./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_productSimulator.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec1_productSimulator.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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b1532eb84511f08efccba1f71db5d8156ba5c802 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.25-9a8b2e8 [2020-10-20 01:42:00,785 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 01:42:00,787 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 01:42:00,814 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 01:42:00,814 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 01:42:00,816 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 01:42:00,817 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 01:42:00,819 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 01:42:00,820 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 01:42:00,821 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 01:42:00,822 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 01:42:00,823 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 01:42:00,823 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 01:42:00,824 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 01:42:00,825 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 01:42:00,826 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 01:42:00,827 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 01:42:00,828 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 01:42:00,830 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 01:42:00,832 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 01:42:00,834 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 01:42:00,844 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 01:42:00,845 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 01:42:00,846 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 01:42:00,851 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 01:42:00,851 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 01:42:00,851 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 01:42:00,853 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 01:42:00,853 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 01:42:00,854 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 01:42:00,854 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 01:42:00,855 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 01:42:00,856 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 01:42:00,856 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 01:42:00,857 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 01:42:00,857 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 01:42:00,858 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 01:42:00,858 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 01:42:00,858 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 01:42:00,859 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 01:42:00,860 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 01:42:00,861 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 01:42:00,884 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 01:42:00,884 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 01:42:00,885 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 01:42:00,886 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 01:42:00,886 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 01:42:00,886 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 01:42:00,886 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 01:42:00,886 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 01:42:00,887 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 01:42:00,887 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 01:42:00,887 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 01:42:00,887 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 01:42:00,887 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 01:42:00,888 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 01:42:00,888 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 01:42:00,888 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 01:42:00,888 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 01:42:00,888 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 01:42:00,888 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 01:42:00,889 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 01:42:00,889 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 01:42:00,889 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:42:00,889 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 01:42:00,889 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 01:42:00,890 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 01:42:00,890 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 01:42:00,890 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 01:42:00,890 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 01:42:00,890 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 01:42:00,891 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(reach_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 -> b1532eb84511f08efccba1f71db5d8156ba5c802 [2020-10-20 01:42:01,103 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 01:42:01,116 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 01:42:01,119 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 01:42:01,121 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 01:42:01,121 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 01:42:01,122 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_productSimulator.cil.c [2020-10-20 01:42:01,199 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/488e20ced/b56a030b7c1247eb9c5bbe5dec95ab26/FLAG14733a778 [2020-10-20 01:42:01,815 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 01:42:01,816 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_productSimulator.cil.c [2020-10-20 01:42:01,828 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/488e20ced/b56a030b7c1247eb9c5bbe5dec95ab26/FLAG14733a778 [2020-10-20 01:42:02,109 