./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product46.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -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_spec4_product46.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 209a5f451d4da606f6f89775a0cb8490169e98a1 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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-f470102 [2019-11-28 17:26:58,422 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 17:26:58,425 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 17:26:58,437 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 17:26:58,437 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 17:26:58,439 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 17:26:58,440 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 17:26:58,442 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 17:26:58,444 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 17:26:58,445 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 17:26:58,449 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 17:26:58,450 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 17:26:58,451 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 17:26:58,453 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 17:26:58,455 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 17:26:58,456 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 17:26:58,458 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 17:26:58,459 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 17:26:58,461 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 17:26:58,463 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 17:26:58,464 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 17:26:58,466 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 17:26:58,467 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 17:26:58,467 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 17:26:58,470 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 17:26:58,470 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 17:26:58,471 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 17:26:58,472 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 17:26:58,472 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 17:26:58,473 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 17:26:58,473 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 17:26:58,474 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 17:26:58,475 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 17:26:58,476 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 17:26:58,477 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 17:26:58,477 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 17:26:58,478 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 17:26:58,478 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 17:26:58,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 17:26:58,479 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 17:26:58,480 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 17:26:58,481 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 17:26:58,496 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 17:26:58,496 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 17:26:58,498 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 17:26:58,498 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 17:26:58,498 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 17:26:58,499 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 17:26:58,499 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 17:26:58,499 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 17:26:58,499 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 17:26:58,499 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 17:26:58,500 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 17:26:58,500 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 17:26:58,500 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 17:26:58,500 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 17:26:58,501 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 17:26:58,501 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 17:26:58,501 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 17:26:58,501 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 17:26:58,502 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 17:26:58,502 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 17:26:58,502 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 17:26:58,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 17:26:58,503 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 17:26:58,503 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 17:26:58,503 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 17:26:58,503 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 17:26:58,503 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 17:26:58,504 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 17:26:58,504 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 17:26:58,504 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 -> 209a5f451d4da606f6f89775a0cb8490169e98a1 [2019-11-28 17:26:58,793 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 17:26:58,810 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 17:26:58,814 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 17:26:58,815 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 17:26:58,816 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 17:26:58,817 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product46.cil.c [2019-11-28 17:26:58,886 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/464bdc898/23ac8467c23240279c00a6abfcf423b6/FLAG89598191a [2019-11-28 17:26:59,432 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 17:26:59,433 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product46.cil.c [2019-11-28 17:26:59,452 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/464bdc898/23ac8467c23240279c00a6abfcf423b6/FLAG89598191a [2019-11-28 17:26:59,727 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/464bdc898/23ac8467c23240279c00a6abfcf423b6 [2019-11-28 17:26:59,731 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 17:26:59,732 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 17:26:59,734 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 17:26:59,734 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 17:26:59,739 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 17:26:59,740 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:26:59" (1/1) ... [2019-11-28 17:26:59,743 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58cfce95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:26:59, skipping insertion in model container [2019-11-28 17:26:59,743 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:26:59" (1/1) ... [2019-11-28 17:26:59,752 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 