:59:41,158 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 18:59:41,159 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 18:59:41,159 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 18:59:41,159 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 18:59:41,159 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 18:59:41,159 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 18:59:41,160 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 18:59:41,160 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 18:59:41,160 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 18:59:41,160 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 18:59:41,160 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 18:59:41,161 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 18:59:41,161 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 18:59:41,161 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 18:59:41,161 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 18:59:41,162 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 18:59:41,162 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 18:59:41,162 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 18:59:41,162 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 18:59:41,163 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 18:59:41,163 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 18:59:41,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 18:59:41,163 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 18:59:41,163 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 18:59:41,164 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 -> c300c29b8d9fc061a97d8a30a731a0ec640f0644 [2020-07-28 18:59:41,486 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 18:59:41,505 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 18:59:41,508 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 18:59:41,510 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 18:59:41,512 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 18:59:41,513 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c [2020-07-28 18:59:41,579 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/288c5bd5c/2d04dcabe2154d3981fc8c5359dd2ed3/FLAG62fc7158c [2020-07-28 18:59:42,085 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 18:59:42,086 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c [2020-07-28 18:59:42,105 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/288c5bd5c/2d04dcabe2154d3981fc8c5359dd2ed3/FLAG62fc7158c [2020-07-28 18:59:42,418 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/288c5bd5c/2d04dcabe2154d3981fc8c5359dd2ed3 [2020-07-28 18:59:42,421 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 18:59:42,424 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 18:59:42,425 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 18:59:42,425 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 18:59:42,429 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 18:59:42,430 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 06:59:42" (1/1) ... [2020-07-28 18:59:42,433 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62886f96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:59:42, skipping insertion in model container [2020-07-28 18:59:42,433 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 06:59:42" (1/1) ... [2020-07-28 18:59:42,441 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 18:59:42,496 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 18:59:42,901 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 18:59:42,914 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 18:59:43,061 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 18:59:43,106 INFO L208 MainTranslator]: Completed translation [2020-07-28 18:59:43,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:59:43 WrapperNode [2020-07-28 18:59:43,107 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 18:59:43,108 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 18:59:43,108 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 18:59:43,108 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 18:59:43,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:59:43" (1/1) ... [2020-07-28 18:59:43,133 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:59:43" (1/1) ... [2020-07-28 18:59:43,184 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 18:59:43,184 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 18:59:43,184 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 18:59:43,185 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 18:59:43,195 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:59:43" (1/1) ... [2020-07-28 18:59:43,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:59:43" (1/1) ... [2020-07-28 18:59:43,200 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:59:43" (1/1) ... [2020-07-28 18:59:43,200 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:59:43" (1/1) ... [2020-07-28 18:59:43,223 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:59:43" (1/1) ... [2020-07-28 18:59:43,231 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:59:43" (1/1) ... [2020-07-28 18:59:43,234 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:59:43" (1/1) ... [2020-07-28 18:59:43,238 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 18:59:43,239 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 18:59:43,239 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 18:59:43,239 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 18:59:43,240 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:59:43" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 18:59:43,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 18:59:43,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-28 18:59:43,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 18:59:43,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 18:59:44,674 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 18:59:44,674 INFO L295 CfgBuilder]: Removed 102 assume(true) statements. [2020-07-28 18:59:44,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 06:59:44 BoogieIcfgContainer [2020-07-28 18:59:44,680 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 18:59:44,681 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 18:59:44,681 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 18:59:44,684 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 18:59:44,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 06:59:42" (1/3) ... [2020-07-28 18:59:44,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25ad2e62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 06:59:44, skipping insertion in model container [2020-07-28 18:59:44,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:59:43" (2/3) ... [2020-07-28 18:59:44,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25ad2e62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 06:59:44, skipping insertion in model container [2020-07-28 18:59:44,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 06:59:44" (3/3) ... [2020-07-28 18:59:44,688 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product35.cil.c [2020-07-28 18:59:44,699 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 18:59:44,707 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-07-28 18:59:44,721 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-07-28 18:59:44,750 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 18:59:44,750 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 18:59:44,750 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 18:59:44,751 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 18:59:44,751 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 18:59:44,751 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 18:59:44,751 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 18:59:44,752 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 18:59:44,772 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states. [2020-07-28 18:59:44,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-07-28 18:59:44,779 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:59:44,780 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 18:59:44,781 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:59:44,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:59:44,787 INFO L82 PathProgramCache]: Analyzing trace with hash -1673386384, now seen corresponding path program 1 times [2020-07-28 18:59:44,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:59:44,797 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994467949] [2020-07-28 18:59:44,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:59:44,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:59:45,111 INFO L280 TraceCheckUtils]: 0: Hoare triple {87#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(13);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string40.base, #t~string40.offset, 1);call write~init~int(110, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(102, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(102, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 3 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string44.base, #t~string44.offset, 1);call write~init~int(80, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(117, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(109, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(112, #t~string44.base, 4 + #t~string44.offset, 1);call write~init~int(58, #t~string44.base, 5 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 6 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string50.base, #t~string50.offset, 1);call write~init~int(32, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 2 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string52.base, #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 1 + #t~string52.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(77, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(101, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(116, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(104, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string67.base, #t~string67.offset, 1);call write~init~int(82, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(73, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(84, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 4 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(75, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 1 + #t~string71.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {87#true} is VALID [2020-07-28 18:59:45,112 INFO L280 TraceCheckUtils]: 1: Hoare triple {87#true} havoc main_#res;havoc main_#t~ret61, main_~retValue_acc~8, main_~tmp~7;havoc main_~retValue_acc~8;havoc main_~tmp~7; {87#true} is VALID [2020-07-28 18:59:45,112 INFO L280 TraceCheckUtils]: 2: Hoare triple {87#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; {87#true} is VALID [2020-07-28 18:59:45,113 INFO L280 TraceCheckUtils]: 3: Hoare triple {87#true} main_#t~ret61 := valid_product_#res;assume -2147483648 <= main_#t~ret61 && main_#t~ret61 <= 2147483647;main_~tmp~7 := main_#t~ret61;havoc main_#t~ret61; {87#true} is VALID [2020-07-28 18:59:45,113 INFO L280 TraceCheckUtils]: 4: Hoare triple {87#true} assume 0 != main_~tmp~7; {87#true} is VALID [2020-07-28 18:59:45,114 INFO L280 TraceCheckUtils]: 5: Hoare triple {87#true} ~methAndRunningLastTime~0 := 0; {87#true} is VALID [2020-07-28 18:59:45,114 INFO L280 TraceCheckUtils]: 6: Hoare triple {87#true} havoc test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {87#true} is VALID [2020-07-28 18:59:45,116 INFO L280 TraceCheckUtils]: 7: Hoare triple {87#true} assume !true; {88#false} is VALID [2020-07-28 18:59:45,116 INFO L280 TraceCheckUtils]: 8: Hoare triple {88#false} havoc cleanup_~i~0, cleanup_~__cil_tmp2~0;havoc cleanup_~i~0;havoc cleanup_~__cil_tmp2~0; {88#false} is VALID [2020-07-28 18:59:45,117 INFO L280 TraceCheckUtils]: 9: Hoare triple {88#false} assume !(0 != ~pumpRunning~0); {88#false} is VALID [2020-07-28 18:59:45,117 INFO L280 TraceCheckUtils]: 10: Hoare triple {88#false} assume !(0 != ~systemActive~0); {88#false} is VALID [2020-07-28 18:59:45,117 INFO L280 TraceCheckUtils]: 11: Hoare triple {88#false} havoc __utac_acc__Specification2_spec__2_#t~ret58, __utac_acc__Specification2_spec__2_#t~ret59, __utac_acc__Specification2_spec__2_~tmp~6, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~6;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;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; {88#false} is VALID [2020-07-28 18:59:45,118 INFO L280 TraceCheckUtils]: 12: Hoare triple {88#false} __utac_acc__Specification2_spec__2_#t~ret58 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification2_spec__2_#t~ret58 && __utac_acc__Specification2_spec__2_#t~ret58 <= 2147483647;__utac_acc__Specification2_spec__2_~tmp~6 := __utac_acc__Specification2_spec__2_#t~ret58;havoc __utac_acc__Specification2_spec__2_#t~ret58; {88#false} is VALID [2020-07-28 18:59:45,120 INFO L280 TraceCheckUtils]: 13: Hoare triple {88#false} assume 0 != __utac_acc__Specification2_spec__2_~tmp~6;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; {88#false} is VALID [2020-07-28 18:59:45,121 INFO L280 TraceCheckUtils]: 14: Hoare triple {88#false} __utac_acc__Specification2_spec__2_#t~ret59 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification2_spec__2_#t~ret59 && __utac_acc__Specification2_spec__2_#t~ret59 <= 2147483647;__utac_acc__Specification2_spec__2_~tmp___0~2 := __utac_acc__Specification2_spec__2_#t~ret59;havoc __utac_acc__Specification2_spec__2_#t~ret59; {88#false} is VALID [2020-07-28 18:59:45,121 INFO L280 TraceCheckUtils]: 15: Hoare triple {88#false} assume 0 != __utac_acc__Specification2_spec__2_~tmp___0~2; {88#false} is VALID [2020-07-28 18:59:45,121 INFO L280 TraceCheckUtils]: 16: Hoare triple {88#false} assume 0 != ~methAndRunningLastTime~0; {88#false} is VALID [2020-07-28 18:59:45,122 INFO L280 TraceCheckUtils]: 17: Hoare triple {88#false} assume !false; {88#false} is VALID [2020-07-28 18:59:45,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:59:45,131 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994467949] [2020-07-28 18:59:45,132 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:59:45,133 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 18:59:45,134 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182502856] [2020-07-28 18:59:45,140 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-07-28 18:59:45,142 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:59:45,145 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 18:59:45,192 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 18:59:45,192 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 18:59:45,193 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:59:45,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 18:59:45,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 18:59:45,205 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 2 states. [2020-07-28 18:59:45,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:59:45,419 INFO L93 Difference]: Finished difference Result 161 states and 246 transitions. [2020-07-28 18:59:45,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 18:59:45,420 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-07-28 18:59:45,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:59:45,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 18:59:45,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 246 transitions. [2020-07-28 18:59:45,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 18:59:45,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 246 transitions. [2020-07-28 18:59:45,438 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 246 transitions. [2020-07-28 18:59:45,737 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 246 edges. 246 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:59:45,752 INFO L225 Difference]: With dead ends: 161 [2020-07-28 18:59:45,752 INFO L226 Difference]: Without dead ends: 80 [2020-07-28 18:59:45,756 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 18:59:45,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-07-28 18:59:45,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-07-28 18:59:45,811 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:59:45,812 INFO L82 GeneralOperation]: Start isEquivalent. First operand 80 states. Second operand 80 states. [2020-07-28 18:59:45,813 INFO L74 IsIncluded]: Start isIncluded. First operand 80 states. Second operand 80 states. [2020-07-28 18:59:45,813 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 80 states. [2020-07-28 18:59:45,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:59:45,819 INFO L93 Difference]: Finished difference Result 80 states and 115 transitions. [2020-07-28 18:59:45,820 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 115 transitions. [2020-07-28 18:59:45,821 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:59:45,821 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:59:45,821 INFO L74 IsIncluded]: Start isIncluded. First operand 80 states. Second operand 80 states. [2020-07-28 18:59:45,821 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 80 states. [2020-07-28 18:59:45,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:59:45,827 INFO L93 Difference]: Finished difference Result 80 states and 115 transitions. [2020-07-28 18:59:45,828 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 115 transitions. [2020-07-28 18:59:45,828 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:59:45,829 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:59:45,829 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:59:45,829 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:59:45,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-07-28 18:59:45,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 115 transitions. [2020-07-28 18:59:45,836 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 115 transitions. Word has length 18 [2020-07-28 18:59:45,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:59:45,836 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 115 transitions. [2020-07-28 18:59:45,836 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 18:59:45,836 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 115 transitions. [2020-07-28 18:59:45,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-07-28 18:59:45,838 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:59:45,838 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 18:59:45,838 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 18:59:45,838 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:59:45,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:59:45,839 INFO L82 PathProgramCache]: Analyzing trace with hash 572864739, now seen corresponding path program 1 times [2020-07-28 18:59:45,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:59:45,839 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089130380] [2020-07-28 18:59:45,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:59:45,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:59:46,007 INFO L280 TraceCheckUtils]: 0: Hoare triple {585#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(13);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string40.base, #t~string40.offset, 1);call write~init~int(110, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(102, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(102, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 3 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string44.base, #t~string44.offset, 1);call write~init~int(80, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(117, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(109, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(112, #t~string44.base, 4 + #t~string44.offset, 1);call write~init~int(58, #t~string44.base, 5 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 6 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string50.base, #t~string50.offset, 1);call write~init~int(32, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 2 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string52.base, #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 1 + #t~string52.