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/488e20ced/b56a030b7c1247eb9c5bbe5dec95ab26 [2020-10-20 01:42:02,114 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 01:42:02,121 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 01:42:02,125 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 01:42:02,125 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 01:42:02,129 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 01:42:02,129 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:42:02" (1/1) ... [2020-10-20 01:42:02,133 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70d145c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:02, skipping insertion in model container [2020-10-20 01:42:02,134 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:42:02" (1/1) ... [2020-10-20 01:42:02,143 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 01:42:02,213 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 01:42:02,594 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:42:02,614 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 01:42:02,703 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:42:02,775 INFO L208 MainTranslator]: Completed translation [2020-10-20 01:42:02,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:02 WrapperNode [2020-10-20 01:42:02,777 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 01:42:02,778 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 01:42:02,779 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 01:42:02,779 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 01:42:02,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:02" (1/1) ... [2020-10-20 01:42:02,812 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:02" (1/1) ... [2020-10-20 01:42:02,970 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 01:42:02,970 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 01:42:02,971 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 01:42:02,971 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 01:42:02,982 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:02" (1/1) ... [2020-10-20 01:42:02,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:02" (1/1) ... [2020-10-20 01:42:02,998 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:02" (1/1) ... [2020-10-20 01:42:02,998 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:02" (1/1) ... [2020-10-20 01:42:03,037 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:02" (1/1) ... [2020-10-20 01:42:03,058 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:02" (1/1) ... [2020-10-20 01:42:03,067 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:02" (1/1) ... [2020-10-20 01:42:03,082 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 01:42:03,083 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 01:42:03,083 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 01:42:03,083 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 01:42:03,084 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:02" (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 [2020-10-20 01:42:03,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 01:42:03,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 01:42:03,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 01:42:03,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 01:42:05,356 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 01:42:05,357 INFO L298 CfgBuilder]: Removed 906 assume(true) statements. [2020-10-20 01:42:05,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:42:05 BoogieIcfgContainer [2020-10-20 01:42:05,362 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 01:42:05,365 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 01:42:05,366 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 01:42:05,370 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 01:42:05,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 01:42:02" (1/3) ... [2020-10-20 01:42:05,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ad9c9e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:42:05, skipping insertion in model container [2020-10-20 01:42:05,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:02" (2/3) ... [2020-10-20 01:42:05,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ad9c9e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:42:05, skipping insertion in model container [2020-10-20 01:42:05,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:42:05" (3/3) ... [2020-10-20 01:42:05,375 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_productSimulator.cil.c [2020-10-20 01:42:05,387 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 01:42:05,394 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-20 01:42:05,409 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-20 01:42:05,439 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 01:42:05,440 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 01:42:05,440 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 01:42:05,440 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 01:42:05,441 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 01:42:05,441 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 01:42:05,441 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 01:42:05,441 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 01:42:05,482 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states. [2020-10-20 01:42:05,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-20 01:42:05,489 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:05,490 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:42:05,490 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:05,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:05,497 INFO L82 PathProgramCache]: Analyzing trace with hash 169180442, now seen corresponding path program 1 times [2020-10-20 01:42:05,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:05,505 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519663860] [2020-10-20 01:42:05,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:05,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:05,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:42:05,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519663860] [2020-10-20 