17:26:59,804 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 17:27:00,241 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 17:27:00,263 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 17:27:00,342 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 17:27:00,381 INFO L208 MainTranslator]: Completed translation [2019-11-28 17:27:00,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:27:00 WrapperNode [2019-11-28 17:27:00,382 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 17:27:00,383 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 17:27:00,383 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 17:27:00,383 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 17:27:00,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:27:00" (1/1) ... [2019-11-28 17:27:00,424 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:27:00" (1/1) ... [2019-11-28 17:27:00,480 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 17:27:00,480 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 17:27:00,481 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 17:27:00,481 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 17:27:00,491 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:27:00" (1/1) ... [2019-11-28 17:27:00,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:27:00" (1/1) ... [2019-11-28 17:27:00,497 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:27:00" (1/1) ... [2019-11-28 17:27:00,497 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:27:00" (1/1) ... [2019-11-28 17:27:00,512 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:27:00" (1/1) ... [2019-11-28 17:27:00,523 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:27:00" (1/1) ... [2019-11-28 17:27:00,531 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:27:00" (1/1) ... [2019-11-28 17:27:00,544 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 17:27:00,545 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 17:27:00,547 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 17:27:00,547 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 17:27:00,549 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:27:00" (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 [2019-11-28 17:27:00,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 17:27:00,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 17:27:00,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 17:27:00,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 17:27:01,620 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 17:27:01,620 INFO L287 CfgBuilder]: Removed 194 assume(true) statements. [2019-11-28 17:27:01,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:27:01 BoogieIcfgContainer [2019-11-28 17:27:01,622 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 17:27:01,623 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 17:27:01,623 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 17:27:01,627 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 17:27:01,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:26:59" (1/3) ... [2019-11-28 17:27:01,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@327e423f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:27:01, skipping insertion in model container [2019-11-28 17:27:01,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:27:00" (2/3) ... [2019-11-28 17:27:01,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@327e423f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:27:01, skipping insertion in model container [2019-11-28 17:27:01,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:27:01" (3/3) ... [2019-11-28 17:27:01,632 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product46.cil.c [2019-11-28 17:27:01,643 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 17:27:01,653 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-28 17:27:01,666 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-28 17:27:01,699 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 17:27:01,699 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 17:27:01,700 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 17:27:01,700 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 17:27:01,700 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 17:27:01,701 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 17:27:01,701 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 17:27:01,701 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 17:27:01,722 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states. [2019-11-28 17:27:01,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-28 17:27:01,730 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:27:01,731 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 17:27:01,732 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:27:01,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:27:01,739 INFO L82 PathProgramCache]: Analyzing trace with hash -1027746333, now seen corresponding path program 1 times [2019-11-28 17:27:01,749 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:27:01,749 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140408660] [2019-11-28 17:27:01,750 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:27:01,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:27:02,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:27:02,021 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140408660] [2019-11-28 17:27:02,023 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:27:02,023 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 17:27:02,024 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218775188] [2019-11-28 17:27:02,030 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-28 17:27:02,030 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:27:02,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-28 17:27:02,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 17:27:02,049 INFO L87 Difference]: Start difference. First operand 129 states. Second operand 2 states. [2019-11-28 17:27:02,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:27:02,089 INFO L93 Difference]: Finished difference Result 252 states and 377 transitions. [2019-11-28 17:27:02,090 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-28 17:27:02,091 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-11-28 17:27:02,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:27:02,105 INFO L225 Difference]: With dead ends: 252 [2019-11-28 17:27:02,105 INFO L226 Difference]: Without dead ends: 125 [2019-11-28 17:27:02,109 INFO L630 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 [2019-11-28 17:27:02,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2019-11-28 17:27:02,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2019-11-28 17:27:02,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2019-11-28 17:27:02,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 180 transitions. [2019-11-28 17:27:02,157 