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(77, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(101, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(116, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(104, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string67.base, #t~string67.offset, 1);call write~init~int(82, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(73, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(84, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 4 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(75, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 1 + #t~string71.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {585#true} is VALID [2020-07-28 18:59:46,007 INFO L280 TraceCheckUtils]: 1: Hoare triple {585#true} havoc main_#res;havoc main_#t~ret61, main_~retValue_acc~8, main_~tmp~7;havoc main_~retValue_acc~8;havoc main_~tmp~7; {585#true} is VALID [2020-07-28 18:59:46,008 INFO L280 TraceCheckUtils]: 2: Hoare triple {585#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; {585#true} is VALID [2020-07-28 18:59:46,008 INFO L280 TraceCheckUtils]: 3: Hoare triple {585#true} main_#t~ret61 := valid_product_#res;assume -2147483648 <= main_#t~ret61 && main_#t~ret61 <= 2147483647;main_~tmp~7 := main_#t~ret61;havoc main_#t~ret61; {585#true} is VALID [2020-07-28 18:59:46,009 INFO L280 TraceCheckUtils]: 4: Hoare triple {585#true} assume 0 != main_~tmp~7; {585#true} is VALID [2020-07-28 18:59:46,009 INFO L280 TraceCheckUtils]: 5: Hoare triple {585#true} ~methAndRunningLastTime~0 := 0; {585#true} is VALID [2020-07-28 18:59:46,010 INFO L280 TraceCheckUtils]: 6: Hoare triple {585#true} havoc test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {587#(= 0 ULTIMATE.start_test_~splverifierCounter~0)} is VALID [2020-07-28 18:59:46,011 INFO L280 TraceCheckUtils]: 7: Hoare triple {587#(= 0 ULTIMATE.start_test_~splverifierCounter~0)} assume !false; {587#(= 0 ULTIMATE.start_test_~splverifierCounter~0)} is VALID [2020-07-28 18:59:46,012 INFO L280 TraceCheckUtils]: 8: Hoare triple {587#(= 0 ULTIMATE.start_test_~splverifierCounter~0)} assume !(test_~splverifierCounter~0 < 4); {586#false} is VALID [2020-07-28 18:59:46,013 INFO L280 TraceCheckUtils]: 9: Hoare triple {586#false} havoc cleanup_~i~0, cleanup_~__cil_tmp2~0;havoc cleanup_~i~0;havoc cleanup_~__cil_tmp2~0; {586#false} is VALID [2020-07-28 18:59:46,013 INFO L280 TraceCheckUtils]: 10: Hoare triple {586#false} assume !(0 != ~pumpRunning~0); {586#false} is VALID [2020-07-28 18:59:46,013 INFO L280 TraceCheckUtils]: 11: Hoare triple {586#false} assume !(0 != ~systemActive~0); {586#false} is VALID [2020-07-28 18:59:46,014 INFO L280 TraceCheckUtils]: 12: Hoare triple {586#false} havoc __utac_acc__Specification2_spec__2_#t~ret58, __utac_acc__Specification2_spec__2_#t~ret59, __utac_acc__Specification2_spec__2_~tmp~6, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~6;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;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; {586#false} is VALID [2020-07-28 18:59:46,014 INFO L280 TraceCheckUtils]: 13: Hoare triple {586#false} __utac_acc__Specification2_spec__2_#t~ret58 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification2_spec__2_#t~ret58 && __utac_acc__Specification2_spec__2_#t~ret58 <= 2147483647;__utac_acc__Specification2_spec__2_~tmp~6 := __utac_acc__Specification2_spec__2_#t~ret58;havoc __utac_acc__Specification2_spec__2_#t~ret58; {586#false} is VALID [2020-07-28 18:59:46,015 INFO L280 TraceCheckUtils]: 14: Hoare triple {586#false} assume 0 != __utac_acc__Specification2_spec__2_~tmp~6;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; {586#false} is VALID [2020-07-28 18:59:46,015 INFO L280 TraceCheckUtils]: 15: Hoare triple {586#false} __utac_acc__Specification2_spec__2_#t~ret59 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification2_spec__2_#t~ret59 && __utac_acc__Specification2_spec__2_#t~ret59 <= 2147483647;__utac_acc__Specification2_spec__2_~tmp___0~2 := __utac_acc__Specification2_spec__2_#t~ret59;havoc __utac_acc__Specification2_spec__2_#t~ret59; {586#false} is VALID [2020-07-28 18:59:46,015 INFO L280 TraceCheckUtils]: 16: Hoare triple {586#false} assume 0 != __utac_acc__Specification2_spec__2_~tmp___0~2; {586#false} is VALID [2020-07-28 18:59:46,016 INFO L280 TraceCheckUtils]: 17: Hoare triple {586#false} assume 0 != ~methAndRunningLastTime~0; {586#false} is VALID [2020-07-28 18:59:46,016 INFO L280 TraceCheckUtils]: 18: Hoare triple {586#false} assume !false; {586#false} is VALID [2020-07-28 18:59:46,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:59:46,018 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089130380] [2020-07-28 18:59:46,018 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:59:46,018 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 18:59:46,019 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679459276] [2020-07-28 18:59:46,021 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-07-28 18:59:46,021 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:59:46,021 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 18:59:46,057 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 18:59:46,058 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 18:59:46,058 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:59:46,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 18:59:46,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 18:59:46,059 INFO L87 Difference]: Start difference. First operand 80 states and 115 transitions. Second operand 3 states. [2020-07-28 18:59:46,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:59:46,256 INFO L93 Difference]: Finished difference Result 80 states and 115 transitions. [2020-07-28 18:59:46,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 18:59:46,256 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-07-28 18:59:46,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:59:46,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 18:59:46,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 115 transitions. [2020-07-28 18:59:46,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 18:59:46,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 115 transitions. [2020-07-28 18:59:46,265 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 115 transitions. [2020-07-28 18:59:46,450 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 115 edges. 115 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:59:46,451 INFO L225 Difference]: With dead ends: 80 [2020-07-28 18:59:46,452 INFO L226 Difference]: Without dead ends: 38 [2020-07-28 18:59:46,453 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 18:59:46,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-07-28 18:59:46,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-07-28 18:59:46,477 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:59:46,477 INFO L82 GeneralOperation]: Start isEquivalent. First operand 38 states. Second operand 38 states. [2020-07-28 18:59:46,477 INFO L74 IsIncluded]: Start isIncluded. First operand 38 states. Second operand 38 states. [2020-07-28 18:59:46,477 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 38 states. [2020-07-28 18:59:46,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:59:46,480 INFO L93 Difference]: Finished difference Result 38 states and 54 transitions. [2020-07-28 18:59:46,480 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 54 transitions. [2020-07-28 18:59:46,481 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:59:46,481 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:59:46,481 INFO L74 IsIncluded]: Start isIncluded. First operand 38 states. Second operand 38 states. [2020-07-28 18:59:46,481 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 38 states. [2020-07-28 18:59:46,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:59:46,483 INFO L93 Difference]: Finished difference Result 38 states and 54 transitions. [2020-07-28 18:59:46,483 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 54 transitions. [2020-07-28 18:59:46,484 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:59:46,484 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:59:46,484 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:59:46,484 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:59:46,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-07-28 18:59:46,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 54 transitions. [2020-07-28 18:59:46,486 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 54 transitions. Word has length 19 [2020-07-28 18:59:46,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:59:46,486 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 54 transitions. [2020-07-28 18:59:46,487 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 18:59:46,487 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 54 transitions. [2020-07-28 18:59:46,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-07-28 18:59:46,488 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:59:46,488 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 18:59:46,488 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 18:59:46,488 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:59:46,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:59:46,489 INFO L82 PathProgramCache]: Analyzing trace with hash -2071848385, now seen corresponding path program 1 times [2020-07-28 18:59:46,489 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:59:46,489 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073366093] [2020-07-28 18:59:46,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:59:46,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:59:46,593 INFO L280 TraceCheckUtils]: 0: Hoare triple {830#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(13);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string40.base, #t~string40.offset, 1);call write~init~int(110, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(102, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(102, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 3 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string44.base, #t~string44.offset, 1);call write~init~int(80, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(117, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(109, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(112, #t~string44.base, 4 + #t~string44.offset, 1);call write~init~int(58, #t~string44.base, 5 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 6 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string50.base, #t~string50.offset, 1);call write~init~int(32, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 2 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string52.base, #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 1 + #t~string52.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(77, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(101, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(116, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(104, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string67.base, #t~string67.offset, 1);call write~init~int(82, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(73, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(84, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 4 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(75, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 1 + #t~string71.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {832#(= 1 ~systemActive~0)} is VALID [2020-07-28 18:59:46,594 INFO L280 TraceCheckUtils]: 1: Hoare triple {832#(= 1 ~systemActive~0)} havoc main_#res;havoc main_#t~ret61, main_~retValue_acc~8, main_~tmp~7;havoc main_~retValue_acc~8;havoc main_~tmp~7; {832#(= 1 ~systemActive~0)} is VALID [2020-07-28 18:59:46,595 INFO L280 TraceCheckUtils]: 2: Hoare triple {832#(= 1 ~systemActive~0)} havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; {833#(= |ULTIMATE.start_valid_product_#res| ~systemActive~0)} is VALID [2020-07-28 18:59:46,596 INFO L280 TraceCheckUtils]: 3: Hoare triple {833#(= |ULTIMATE.start_valid_product_#res| ~systemActive~0)} main_#t~ret61 := valid_product_#res;assume -2147483648 <= main_#t~ret61 && main_#t~ret61 <= 2147483647;main_~tmp~7 := main_#t~ret61;havoc main_#t~ret61; {834#(= ULTIMATE.start_main_~tmp~7 ~systemActive~0)} is VALID [2020-07-28 18:59:46,597 INFO L280 TraceCheckUtils]: 4: Hoare triple {834#(= ULTIMATE.start_main_~tmp~7 ~systemActive~0)} assume 0 != main_~tmp~7; {835#(not (= 0 ~systemActive~0))} is VALID [2020-07-28 18:59:46,598 INFO L280 TraceCheckUtils]: 5: Hoare triple {835#(not (= 0 ~systemActive~0))} ~methAndRunningLastTime~0 := 0; {835#(not (= 0 ~systemActive~0))} is VALID [2020-07-28 18:59:46,598 INFO L280 TraceCheckUtils]: 6: Hoare triple {835#(not (= 0 ~systemActive~0))} havoc test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {835#(not (= 0 ~systemActive~0))} is VALID [2020-07-28 18:59:46,600 INFO L280 TraceCheckUtils]: 7: Hoare triple {835#(not (= 0 ~systemActive~0))} assume !false; {835#(not (= 0 ~systemActive~0))} is VALID [2020-07-28 18:59:46,600 INFO L280 TraceCheckUtils]: 8: Hoare triple {835#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0 < 4; {835#(not (= 0 ~systemActive~0))} is VALID [2020-07-28 18:59:46,601 INFO L280 TraceCheckUtils]: 9: Hoare triple {835#(not (= 0 ~systemActive~0))} assume -2147483648 <= test_#t~nondet54 && test_#t~nondet54 <= 2147483647;test_~tmp~5 := test_#t~nondet54;havoc test_#t~nondet54; {835#(not (= 0 ~systemActive~0))} is VALID [2020-07-28 18:59:46,602 INFO L280 TraceCheckUtils]: 10: Hoare triple {835#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~5); {835#(not (= 0 ~systemActive~0))} is VALID [2020-07-28 18:59:46,603 INFO L280 TraceCheckUtils]: 11: Hoare triple {835#(not (= 0 ~systemActive~0))} assume -2147483648 <= test_#t~nondet55 && test_#t~nondet55 <= 2147483647;test_~tmp___0~1 := test_#t~nondet55;havoc test_#t~nondet55; {835#(not (= 0 ~systemActive~0))} is VALID [2020-07-28 18:59:46,603 INFO L280 TraceCheckUtils]: 12: Hoare triple {835#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~1); {835#(not (= 0 ~systemActive~0))} is VALID [2020-07-28 18:59:46,604 INFO L280 TraceCheckUtils]: 13: Hoare triple {835#(not (= 0 ~systemActive~0))} assume -2147483648 <= test_#t~nondet56 && test_#t~nondet56 <= 2147483647;test_~tmp___2~0 := test_#t~nondet56;havoc test_#t~nondet56; {835#(not (= 0 ~systemActive~0))} is VALID [2020-07-28 18:59:46,605 INFO L280 TraceCheckUtils]: 14: Hoare triple {835#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0; {835#(not (= 0 ~systemActive~0))} is VALID [2020-07-28 18:59:46,609 INFO L280 TraceCheckUtils]: 15: Hoare triple {835#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {835#(not (= 0 ~systemActive~0))} is VALID [2020-07-28 18:59:46,610 INFO L280 TraceCheckUtils]: 16: Hoare triple {835#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {831#false} is VALID [2020-07-28 18:59:46,611 INFO L280 TraceCheckUtils]: 17: Hoare triple {831#false} havoc __utac_acc__Specification2_spec__2_#t~ret58, __utac_acc__Specification2_spec__2_#t~ret59, __utac_acc__Specification2_spec__2_~tmp~6, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~6;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;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 18:59:46,611 INFO L280 TraceCheckUtils]: 18: Hoare triple {831#false} __utac_acc__Specification2_spec__2_#t~ret58 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification2_spec__2_#t~ret58 && __utac_acc__Specification2_spec__2_#t~ret58 <= 2147483647;__utac_acc__Specification2_spec__2_~tmp~6 := __utac_acc__Specification2_spec__2_#t~ret58;havoc __utac_acc__Specification2_spec__2_#t~ret58; {831#false} is VALID [2020-07-28 18:59:46,612 INFO L280 TraceCheckUtils]: 19: Hoare triple {831#false} assume 0 != __utac_acc__Specification2_spec__2_~tmp~6;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; {831#false} is VALID [2020-07-28 18:59:46,612 INFO L280 TraceCheckUtils]: 20: Hoare triple {831#false} __utac_acc__Specification2_spec__2_#t~ret59 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification2_spec__2_#t~ret59 && __utac_acc__Specification2_spec__2_#t~ret59 <= 2147483647;__utac_acc__Specification2_spec__2_~tmp___0~2 := __utac_acc__Specification2_spec__2_#t~ret59;havoc __utac_acc__Specification2_spec__2_#t~ret59; {831#false} is VALID [2020-07-28 18:59:46,612 INFO L280 TraceCheckUtils]: 21: Hoare triple {831#false} assume 0 != __utac_acc__Specification2_spec__2_~tmp___0~2; {831#false} is VALID [2020-07-28 18:59:46,612 INFO L280 TraceCheckUtils]: 22: Hoare triple {831#false} assume 0 != ~methAndRunningLastTime~0; {831#false} is VALID [2020-07-28 18:59:46,613 INFO L280 TraceCheckUtils]: 23: Hoare triple {831#false} assume !false; {831#false} is VALID [2020-07-28 18:59:46,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:59:46,616 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073366093] [2020-07-28 18:59:46,617 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:59:46,617 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-28 18:59:46,617 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733426628] [2020-07-28 18:59:46,618 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2020-07-28 18:59:46,619 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:59:46,620 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-28 18:59:46,654 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 18:59:46,654 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-28 18:59:46,654 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:59:46,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-28 18:59:46,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-28 18:59:46,655 INFO L87 Difference]: Start difference. First operand 38 states and 54 transitions. Second operand 6 states. [2020-07-28 18:59:47,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:59:47,294 INFO L93 Difference]: Finished difference Result 124 states and 184 transitions. [2020-07-28 18:59:47,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-28 18:59:47,295 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2020-07-28 18:59:47,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:59:47,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 18:59:47,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 184 transitions. [2020-07-28 18:59:47,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 18:59:47,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 184 transitions. [2020-07-28 18:59:47,302 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 184 transitions. [2020-07-28 18:59:47,513 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 184 edges. 