01:42:05,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:05,848 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:42:05,848 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676931601] [2020-10-20 01:42:05,853 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 01:42:05,853 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:05,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 01:42:05,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 01:42:05,868 INFO L87 Difference]: Start difference. First operand 473 states. Second operand 2 states. [2020-10-20 01:42:05,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:05,951 INFO L93 Difference]: Finished difference Result 930 states and 1457 transitions. [2020-10-20 01:42:05,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 01:42:05,953 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2020-10-20 01:42:05,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:05,971 INFO L225 Difference]: With dead ends: 930 [2020-10-20 01:42:05,971 INFO L226 Difference]: Without dead ends: 466 [2020-10-20 01:42:05,977 INFO L677 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 [2020-10-20 01:42:05,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2020-10-20 01:42:06,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 466. [2020-10-20 01:42:06,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 466 states. [2020-10-20 01:42:06,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 722 transitions. [2020-10-20 01:42:06,065 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 722 transitions. Word has length 23 [2020-10-20 01:42:06,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:06,066 INFO L481 AbstractCegarLoop]: Abstraction has 466 states and 722 transitions. [2020-10-20 01:42:06,066 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 01:42:06,066 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 722 transitions. [2020-10-20 01:42:06,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-20 01:42:06,068 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:06,068 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] [2020-10-20 01:42:06,068 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 01:42:06,069 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:06,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:06,079 INFO L82 PathProgramCache]: Analyzing trace with hash -707980802, now seen corresponding path program 1 times [2020-10-20 01:42:06,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:06,080 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724653138] [2020-10-20 01:42:06,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:06,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:06,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:42:06,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724653138] [2020-10-20 01:42:06,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:06,245 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:42:06,246 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671441691] [2020-10-20 01:42:06,247 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:42:06,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:06,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:42:06,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:42:06,248 INFO L87 Difference]: Start difference. First operand 466 states and 722 transitions. Second operand 3 states. [2020-10-20 01:42:06,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:06,273 INFO L93 Difference]: Finished difference Result 466 states and 722 transitions. [2020-10-20 01:42:06,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:42:06,274 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-10-20 01:42:06,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:06,276 INFO L225 Difference]: With dead ends: 466 [2020-10-20 01:42:06,276 INFO L226 Difference]: Without dead ends: 172 [2020-10-20 01:42:06,279 INFO L677 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 [2020-10-20 01:42:06,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-10-20 01:42:06,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2020-10-20 01:42:06,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-10-20 01:42:06,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 263 transitions. [2020-10-20 01:42:06,292 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 263 transitions. Word has length 24 [2020-10-20 01:42:06,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:06,292 INFO L481 AbstractCegarLoop]: Abstraction has 172 states and 263 transitions. [2020-10-20 01:42:06,293 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:42:06,293 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 263 transitions. [2020-10-20 01:42:06,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-20 01:42:06,294 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:06,294 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] [2020-10-20 01:42:06,294 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 01:42:06,295 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:06,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:06,295 INFO L82 PathProgramCache]: Analyzing trace with hash -1978143563, now seen corresponding path program 1 times [2020-10-20 01:42:06,295 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:06,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904209323] [2020-10-20 01:42:06,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:06,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:06,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:42:06,398 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904209323] [2020-10-20 01:42:06,398 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:06,399 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:42:06,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346886809] [2020-10-20 01:42:06,400 