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 180 transitions. Word has length 16 [2019-11-28 17:27:02,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:27:02,157 INFO L462 AbstractCegarLoop]: Abstraction has 125 states and 180 transitions. [2019-11-28 17:27:02,157 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-28 17:27:02,158 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 180 transitions. [2019-11-28 17:27:02,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-28 17:27:02,159 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:27:02,159 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 17:27:02,160 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:27:02,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:27:02,160 INFO L82 PathProgramCache]: Analyzing trace with hash -2074503230, now seen corresponding path program 1 times [2019-11-28 17:27:02,160 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:27:02,161 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400164914] [2019-11-28 17:27:02,161 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:27:02,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:27:02,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:27:02,291 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400164914] [2019-11-28 17:27:02,291 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:27:02,292 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 17:27:02,292 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297328925] [2019-11-28 17:27:02,294 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 17:27:02,294 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:27:02,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 17:27:02,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 17:27:02,295 INFO L87 Difference]: Start difference. First operand 125 states and 180 transitions. Second operand 3 states. [2019-11-28 17:27:02,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:27:02,310 INFO L93 Difference]: Finished difference Result 125 states and 180 transitions. [2019-11-28 17:27:02,310 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 17:27:02,311 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-11-28 17:27:02,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:27:02,312 INFO L225 Difference]: With dead ends: 125 [2019-11-28 17:27:02,312 INFO L226 Difference]: Without dead ends: 51 [2019-11-28 17:27:02,313 INFO L630 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 [2019-11-28 17:27:02,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2019-11-28 17:27:02,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2019-11-28 17:27:02,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2019-11-28 17:27:02,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 73 transitions. [2019-11-28 17:27:02,321 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 73 transitions. Word has length 17 [2019-11-28 17:27:02,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:27:02,321 INFO L462 AbstractCegarLoop]: Abstraction has 51 states and 73 transitions. [2019-11-28 17:27:02,321 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 17:27:02,321 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 73 transitions. [2019-11-28 17:27:02,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-28 17:27:02,323 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:27:02,323 INFO L410 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] [2019-11-28 17:27:02,324 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:27:02,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:27:02,324 INFO L82 PathProgramCache]: Analyzing trace with hash 640818778, now seen corresponding path program 1 times [2019-11-28 17:27:02,324 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:27:02,325 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880962623] [2019-11-28 17:27:02,325 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:27:02,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:27:02,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:27:02,444 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880962623] [2019-11-28 17:27:02,444 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:27:02,445 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 17:27:02,445 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863614421] [2019-11-28 17:27:02,446 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 17:27:02,446 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:27:02,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 17:27:02,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 17:27:02,449 INFO L87 Difference]: Start difference. First operand 51 states and 73 transitions. Second operand 5 states. [2019-11-28 17:27:02,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:27:02,530 INFO L93 Difference]: Finished difference Result 96 states and 140 transitions. [2019-11-28 17:27:02,532 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 17:27:02,533 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-28 17:27:02,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:27:02,534 INFO L225 Difference]: With dead ends: 96 [2019-11-28 17:27:02,534 INFO L226 Difference]: Without dead ends: 51 [2019-11-28 17:27:02,536 INFO L630 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 [2019-11-28 17:27:02,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2019-11-28 17:27:02,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2019-11-28 17:27:02,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2019-11-28 17:27:02,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 72 transitions. [2019-11-28 17:27:02,550 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 72 transitions. Word has length 22 [2019-11-28 17:27:02,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:27:02,551 INFO L462 AbstractCegarLoop]: Abstraction has 51 states and 72 transitions. [2019-11-28 17:27:02,551 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 17:27:02,551 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 72 transitions. [2019-11-28 17:27:02,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-28 17:27:02,552 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:27:02,552 INFO L410 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] [2019-11-28 17:27:02,554 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:27:02,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:27:02,557 INFO L82 PathProgramCache]: Analyzing trace with hash -855709928, now seen corresponding path program 1 times [2019-11-28 17:27:02,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:27:02,557 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777177014] [2019-11-28 17:27:02,558 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:27:02,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:27:02,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:27:02,683 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777177014] [2019-11-28 