184 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:59:47,519 INFO L225 Difference]: With dead ends: 124 [2020-07-28 18:59:47,520 INFO L226 Difference]: Without dead ends: 93 [2020-07-28 18:59:47,520 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-28 18:59:47,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-07-28 18:59:47,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 58. [2020-07-28 18:59:47,574 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:59:47,575 INFO L82 GeneralOperation]: Start isEquivalent. First operand 93 states. Second operand 58 states. [2020-07-28 18:59:47,575 INFO L74 IsIncluded]: Start isIncluded. First operand 93 states. Second operand 58 states. [2020-07-28 18:59:47,575 INFO L87 Difference]: Start difference. First operand 93 states. Second operand 58 states. [2020-07-28 18:59:47,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:59:47,585 INFO L93 Difference]: Finished difference Result 93 states and 135 transitions. [2020-07-28 18:59:47,585 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 135 transitions. [2020-07-28 18:59:47,586 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:59:47,589 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:59:47,589 INFO L74 IsIncluded]: Start isIncluded. First operand 58 states. Second operand 93 states. [2020-07-28 18:59:47,589 INFO L87 Difference]: Start difference. First operand 58 states. Second operand 93 states. [2020-07-28 18:59:47,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:59:47,595 INFO L93 Difference]: Finished difference Result 93 states and 135 transitions. [2020-07-28 18:59:47,595 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 135 transitions. [2020-07-28 18:59:47,596 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:59:47,599 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:59:47,599 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:59:47,599 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:59:47,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-07-28 18:59:47,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 85 transitions. [2020-07-28 18:59:47,602 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 85 transitions. Word has length 24 [2020-07-28 18:59:47,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:59:47,602 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 85 transitions. [2020-07-28 18:59:47,602 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-28 18:59:47,603 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 85 transitions. [2020-07-28 18:59:47,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-28 18:59:47,603 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:59:47,604 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 18:59:47,604 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-28 18:59:47,604 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:59:47,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:59:47,605 INFO L82 PathProgramCache]: Analyzing trace with hash 343514617, now seen corresponding path program 1 times [2020-07-28 18:59:47,605 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:59:47,606 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461887852] [2020-07-28 18:59:47,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:59:47,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:59:47,701 INFO L280 TraceCheckUtils]: 0: Hoare triple {1279#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(13);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string40.base, #t~string40.offset, 1);call write~init~int(110, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(102, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(102, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 3 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string44.base, #t~string44.offset, 1);call write~init~int(80, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(117, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(109, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(112, #t~string44.base, 4 + #t~string44.offset, 1);call write~init~int(58, #t~string44.base, 5 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 6 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string50.base, #t~string50.offset, 1);call write~init~int(32, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 2 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string52.base, #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 1 + #t~string52.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(77, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(101, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(116, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(104, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string67.base, #t~string67.offset, 1);call write~init~int(82, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(73, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(84, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 4 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(75, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 1 + #t~string71.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {1281#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:47,702 INFO L280 TraceCheckUtils]: 1: Hoare triple {1281#(= 0 ~pumpRunning~0)} havoc main_#res;havoc main_#t~ret61, main_~retValue_acc~8, main_~tmp~7;havoc main_~retValue_acc~8;havoc main_~tmp~7; {1281#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:47,703 INFO L280 TraceCheckUtils]: 2: Hoare triple {1281#(= 0 ~pumpRunning~0)} havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; {1281#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:47,704 INFO L280 TraceCheckUtils]: 3: Hoare triple {1281#(= 0 ~pumpRunning~0)} main_#t~ret61 := valid_product_#res;assume -2147483648 <= main_#t~ret61 && main_#t~ret61 <= 2147483647;main_~tmp~7 := main_#t~ret61;havoc main_#t~ret61; {1281#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:47,704 INFO L280 TraceCheckUtils]: 4: Hoare triple {1281#(= 0 ~pumpRunning~0)} assume 0 != main_~tmp~7; {1281#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:47,705 INFO L280 TraceCheckUtils]: 5: Hoare triple {1281#(= 0 ~pumpRunning~0)} ~methAndRunningLastTime~0 := 0; {1281#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:47,705 INFO L280 TraceCheckUtils]: 6: Hoare triple {1281#(= 0 ~pumpRunning~0)} havoc test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {1281#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:47,706 INFO L280 TraceCheckUtils]: 7: Hoare triple {1281#(= 0 ~pumpRunning~0)} assume !false; {1281#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:47,707 INFO L280 TraceCheckUtils]: 8: Hoare triple {1281#(= 0 ~pumpRunning~0)} assume test_~splverifierCounter~0 < 4; {1281#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:47,707 INFO L280 TraceCheckUtils]: 9: Hoare triple {1281#(= 0 ~pumpRunning~0)} assume -2147483648 <= test_#t~nondet54 && test_#t~nondet54 <= 2147483647;test_~tmp~5 := test_#t~nondet54;havoc test_#t~nondet54; {1281#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:47,708 INFO L280 TraceCheckUtils]: 10: Hoare triple {1281#(= 0 ~pumpRunning~0)} assume !(0 != test_~tmp~5); {1281#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:47,709 INFO L280 TraceCheckUtils]: 11: Hoare triple {1281#(= 0 ~pumpRunning~0)} assume -2147483648 <= test_#t~nondet55 && test_#t~nondet55 <= 2147483647;test_~tmp___0~1 := test_#t~nondet55;havoc test_#t~nondet55; {1281#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:47,709 INFO L280 TraceCheckUtils]: 12: Hoare triple {1281#(= 0 ~pumpRunning~0)} assume !(0 != test_~tmp___0~1); {1281#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:47,710 INFO L280 TraceCheckUtils]: 13: Hoare triple {1281#(= 0 ~pumpRunning~0)} assume -2147483648 <= test_#t~nondet56 && test_#t~nondet56 <= 2147483647;test_~tmp___2~0 := test_#t~nondet56;havoc test_#t~nondet56; {1281#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:47,710 INFO L280 TraceCheckUtils]: 14: Hoare triple {1281#(= 0 ~pumpRunning~0)} assume 0 != test_~tmp___2~0; {1281#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:47,711 INFO L280 TraceCheckUtils]: 15: Hoare triple {1281#(= 0 ~pumpRunning~0)} assume !(0 != ~pumpRunning~0); {1281#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:47,712 INFO L280 TraceCheckUtils]: 16: Hoare triple {1281#(= 0 ~pumpRunning~0)} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret35, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; {1281#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:47,712 INFO L280 TraceCheckUtils]: 17: Hoare triple {1281#(= 0 ~pumpRunning~0)} assume !(0 == ~pumpRunning~0); {1280#false} is VALID [2020-07-28 18:59:47,713 INFO L280 TraceCheckUtils]: 18: Hoare triple {1280#false} havoc __utac_acc__Specification2_spec__2_#t~ret58, __utac_acc__Specification2_spec__2_#t~ret59, __utac_acc__Specification2_spec__2_~tmp~6, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~6;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;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; {1280#false} is VALID [2020-07-28 18:59:47,713 INFO L280 TraceCheckUtils]: 19: Hoare triple {1280#false} __utac_acc__Specification2_spec__2_#t~ret58 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification2_spec__2_#t~ret58 && __utac_acc__Specification2_spec__2_#t~ret58 <= 2147483647;__utac_acc__Specification2_spec__2_~tmp~6 := __utac_acc__Specification2_spec__2_#t~ret58;havoc __utac_acc__Specification2_spec__2_#t~ret58; {1280#false} is VALID [2020-07-28 18:59:47,713 INFO L280 TraceCheckUtils]: 20: Hoare triple {1280#false} assume 0 != __utac_acc__Specification2_spec__2_~tmp~6;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; {1280#false} is VALID [2020-07-28 18:59:47,713 INFO L280 TraceCheckUtils]: 21: Hoare triple {1280#false} __utac_acc__Specification2_spec__2_#t~ret59 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification2_spec__2_#t~ret59 && __utac_acc__Specification2_spec__2_#t~ret59 <= 2147483647;__utac_acc__Specification2_spec__2_~tmp___0~2 := __utac_acc__Specification2_spec__2_#t~ret59;havoc __utac_acc__Specification2_spec__2_#t~ret59; {1280#false} is VALID [2020-07-28 18:59:47,714 INFO L280 TraceCheckUtils]: 22: Hoare triple {1280#false} assume 0 != __utac_acc__Specification2_spec__2_~tmp___0~2; {1280#false} is VALID [2020-07-28 18:59:47,714 INFO L280 TraceCheckUtils]: 23: Hoare triple {1280#false} assume 0 != ~methAndRunningLastTime~0; {1280#false} is VALID [2020-07-28 18:59:47,714 INFO L280 TraceCheckUtils]: 24: Hoare triple {1280#false} assume !false; {1280#false} is VALID [2020-07-28 18:59:47,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:59:47,716 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461887852] [2020-07-28 18:59:47,716 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:59:47,716 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 18:59:47,717 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212118681] [2020-07-28 18:59:47,717 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-07-28 18:59:47,717 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:59:47,717 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 18:59:47,747 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:59:47,748 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 18:59:47,748 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:59:47,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 18:59:47,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 18:59:47,748 INFO L87 Difference]: Start difference. First operand 58 states and 85 transitions. Second operand 3 states. [2020-07-28 18:59:47,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:59:47,951 INFO L93 Difference]: Finished difference Result 131 states and 195 transitions. [2020-07-28 18:59:47,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 18:59:47,951 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-07-28 18:59:47,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:59:47,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 18:59:47,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 135 transitions. [2020-07-28 18:59:47,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 18:59:47,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 135 transitions. [2020-07-28 18:59:47,957 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 135 transitions. [2020-07-28 18:59:48,113 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 135 edges. 135 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:59:48,116 INFO L225 Difference]: With dead ends: 131 [2020-07-28 18:59:48,116 INFO L226 Difference]: Without dead ends: 80 [2020-07-28 18:59:48,117 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 18:59:48,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-07-28 18:59:48,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 78. [2020-07-28 18:59:48,222 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:59:48,222 INFO L82 GeneralOperation]: Start isEquivalent. First operand 80 states. Second operand 78 states. [2020-07-28 18:59:48,222 INFO L74 IsIncluded]: Start isIncluded. First operand 80 states. Second operand 78 states. [2020-07-28 18:59:48,222 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 78 states. [2020-07-28 18:59:48,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:59:48,226 INFO L93 Difference]: Finished difference Result 80 states and 113 transitions. [2020-07-28 18:59:48,226 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 113 transitions. [2020-07-28 18:59:48,226 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:59:48,226 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:59:48,226 INFO L74 IsIncluded]: Start isIncluded. First operand 78 states. Second operand 80 states. [2020-07-28 18:59:48,227 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 80 states. [2020-07-28 18:59:48,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:59:48,230 INFO L93 Difference]: Finished difference Result 80 states and 113 transitions. [2020-07-28 18:59:48,230 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 113 transitions. [2020-07-28 18:59:48,231 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:59:48,231 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:59:48,231 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:59:48,232 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:59:48,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-07-28 18:59:48,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 112 transitions. [2020-07-28 18:59:48,235 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 112 transitions. Word has length 25 [2020-07-28 18:59:48,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:59:48,236 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 112 transitions. [2020-07-28 18:59:48,236 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 18:59:48,236 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 112 transitions. [2020-07-28 18:59:48,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-07-28 18:59:48,237 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:59:48,237 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 18:59:48,237 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-28 18:59:48,238 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:59:48,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:59:48,238 INFO L82 PathProgramCache]: Analyzing trace with hash -1750340408, now seen corresponding path program 1 times [2020-07-28 18:59:48,238 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:59:48,239 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329141623] [2020-07-28 18:59:48,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:59:48,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:59:48,311 INFO L280 TraceCheckUtils]: 0: Hoare triple {1734#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(13);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string40.base, #t~string40.offset, 1);call write~init~int(110, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(102, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(102, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 3 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string44.base, #t~string44.offset, 1);call write~init~int(80, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(117, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(109, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(112, #t~string44.base, 4 + #t~string44.offset, 1);call write~init~int(58, #t~string44.base, 5 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 6 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string50.base, #t~string50.offset, 1);call write~init~int(32, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 2 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string52.base, #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 1 + #t~string52.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(77, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(101, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(116, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(104, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string67.base, #t~string67.offset, 1);call write~init~int(82, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(73, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(84, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 4 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(75, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 1 + #t~string71.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {1736#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:48,312 INFO L280 TraceCheckUtils]: 1: Hoare triple {1736#(= 0 ~pumpRunning~0)} havoc main_#res;havoc main_#t~ret61, main_~retValue_acc~8, main_~tmp~7;havoc main_~retValue_acc~8;havoc main_~tmp~7; {1736#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:48,312 INFO L280 TraceCheckUtils]: 2: Hoare triple {1736#(= 0 ~pumpRunning~0)} havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; {1736#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:48,313 INFO L280 TraceCheckUtils]: 3: Hoare triple {1736#(= 0 ~pumpRunning~0)} main_#t~ret61 := valid_product_#res;assume -2147483648 <= main_#t~ret61 && main_#t~ret61 <= 2147483647;main_~tmp~7 := main_#t~ret61;havoc main_#t~ret61; {1736#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:48,314 INFO L280 TraceCheckUtils]: 4: Hoare triple {1736#(= 0 ~pumpRunning~0)} assume 0 != main_~tmp~7; {1736#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:48,314 INFO L280 TraceCheckUtils]: 5: Hoare triple {1736#(= 0 ~pumpRunning~0)} ~methAndRunningLastTime~0 := 0; {1736#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:48,315 INFO L280 TraceCheckUtils]: 6: Hoare triple {1736#(= 0 ~pumpRunning~0)} havoc test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {1736#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:48,316 INFO L280 TraceCheckUtils]: 7: Hoare triple {1736#(= 0 ~pumpRunning~0)} assume !false; {1736#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:48,316 INFO L280 TraceCheckUtils]: 8: Hoare triple {1736#(= 0 ~pumpRunning~0)} assume test_~splverifierCounter~0 < 4; {1736#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:48,317 INFO L280 TraceCheckUtils]: 9: Hoare triple {1736#(= 0 ~pumpRunning~0)} assume -2147483648 <= test_#t~nondet54 && test_#t~nondet54 <= 2147483647;test_~tmp~5 := test_#t~nondet54;havoc test_#t~nondet54; {1736#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:48,318 INFO L280 TraceCheckUtils]: 10: Hoare triple {1736#(= 0 ~pumpRunning~0)} assume !(0 != test_~tmp~5); {1736#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:48,319 INFO L280 TraceCheckUtils]: 11: Hoare triple {1736#(= 0 ~pumpRunning~0)} assume -2147483648 <= test_#t~nondet55 && test_#t~nondet55 <= 2147483647;test_~tmp___0~1 := test_#t~nondet55;havoc test_#t~nondet55; {1736#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:48,319 INFO L280 TraceCheckUtils]: 12: Hoare triple {1736#(= 0 ~pumpRunning~0)} assume !(0 != test_~tmp___0~1); {1736#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:48,320 INFO L280 TraceCheckUtils]: 13: Hoare triple {1736#(= 0 ~pumpRunning~0)} assume -2147483648 <= test_#t~nondet56 && test_#t~nondet56 <= 2147483647;test_~tmp___2~0 := test_#t~nondet56;havoc test_#t~nondet56; {1736#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:48,321 INFO L280 TraceCheckUtils]: 14: Hoare triple {1736#(= 0 ~pumpRunning~0)} assume !(0 != test_~tmp___2~0);assume -2147483648 <= test_#t~nondet57 && test_#t~nondet57 <= 2147483647;test_~tmp___1~0 := test_#t~nondet57;havoc test_#t~nondet57; {1736#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:48,321 INFO L280 TraceCheckUtils]: 15: Hoare triple {1736#(= 0 ~pumpRunning~0)} assume 0 != test_~tmp___1~0; {1736#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:48,322 INFO L280 TraceCheckUtils]: 16: Hoare triple {1736#(= 0 ~pumpRunning~0)} assume !(0 != ~pumpRunning~0); {1736#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:48,322 INFO L280 TraceCheckUtils]: 17: Hoare triple {1736#(= 0 ~pumpRunning~0)} ~systemActive~0 := 0; {1736#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:48,323 INFO L280 TraceCheckUtils]: 18: Hoare triple {1736#(= 0 ~pumpRunning~0)} assume !(0 != ~pumpRunning~0); {1736#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:48,324 INFO L280 TraceCheckUtils]: 19: Hoare triple {1736#(= 0 ~pumpRunning~0)} assume !