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:42:06,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:06,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:42:06,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:42:06,402 INFO L87 Difference]: Start difference. First operand 172 states and 263 transitions. Second operand 3 states. [2020-10-20 01:42:06,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:06,435 INFO L93 Difference]: Finished difference Result 490 states and 763 transitions. [2020-10-20 01:42:06,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:42:06,435 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2020-10-20 01:42:06,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:06,438 INFO L225 Difference]: With dead ends: 490 [2020-10-20 01:42:06,438 INFO L226 Difference]: Without dead ends: 331 [2020-10-20 01:42:06,439 INFO L677 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 [2020-10-20 01:42:06,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2020-10-20 01:42:06,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 327. [2020-10-20 01:42:06,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 327 states. [2020-10-20 01:42:06,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 508 transitions. [2020-10-20 01:42:06,477 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 508 transitions. Word has length 30 [2020-10-20 01:42:06,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:06,478 INFO L481 AbstractCegarLoop]: Abstraction has 327 states and 508 transitions. [2020-10-20 01:42:06,478 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:42:06,478 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 508 transitions. [2020-10-20 01:42:06,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-20 01:42:06,480 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:06,480 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:42:06,481 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 01:42:06,481 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:06,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:06,482 INFO L82 PathProgramCache]: Analyzing trace with hash 1554604317, now seen corresponding path program 1 times [2020-10-20 01:42:06,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:06,482 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965486188] [2020-10-20 01:42:06,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:06,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:06,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:42:06,547 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965486188] [2020-10-20 01:42:06,547 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:06,547 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:42:06,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19149202] [2020-10-20 01:42:06,548 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:42:06,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:06,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:42:06,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:42:06,549 INFO L87 Difference]: Start difference. First operand 327 states and 508 transitions. Second operand 3 states. [2020-10-20 01:42:06,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:06,654 INFO L93 Difference]: Finished difference Result 662 states and 1041 transitions. [2020-10-20 01:42:06,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:42:06,655 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-10-20 01:42:06,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:06,657 INFO L225 Difference]: With dead ends: 662 [2020-10-20 01:42:06,658 INFO L226 Difference]: Without dead ends: 348 [2020-10-20 01:42:06,659 INFO L677 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 [2020-10-20 01:42:06,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-10-20 01:42:06,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 346. [2020-10-20 01:42:06,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-10-20 01:42:06,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 526 transitions. [2020-10-20 01:42:06,680 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 526 transitions. Word has length 33 [2020-10-20 01:42:06,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:06,680 INFO L481 AbstractCegarLoop]: Abstraction has 346 states and 526 transitions. [2020-10-20 01:42:06,680 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:42:06,680 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 526 transitions. [2020-10-20 01:42:06,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-20 01:42:06,682 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:06,682 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:42:06,683 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 01:42:06,683 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:06,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:06,684 INFO L82 PathProgramCache]: Analyzing trace with hash 965063802, now seen corresponding path program 1 times [2020-10-20 01:42:06,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:06,696 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015700197] [2020-10-20 01:42:06,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:06,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:06,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:42:06,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015700197] [2020-10-20 01:42:06,828 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:06,828 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:42:06,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30137284] [2020-10-20 01:42:06,829 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:42:06,829 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:06,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:42:06,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:42:06,831 INFO L87 Difference]: Start difference. First operand 346 states and 526 transitions. Second operand 5 states. [2020-10-20 01:42:07,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:07,143 INFO L93 Difference]: Finished difference Result 1934 states and 2999 transitions. [2020-10-20 