17:27:02,683 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:27:02,683 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 17:27:02,684 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444815326] [2019-11-28 17:27:02,684 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 17:27:02,684 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:27:02,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 17:27:02,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 17:27:02,686 INFO L87 Difference]: Start difference. First operand 51 states and 72 transitions. Second operand 3 states. [2019-11-28 17:27:02,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:27:02,749 INFO L93 Difference]: Finished difference Result 117 states and 168 transitions. [2019-11-28 17:27:02,750 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 17:27:02,750 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-11-28 17:27:02,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:27:02,751 INFO L225 Difference]: With dead ends: 117 [2019-11-28 17:27:02,751 INFO L226 Difference]: Without dead ends: 72 [2019-11-28 17:27:02,752 INFO L630 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 [2019-11-28 17:27:02,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2019-11-28 17:27:02,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 70. [2019-11-28 17:27:02,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2019-11-28 17:27:02,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 98 transitions. [2019-11-28 17:27:02,763 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 98 transitions. Word has length 24 [2019-11-28 17:27:02,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:27:02,763 INFO L462 AbstractCegarLoop]: Abstraction has 70 states and 98 transitions. [2019-11-28 17:27:02,764 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 17:27:02,764 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 98 transitions. [2019-11-28 17:27:02,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-28 17:27:02,765 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:27:02,765 INFO L410 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] [2019-11-28 17:27:02,765 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:27:02,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:27:02,766 INFO L82 PathProgramCache]: Analyzing trace with hash -407287284, now seen corresponding path program 1 times [2019-11-28 17:27:02,766 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:27:02,766 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535207753] [2019-11-28 17:27:02,767 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:27:02,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:27:02,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:27:02,854 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535207753] [2019-11-28 17:27:02,854 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:27:02,854 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 17:27:02,855 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110132929] [2019-11-28 17:27:02,855 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 17:27:02,855 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:27:02,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 17:27:02,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 17:27:02,856 INFO L87 Difference]: Start difference. First operand 70 states and 98 transitions. Second operand 5 states. [2019-11-28 17:27:02,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:27:02,973 INFO L93 Difference]: Finished difference Result 247 states and 354 transitions. [2019-11-28 17:27:02,974 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 17:27:02,974 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2019-11-28 17:27:02,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:27:02,976 INFO L225 Difference]: With dead ends: 247 [2019-11-28 17:27:02,976 INFO L226 Difference]: Without dead ends: 183 [2019-11-28 17:27:02,977 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-28 17:27:02,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2019-11-28 17:27:03,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 113. [2019-11-28 17:27:03,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-11-28 17:27:03,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 155 transitions. [2019-11-28 17:27:03,013 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 155 transitions. Word has length 30 [2019-11-28 17:27:03,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:27:03,013 INFO L462 AbstractCegarLoop]: Abstraction has 113 states and 155 transitions. [2019-11-28 17:27:03,013 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 17:27:03,014 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 155 transitions. [2019-11-28 17:27:03,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-28 17:27:03,020 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:27:03,020 INFO L410 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] [2019-11-28 17:27:03,020 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:27:03,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:27:03,021 INFO L82 PathProgramCache]: Analyzing trace with hash 1879863818, now seen corresponding path program 1 times [2019-11-28 17:27:03,021 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:27:03,022 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948250962] [2019-11-28 17:27:03,022 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:27:03,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:27:03,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:27:03,101 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948250962] [2019-11-28 17:27:03,101 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:27:03,102 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 17:27:03,102 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912370143] [2019-11-28 17:27:03,102 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 17:27:03,103 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:27:03,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 17:27:03,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 17:27:03,103 INFO L87 Difference]: Start difference. First operand 113 states and 155 transitions. Second operand 5 states. [2019-11-28 17:27:03,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:27:03,247 INFO L93 Difference]: Finished difference Result 241 states and 338 transitions. [2019-11-28 17:27:03,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-28 17:27:03,248 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-11-28 17:27:03,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:27:03,250 INFO L225 Difference]: With dead ends: 241 [2019-11-28 17:27:03,251 INFO L226 Difference]: Without dead ends: 239 [2019-11-28 17:27:03,251 INFO L630 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 [2019-11-28 