(0 != ~systemActive~0); {1736#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:48,324 INFO L280 TraceCheckUtils]: 20: Hoare triple {1736#(= 0 ~pumpRunning~0)} havoc __utac_acc__Specification2_spec__2_#t~ret58, __utac_acc__Specification2_spec__2_#t~ret59, __utac_acc__Specification2_spec__2_~tmp~6, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~6;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;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; {1736#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:48,325 INFO L280 TraceCheckUtils]: 21: Hoare triple {1736#(= 0 ~pumpRunning~0)} __utac_acc__Specification2_spec__2_#t~ret58 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification2_spec__2_#t~ret58 && __utac_acc__Specification2_spec__2_#t~ret58 <= 2147483647;__utac_acc__Specification2_spec__2_~tmp~6 := __utac_acc__Specification2_spec__2_#t~ret58;havoc __utac_acc__Specification2_spec__2_#t~ret58; {1736#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:48,326 INFO L280 TraceCheckUtils]: 22: Hoare triple {1736#(= 0 ~pumpRunning~0)} assume 0 != __utac_acc__Specification2_spec__2_~tmp~6;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; {1737#(= 0 |ULTIMATE.start_isPumpRunning_#res|)} is VALID [2020-07-28 18:59:48,327 INFO L280 TraceCheckUtils]: 23: Hoare triple {1737#(= 0 |ULTIMATE.start_isPumpRunning_#res|)} __utac_acc__Specification2_spec__2_#t~ret59 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification2_spec__2_#t~ret59 && __utac_acc__Specification2_spec__2_#t~ret59 <= 2147483647;__utac_acc__Specification2_spec__2_~tmp___0~2 := __utac_acc__Specification2_spec__2_#t~ret59;havoc __utac_acc__Specification2_spec__2_#t~ret59; {1738#(= 0 ULTIMATE.start___utac_acc__Specification2_spec__2_~tmp___0~2)} is VALID [2020-07-28 18:59:48,327 INFO L280 TraceCheckUtils]: 24: Hoare triple {1738#(= 0 ULTIMATE.start___utac_acc__Specification2_spec__2_~tmp___0~2)} assume 0 != __utac_acc__Specification2_spec__2_~tmp___0~2; {1735#false} is VALID [2020-07-28 18:59:48,328 INFO L280 TraceCheckUtils]: 25: Hoare triple {1735#false} assume 0 != ~methAndRunningLastTime~0; {1735#false} is VALID [2020-07-28 18:59:48,328 INFO L280 TraceCheckUtils]: 26: Hoare triple {1735#false} assume !false; {1735#false} is VALID [2020-07-28 18:59:48,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:59:48,330 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329141623] [2020-07-28 18:59:48,330 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:59:48,330 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 18:59:48,330 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091761170] [2020-07-28 18:59:48,331 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-07-28 18:59:48,331 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:59:48,331 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 18:59:48,366 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:59:48,367 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 18:59:48,367 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:59:48,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 18:59:48,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-28 18:59:48,368 INFO L87 Difference]: Start difference. First operand 78 states and 112 transitions. Second operand 5 states. [2020-07-28 18:59:49,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:59:49,268 INFO L93 Difference]: Finished difference Result 275 states and 400 transitions. [2020-07-28 18:59:49,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-28 18:59:49,268 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-07-28 18:59:49,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:59:49,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 18:59:49,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 271 transitions. [2020-07-28 18:59:49,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 18:59:49,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 271 transitions. [2020-07-28 18:59:49,279 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 271 transitions. [2020-07-28 18:59:49,609 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 271 edges. 271 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:59:49,615 INFO L225 Difference]: With dead ends: 275 [2020-07-28 18:59:49,615 INFO L226 Difference]: Without dead ends: 204 [2020-07-28 18:59:49,616 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-28 18:59:49,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2020-07-28 18:59:49,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 76. [2020-07-28 18:59:49,710 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:59:49,710 INFO L82 GeneralOperation]: Start isEquivalent. First operand 204 states. Second operand 76 states. [2020-07-28 18:59:49,710 INFO L74 IsIncluded]: Start isIncluded. First operand 204 states. Second operand 76 states. [2020-07-28 18:59:49,711 INFO L87 Difference]: Start difference. First operand 204 states. Second operand 76 states. [2020-07-28 18:59:49,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:59:49,719 INFO L93 Difference]: Finished difference Result 204 states and 293 transitions. [2020-07-28 18:59:49,719 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 293 transitions. [2020-07-28 18:59:49,719 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:59:49,720 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:59:49,720 INFO L74 IsIncluded]: Start isIncluded. First operand 76 states. Second operand 204 states. [2020-07-28 18:59:49,720 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 204 states. [2020-07-28 18:59:49,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:59:49,728 INFO L93 Difference]: Finished difference Result 204 states and 293 transitions. [2020-07-28 18:59:49,728 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 293 transitions. [2020-07-28 18:59:49,729 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:59:49,729 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:59:49,729 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:59:49,730 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:59:49,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-07-28 18:59:49,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 106 transitions. [2020-07-28 18:59:49,733 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 106 transitions. Word has length 27 [2020-07-28 18:59:49,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:59:49,733 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 106 transitions. [2020-07-28 18:59:49,733 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 18:59:49,733 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 106 transitions. [2020-07-28 18:59:49,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-07-28 18:59:49,734 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:59:49,734 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 18:59:49,735 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-28 18:59:49,735 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:59:49,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:59:49,736 INFO L82 PathProgramCache]: Analyzing trace with hash 561257864, now seen corresponding path program 1 times [2020-07-28 18:59:49,736 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:59:49,736 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342274415] [2020-07-28 18:59:49,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:59:49,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:59:49,816 INFO L280 TraceCheckUtils]: 0: Hoare triple {2651#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(13);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string40.base, #t~string40.offset, 1);call write~init~int(110, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(102, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(102, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 3 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string44.base, #t~string44.offset, 1);call write~init~int(80, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(117, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(109, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(112, #t~string44.base, 4 + #t~string44.offset, 1);call write~init~int(58, #t~string44.base, 5 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 6 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string50.base, #t~string50.offset, 1);call write~init~int(32, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 2 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string52.base, #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 1 + #t~string52.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(77, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(101, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(116, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(104, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string67.base, #t~string67.offset, 1);call write~init~int(82, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(73, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(84, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 4 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(75, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 1 + #t~string71.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {2651#true} is VALID [2020-07-28 18:59:49,816 INFO L280 TraceCheckUtils]: 1: Hoare triple {2651#true} havoc main_#res;havoc main_#t~ret61, main_~retValue_acc~8, main_~tmp~7;havoc main_~retValue_acc~8;havoc main_~tmp~7; {2651#true} is VALID [2020-07-28 18:59:49,816 INFO L280 TraceCheckUtils]: 2: Hoare triple {2651#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; {2651#true} is VALID [2020-07-28 18:59:49,817 INFO L280 TraceCheckUtils]: 3: Hoare triple {2651#true} main_#t~ret61 := valid_product_#res;assume -2147483648 <= main_#t~ret61 && main_#t~ret61 <= 2147483647;main_~tmp~7 := main_#t~ret61;havoc main_#t~ret61; {2651#true} is VALID [2020-07-28 18:59:49,817 INFO L280 TraceCheckUtils]: 4: Hoare triple {2651#true} assume 0 != main_~tmp~7; {2651#true} is VALID [2020-07-28 18:59:49,817 INFO L280 TraceCheckUtils]: 5: Hoare triple {2651#true} ~methAndRunningLastTime~0 := 0; {2651#true} is VALID [2020-07-28 18:59:49,818 INFO L280 TraceCheckUtils]: 6: Hoare triple {2651#true} havoc test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {2651#true} is VALID [2020-07-28 18:59:49,818 INFO L280 TraceCheckUtils]: 7: Hoare triple {2651#true} assume !false; {2651#true} is VALID [2020-07-28 18:59:49,818 INFO L280 TraceCheckUtils]: 8: Hoare triple {2651#true} assume test_~splverifierCounter~0 < 4; {2651#true} is VALID [2020-07-28 18:59:49,818 INFO L280 TraceCheckUtils]: 9: Hoare triple {2651#true} assume -2147483648 <= test_#t~nondet54 && test_#t~nondet54 <= 2147483647;test_~tmp~5 := test_#t~nondet54;havoc test_#t~nondet54; {2651#true} is VALID [2020-07-28 18:59:49,819 INFO L280 TraceCheckUtils]: 10: Hoare triple {2651#true} assume !(0 != test_~tmp~5); {2651#true} is VALID [2020-07-28 18:59:49,819 INFO L280 TraceCheckUtils]: 11: Hoare triple {2651#true} assume -2147483648 <= test_#t~nondet55 && test_#t~nondet55 <= 2147483647;test_~tmp___0~1 := test_#t~nondet55;havoc test_#t~nondet55; {2651#true} is VALID [2020-07-28 18:59:49,819 INFO L280 TraceCheckUtils]: 12: Hoare triple {2651#true} assume !(0 != test_~tmp___0~1); {2651#true} is VALID [2020-07-28 18:59:49,824 INFO L280 TraceCheckUtils]: 13: Hoare triple {2651#true} assume -2147483648 <= test_#t~nondet56 && test_#t~nondet56 <= 2147483647;test_~tmp___2~0 := test_#t~nondet56;havoc test_#t~nondet56; {2651#true} is VALID [2020-07-28 18:59:49,825 INFO L280 TraceCheckUtils]: 14: Hoare triple {2651#true} assume 0 != test_~tmp___2~0; {2651#true} is VALID [2020-07-28 18:59:49,825 INFO L280 TraceCheckUtils]: 15: Hoare triple {2651#true} assume !(0 != ~pumpRunning~0); {2651#true} is VALID [2020-07-28 18:59:49,825 INFO L280 TraceCheckUtils]: 16: Hoare triple {2651#true} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret35, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; {2651#true} is VALID [2020-07-28 18:59:49,825 INFO L280 TraceCheckUtils]: 17: Hoare triple {2651#true} assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret53, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; {2651#true} is VALID [2020-07-28 18:59:49,826 INFO L280 TraceCheckUtils]: 18: Hoare triple {2651#true} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; {2651#true} is VALID [2020-07-28 18:59:49,826 INFO L280 TraceCheckUtils]: 19: Hoare triple {2651#true} isHighWaterLevel_#t~ret53 := isHighWaterSensorDry_#res;assume -2147483648 <= isHighWaterLevel_#t~ret53 && isHighWaterLevel_#t~ret53 <= 2147483647;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret53;havoc isHighWaterLevel_#t~ret53; {2651#true} is VALID [2020-07-28 18:59:49,833 INFO L280 TraceCheckUtils]: 20: Hoare triple {2651#true} assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~0 := 0; {2653#(= 0 ULTIMATE.start_isHighWaterLevel_~tmp___0~0)} is VALID [2020-07-28 18:59:49,834 INFO L280 TraceCheckUtils]: 21: Hoare triple {2653#(= 0 ULTIMATE.start_isHighWaterLevel_~tmp___0~0)} isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; {2654#(= 0 |ULTIMATE.start_isHighWaterLevel_#res|)} is VALID [2020-07-28 18:59:49,835 INFO L280 TraceCheckUtils]: 22: Hoare triple {2654#(= 0 |ULTIMATE.start_isHighWaterLevel_#res|)} processEnvironment_#t~ret35 := isHighWaterLevel_#res;assume -2147483648 <= processEnvironment_#t~ret35 && processEnvironment_#t~ret35 <= 2147483647;processEnvironment_~tmp~3 := processEnvironment_#t~ret35;havoc processEnvironment_#t~ret35; {2655#(= 0 ULTIMATE.start_processEnvironment_~tmp~3)} is VALID [2020-07-28 18:59:49,835 INFO L280 TraceCheckUtils]: 23: Hoare triple {2655#(= 0 ULTIMATE.start_processEnvironment_~tmp~3)} assume 0 != processEnvironment_~tmp~3;~pumpRunning~0 := 1; {2652#false} is VALID [2020-07-28 18:59:49,836 INFO L280 TraceCheckUtils]: 24: Hoare triple {2652#false} havoc __utac_acc__Specification2_spec__2_#t~ret58, __utac_acc__Specification2_spec__2_#t~ret59, __utac_acc__Specification2_spec__2_~tmp~6, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~6;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;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; {2652#false} is VALID [2020-07-28 18:59:49,836 INFO L280 TraceCheckUtils]: 25: Hoare triple {2652#false} __utac_acc__Specification2_spec__2_#t~ret58 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification2_spec__2_#t~ret58 && __utac_acc__Specification2_spec__2_#t~ret58 <= 2147483647;__utac_acc__Specification2_spec__2_~tmp~6 := __utac_acc__Specification2_spec__2_#t~ret58;havoc __utac_acc__Specification2_spec__2_#t~ret58; {2652#false} is VALID [2020-07-28 18:59:49,836 INFO L280 TraceCheckUtils]: 26: Hoare triple {2652#false} assume 0 != __utac_acc__Specification2_spec__2_~tmp~6;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; {2652#false} is VALID [2020-07-28 18:59:49,836 INFO L280 TraceCheckUtils]: 27: Hoare triple {2652#false} __utac_acc__Specification2_spec__2_#t~ret59 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification2_spec__2_#t~ret59 && __utac_acc__Specification2_spec__2_#t~ret59 <= 2147483647;__utac_acc__Specification2_spec__2_~tmp___0~2 := __utac_acc__Specification2_spec__2_#t~ret59;havoc __utac_acc__Specification2_spec__2_#t~ret59; {2652#false} is VALID [2020-07-28 18:59:49,836 INFO L280 TraceCheckUtils]: 28: Hoare triple {2652#false} assume 0 != __utac_acc__Specification2_spec__2_~tmp___0~2; {2652#false} is VALID [2020-07-28 18:59:49,836 INFO L280 TraceCheckUtils]: 29: Hoare triple {2652#false} assume 0 != ~methAndRunningLastTime~0; {2652#false} is VALID [2020-07-28 18:59:49,837 INFO L280 TraceCheckUtils]: 30: Hoare triple {2652#false} assume !false; {2652#false} is VALID [2020-07-28 18:59:49,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:59:49,838 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342274415] [2020-07-28 18:59:49,838 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:59:49,838 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-28 18:59:49,838 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345882552] [2020-07-28 18:59:49,839 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-07-28 18:59:49,839 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:59:49,839 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 18:59:49,888 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 31 edges. 31 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:59:49,888 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 18:59:49,888 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:59:49,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 18:59:49,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-28 18:59:49,889 INFO L87 Difference]: Start difference. First operand 76 states and 106 transitions. Second operand 5 states. [2020-07-28 18:59:50,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:59:50,514 INFO L93 Difference]: Finished difference Result 220 states and 310 transitions. [2020-07-28 18:59:50,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-28 18:59:50,515 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-07-28 18:59:50,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:59:50,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 18:59:50,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 162 transitions. [2020-07-28 18:59:50,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 18:59:50,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 162 transitions. [2020-07-28 18:59:50,523 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 162 transitions. [2020-07-28 18:59:50,686 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 162 edges. 162 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:59:50,690 INFO L225 Difference]: With dead ends: 220 [2020-07-28 18:59:50,690 INFO L226 Difference]: Without dead ends: 151 [2020-07-28 18:59:50,692 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-28 18:59:50,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2020-07-28 18:59:50,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 79. [2020-07-28 18:59:50,837 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:59:50,837 INFO L82 GeneralOperation]: Start isEquivalent. First operand 151 states. Second operand 79 states. [2020-07-28 18:59:50,837 INFO L74 IsIncluded]: Start isIncluded. First operand 151 states. Second operand 79 states. [2020-07-28 18:59:50,838 INFO L87 Difference]: Start difference. First operand 151 states. Second operand 79 states. [2020-07-28 18:59:50,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:59:50,843 INFO L93 Difference]: Finished difference Result 151 states and 210 transitions. [2020-07-28 18:59:50,843 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 210 transitions. [2020-07-28 18:59:50,843 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:59:50,844 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:59:50,844 INFO L74 IsIncluded]: Start isIncluded. First operand 79 states. Second operand 151 states. [2020-07-28 18:59:50,844 INFO L87 Difference]: Start difference. First operand 79 states. Second operand 151 states. [2020-07-28 18:59:50,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:59:50,849 INFO L93 Difference]: Finished difference Result 151 states and 210 transitions. [2020-07-28 18:59:50,849 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 210 transitions. [2020-07-28 18:59:50,850 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:59:50,850 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:59:50,850 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:59:50,850 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:59:50,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-07-28 18:59:50,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 109 transitions. [2020-07-28 18:59:50,853 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 109 transitions. Word has length 31 [2020-07-28 18:59:50,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:59:50,853 INFO L479 AbstractCegarLoop]: Abstraction has 79 states and 109 transitions. [2020-07-28 18:59:50,853 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 18:59:50,854 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 109 transitions. [2020-07-28 18:59:50,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-07-28 18:59:50,854 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:59:50,855 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 18:59:50,855 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-28 18:59:50,855 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:59:50,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:59:50,856 INFO L82 PathProgramCache]: Analyzing trace with hash 1262322442, now seen corresponding path program 1 times [2020-07-28 18:59:50,856 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:59:50,856 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245042576] [2020-07-28 18:59:50,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:59:50,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:59:50,943 INFO L280 TraceCheckUtils]: 0: Hoare triple {3387#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(13);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string40.base, #t~string40.offset, 1);call write~init~int(110, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(102, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(102, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 3 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string44.base, #t~string44.offset, 1);call write~init~int(80, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(117, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(109, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(112, #t~string44.base, 4 + #t~string44.offset, 1);call write~init~int(58, #t~string44.base, 5 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 6 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string50.base, #t~string50.offset, 1);call write~init~int(32, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 2 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string52.base, #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 1 + #t~string52.