01:42:07,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-20 01:42:07,144 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2020-10-20 01:42:07,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:07,155 INFO L225 Difference]: With dead ends: 1934 [2020-10-20 01:42:07,155 INFO L226 Difference]: Without dead ends: 1601 [2020-10-20 01:42:07,157 INFO L677 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 [2020-10-20 01:42:07,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1601 states. [2020-10-20 01:42:07,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1601 to 669. [2020-10-20 01:42:07,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 669 states. [2020-10-20 01:42:07,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 1018 transitions. [2020-10-20 01:42:07,207 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 1018 transitions. Word has length 33 [2020-10-20 01:42:07,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:07,207 INFO L481 AbstractCegarLoop]: Abstraction has 669 states and 1018 transitions. [2020-10-20 01:42:07,207 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:42:07,208 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 1018 transitions. [2020-10-20 01:42:07,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-20 01:42:07,209 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:07,209 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:42:07,210 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 01:42:07,210 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:07,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:07,210 INFO L82 PathProgramCache]: Analyzing trace with hash -1927811083, now seen corresponding path program 1 times [2020-10-20 01:42:07,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:07,211 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747705031] [2020-10-20 01:42:07,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:07,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:07,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:42:07,284 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747705031] [2020-10-20 01:42:07,284 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:07,284 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:42:07,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796856123] [2020-10-20 01:42:07,285 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:42:07,285 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:07,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:42:07,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:42:07,286 INFO L87 Difference]: Start difference. First operand 669 states and 1018 transitions. Second operand 5 states. [2020-10-20 01:42:07,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:07,651 INFO L93 Difference]: Finished difference Result 2147 states and 3281 transitions. [2020-10-20 01:42:07,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-20 01:42:07,652 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2020-10-20 01:42:07,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:07,663 INFO L225 Difference]: With dead ends: 2147 [2020-10-20 01:42:07,663 INFO L226 Difference]: Without dead ends: 2145 [2020-10-20 01:42:07,665 INFO L677 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 [2020-10-20 01:42:07,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2145 states. [2020-10-20 01:42:07,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2145 to 669. [2020-10-20 01:42:07,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 669 states. [2020-10-20 01:42:07,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 1016 transitions. [2020-10-20 01:42:07,717 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 1016 transitions. Word has length 34 [2020-10-20 01:42:07,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:07,718 INFO L481 AbstractCegarLoop]: Abstraction has 669 states and 1016 transitions. [2020-10-20 01:42:07,718 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:42:07,718 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 1016 transitions. [2020-10-20 01:42:07,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-20 01:42:07,720 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:07,720 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:42:07,720 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-20 01:42:07,720 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:07,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:07,721 INFO L82 PathProgramCache]: Analyzing trace with hash 1912385192, now seen corresponding path program 1 times [2020-10-20 01:42:07,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:07,721 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965574370] [2020-10-20 01:42:07,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:07,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:07,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:42:07,790 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965574370] [2020-10-20 01:42:07,790 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:07,791 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:42:07,791 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267748349] [2020-10-20 01:42:07,791 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:42:07,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:07,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:42:07,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:42:07,792 INFO L87 Difference]: Start difference. First operand 669 states and 1016 transitions. Second operand 5 states. [2020-10-20 01:42:08,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:08,020 INFO L93 Difference]: Finished difference Result 1677 states and 2527 transitions. [2020-10-20 01:42:08,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 01:42:08,021 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 42 [2020-10-20 01:42:08,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:08,027 INFO L225 Difference]: With dead ends: 1677 [2020-10-20 01:42:08,027 INFO L226 Difference]: Without dead ends: 1021 [2020-10-20 01:42:08,029 INFO L677 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 [2020-10-20 01:42:08,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1021 states. [2020-10-20 01:42:08,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1021 to 765. [2020-10-20 01:42:08,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 765 states. [2020-10-20 01:42:08,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 1112 transitions. [2020-10-20 01:42:08,084 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 1112 transitions. Word has length 42 [2020-10-20 01:42:08,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:08,084 INFO L481 AbstractCegarLoop]: Abstraction has 765 states and 1112 transitions. [2020-10-20 01:42:08,084 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:42:08,084 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 1112 transitions. [2020-10-20 01:42:08,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-20 01:42:08,086 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:08,086 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:42:08,086 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-20 01:42:08,087 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:08,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:08,087 INFO L82 PathProgramCache]: Analyzing trace with hash -1681517526, now seen corresponding path program 1 times [2020-10-20 01:42:08,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:08,087 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445660743] [2020-10-20 01:42:08,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:08,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:08,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:42:08,142 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445660743] [2020-10-20 01:42:08,142 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:08,143 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:42:08,143 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457329615] [2020-10-20 01:42:08,143 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 01:42:08,143 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:08,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 01:42:08,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 01:42:08,144 INFO L87 Difference]: Start difference. First operand 765 states and 1112 transitions. Second operand 4 states. [2020-10-20 01:42:08,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:08,322 INFO L93 Difference]: Finished difference Result 1813 states and 2601 transitions. [2020-10-20 01:42:08,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 01:42:08,322 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 42 [2020-10-20 01:42:08,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:08,328 INFO L225 Difference]: With dead ends: 1813 [2020-10-20 01:42:08,328 INFO L226 Difference]: Without dead ends: 1061 [2020-10-20 01:42:08,330 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:42:08,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1061 states. [2020-10-20 01:42:08,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1061 to 829. [2020-10-20 01:42:08,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 829 states. [2020-10-20 01:42:08,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1176 transitions. [2020-10-20 01:42:08,379 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1176 transitions. Word has length 42 [2020-10-20 01:42:08,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:08,379 INFO L481 AbstractCegarLoop]: Abstraction has 829 states and 1176 transitions. [2020-10-20 01:42:08,379 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 01:42:08,380 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1176 transitions. [2020-10-20 01:42:08,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-20 01:42:08,381 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:08,381 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:42:08,382 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-20 01:42:08,382 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:08,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:08,383 INFO L82 PathProgramCache]: Analyzing trace with hash 2026643756, now seen corresponding path program 1 times [2020-10-20 01:42:08,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:08,383 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317892445] [2020-10-20 01:42:08,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:08,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:08,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:42:08,431 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317892445] [2020-10-20 01:42:08,431 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:08,431 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:42:08,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280700281] [2020-10-20 01:42:08,432 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:42:08,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:08,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:42:08,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:42:08,432 INFO L87 Difference]: Start difference. First operand 829 states and 1176 transitions. Second operand 3 states. [2020-10-20 01:42:08,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:08,552 INFO L93 Difference]: Finished difference Result 1877 states and 2649 transitions. [2020-10-20 01:42:08,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:42:08,553 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 42 [2020-10-20 01:42:08,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:08,559 INFO L225 Difference]: With dead ends: 1877 [2020-10-20 01:42:08,560 INFO L226 Difference]: Without dead ends: 1061 [2020-10-20 01:42:08,561 INFO L677 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 [2020-10-20 01:42:08,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1061 states. [2020-10-20 01:42:08,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1061 to 1061. [2020-10-20 01:42:08,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1061 