17:27:03,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2019-11-28 17:27:03,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 113. [2019-11-28 17:27:03,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-11-28 17:27:03,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 154 transitions. [2019-11-28 17:27:03,273 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 154 transitions. Word has length 31 [2019-11-28 17:27:03,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:27:03,274 INFO L462 AbstractCegarLoop]: Abstraction has 113 states and 154 transitions. [2019-11-28 17:27:03,275 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 17:27:03,275 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 154 transitions. [2019-11-28 17:27:03,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-28 17:27:03,279 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:27:03,283 INFO L410 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] [2019-11-28 17:27:03,283 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:27:03,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:27:03,285 INFO L82 PathProgramCache]: Analyzing trace with hash 1871204221, now seen corresponding path program 1 times [2019-11-28 17:27:03,285 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:27:03,286 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472311502] [2019-11-28 17:27:03,288 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:27:03,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:27:03,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:27:03,377 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472311502] [2019-11-28 17:27:03,377 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:27:03,377 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 17:27:03,378 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878505308] [2019-11-28 17:27:03,378 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 17:27:03,378 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:27:03,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 17:27:03,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 17:27:03,379 INFO L87 Difference]: Start difference. First operand 113 states and 154 transitions. Second operand 5 states. [2019-11-28 17:27:03,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:27:03,469 INFO L93 Difference]: Finished difference Result 303 states and 412 transitions. [2019-11-28 17:27:03,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 17:27:03,470 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2019-11-28 17:27:03,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:27:03,473 INFO L225 Difference]: With dead ends: 303 [2019-11-28 17:27:03,474 INFO L226 Difference]: Without dead ends: 196 [2019-11-28 17:27:03,474 INFO L630 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 [2019-11-28 17:27:03,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2019-11-28 17:27:03,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 122. [2019-11-28 17:27:03,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2019-11-28 17:27:03,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 163 transitions. [2019-11-28 17:27:03,493 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 163 transitions. Word has length 34 [2019-11-28 17:27:03,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:27:03,494 INFO L462 AbstractCegarLoop]: Abstraction has 122 states and 163 transitions. [2019-11-28 17:27:03,495 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 17:27:03,495 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 163 transitions. [2019-11-28 17:27:03,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-28 17:27:03,500 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:27:03,501 INFO L410 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] [2019-11-28 17:27:03,501 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:27:03,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:27:03,502 INFO L82 PathProgramCache]: Analyzing trace with hash 1284398207, now seen corresponding path program 1 times [2019-11-28 17:27:03,502 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:27:03,503 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076791947] [2019-11-28 17:27:03,503 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:27:03,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:27:03,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:27:03,576 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076791947] [2019-11-28 17:27:03,576 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:27:03,576 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-28 17:27:03,577 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251814872] [2019-11-28 17:27:03,577 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 17:27:03,577 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:27:03,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 17:27:03,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-28 17:27:03,579 INFO L87 Difference]: Start difference. First operand 122 states and 163 transitions. Second operand 6 states. [2019-11-28 17:27:03,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:27:03,681 INFO L93 Difference]: Finished difference Result 281 states and 376 transitions. [2019-11-28 17:27:03,681 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-28 17:27:03,682 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2019-11-28 17:27:03,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:27:03,684 INFO L225 Difference]: With dead ends: 281 [2019-11-28 17:27:03,684 INFO L226 Difference]: Without dead ends: 165 [2019-11-28 17:27:03,685 INFO L630 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 [2019-11-28 17:27:03,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2019-11-28 17:27:03,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 104. [2019-11-28 17:27:03,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2019-11-28 17:27:03,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 136 transitions. [2019-11-28 17:27:03,702 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 136 transitions. Word has length 34 [2019-11-28 17:27:03,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:27:03,702 INFO L462 AbstractCegarLoop]: Abstraction has 104 states and 136 transitions. [2019-11-28 17:27:03,702 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 17:27:03,703 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 136 transitions. [2019-11-28 17:27:03,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-28 17:27:03,706 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:27:03,706 INFO L410 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] [2019-11-28 17:27:03,707 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:27:03,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:27:03,707 INFO L82 PathProgramCache]: Analyzing trace with hash 4534529, now seen corresponding path program 1 times [2019-11-28 17:27:03,707 