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(77, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(101, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(116, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(104, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string67.base, #t~string67.offset, 1);call write~init~int(82, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(73, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(84, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 4 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(75, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 1 + #t~string71.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {3387#true} is VALID [2020-07-28 18:59:50,943 INFO L280 TraceCheckUtils]: 1: Hoare triple {3387#true} havoc main_#res;havoc main_#t~ret61, main_~retValue_acc~8, main_~tmp~7;havoc main_~retValue_acc~8;havoc main_~tmp~7; {3387#true} is VALID [2020-07-28 18:59:50,945 INFO L280 TraceCheckUtils]: 2: Hoare triple {3387#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; {3389#(= 1 |ULTIMATE.start_valid_product_#res|)} is VALID [2020-07-28 18:59:50,946 INFO L280 TraceCheckUtils]: 3: Hoare triple {3389#(= 1 |ULTIMATE.start_valid_product_#res|)} main_#t~ret61 := valid_product_#res;assume -2147483648 <= main_#t~ret61 && main_#t~ret61 <= 2147483647;main_~tmp~7 := main_#t~ret61;havoc main_#t~ret61; {3390#(= 1 ULTIMATE.start_main_~tmp~7)} is VALID [2020-07-28 18:59:50,946 INFO L280 TraceCheckUtils]: 4: Hoare triple {3390#(= 1 ULTIMATE.start_main_~tmp~7)} assume 0 != main_~tmp~7; {3387#true} is VALID [2020-07-28 18:59:50,946 INFO L280 TraceCheckUtils]: 5: Hoare triple {3387#true} ~methAndRunningLastTime~0 := 0; {3387#true} is VALID [2020-07-28 18:59:50,946 INFO L280 TraceCheckUtils]: 6: Hoare triple {3387#true} havoc test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {3387#true} is VALID [2020-07-28 18:59:50,947 INFO L280 TraceCheckUtils]: 7: Hoare triple {3387#true} assume !false; {3387#true} is VALID [2020-07-28 18:59:50,947 INFO L280 TraceCheckUtils]: 8: Hoare triple {3387#true} assume test_~splverifierCounter~0 < 4; {3387#true} is VALID [2020-07-28 18:59:50,947 INFO L280 TraceCheckUtils]: 9: Hoare triple {3387#true} assume -2147483648 <= test_#t~nondet54 && test_#t~nondet54 <= 2147483647;test_~tmp~5 := test_#t~nondet54;havoc test_#t~nondet54; {3387#true} is VALID [2020-07-28 18:59:50,948 INFO L280 TraceCheckUtils]: 10: Hoare triple {3387#true} assume !(0 != test_~tmp~5); {3387#true} is VALID [2020-07-28 18:59:50,948 INFO L280 TraceCheckUtils]: 11: Hoare triple {3387#true} assume -2147483648 <= test_#t~nondet55 && test_#t~nondet55 <= 2147483647;test_~tmp___0~1 := test_#t~nondet55;havoc test_#t~nondet55; {3387#true} is VALID [2020-07-28 18:59:50,948 INFO L280 TraceCheckUtils]: 12: Hoare triple {3387#true} assume !(0 != test_~tmp___0~1); {3387#true} is VALID [2020-07-28 18:59:50,948 INFO L280 TraceCheckUtils]: 13: Hoare triple {3387#true} assume -2147483648 <= test_#t~nondet56 && test_#t~nondet56 <= 2147483647;test_~tmp___2~0 := test_#t~nondet56;havoc test_#t~nondet56; {3387#true} is VALID [2020-07-28 18:59:50,949 INFO L280 TraceCheckUtils]: 14: Hoare triple {3387#true} assume 0 != test_~tmp___2~0; {3387#true} is VALID [2020-07-28 18:59:50,949 INFO L280 TraceCheckUtils]: 15: Hoare triple {3387#true} assume !(0 != ~pumpRunning~0); {3387#true} is VALID [2020-07-28 18:59:50,949 INFO L280 TraceCheckUtils]: 16: Hoare triple {3387#true} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret35, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; {3387#true} is VALID [2020-07-28 18:59:50,950 INFO L280 TraceCheckUtils]: 17: Hoare triple {3387#true} assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret53, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; {3387#true} is VALID [2020-07-28 18:59:50,950 INFO L280 TraceCheckUtils]: 18: Hoare triple {3387#true} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; {3391#(not (= 0 |ULTIMATE.start_isHighWaterSensorDry_#res|))} is VALID [2020-07-28 18:59:50,951 INFO L280 TraceCheckUtils]: 19: Hoare triple {3391#(not (= 0 |ULTIMATE.start_isHighWaterSensorDry_#res|))} isHighWaterLevel_#t~ret53 := isHighWaterSensorDry_#res;assume -2147483648 <= isHighWaterLevel_#t~ret53 && isHighWaterLevel_#t~ret53 <= 2147483647;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret53;havoc isHighWaterLevel_#t~ret53; {3392#(not (= 0 ULTIMATE.start_isHighWaterLevel_~tmp~4))} is VALID [2020-07-28 18:59:50,952 INFO L280 TraceCheckUtils]: 20: Hoare triple {3392#(not (= 0 ULTIMATE.start_isHighWaterLevel_~tmp~4))} assume !(0 != isHighWaterLevel_~tmp~4);isHighWaterLevel_~tmp___0~0 := 1; {3388#false} is VALID [2020-07-28 18:59:50,952 INFO L280 TraceCheckUtils]: 21: Hoare triple {3388#false} isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; {3388#false} is VALID [2020-07-28 18:59:50,952 INFO L280 TraceCheckUtils]: 22: Hoare triple {3388#false} processEnvironment_#t~ret35 := isHighWaterLevel_#res;assume -2147483648 <= processEnvironment_#t~ret35 && processEnvironment_#t~ret35 <= 2147483647;processEnvironment_~tmp~3 := processEnvironment_#t~ret35;havoc processEnvironment_#t~ret35; {3388#false} is VALID [2020-07-28 18:59:50,952 INFO L280 TraceCheckUtils]: 23: Hoare triple {3388#false} assume 0 != processEnvironment_~tmp~3;~pumpRunning~0 := 1; {3388#false} is VALID [2020-07-28 18:59:50,953 INFO L280 TraceCheckUtils]: 24: Hoare triple {3388#false} havoc __utac_acc__Specification2_spec__2_#t~ret58, __utac_acc__Specification2_spec__2_#t~ret59, __utac_acc__Specification2_spec__2_~tmp~6, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~6;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;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; {3388#false} is VALID [2020-07-28 18:59:50,953 INFO L280 TraceCheckUtils]: 25: Hoare triple {3388#false} __utac_acc__Specification2_spec__2_#t~ret58 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification2_spec__2_#t~ret58 && __utac_acc__Specification2_spec__2_#t~ret58 <= 2147483647;__utac_acc__Specification2_spec__2_~tmp~6 := __utac_acc__Specification2_spec__2_#t~ret58;havoc __utac_acc__Specification2_spec__2_#t~ret58; {3388#false} is VALID [2020-07-28 18:59:50,953 INFO L280 TraceCheckUtils]: 26: Hoare triple {3388#false} assume 0 != __utac_acc__Specification2_spec__2_~tmp~6;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; {3388#false} is VALID [2020-07-28 18:59:50,953 INFO L280 TraceCheckUtils]: 27: Hoare triple {3388#false} __utac_acc__Specification2_spec__2_#t~ret59 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification2_spec__2_#t~ret59 && __utac_acc__Specification2_spec__2_#t~ret59 <= 2147483647;__utac_acc__Specification2_spec__2_~tmp___0~2 := __utac_acc__Specification2_spec__2_#t~ret59;havoc __utac_acc__Specification2_spec__2_#t~ret59; {3388#false} is VALID [2020-07-28 18:59:50,953 INFO L280 TraceCheckUtils]: 28: Hoare triple {3388#false} assume 0 != __utac_acc__Specification2_spec__2_~tmp___0~2; {3388#false} is VALID [2020-07-28 18:59:50,954 INFO L280 TraceCheckUtils]: 29: Hoare triple {3388#false} assume 0 != ~methAndRunningLastTime~0; {3388#false} is VALID [2020-07-28 18:59:50,954 INFO L280 TraceCheckUtils]: 30: Hoare triple {3388#false} assume !false; {3388#false} is VALID [2020-07-28 18:59:50,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:59:50,957 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245042576] [2020-07-28 18:59:50,957 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:59:50,957 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-28 18:59:50,958 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344848398] [2020-07-28 18:59:50,958 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2020-07-28 18:59:50,958 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:59:50,958 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-28 18:59:51,000 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 31 edges. 31 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:59:51,001 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-28 18:59:51,001 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:59:51,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-28 18:59:51,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-28 18:59:51,001 INFO L87 Difference]: Start difference. First operand 79 states and 109 transitions. Second operand 6 states. [2020-07-28 18:59:51,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:59:51,890 INFO L93 Difference]: Finished difference Result 234 states and 325 transitions. [2020-07-28 18:59:51,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-28 18:59:51,890 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2020-07-28 18:59:51,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:59:51,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 18:59:51,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 168 transitions. [2020-07-28 18:59:51,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 18:59:51,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 168 transitions. [2020-07-28 18:59:51,897 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 168 transitions. [2020-07-28 18:59:52,115 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 168 edges. 168 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:59:52,118 INFO L225 Difference]: With dead ends: 234 [2020-07-28 18:59:52,119 INFO L226 Difference]: Without dead ends: 162 [2020-07-28 18:59:52,119 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-07-28 18:59:52,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-07-28 18:59:52,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 81. [2020-07-28 18:59:52,320 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:59:52,320 INFO L82 GeneralOperation]: Start isEquivalent. First operand 162 states. Second operand 81 states. [2020-07-28 18:59:52,320 INFO L74 IsIncluded]: Start isIncluded. First operand 162 states. Second operand 81 states. [2020-07-28 18:59:52,320 INFO L87 Difference]: Start difference. First operand 162 states. Second operand 81 states. [2020-07-28 18:59:52,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:59:52,327 INFO L93 Difference]: Finished difference Result 162 states and 222 transitions. [2020-07-28 18:59:52,328 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 222 transitions. [2020-07-28 18:59:52,328 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:59:52,328 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:59:52,329 INFO L74 IsIncluded]: Start isIncluded. First operand 81 states. Second operand 162 states. [2020-07-28 18:59:52,329 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 162 states. [2020-07-28 18:59:52,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:59:52,335 INFO L93 Difference]: Finished difference Result 162 states and 222 transitions. [2020-07-28 18:59:52,335 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 222 transitions. [2020-07-28 18:59:52,336 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:59:52,336 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:59:52,336 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:59:52,336 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:59:52,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-07-28 18:59:52,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 111 transitions. [2020-07-28 18:59:52,340 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 111 transitions. Word has length 31 [2020-07-28 18:59:52,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:59:52,340 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 111 transitions. [2020-07-28 18:59:52,340 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-28 18:59:52,340 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 111 transitions. [2020-07-28 18:59:52,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-07-28 18:59:52,341 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:59:52,341 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 18:59:52,342 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-28 18:59:52,342 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:59:52,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:59:52,342 INFO L82 PathProgramCache]: Analyzing trace with hash 675516428, now seen corresponding path program 1 times [2020-07-28 18:59:52,343 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:59:52,343 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297264162] [2020-07-28 18:59:52,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:59:52,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:59:52,405 INFO L280 TraceCheckUtils]: 0: Hoare triple {4174#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(13);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string40.base, #t~string40.offset, 1);call write~init~int(110, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(102, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(102, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 3 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string44.base, #t~string44.offset, 1);call write~init~int(80, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(117, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(109, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(112, #t~string44.base, 4 + #t~string44.offset, 1);call write~init~int(58, #t~string44.base, 5 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 6 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string50.base, #t~string50.offset, 1);call write~init~int(32, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 2 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string52.base, #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 1 + #t~string52.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(77, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(101, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(116, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(104, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string67.base, #t~string67.offset, 1);call write~init~int(82, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(73, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(84, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 4 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(75, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 1 + #t~string71.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {4176#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:59:52,406 INFO L280 TraceCheckUtils]: 1: Hoare triple {4176#(= 1 ~waterLevel~0)} havoc main_#res;havoc main_#t~ret61, main_~retValue_acc~8, main_~tmp~7;havoc main_~retValue_acc~8;havoc main_~tmp~7; {4176#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:59:52,406 INFO L280 TraceCheckUtils]: 2: Hoare triple {4176#(= 1 ~waterLevel~0)} havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; {4176#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:59:52,407 INFO L280 TraceCheckUtils]: 3: Hoare triple {4176#(= 1 ~waterLevel~0)} main_#t~ret61 := valid_product_#res;assume -2147483648 <= main_#t~ret61 && main_#t~ret61 <= 2147483647;main_~tmp~7 := main_#t~ret61;havoc main_#t~ret61; {4176#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:59:52,408 INFO L280 TraceCheckUtils]: 4: Hoare triple {4176#(= 1 ~waterLevel~0)} assume 0 != main_~tmp~7; {4176#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:59:52,408 INFO L280 TraceCheckUtils]: 5: Hoare triple {4176#(= 1 ~waterLevel~0)} ~methAndRunningLastTime~0 := 0; {4176#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:59:52,408 INFO L280 TraceCheckUtils]: 6: Hoare triple {4176#(= 1 ~waterLevel~0)} havoc test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {4176#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:59:52,409 INFO L280 TraceCheckUtils]: 7: Hoare triple {4176#(= 1 ~waterLevel~0)} assume !false; {4176#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:59:52,409 INFO L280 TraceCheckUtils]: 8: Hoare triple {4176#(= 1 ~waterLevel~0)} assume test_~splverifierCounter~0 < 4; {4176#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:59:52,410 INFO L280 TraceCheckUtils]: 9: Hoare triple {4176#(= 1 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet54 && test_#t~nondet54 <= 2147483647;test_~tmp~5 := test_#t~nondet54;havoc test_#t~nondet54; {4176#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:59:52,411 INFO L280 TraceCheckUtils]: 10: Hoare triple {4176#(= 1 ~waterLevel~0)} assume !(0 != test_~tmp~5); {4176#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:59:52,413 INFO L280 TraceCheckUtils]: 11: Hoare triple {4176#(= 1 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet55 && test_#t~nondet55 <= 2147483647;test_~tmp___0~1 := test_#t~nondet55;havoc test_#t~nondet55; {4176#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:59:52,416 INFO L280 TraceCheckUtils]: 12: Hoare triple {4176#(= 1 ~waterLevel~0)} assume !(0 != test_~tmp___0~1); {4176#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:59:52,417 INFO L280 TraceCheckUtils]: 13: Hoare triple {4176#(= 1 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet56 && test_#t~nondet56 <= 2147483647;test_~tmp___2~0 := test_#t~nondet56;havoc test_#t~nondet56; {4176#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:59:52,418 INFO L280 TraceCheckUtils]: 14: Hoare triple {4176#(= 1 ~waterLevel~0)} assume 0 != test_~tmp___2~0; {4176#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:59:52,418 INFO L280 TraceCheckUtils]: 15: Hoare triple {4176#(= 1 ~waterLevel~0)} assume !(0 != ~pumpRunning~0); {4176#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:59:52,419 INFO L280 TraceCheckUtils]: 16: Hoare triple {4176#(= 1 ~waterLevel~0)} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret35, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; {4176#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:59:52,419 INFO L280 TraceCheckUtils]: 17: Hoare triple {4176#(= 1 ~waterLevel~0)} assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret53, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; {4176#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:59:52,420 INFO L280 TraceCheckUtils]: 18: Hoare triple {4176#(= 1 ~waterLevel~0)} assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~11 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; {4175#false} is VALID [2020-07-28 18:59:52,420 INFO L280 TraceCheckUtils]: 19: Hoare triple {4175#false} isHighWaterLevel_#t~ret53 := isHighWaterSensorDry_#res;assume -2147483648 <= isHighWaterLevel_#t~ret53 && isHighWaterLevel_#t~ret53 <= 2147483647;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret53;havoc isHighWaterLevel_#t~ret53; {4175#false} is VALID [2020-07-28 18:59:52,421 INFO L280 TraceCheckUtils]: 20: Hoare triple {4175#false} assume !