states. [2020-10-20 01:42:08,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1061 states to 1061 states and 1466 transitions. [2020-10-20 01:42:08,629 INFO L78 Accepts]: Start accepts. Automaton has 1061 states and 1466 transitions. Word has length 42 [2020-10-20 01:42:08,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:08,629 INFO L481 AbstractCegarLoop]: Abstraction has 1061 states and 1466 transitions. [2020-10-20 01:42:08,629 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:42:08,630 INFO L276 IsEmpty]: Start isEmpty. Operand 1061 states and 1466 transitions. [2020-10-20 01:42:08,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-20 01:42:08,632 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:08,632 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:42:08,632 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-20 01:42:08,633 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:08,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:08,633 INFO L82 PathProgramCache]: Analyzing trace with hash -1499020087, now seen corresponding path program 1 times [2020-10-20 01:42:08,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:08,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181100360] [2020-10-20 01:42:08,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:08,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 01:42:08,745 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 01:42:08,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 01:42:08,830 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 01:42:08,916 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 01:42:08,916 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 01:42:08,917 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-20 01:42:09,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 01:42:09 BoogieIcfgContainer [2020-10-20 01:42:09,047 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 01:42:09,047 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 01:42:09,047 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 01:42:09,048 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 01:42:09,048 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:42:05" (3/4) ... [2020-10-20 01:42:09,051 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-20 01:42:09,232 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 01:42:09,232 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 01:42:09,236 INFO L168 Benchmark]: Toolchain (without parser) took 7118.69 ms. Allocated memory was 41.4 MB in the beginning and 105.9 MB in the end (delta: 64.5 MB). Free memory was 19.0 MB in the beginning and 23.3 MB in the end (delta: -4.3 MB). Peak memory consumption was 60.2 MB. Max. memory is 14.3 GB. [2020-10-20 01:42:09,236 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 31.5 MB. Free memory was 7.7 MB in the beginning and 7.7 MB in the end (delta: 45.5 kB). Peak memory consumption was 45.5 kB. Max. memory is 14.3 GB. [2020-10-20 01:42:09,237 INFO L168 Benchmark]: CACSL2BoogieTranslator took 652.40 ms. Allocated memory was 41.4 MB in the beginning and 43.5 MB in the end (delta: 2.1 MB). Free memory was 18.2 MB in the beginning and 18.9 MB in the end (delta: -714.4 kB). Peak memory consumption was 9.8 MB. Max. memory is 14.3 GB. [2020-10-20 01:42:09,237 INFO L168 Benchmark]: Boogie Procedure Inliner took 191.89 ms. Allocated memory was 43.5 MB in the beginning and 44.0 MB in the end (delta: 524.3 kB). Free memory was 18.9 MB in the beginning and 22.6 MB in the end (delta: -3.7 MB). Peak memory consumption was 11.2 MB. Max. memory is 14.3 GB. [2020-10-20 01:42:09,238 INFO L168 Benchmark]: Boogie Preprocessor took 112.02 ms. Allocated memory is still 44.0 MB. Free memory was 22.6 MB in the beginning and 15.2 MB in the end (delta: 7.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 14.3 GB. [2020-10-20 01:42:09,238 INFO L168 Benchmark]: RCFGBuilder took 2279.30 ms. Allocated memory was 44.0 MB in the beginning and 76.5 MB in the end (delta: 32.5 MB). Free memory was 15.2 MB in the beginning and 29.9 MB in the end (delta: -14.7 MB). Peak memory consumption was 28.3 MB. Max. memory is 14.3 GB. [2020-10-20 01:42:09,239 INFO L168 Benchmark]: TraceAbstraction took 3681.58 ms. Allocated memory was 76.5 MB in the beginning and 105.9 MB in the end (delta: 29.4 MB). Free memory was 29.9 MB in the beginning and 50.1 MB in the end (delta: -20.2 MB). Peak memory consumption was 42.0 MB. Max. memory is 14.3 GB. [2020-10-20 01:42:09,239 INFO L168 Benchmark]: Witness Printer took 185.57 ms. Allocated memory is still 105.9 MB. Free memory was 50.1 MB in the beginning and 23.3 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 14.3 GB. [2020-10-20 01:42:09,243 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 31.5 MB. Free memory was 7.7 MB in the beginning and 7.7 MB in the end (delta: 45.5 kB). Peak memory consumption was 45.5 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 652.40 ms. Allocated memory was 41.4 MB in the beginning and 43.5 MB in the end (delta: 2.1 MB). Free memory was 18.2 MB in the beginning and 18.9 MB in the end (delta: -714.4 kB). Peak memory consumption was 9.8 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 191.89 ms. Allocated memory was 43.5 MB in the beginning and 44.0 MB in the end (delta: 524.3 kB). Free memory was 18.9 MB in the beginning and 22.6 MB in the end (delta: -3.7 MB). Peak memory consumption was 11.2 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 112.02 ms. Allocated memory is still 44.0 MB. Free memory was 22.6 MB in the beginning and 15.2 MB in the end (delta: 7.