(0 != isHighWaterLevel_~tmp~4);isHighWaterLevel_~tmp___0~0 := 1; {4175#false} is VALID [2020-07-28 18:59:52,421 INFO L280 TraceCheckUtils]: 21: Hoare triple {4175#false} isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; {4175#false} is VALID [2020-07-28 18:59:52,421 INFO L280 TraceCheckUtils]: 22: Hoare triple {4175#false} processEnvironment_#t~ret35 := isHighWaterLevel_#res;assume -2147483648 <= processEnvironment_#t~ret35 && processEnvironment_#t~ret35 <= 2147483647;processEnvironment_~tmp~3 := processEnvironment_#t~ret35;havoc processEnvironment_#t~ret35; {4175#false} is VALID [2020-07-28 18:59:52,421 INFO L280 TraceCheckUtils]: 23: Hoare triple {4175#false} assume 0 != processEnvironment_~tmp~3;~pumpRunning~0 := 1; {4175#false} is VALID [2020-07-28 18:59:52,422 INFO L280 TraceCheckUtils]: 24: Hoare triple {4175#false} havoc __utac_acc__Specification2_spec__2_#t~ret58, __utac_acc__Specification2_spec__2_#t~ret59, __utac_acc__Specification2_spec__2_~tmp~6, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~6;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;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; {4175#false} is VALID [2020-07-28 18:59:52,422 INFO L280 TraceCheckUtils]: 25: Hoare triple {4175#false} __utac_acc__Specification2_spec__2_#t~ret58 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification2_spec__2_#t~ret58 && __utac_acc__Specification2_spec__2_#t~ret58 <= 2147483647;__utac_acc__Specification2_spec__2_~tmp~6 := __utac_acc__Specification2_spec__2_#t~ret58;havoc __utac_acc__Specification2_spec__2_#t~ret58; {4175#false} is VALID [2020-07-28 18:59:52,422 INFO L280 TraceCheckUtils]: 26: Hoare triple {4175#false} assume 0 != __utac_acc__Specification2_spec__2_~tmp~6;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; {4175#false} is VALID [2020-07-28 18:59:52,422 INFO L280 TraceCheckUtils]: 27: Hoare triple {4175#false} __utac_acc__Specification2_spec__2_#t~ret59 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification2_spec__2_#t~ret59 && __utac_acc__Specification2_spec__2_#t~ret59 <= 2147483647;__utac_acc__Specification2_spec__2_~tmp___0~2 := __utac_acc__Specification2_spec__2_#t~ret59;havoc __utac_acc__Specification2_spec__2_#t~ret59; {4175#false} is VALID [2020-07-28 18:59:52,422 INFO L280 TraceCheckUtils]: 28: Hoare triple {4175#false} assume 0 != __utac_acc__Specification2_spec__2_~tmp___0~2; {4175#false} is VALID [2020-07-28 18:59:52,423 INFO L280 TraceCheckUtils]: 29: Hoare triple {4175#false} assume 0 != ~methAndRunningLastTime~0; {4175#false} is VALID [2020-07-28 18:59:52,423 INFO L280 TraceCheckUtils]: 30: Hoare triple {4175#false} assume !false; {4175#false} is VALID [2020-07-28 18:59:52,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:59:52,425 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297264162] [2020-07-28 18:59:52,425 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:59:52,425 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 18:59:52,425 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500307561] [2020-07-28 18:59:52,426 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2020-07-28 18:59:52,426 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:59:52,426 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 18:59:52,464 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 31 edges. 31 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:59:52,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 18:59:52,464 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:59:52,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 18:59:52,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 18:59:52,465 INFO L87 Difference]: Start difference. First operand 81 states and 111 transitions. Second operand 3 states. [2020-07-28 18:59:52,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:59:52,872 INFO L93 Difference]: Finished difference Result 200 states and 276 transitions. [2020-07-28 18:59:52,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 18:59:52,872 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2020-07-28 18:59:52,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:59:52,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 18:59:52,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 137 transitions. [2020-07-28 18:59:52,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 18:59:52,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 137 transitions. [2020-07-28 18:59:52,877 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 137 transitions. [2020-07-28 18:59:53,028 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 137 edges. 137 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:59:53,031 INFO L225 Difference]: With dead ends: 200 [2020-07-28 18:59:53,031 INFO L226 Difference]: Without dead ends: 126 [2020-07-28 18:59:53,032 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 18:59:53,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-07-28 18:59:53,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2020-07-28 18:59:53,286 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:59:53,286 INFO L82 GeneralOperation]: Start isEquivalent. First operand 126 states. Second operand 126 states. [2020-07-28 18:59:53,286 INFO L74 IsIncluded]: Start isIncluded. First operand 126 states. Second operand 126 states. [2020-07-28 18:59:53,286 INFO L87 Difference]: Start difference. First operand 126 states. Second operand 126 states. [2020-07-28 18:59:53,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:59:53,294 INFO L93 Difference]: Finished difference Result 126 states and 169 transitions. [2020-07-28 18:59:53,294 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 169 transitions. [2020-07-28 18:59:53,294 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:59:53,294 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:59:53,295 INFO L74 IsIncluded]: Start isIncluded. First operand 126 states. Second operand 126 states. [2020-07-28 18:59:53,295 INFO L87 Difference]: Start difference. First operand 126 states. Second operand 126 states. [2020-07-28 18:59:53,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:59:53,299 INFO L93 Difference]: Finished difference Result 126 states and 169 transitions. [2020-07-28 18:59:53,299 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 169 transitions. [2020-07-28 18:59:53,300 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:59:53,300 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:59:53,300 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:59:53,300 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:59:53,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-07-28 18:59:53,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 169 transitions. [2020-07-28 18:59:53,305 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 169 transitions. Word has length 31 [2020-07-28 18:59:53,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:59:53,305 INFO L479 AbstractCegarLoop]: Abstraction has 126 states and 169 transitions. [2020-07-28 18:59:53,305 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 18:59:53,305 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 169 transitions. [2020-07-28 18:59:53,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-07-28 18:59:53,306 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:59:53,306 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 18:59:53,307 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-28 18:59:53,307 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:59:53,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:59:53,307 INFO L82 PathProgramCache]: Analyzing trace with hash -341505332, now seen corresponding path program 1 times [2020-07-28 18:59:53,308 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:59:53,308 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952107367] [2020-07-28 18:59:53,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:59:53,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:59:53,362 INFO L280 TraceCheckUtils]: 0: Hoare triple {4890#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(13);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string40.base, #t~string40.offset, 1);call write~init~int(110, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(102, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(102, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 3 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string44.base, #t~string44.offset, 1);call write~init~int(80, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(117, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(109, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(112, #t~string44.base, 4 + #t~string44.offset, 1);call write~init~int(58, #t~string44.base, 5 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 6 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string50.base, #t~string50.offset, 1);call write~init~int(32, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 2 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string52.base, #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 1 + #t~string52.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(77, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(101, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(116, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(104, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string67.base, #t~string67.offset, 1);call write~init~int(82, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(73, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(84, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 4 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(75, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 1 + #t~string71.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {4890#true} is VALID [2020-07-28 18:59:53,362 INFO L280 TraceCheckUtils]: 1: Hoare triple {4890#true} havoc main_#res;havoc main_#t~ret61, main_~retValue_acc~8, main_~tmp~7;havoc main_~retValue_acc~8;havoc main_~tmp~7; {4890#true} is VALID [2020-07-28 18:59:53,362 INFO L280 TraceCheckUtils]: 2: Hoare triple {4890#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; {4890#true} is VALID [2020-07-28 18:59:53,363 INFO L280 TraceCheckUtils]: 3: Hoare triple {4890#true} main_#t~ret61 := valid_product_#res;assume -2147483648 <= main_#t~ret61 && main_#t~ret61 <= 2147483647;main_~tmp~7 := main_#t~ret61;havoc main_#t~ret61; {4890#true} is VALID [2020-07-28 18:59:53,363 INFO L280 TraceCheckUtils]: 4: Hoare triple {4890#true} assume 0 != main_~tmp~7; {4890#true} is VALID [2020-07-28 18:59:53,369 INFO L280 TraceCheckUtils]: 5: Hoare triple {4890#true} ~methAndRunningLastTime~0 := 0; {4892#(= 0 ~methAndRunningLastTime~0)} is VALID [2020-07-28 18:59:53,370 INFO L280 TraceCheckUtils]: 6: Hoare triple {4892#(= 0 ~methAndRunningLastTime~0)} havoc test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {4892#(= 0 ~methAndRunningLastTime~0)} is VALID [2020-07-28 18:59:53,372 INFO L280 TraceCheckUtils]: 7: Hoare triple {4892#(= 0 ~methAndRunningLastTime~0)} assume !false; {4892#(= 0 ~methAndRunningLastTime~0)} is VALID [2020-07-28 18:59:53,374 INFO L280 TraceCheckUtils]: 8: Hoare triple {4892#(= 0 ~methAndRunningLastTime~0)} assume test_~splverifierCounter~0 < 4; {4892#(= 0 ~methAndRunningLastTime~0)} is VALID [2020-07-28 18:59:53,376 INFO L280 TraceCheckUtils]: 9: Hoare triple {4892#(= 0 ~methAndRunningLastTime~0)} assume -2147483648 <= test_#t~nondet54 && test_#t~nondet54 <= 2147483647;test_~tmp~5 := test_#t~nondet54;havoc test_#t~nondet54; {4892#(= 0 ~methAndRunningLastTime~0)} is VALID [2020-07-28 18:59:53,378 INFO L280 TraceCheckUtils]: 10: Hoare triple {4892#(= 0 ~methAndRunningLastTime~0)} assume 0 != test_~tmp~5; {4892#(= 0 ~methAndRunningLastTime~0)} is VALID [2020-07-28 18:59:53,380 INFO L280 TraceCheckUtils]: 11: Hoare triple {4892#(= 0 ~methAndRunningLastTime~0)} assume ~waterLevel~0 < 2;~waterLevel~0 := 1 + ~waterLevel~0; {4892#(= 0 ~methAndRunningLastTime~0)} is VALID [2020-07-28 18:59:53,382 INFO L280 TraceCheckUtils]: 12: Hoare triple {4892#(= 0 ~methAndRunningLastTime~0)} assume -2147483648 <= test_#t~nondet55 && test_#t~nondet55 <= 2147483647;test_~tmp___0~1 := test_#t~nondet55;havoc test_#t~nondet55; {4892#(= 0 ~methAndRunningLastTime~0)} is VALID [2020-07-28 18:59:53,384 INFO L280 TraceCheckUtils]: 13: Hoare triple {4892#(= 0 ~methAndRunningLastTime~0)} assume !(0 != test_~tmp___0~1); {4892#(= 0 ~methAndRunningLastTime~0)} is VALID [2020-07-28 18:59:53,390 INFO L280 TraceCheckUtils]: 14: Hoare triple {4892#(= 0 ~methAndRunningLastTime~0)} assume -2147483648 <= test_#t~nondet56 && test_#t~nondet56 <= 2147483647;test_~tmp___2~0 := test_#t~nondet56;havoc test_#t~nondet56; {4892#(= 0 ~methAndRunningLastTime~0)} is VALID [2020-07-28 18:59:53,391 INFO L280 TraceCheckUtils]: 15: Hoare triple {4892#(= 0 ~methAndRunningLastTime~0)} assume 0 != test_~tmp___2~0; {4892#(= 0 ~methAndRunningLastTime~0)} is VALID [2020-07-28 18:59:53,392 INFO L280 TraceCheckUtils]: 16: Hoare triple {4892#(= 0 ~methAndRunningLastTime~0)} assume !(0 != ~pumpRunning~0); {4892#(= 0 ~methAndRunningLastTime~0)} is VALID [2020-07-28 18:59:53,394 INFO L280 TraceCheckUtils]: 17: Hoare triple {4892#(= 0 ~methAndRunningLastTime~0)} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret35, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; {4892#(= 0 ~methAndRunningLastTime~0)} is VALID [2020-07-28 18:59:53,396 INFO L280 TraceCheckUtils]: 18: Hoare triple {4892#(= 0 ~methAndRunningLastTime~0)} assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret53, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; {4892#(= 0 ~methAndRunningLastTime~0)} is VALID [2020-07-28 18:59:53,398 INFO L280 TraceCheckUtils]: 19: Hoare triple {4892#(= 0 ~methAndRunningLastTime~0)} assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~11 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; {4892#(= 0 ~methAndRunningLastTime~0)} is VALID [2020-07-28 18:59:53,400 INFO L280 TraceCheckUtils]: 20: Hoare triple {4892#(= 0 ~methAndRunningLastTime~0)} isHighWaterLevel_#t~ret53 := isHighWaterSensorDry_#res;assume -2147483648 <= isHighWaterLevel_#t~ret53 && isHighWaterLevel_#t~ret53 <= 2147483647;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret53;havoc isHighWaterLevel_#t~ret53; {4892#(= 0 ~methAndRunningLastTime~0)} is VALID [2020-07-28 18:59:53,402 INFO L280 TraceCheckUtils]: 21: Hoare triple {4892#(= 0 ~methAndRunningLastTime~0)} assume !(0 != isHighWaterLevel_~tmp~4);isHighWaterLevel_~tmp___0~0 := 1; {4892#(= 0 ~methAndRunningLastTime~0)} is VALID [2020-07-28 18:59:53,404 INFO L280 TraceCheckUtils]: 22: Hoare triple {4892#(= 0 ~methAndRunningLastTime~0)} isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; {4892#(= 0 ~methAndRunningLastTime~0)} is VALID [2020-07-28 18:59:53,406 INFO L280 TraceCheckUtils]: 23: Hoare triple {4892#(= 0 ~methAndRunningLastTime~0)} processEnvironment_#t~ret35 := isHighWaterLevel_#res;assume -2147483648 <= processEnvironment_#t~ret35 && processEnvironment_#t~ret35 <= 2147483647;processEnvironment_~tmp~3 := processEnvironment_#t~ret35;havoc processEnvironment_#t~ret35; {4892#(= 0 ~methAndRunningLastTime~0)} is VALID [2020-07-28 18:59:53,408 INFO L280 TraceCheckUtils]: 24: Hoare triple {4892#(= 0 ~methAndRunningLastTime~0)} assume 0 != processEnvironment_~tmp~3;~pumpRunning~0 := 1; {4892#(= 0 ~methAndRunningLastTime~0)} is VALID [2020-07-28 18:59:53,410 INFO L280 TraceCheckUtils]: 25: Hoare triple {4892#(= 0 ~methAndRunningLastTime~0)} havoc __utac_acc__Specification2_spec__2_#t~ret58, __utac_acc__Specification2_spec__2_#t~ret59, __utac_acc__Specification2_spec__2_~tmp~6, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~6;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;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; {4892#(= 0 ~methAndRunningLastTime~0)} is VALID [2020-07-28 18:59:53,411 INFO L280 TraceCheckUtils]: 26: Hoare triple {4892#(= 0 ~methAndRunningLastTime~0)} __utac_acc__Specification2_spec__2_#t~ret58 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification2_spec__2_#t~ret58 && __utac_acc__Specification2_spec__2_#t~ret58 <= 2147483647;__utac_acc__Specification2_spec__2_~tmp~6 := __utac_acc__Specification2_spec__2_#t~ret58;havoc __utac_acc__Specification2_spec__2_#t~ret58; {4892#(= 0 ~methAndRunningLastTime~0)} is VALID [2020-07-28 18:59:53,412 INFO L280 TraceCheckUtils]: 27: Hoare triple {4892#(= 0 ~methAndRunningLastTime~0)} assume 0 != __utac_acc__Specification2_spec__2_~tmp~6;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; {4892#(= 0 ~methAndRunningLastTime~0)} is VALID [2020-07-28 18:59:53,414 INFO L280 TraceCheckUtils]: 28: Hoare triple {4892#(= 0 ~methAndRunningLastTime~0)} __utac_acc__Specification2_spec__2_#t~ret59 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification2_spec__2_#t~ret59 && __utac_acc__Specification2_spec__2_#t~ret59 <= 2147483647;__utac_acc__Specification2_spec__2_~tmp___0~2 := __utac_acc__Specification2_spec__2_#t~ret59;havoc __utac_acc__Specification2_spec__2_#t~ret59; {4892#(= 0 ~methAndRunningLastTime~0)} is VALID [2020-07-28 18:59:53,416 INFO L280 TraceCheckUtils]: 29: Hoare triple {4892#(= 0 ~methAndRunningLastTime~0)} assume 0 != __utac_acc__Specification2_spec__2_~tmp___0~2; {4892#(= 0 ~methAndRunningLastTime~0)} is VALID [2020-07-28 18:59:53,418 INFO L280 TraceCheckUtils]: 30: Hoare triple {4892#(= 0 ~methAndRunningLastTime~0)} assume 0 != ~methAndRunningLastTime~0; {4891#false} is VALID [2020-07-28 18:59:53,419 INFO L280 TraceCheckUtils]: 31: Hoare triple {4891#false} assume !false; {4891#false} is VALID [2020-07-28 18:59:53,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:59:53,421 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952107367] [2020-07-28 18:59:53,422 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:59:53,422 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 18:59:53,422 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907586745] [2020-07-28 18:59:53,422 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2020-07-28 18:59:53,423 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:59:53,423 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 18:59:53,459 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 32 edges. 32 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:59:53,459 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 18:59:53,459 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:59:53,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 18:59:53,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 18:59:53,460 INFO L87 Difference]: Start difference. First operand 126 states and 169 transitions. Second operand 3 states. [2020-07-28 18:59:54,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:59:54,003 INFO L93 Difference]: Finished difference Result 176 states and 237 transitions. [2020-07-28 18:59:54,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 18:59:54,003 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2020-07-28 18:59:54,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:59:54,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 18:59:54,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 101 transitions. [2020-07-28 18:59:54,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 18:59:54,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 101 transitions. [2020-07-28 18:59:54,006 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 101 transitions. [2020-07-28 18:59:54,107 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 101 edges. 101 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:59:54,112 INFO L225 Difference]: With dead ends: 176 [2020-07-28 18:59:54,112 INFO L226 Difference]: Without dead ends: 174 [2020-07-28 18:59:54,114 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 18:59:54,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2020-07-28 18:59:54,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 159. [2020-07-28 18:59:54,504 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:59:54,504 INFO L82 GeneralOperation]: Start isEquivalent. First operand 174 states. Second operand 159 states. [2020-07-28 18:59:54,504 INFO L74 IsIncluded]: Start isIncluded. First operand 174 states. Second operand 159 states. [2020-07-28 18:59:54,504 INFO L87 Difference]: Start difference. First operand 174 states. Second operand 159 states. [2020-07-28 18:59:54,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:59:54,509 INFO L93 Difference]: Finished difference Result 174 states and 235 transitions. [2020-07-28 18:59:54,509 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 235 transitions. [2020-07-28 18:59:54,509 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:59:54,510 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:59:54,510 INFO L74 IsIncluded]: Start isIncluded. First operand 159 states. Second operand 174 states. [2020-07-28 18:59:54,510 INFO L87 Difference]: Start difference. First operand 159 states. Second operand 174 states. [2020-07-28 18:59:54,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:59:54,514 INFO L93 Difference]: Finished difference Result 174 states and 235 transitions. [2020-07-28 18:59:54,514 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 235 transitions. [2020-07-28 18:59:54,515 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:59:54,515 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:59:54,515 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:59:54,515 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:59:54,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2020-07-28 18:59:54,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 218 transitions. [2020-07-28 18:59:54,519 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 218 transitions. Word has length 32 [2020-07-28 18:59:54,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:59:54,520 INFO L479 AbstractCegarLoop]: Abstraction has 159 states and 218 transitions. [2020-07-28 18:59:54,520 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 18:59:54,520 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 218 transitions. [2020-07-28 18:59:54,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-07-28 18:59:54,521 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:59:54,521 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 18:59:54,522 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-28 18:59:54,522 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:59:54,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:59:54,522 INFO L82 PathProgramCache]: Analyzing trace with hash -1003973856, now seen corresponding path program 1 times [2020-07-28 18:59:54,523 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:59:54,523 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150003342] [2020-07-28 18:59:54,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:59:54,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:59:54,614 INFO L280 TraceCheckUtils]: 0: Hoare triple {5718#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(13);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string40.base, #t~string40.offset, 1);call write~init~int(110, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(102, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(102, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 3 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string44.base, #t~string44.offset, 1);call write~init~int(80, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(117, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(109, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(112, #t~string44.base, 4 + #t~string44.offset, 1);call write~init~int(58, #t~string44.base, 5 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 6 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string50.base, #t~string50.offset, 1);call write~init~int(32, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 2 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string52.base, #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 1 + #t~string52.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(77, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(101, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(116, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(104, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string67.base, #t~string67.offset, 1);call write~init~int(82, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(73, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(84, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 4 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(75, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 1 + #t~string71.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {5720#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:59:54,615 INFO L280 TraceCheckUtils]: 1: Hoare triple {5720#(= 0 ~methaneLevelCritical~0)} havoc main_#res;havoc main_#t~ret61, main_~retValue_acc~8, main_~tmp~7;havoc main_~retValue_acc~8;havoc main_~tmp~7; {5720#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:59:54,615 INFO L280 TraceCheckUtils]: 2: Hoare triple {5720#(= 0 ~methaneLevelCritical~0)} havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; {5720#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:59:54,616 INFO L280 TraceCheckUtils]: 3: Hoare triple {5720#(= 0 ~methaneLevelCritical~0)} main_#t~ret61 := valid_product_#res;assume -2147483648 <= main_#t~ret61 && main_#t~ret61 <= 2147483647;main_~tmp~7 := main_#t~ret61;havoc main_#t~ret61; {5720#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:59:54,617 INFO L280 TraceCheckUtils]: 4: Hoare triple {5720#(= 0 ~methaneLevelCritical~0)} assume 0 != main_~tmp~7; {5720#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:59:54,617 INFO L280 TraceCheckUtils]: 5: Hoare triple {5720#(= 0 ~methaneLevelCritical~0)} ~methAndRunningLastTime~0 := 0; {5720#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:59:54,618 INFO L280 TraceCheckUtils]: 6: Hoare triple {5720#(= 0 ~methaneLevelCritical~0)} havoc test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {5720#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:59:54,618 INFO L280 TraceCheckUtils]: 7: Hoare triple {5720#(= 0 ~methaneLevelCritical~0)} assume !false; {5720#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:59:54,619 INFO L280 TraceCheckUtils]: 8: Hoare triple {5720#(= 0 ~methaneLevelCritical~0)} assume test_~splverifierCounter~0 < 4; {5720#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:59:54,620 INFO L280 TraceCheckUtils]: 9: Hoare triple {5720#(= 0 ~methaneLevelCritical~0)} assume -2147483648 <= test_#t~nondet54 && test_#t~nondet54 <= 2147483647;test_~tmp~5 := test_#t~nondet54;havoc test_#t~nondet54; {5720#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:59:54,620 INFO L280 TraceCheckUtils]: 10: Hoare triple {5720#(= 0 ~methaneLevelCritical~0)} assume 0 != test_~tmp~5; {5720#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:59:54,621 INFO L280 TraceCheckUtils]: 11: Hoare triple {5720#(= 0 ~methaneLevelCritical~0)} assume ~waterLevel~0 < 2;~waterLevel~0 := 1 + ~waterLevel~0; {5720#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:59:54,621 INFO L280 TraceCheckUtils]: 12: Hoare triple {5720#(= 0 ~methaneLevelCritical~0)} assume -2147483648 <= test_#t~nondet55 && test_#t~nondet55 <= 2147483647;test_~tmp___0~1 := test_#t~nondet55;havoc test_#t~nondet55; {5720#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:59:54,622 INFO L280 TraceCheckUtils]: 13: Hoare triple {5720#(= 0 ~methaneLevelCritical~0)} assume !(0 != test_~tmp___0~1); {5720#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:59:54,623 INFO L280 TraceCheckUtils]: 14: Hoare triple {5720#(= 0 ~methaneLevelCritical~0)} assume -2147483648 <= test_#t~nondet56 && test_#t~nondet56 <= 2147483647;test_~tmp___2~0 := test_#t~nondet56;havoc test_#t~nondet56; {5720#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:59:54,623 INFO L280 TraceCheckUtils]: 15: Hoare triple {5720#(= 0 ~methaneLevelCritical~0)} assume 0 != test_~tmp___2~0; {5720#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:59:54,624 INFO L280 TraceCheckUtils]: 16: Hoare triple {5720#(= 0 ~methaneLevelCritical~0)} assume !(0 != ~pumpRunning~0); {5720#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:59:54,625 INFO L280 TraceCheckUtils]: 17: Hoare triple {5720#(= 0 ~methaneLevelCritical~0)} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret35, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; {5720#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:59:54,625 INFO L280 TraceCheckUtils]: 18: Hoare triple {5720#(= 0 ~methaneLevelCritical~0)} assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret53, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; {5720#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:59:54,626 INFO L280 TraceCheckUtils]: 19: Hoare triple {5720#(= 0 ~methaneLevelCritical~0)} assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~11 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; {5720#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:59:54,627 INFO L280 TraceCheckUtils]: 20: Hoare triple {5720#(= 0 ~methaneLevelCritical~0)} isHighWaterLevel_#t~ret53 := isHighWaterSensorDry_#res;assume -2147483648 <= isHighWaterLevel_#t~ret53 && isHighWaterLevel_#t~ret53 <= 2147483647;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret53;havoc isHighWaterLevel_#t~ret53; {5720#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:59:54,627 INFO L280 TraceCheckUtils]: 21: Hoare triple {5720#(= 0 ~methaneLevelCritical~0)} assume !(0 != isHighWaterLevel_~tmp~4);isHighWaterLevel_~tmp___0~0 := 1; {5720#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:59:54,628 INFO L280 TraceCheckUtils]: 22: Hoare triple {5720#(= 0 ~methaneLevelCritical~0)} isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; {5720#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:59:54,628 INFO L280 TraceCheckUtils]: 23: Hoare triple {5720#(= 0 ~methaneLevelCritical~0)} processEnvironment_#t~ret35 := isHighWaterLevel_#res;assume -2147483648 <= processEnvironment_#t~ret35 && processEnvironment_#t~ret35 <= 2147483647;processEnvironment_~tmp~3 := processEnvironment_#t~ret35;havoc processEnvironment_#t~ret35; {5720#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:59:54,629 INFO L280 TraceCheckUtils]: 24: Hoare triple {5720#(= 0 ~methaneLevelCritical~0)} assume 0 != processEnvironment_~tmp~3;~pumpRunning~0 := 1; {5720#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:59:54,630 INFO L280 TraceCheckUtils]: 25: Hoare triple {5720#(= 0 ~methaneLevelCritical~0)} havoc __utac_acc__Specification2_spec__2_#t~ret58, __utac_acc__Specification2_spec__2_#t~ret59, __utac_acc__Specification2_spec__2_~tmp~6, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~6;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;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; {5721#(= 0 |ULTIMATE.start_isMethaneLevelCritical_#res|)} is VALID [2020-07-28 18:59:54,631 INFO L280 TraceCheckUtils]: 26: Hoare triple {5721#(= 0 |ULTIMATE.start_isMethaneLevelCritical_#res|)} __utac_acc__Specification2_spec__2_#t~ret58 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification2_spec__2_#t~ret58 && __utac_acc__Specification2_spec__2_#t~ret58 <= 2147483647;__utac_acc__Specification2_spec__2_~tmp~6 := __utac_acc__Specification2_spec__2_#t~ret58;havoc __utac_acc__Specification2_spec__2_#t~ret58; {5722#(= 0 ULTIMATE.start___utac_acc__Specification2_spec__2_~tmp~6)} is VALID [2020-07-28 18:59:54,631 INFO L280 TraceCheckUtils]: 27: Hoare triple {5722#(= 0 ULTIMATE.start___utac_acc__Specification2_spec__2_~tmp~6)} assume 0 != __utac_acc__Specification2_spec__2_~tmp~6;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; {5719#false} is VALID [2020-07-28 18:59:54,632 INFO L280 TraceCheckUtils]: 28: Hoare triple {5719#false} __utac_acc__Specification2_spec__2_#t~ret59 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification2_spec__2_#t~ret59 && __utac_acc__Specification2_spec__2_#t~ret59 <= 2147483647;__utac_acc__Specification2_spec__2_~tmp___0~2 := __utac_acc__Specification2_spec__2_#t~ret59;havoc __utac_acc__Specification2_spec__2_#t~ret59; {5719#false} is VALID [2020-07-28 18:59:54,632 INFO L280 TraceCheckUtils]: 29: Hoare triple {5719#false} assume 0 != __utac_acc__Specification2_spec__2_~tmp___0~2; {5719#false} is VALID [2020-07-28 18:59:54,632 INFO L280 TraceCheckUtils]: 30: Hoare triple {5719#false} assume !(0 != ~methAndRunningLastTime~0);~methAndRunningLastTime~0 := 1; {5719#false} is VALID [2020-07-28 18:59:54,632 INFO L280 TraceCheckUtils]: 31: Hoare triple {5719#false} assume !false; {5719#false} is VALID [2020-07-28 18:59:54,633 INFO L280 TraceCheckUtils]: 32: Hoare triple {5719#false} assume test_~splverifierCounter~0 < 4; {5719#false} is VALID [2020-07-28 18:59:54,633 INFO L280 TraceCheckUtils]: 33: Hoare triple {5719#false} assume -2147483648 <= test_#t~nondet54 && test_#t~nondet54 <= 2147483647;test_~tmp~5 := test_#t~nondet54;havoc test_#t~nondet54; {5719#false} is VALID [2020-07-28 18:59:54,633 INFO L280 TraceCheckUtils]: 34: Hoare triple {5719#false} assume !(0 != test_~tmp~5); {5719#false} is VALID [2020-07-28 18:59:54,634 INFO L280 TraceCheckUtils]: 35: Hoare triple {5719#false} assume -2147483648 <= test_#t~nondet55 && test_#t~nondet55 <= 2147483647;test_~tmp___0~1 := test_#t~nondet55;havoc test_#t~nondet55; {5719#false} is VALID [2020-07-28 18:59:54,634 INFO L280 TraceCheckUtils]: 36: Hoare triple {5719#false} assume !(0 != test_~tmp___0~1); {5719#false} is VALID [2020-07-28 18:59:54,634 INFO L280 TraceCheckUtils]: 37: Hoare triple {5719#false} assume -2147483648 <= test_#t~nondet56 && test_#t~nondet56 <= 2147483647;test_~tmp___2~0 := test_#t~nondet56;havoc test_#t~nondet56; {5719#false} is VALID [2020-07-28 18:59:54,634 INFO L280 TraceCheckUtils]: 38: Hoare triple {5719#false} assume 0 != test_~tmp___2~0; {5719#false} is VALID [2020-07-28 18:59:54,634 INFO L280 TraceCheckUtils]: 39: Hoare triple {5719#false} assume 0 != ~pumpRunning~0; {5719#false} is VALID [2020-07-28 18:59:54,635 INFO L280 TraceCheckUtils]: 40: Hoare triple {5719#false} assume ~waterLevel~0 > 0;~waterLevel~0 := ~waterLevel~0 - 1; {5719#false} is VALID [2020-07-28 18:59:54,635 INFO L280 TraceCheckUtils]: 41: Hoare triple {5719#false} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret35, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; {5719#false} is VALID [2020-07-28 18:59:54,635 INFO L280 TraceCheckUtils]: 42: Hoare triple {5719#false} assume !(0 == ~pumpRunning~0); {5719#false} is VALID [2020-07-28 18:59:54,636 INFO L280 TraceCheckUtils]: 43: Hoare triple {5719#false} havoc __utac_acc__Specification2_spec__2_#t~ret58, __utac_acc__Specification2_spec__2_#t~ret59, __utac_acc__Specification2_spec__2_~tmp~6, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~6;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;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; {5719#false} is VALID [2020-07-28 18:59:54,636 INFO L280 TraceCheckUtils]: 44: Hoare triple {5719#false} __utac_acc__Specification2_spec__2_#t~ret58 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification2_spec__2_#t~ret58 && __utac_acc__Specification2_spec__2_#t~ret58 <= 2147483647;__utac_acc__Specification2_spec__2_~tmp~6 := __utac_acc__Specification2_spec__2_#t~ret58;havoc __utac_acc__Specification2_spec__2_#t~ret58; {5719#false} is VALID [2020-07-28 18:59:54,636 INFO L280 TraceCheckUtils]: 45: Hoare triple {5719#false} assume 0 != __utac_acc__Specification2_spec__2_~tmp~6;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; {5719#false} is VALID [2020-07-28 18:59:54,636 INFO L280 TraceCheckUtils]: 46: Hoare triple {5719#false} __utac_acc__Specification2_spec__2_#t~ret59 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification2_spec__2_#t~ret59 && __utac_acc__Specification2_spec__2_#t~ret59 <= 2147483647;__utac_acc__Specification2_spec__2_~tmp___0~2 := __utac_acc__Specification2_spec__2_#t~ret59;havoc __utac_acc__Specification2_spec__2_#t~ret59; {5719#false} is VALID [2020-07-28 18:59:54,637 INFO L280 TraceCheckUtils]: 47: Hoare triple {5719#false} assume 0 != __utac_acc__Specification2_spec__2_~tmp___0~2; {5719#false} is VALID [2020-07-28 18:59:54,637 INFO L280 TraceCheckUtils]: 48: Hoare triple {5719#false} assume 0 != ~methAndRunningLastTime~0; {5719#false} is VALID [2020-07-28 18:59:54,637 INFO L280 TraceCheckUtils]: 49: Hoare triple {5719#false} assume !false; {5719#false} is VALID [2020-07-28 18:59:54,640 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-28 18:59:54,640 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150003342] [2020-07-28 18:59:54,640 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:59:54,641 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 18:59:54,641 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053072675] [2020-07-28 18:59:54,641 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 50 [2020-07-28 18:59:54,642 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:59:54,642 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 18:59:54,706 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 48 edges. 48 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:59:54,706 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 18:59:54,706 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:59:54,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 18:59:54,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-28 18:59:54,706 INFO L87 Difference]: Start difference. First operand 159 states and 218 transitions. Second operand 5 states. [2020-07-28 18:59:56,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:59:56,693 INFO L93 Difference]: Finished difference Result 714 states and 984 transitions. [2020-07-28 18:59:56,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-28 18:59:56,693 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 50 [2020-07-28 18:59:56,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:59:56,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 18:59:56,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 269 transitions. [2020-07-28 18:59:56,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 18:59:56,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 269 transitions. [2020-07-28 18:59:56,697 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states and 269 transitions. [2020-07-28 18:59:56,967 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 269 edges. 