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 14.3 GB. * RCFGBuilder took 2279.30 ms. Allocated memory was 44.0 MB in the beginning and 76.5 MB in the end (delta: 32.5 MB). Free memory was 15.2 MB in the beginning and 29.9 MB in the end (delta: -14.7 MB). Peak memory consumption was 28.3 MB. Max. memory is 14.3 GB. * TraceAbstraction took 3681.58 ms. Allocated memory was 76.5 MB in the beginning and 105.9 MB in the end (delta: 29.4 MB). Free memory was 29.9 MB in the beginning and 50.1 MB in the end (delta: -20.2 MB). Peak memory consumption was 42.0 MB. Max. memory is 14.3 GB. * Witness Printer took 185.57 ms. Allocated memory is still 105.9 MB. Free memory was 50.1 MB in the beginning and 23.3 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L42] int __SELECTED_FEATURE_base ; [L43] int __SELECTED_FEATURE_highWaterSensor ; [L44] int __SELECTED_FEATURE_lowWaterSensor ; [L45] int __SELECTED_FEATURE_methaneQuery ; [L46] int __SELECTED_FEATURE_methaneAlarm ; [L47] int __SELECTED_FEATURE_stopCommand ; [L48] int __SELECTED_FEATURE_startCommand ; [L49] int __GUIDSL_ROOT_PRODUCTION ; [L142] int pumpRunning = 0; [L143] int systemActive = 1; [L643] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L916] int waterLevel = 1; [L917] int methaneLevelCritical = 0; [L1028] int cleanupTimeShifts = 4; VAL [__GUIDSL_ROOT_PRODUCTION=0, __SELECTED_FEATURE_base=0, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1101] int retValue_acc ; [L1102] int tmp ; [L874] __GUIDSL_ROOT_PRODUCTION = 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=0, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L859] __SELECTED_FEATURE_base = 1 [L845] int retValue_acc ; [L846] int choice = __VERIFIER_nondet_int(); [L849] retValue_acc = choice [L850] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L860] __SELECTED_FEATURE_highWaterSensor = select_one() [L845] int retValue_acc ; [L846] int choice = __VERIFIER_nondet_int(); [L849] retValue_acc = choice [L850] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L861] __SELECTED_FEATURE_lowWaterSensor = select_one() [L845] int retValue_acc ; [L846] int choice = __VERIFIER_nondet_int(); [L849] retValue_acc = choice [L850] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L862] __SELECTED_FEATURE_methaneQuery = select_one() [L845] int retValue_acc ; [L846] int choice = __VERIFIER_nondet_int(); [L849] retValue_acc = choice [L850] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L863] __SELECTED_FEATURE_methaneAlarm = select_one() [L845] int retValue_acc ; [L846] int choice = __VERIFIER_nondet_int(); [L849] retValue_acc = choice [L850] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L864] __SELECTED_FEATURE_stopCommand = select_one() [L845] int retValue_acc ; [L846] int choice = __VERIFIER_nondet_int(); [L849] retValue_acc = choice [L850] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L865] __SELECTED_FEATURE_startCommand = select_one() [L879] int retValue_acc ; [L882] retValue_acc = __SELECTED_FEATURE_base [L883] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1108] tmp = valid_product() [L1110] COND TRUE \read(tmp) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L57] int splverifierCounter ; [L58] int tmp ; [L59] int tmp___0 ; [L60] int tmp___1 ; [L61] int tmp___2 ; [L64] splverifierCounter = 0 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L66] COND TRUE 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L68] COND TRUE splverifierCounter < 4 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L74] tmp = __VERIFIER_nondet_int() [L76] COND TRUE \read(tmp) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L934] COND TRUE waterLevel < 2 [L935] waterLevel = waterLevel + 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L84] tmp___0 = __VERIFIER_nondet_int() [L86] COND TRUE \read(tmp___0) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L946] COND FALSE !(\read(methaneLevelCritical)) [L949] methaneLevelCritical = 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L94] tmp___2 = __VERIFIER_nondet_int() [L96] COND FALSE !(\read(tmp___2)) [L106] tmp___1 = __VERIFIER_nondet_int() [L108] COND FALSE !(\read(tmp___1)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L150] COND FALSE !(\read(pumpRunning)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L157] COND TRUE \read(systemActive) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L293] COND FALSE !(\read(__SELECTED_FEATURE_methaneAlarm)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L250] COND FALSE !(\read(__SELECTED_FEATURE_lowWaterSensor)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L207] COND TRUE \read(__SELECTED_FEATURE_highWaterSensor) [L179] int tmp ; VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L182] COND TRUE ! pumpRunning [L413] int retValue_acc ; [L414] int tmp ; [L415] int tmp___0 ; [L996] int retValue_acc ; VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L999] COND FALSE !(waterLevel < 2) [L1003] retValue_acc = 0 [L1004] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L419] tmp = isHighWaterSensorDry() [L421] COND FALSE !(\read(tmp)) [L424] tmp___0 = 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L426] retValue_acc = tmp___0 [L427] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L184] tmp = isHighWaterLevel() [L186] COND TRUE \read(tmp) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L335] COND FALSE !(\read(__SELECTED_FEATURE_methaneQuery)) [L310] pumpRunning = 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L890] int tmp ; [L891] int tmp___0 ; [L955] int retValue_acc ; [L958] retValue_acc = methaneLevelCritical [L959] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L895] tmp = isMethaneLevelCritical() [L897] COND TRUE \read(tmp) [L368] int retValue_acc ; [L371] retValue_acc = pumpRunning [L372] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L899] tmp___0 = isPumpRunning() [L901] COND TRUE \read(tmp___0) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L3] __assert_fail("0", "minepump_spec1_productSimulator.cil.c", 3, "reach_error") VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 473 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.4s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3078 SDtfs, 3156 SDslu, 3657 SDs, 0 SdLazy, 507 SolverSat, 138 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1061occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 2902 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 346 NumberOfCodeBlocks, 346 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 294 ConstructedInterpolants, 0 QuantifiedInterpolants, 19688 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...