269 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:59:56,993 INFO L225 Difference]: With dead ends: 714 [2020-07-28 18:59:56,994 INFO L226 Difference]: Without dead ends: 562 [2020-07-28 18:59:56,995 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-28 18:59:56,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2020-07-28 18:59:57,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 265. [2020-07-28 18:59:57,734 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:59:57,734 INFO L82 GeneralOperation]: Start isEquivalent. First operand 562 states. Second operand 265 states. [2020-07-28 18:59:57,734 INFO L74 IsIncluded]: Start isIncluded. First operand 562 states. Second operand 265 states. [2020-07-28 18:59:57,734 INFO L87 Difference]: Start difference. First operand 562 states. Second operand 265 states. [2020-07-28 18:59:57,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:59:57,755 INFO L93 Difference]: Finished difference Result 562 states and 760 transitions. [2020-07-28 18:59:57,755 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 760 transitions. [2020-07-28 18:59:57,756 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:59:57,757 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:59:57,757 INFO L74 IsIncluded]: Start isIncluded. First operand 265 states. Second operand 562 states. [2020-07-28 18:59:57,757 INFO L87 Difference]: Start difference. First operand 265 states. Second operand 562 states. [2020-07-28 18:59:57,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:59:57,777 INFO L93 Difference]: Finished difference Result 562 states and 760 transitions. [2020-07-28 18:59:57,777 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 760 transitions. [2020-07-28 18:59:57,778 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:59:57,778 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:59:57,778 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:59:57,778 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:59:57,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2020-07-28 18:59:57,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 356 transitions. [2020-07-28 18:59:57,786 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 356 transitions. Word has length 50 [2020-07-28 18:59:57,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:59:57,786 INFO L479 AbstractCegarLoop]: Abstraction has 265 states and 356 transitions. [2020-07-28 18:59:57,787 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 18:59:57,787 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 356 transitions. [2020-07-28 18:59:57,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-28 18:59:57,788 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:59:57,788 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 18:59:57,788 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-28 18:59:57,789 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:59:57,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:59:57,789 INFO L82 PathProgramCache]: Analyzing trace with hash 1646221848, now seen corresponding path program 1 times [2020-07-28 18:59:57,789 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:59:57,790 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380554217] [2020-07-28 18:59:57,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:59:57,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 18:59:57,834 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 18:59:57,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 18:59:57,890 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 18:59:57,971 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-28 18:59:57,971 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-28 18:59:57,971 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-28 18:59:58,185 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 18:59:58,185 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-28 18:59:58,185 WARN L170 areAnnotationChecker]: L719 has no Hoare annotation [2020-07-28 18:59:58,185 WARN L170 areAnnotationChecker]: L727 has no Hoare annotation [2020-07-28 18:59:58,185 WARN L170 areAnnotationChecker]: L824 has no Hoare annotation [2020-07-28 18:59:58,186 WARN L170 areAnnotationChecker]: L824 has no Hoare annotation [2020-07-28 18:59:58,186 WARN L170 areAnnotationChecker]: L800 has no Hoare annotation [2020-07-28 18:59:58,186 WARN L170 areAnnotationChecker]: L824-1 has no Hoare annotation [2020-07-28 18:59:58,186 WARN L170 areAnnotationChecker]: L661 has no Hoare annotation [2020-07-28 18:59:58,186 WARN L170 areAnnotationChecker]: L833 has no Hoare annotation [2020-07-28 18:59:58,186 WARN L170 areAnnotationChecker]: L672-1 has no Hoare annotation [2020-07-28 18:59:58,186 WARN L170 areAnnotationChecker]: L672-1 has no Hoare annotation [2020-07-28 18:59:58,186 WARN L170 areAnnotationChecker]: L672-1 has no Hoare annotation [2020-07-28 18:59:58,186 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 18:59:58,186 WARN L170 areAnnotationChecker]: L645 has no Hoare annotation [2020-07-28 18:59:58,186 WARN L170 areAnnotationChecker]: L598 has no Hoare annotation [2020-07-28 18:59:58,186 WARN L170 areAnnotationChecker]: L598 has no Hoare annotation [2020-07-28 18:59:58,187 WARN L170 areAnnotationChecker]: L424-1 has no Hoare annotation [2020-07-28 18:59:58,187 WARN L170 areAnnotationChecker]: L424-1 has no Hoare annotation [2020-07-28 18:59:58,187 WARN L170 areAnnotationChecker]: L599 has no Hoare annotation [2020-07-28 18:59:58,187 WARN L170 areAnnotationChecker]: L845-3 has no Hoare annotation [2020-07-28 18:59:58,187 WARN L170 areAnnotationChecker]: L845-3 has no Hoare annotation [2020-07-28 18:59:58,187 WARN L170 areAnnotationChecker]: L424-2 has no Hoare annotation [2020-07-28 18:59:58,187 WARN L170 areAnnotationChecker]: L424-2 has no Hoare annotation [2020-07-28 18:59:58,187 WARN L170 areAnnotationChecker]: L607 has no Hoare annotation [2020-07-28 18:59:58,187 WARN L170 areAnnotationChecker]: L607 has no Hoare annotation [2020-07-28 18:59:58,187 WARN L170 areAnnotationChecker]: L456-1 has no Hoare annotation [2020-07-28 18:59:58,187 WARN L170 areAnnotationChecker]: L456-1 has no Hoare annotation [2020-07-28 18:59:58,187 WARN L170 areAnnotationChecker]: L431-1 has no Hoare annotation [2020-07-28 18:59:58,188 WARN L170 areAnnotationChecker]: L857 has no Hoare annotation [2020-07-28 18:59:58,188 WARN L170 areAnnotationChecker]: L857 has no Hoare annotation [2020-07-28 18:59:58,188 WARN L170 areAnnotationChecker]: L607-1 has no Hoare annotation [2020-07-28 18:59:58,188 WARN L170 areAnnotationChecker]: L922-1 has no Hoare annotation [2020-07-28 18:59:58,188 WARN L170 areAnnotationChecker]: L922-1 has no Hoare annotation [2020-07-28 18:59:58,188 WARN L170 areAnnotationChecker]: L882-1 has no Hoare annotation [2020-07-28 18:59:58,188 WARN L170 areAnnotationChecker]: L617 has no Hoare annotation [2020-07-28 18:59:58,188 WARN L170 areAnnotationChecker]: L617 has no Hoare annotation [2020-07-28 18:59:58,188 WARN L170 areAnnotationChecker]: L927-1 has no Hoare annotation [2020-07-28 18:59:58,188 WARN L170 areAnnotationChecker]: L672-2 has no Hoare annotation [2020-07-28 18:59:58,188 WARN L170 areAnnotationChecker]: L672-2 has no Hoare annotation [2020-07-28 18:59:58,188 WARN L170 areAnnotationChecker]: L869 has no Hoare annotation [2020-07-28 18:59:58,189 WARN L170 areAnnotationChecker]: L869 has no Hoare annotation [2020-07-28 18:59:58,189 WARN L170 areAnnotationChecker]: L617-1 has no Hoare annotation [2020-07-28 18:59:58,189 WARN L170 areAnnotationChecker]: L558-3 has no Hoare annotation [2020-07-28 18:59:58,189 WARN L170 areAnnotationChecker]: L558-3 has no Hoare annotation [2020-07-28 18:59:58,189 WARN L170 areAnnotationChecker]: L509-1 has no Hoare annotation [2020-07-28 18:59:58,189 WARN L170 areAnnotationChecker]: L672-3 has no Hoare annotation [2020-07-28 18:59:58,189 WARN L170 areAnnotationChecker]: L627 has no Hoare annotation [2020-07-28 18:59:58,189 WARN L170 areAnnotationChecker]: L627 has no Hoare annotation [2020-07-28 18:59:58,189 WARN L170 areAnnotationChecker]: L558-5 has no Hoare annotation [2020-07-28 18:59:58,189 WARN L170 areAnnotationChecker]: L676-2 has no Hoare annotation [2020-07-28 18:59:58,189 WARN L170 areAnnotationChecker]: L676-2 has no Hoare annotation [2020-07-28 18:59:58,189 WARN L170 areAnnotationChecker]: L752-2 has no Hoare annotation [2020-07-28 18:59:58,190 WARN L170 areAnnotationChecker]: L752-2 has no Hoare annotation [2020-07-28 18:59:58,190 WARN L170 areAnnotationChecker]: L752-2 has no Hoare annotation [2020-07-28 18:59:58,190 WARN L170 areAnnotationChecker]: L633-1 has no Hoare annotation [2020-07-28 18:59:58,190 WARN L170 areAnnotationChecker]: L633-1 has no Hoare annotation [2020-07-28 18:59:58,190 WARN L170 areAnnotationChecker]: L633 has no Hoare annotation [2020-07-28 18:59:58,190 WARN L170 areAnnotationChecker]: L633 has no Hoare annotation [2020-07-28 18:59:58,190 WARN L170 areAnnotationChecker]: L564-1 has no Hoare annotation [2020-07-28 18:59:58,190 WARN L170 areAnnotationChecker]: L677-2 has no Hoare annotation [2020-07-28 18:59:58,190 WARN L170 areAnnotationChecker]: L677-2 has no Hoare annotation [2020-07-28 18:59:58,190 WARN L170 areAnnotationChecker]: L753 has no Hoare annotation [2020-07-28 18:59:58,190 WARN L170 areAnnotationChecker]: L845 has no Hoare annotation [2020-07-28 18:59:58,190 WARN L170 areAnnotationChecker]: L845 has no Hoare annotation [2020-07-28 18:59:58,190 WARN L170 areAnnotationChecker]: L424 has no Hoare annotation [2020-07-28 18:59:58,191 WARN L170 areAnnotationChecker]: L424 has no Hoare annotation [2020-07-28 18:59:58,191 WARN L170 areAnnotationChecker]: L572 has no Hoare annotation [2020-07-28 18:59:58,191 WARN L170 areAnnotationChecker]: L572 has no Hoare annotation [2020-07-28 18:59:58,191 WARN L170 areAnnotationChecker]: L460-1 has no Hoare annotation [2020-07-28 18:59:58,191 WARN L170 areAnnotationChecker]: L460-1 has no Hoare annotation [2020-07-28 18:59:58,191 WARN L170 areAnnotationChecker]: L736-1 has no Hoare annotation [2020-07-28 18:59:58,191 WARN L170 areAnnotationChecker]: L736-1 has no Hoare annotation [2020-07-28 18:59:58,191 WARN L170 areAnnotationChecker]: L756 has no Hoare annotation [2020-07-28 18:59:58,191 WARN L170 areAnnotationChecker]: L756 has no Hoare annotation [2020-07-28 18:59:58,191 WARN L170 areAnnotationChecker]: L456 has no Hoare annotation [2020-07-28 18:59:58,191 WARN L170 areAnnotationChecker]: L456 has no Hoare annotation [2020-07-28 18:59:58,191 WARN L170 areAnnotationChecker]: L431 has no Hoare annotation [2020-07-28 18:59:58,192 WARN L170 areAnnotationChecker]: L572-1 has no Hoare annotation [2020-07-28 18:59:58,192 WARN L170 areAnnotationChecker]: L756-1 has no Hoare annotation [2020-07-28 18:59:58,192 WARN L170 areAnnotationChecker]: L756-1 has no Hoare annotation [2020-07-28 18:59:58,192 WARN L170 areAnnotationChecker]: L922 has no Hoare annotation [2020-07-28 18:59:58,193 WARN L170 areAnnotationChecker]: L922 has no Hoare annotation [2020-07-28 18:59:58,193 WARN L170 areAnnotationChecker]: L882 has no Hoare annotation [2020-07-28 18:59:58,193 WARN L170 areAnnotationChecker]: L845-6 has no Hoare annotation [2020-07-28 18:59:58,193 WARN L170 areAnnotationChecker]: L845-6 has no Hoare annotation [2020-07-28 18:59:58,193 WARN L170 areAnnotationChecker]: L424-3 has no Hoare annotation [2020-07-28 18:59:58,193 WARN L170 areAnnotationChecker]: L424-3 has no Hoare annotation [2020-07-28 18:59:58,193 WARN L170 areAnnotationChecker]: L927 has no Hoare annotation [2020-07-28 18:59:58,193 WARN L170 areAnnotationChecker]: L672 has no Hoare annotation [2020-07-28 18:59:58,193 WARN L170 areAnnotationChecker]: L672 has no Hoare annotation [2020-07-28 18:59:58,193 WARN L170 areAnnotationChecker]: L456-2 has no Hoare annotation [2020-07-28 18:59:58,193 WARN L170 areAnnotationChecker]: L456-2 has no Hoare annotation [2020-07-28 18:59:58,193 WARN L170 areAnnotationChecker]: L431-2 has no Hoare annotation [2020-07-28 18:59:58,194 WARN L170 areAnnotationChecker]: L558 has no Hoare annotation [2020-07-28 18:59:58,194 WARN L170 areAnnotationChecker]: L558 has no Hoare annotation [2020-07-28 18:59:58,194 WARN L170 areAnnotationChecker]: L509 has no Hoare annotation [2020-07-28 18:59:58,194 WARN L170 areAnnotationChecker]: L922-2 has no Hoare annotation [2020-07-28 18:59:58,194 WARN L170 areAnnotationChecker]: L922-2 has no Hoare annotation [2020-07-28 18:59:58,194 WARN L170 areAnnotationChecker]: L882-2 has no Hoare annotation [2020-07-28 18:59:58,194 WARN L170 areAnnotationChecker]: L558-2 has no Hoare annotation [2020-07-28 18:59:58,194 WARN L170 areAnnotationChecker]: L676 has no Hoare annotation [2020-07-28 18:59:58,194 WARN L170 areAnnotationChecker]: L676 has no Hoare annotation [2020-07-28 18:59:58,194 WARN L170 areAnnotationChecker]: L927-2 has no Hoare annotation [2020-07-28 18:59:58,194 WARN L170 areAnnotationChecker]: L672-4 has no Hoare annotation [2020-07-28 18:59:58,194 WARN L170 areAnnotationChecker]: L672-4 has no Hoare annotation [2020-07-28 18:59:58,195 WARN L170 areAnnotationChecker]: L564 has no Hoare annotation [2020-07-28 18:59:58,195 WARN L170 areAnnotationChecker]: L677 has no Hoare annotation [2020-07-28 18:59:58,195 WARN L170 areAnnotationChecker]: L677 has no Hoare annotation [2020-07-28 18:59:58,195 WARN L170 areAnnotationChecker]: L558-6 has no Hoare annotation [2020-07-28 18:59:58,195 WARN L170 areAnnotationChecker]: L558-6 has no Hoare annotation [2020-07-28 18:59:58,195 WARN L170 areAnnotationChecker]: L509-2 has no Hoare annotation [2020-07-28 18:59:58,195 WARN L170 areAnnotationChecker]: L672-5 has no Hoare annotation [2020-07-28 18:59:58,195 WARN L170 areAnnotationChecker]: L460 has no Hoare annotation [2020-07-28 18:59:58,195 WARN L170 areAnnotationChecker]: L460 has no Hoare annotation [2020-07-28 18:59:58,195 WARN L170 areAnnotationChecker]: L736 has no Hoare annotation [2020-07-28 18:59:58,195 WARN L170 areAnnotationChecker]: L736 has no Hoare annotation [2020-07-28 18:59:58,195 WARN L170 areAnnotationChecker]: L558-8 has no Hoare annotation [2020-07-28 18:59:58,196 WARN L170 areAnnotationChecker]: L676-4 has no Hoare annotation [2020-07-28 18:59:58,196 WARN L170 areAnnotationChecker]: L676-4 has no Hoare annotation [2020-07-28 18:59:58,196 WARN L170 areAnnotationChecker]: L564-2 has no Hoare annotation [2020-07-28 18:59:58,196 WARN L170 areAnnotationChecker]: L677-4 has no Hoare annotation [2020-07-28 18:59:58,196 WARN L170 areAnnotationChecker]: L677-4 has no Hoare annotation [2020-07-28 18:59:58,196 WARN L170 areAnnotationChecker]: L460-2 has no Hoare annotation [2020-07-28 18:59:58,196 WARN L170 areAnnotationChecker]: L460-2 has no Hoare annotation [2020-07-28 18:59:58,196 WARN L170 areAnnotationChecker]: L736-2 has no Hoare annotation [2020-07-28 18:59:58,196 WARN L170 areAnnotationChecker]: L736-2 has no Hoare annotation [2020-07-28 18:59:58,197 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-28 18:59:58,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 06:59:58 BoogieIcfgContainer [2020-07-28 18:59:58,201 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 18:59:58,201 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 18:59:58,201 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 18:59:58,202 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 18:59:58,202 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 06:59:44" (3/4) ... [2020-07-28 18:59:58,204 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-07-28 18:59:58,387 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 18:59:58,387 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 18:59:58,391 INFO L168 Benchmark]: Toolchain (without parser) took 15967.38 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 402.1 MB). Free memory was 962.9 MB in the beginning and 1.2 GB in the end (delta: -249.7 MB). Peak memory consumption was 152.5 MB. Max. memory is 11.5 GB. [2020-07-28 18:59:58,391 INFO L168 Benchmark]: CDTParser took 0.68 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 18:59:58,392 INFO L168 Benchmark]: CACSL2BoogieTranslator took 682.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 957.5 MB in the beginning and 1.1 GB in the end (delta: -154.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2020-07-28 18:59:58,392 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.42 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 18:59:58,393 INFO L168 Benchmark]: Boogie Preprocessor took 53.95 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 18:59:58,393 INFO L168 Benchmark]: RCFGBuilder took 1441.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 959.0 MB in the end (delta: 146.8 MB). Peak memory consumption was 146.8 MB. Max. memory is 11.5 GB. [2020-07-28 18:59:58,394 INFO L168 Benchmark]: TraceAbstraction took 13519.76 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 264.2 MB). Free memory was 959.0 MB in the beginning and 1.3 GB in the end (delta: -299.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 18:59:58,394 INFO L168 Benchmark]: Witness Printer took 186.18 ms. Allocated memory is still 1.4 GB. Free memory was 1.3 GB in the beginning and 1.2 GB in the end (delta: 45.8 MB). Peak memory consumption was 45.8 MB. Max. memory is 11.5 GB. [2020-07-28 18:59:58,397 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 0.68 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 682.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 957.5 MB in the beginning and 1.1 GB in the end (delta: -154.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 76.42 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 53.95 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 1441.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 959.0 MB in the end (delta: 146.8 MB). Peak memory consumption was 146.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 13519.76 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 264.2 MB). Free memory was 959.0 MB in the beginning and 1.3 GB in the end (delta: -299.3 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 186.18 ms. Allocated memory is still 1.4 GB. Free memory was 1.3 GB in the beginning and 1.2 GB in the end (delta: 45.8 MB). Peak memory consumption was 45.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 736]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L416] int pumpRunning = 0; [L417] int systemActive = 1; [L655] int methAndRunningLastTime ; [L741] int cleanupTimeShifts = 4; [L839] int waterLevel = 1; [L840] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L815] int retValue_acc ; [L816] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L723] int retValue_acc ; [L726] retValue_acc = 1 [L727] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L822] tmp = valid_product() [L824] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L660] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L588] int splverifierCounter ; [L589] int tmp ; [L590] int tmp___0 ; [L591] int tmp___1 ; [L592] int tmp___2 ; [L595] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L597] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L599] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L605] tmp = __VERIFIER_nondet_int() [L607] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L857] COND TRUE waterLevel < 2 [L858] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L615] tmp___0 = __VERIFIER_nondet_int() [L617] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L869] COND FALSE !(\read(methaneLevelCritical)) [L872] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L625] tmp___2 = __VERIFIER_nondet_int() [L627] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L424] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L431] COND TRUE \read(systemActive) [L453] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L456] COND TRUE ! pumpRunning [L550] int retValue_acc ; [L551] int tmp ; [L552] int tmp___0 ; [L919] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L922] COND FALSE !(waterLevel < 2) [L926] retValue_acc = 0 [L927] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L556] tmp = isHighWaterSensorDry() [L558] COND FALSE !(\read(tmp)) [L561] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L563] retValue_acc = tmp___0 [L564] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L458] tmp = isHighWaterLevel() [L460] COND TRUE \read(tmp) [L481] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L665] int tmp ; [L666] int tmp___0 ; [L878] int retValue_acc ; [L881] retValue_acc = methaneLevelCritical [L882] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L670] tmp = isMethaneLevelCritical() [L672] COND TRUE \read(tmp) [L505] int retValue_acc ; [L508] retValue_acc = pumpRunning [L509] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L674] tmp___0 = isPumpRunning() [L676] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L677] COND FALSE !(\read(methAndRunningLastTime)) [L682] methAndRunningLastTime = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L597] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L599] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L605] tmp = __VERIFIER_nondet_int() [L607] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L615] tmp___0 = __VERIFIER_nondet_int() [L617] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L625] tmp___2 = __VERIFIER_nondet_int() [L627] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L424] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L845] COND TRUE waterLevel > 0 [L846] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L431] COND TRUE \read(systemActive) [L453] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L456] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L665] int tmp ; [L666] int tmp___0 ; [L878] int retValue_acc ; [L881] retValue_acc = methaneLevelCritical [L882] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L670] tmp = isMethaneLevelCritical() [L672] COND TRUE \read(tmp) [L505] int retValue_acc ; [L508] retValue_acc = pumpRunning [L509] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L674] tmp___0 = isPumpRunning() [L676] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L677] COND TRUE \read(methAndRunningLastTime) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L736] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 84 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 13.2s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 8.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 707 SDtfs, 993 SDslu, 1211 SDs, 0 SdLazy, 134 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=265occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 630 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 339 NumberOfCodeBlocks, 339 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 278 ConstructedInterpolants, 0 QuantifiedInterpolants, 17360 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 17/17 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...