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:27:03,708 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678331478] [2019-11-28 17:27:03,708 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:27:03,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:27:03,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:27:03,777 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678331478] [2019-11-28 17:27:03,777 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:27:03,779 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 17:27:03,779 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252846722] [2019-11-28 17:27:03,779 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 17:27:03,780 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:27:03,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 17:27:03,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 17:27:03,780 INFO L87 Difference]: Start difference. First operand 104 states and 136 transitions. Second operand 5 states. [2019-11-28 17:27:03,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:27:03,932 INFO L93 Difference]: Finished difference Result 283 states and 381 transitions. [2019-11-28 17:27:03,932 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 17:27:03,933 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2019-11-28 17:27:03,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:27:03,934 INFO L225 Difference]: With dead ends: 283 [2019-11-28 17:27:03,934 INFO L226 Difference]: Without dead ends: 209 [2019-11-28 17:27:03,935 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-28 17:27:03,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2019-11-28 17:27:03,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 145. [2019-11-28 17:27:03,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2019-11-28 17:27:03,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 188 transitions. [2019-11-28 17:27:03,955 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 188 transitions. Word has length 34 [2019-11-28 17:27:03,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:27:03,958 INFO L462 AbstractCegarLoop]: Abstraction has 145 states and 188 transitions. [2019-11-28 17:27:03,958 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 17:27:03,958 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 188 transitions. [2019-11-28 17:27:03,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-11-28 17:27:03,961 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:27:03,962 INFO L410 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2019-11-28 17:27:03,963 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:27:03,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:27:03,965 INFO L82 PathProgramCache]: Analyzing trace with hash 596801484, now seen corresponding path program 1 times [2019-11-28 17:27:03,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:27:03,965 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322794526] [2019-11-28 17:27:03,966 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:27:04,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:27:04,118 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:27:04,119 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322794526] [2019-11-28 17:27:04,120 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [273618740] [2019-11-28 17:27:04,120 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 17:27:04,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:27:04,273 INFO L264 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-28 17:27:04,281 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 17:27:04,314 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:27:04,315 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 17:27:04,315 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2019-11-28 17:27:04,315 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604431833] [2019-11-28 17:27:04,316 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 17:27:04,316 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:27:04,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 17:27:04,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-28 17:27:04,317 INFO L87 Difference]: Start difference. First operand 145 states and 188 transitions. Second operand 6 states. [2019-11-28 17:27:04,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:27:04,539 INFO L93 Difference]: Finished difference Result 449 states and 597 transitions. [2019-11-28 17:27:04,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-28 17:27:04,540 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 53 [2019-11-28 17:27:04,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:27:04,544 INFO L225 Difference]: With dead ends: 449 [2019-11-28 17:27:04,545 INFO L226 Difference]: Without dead ends: 334 [2019-11-28 17:27:04,546 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2019-11-28 17:27:04,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2019-11-28 17:27:04,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 197. [2019-11-28 17:27:04,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2019-11-28 17:27:04,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 258 transitions. [2019-11-28 17:27:04,574 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 258 transitions. Word has length 53 [2019-11-28 17:27:04,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:27:04,575 INFO L462 AbstractCegarLoop]: Abstraction has 197 states and 258 transitions. [2019-11-28 17:27:04,575 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 17:27:04,575 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 258 transitions. [2019-11-28 17:27:04,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-11-28 17:27:04,576 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:27:04,576 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-11-28 17:27:04,778 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 17:27:04,778 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:27:04,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:27:04,779 INFO L82 PathProgramCache]: Analyzing trace with hash -1994887391, now seen corresponding path program 2 times [2019-11-28 17:27:04,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:27:04,779 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351415978] [2019-11-28 17:27:04,779 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:27:04,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 17:27:04,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 17:27:05,040 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 17:27:05,041 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 17:27:05,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:27:05 BoogieIcfgContainer [2019-11-28 17:27:05,244 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 17:27:05,245 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 17:27:05,245 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 17:27:05,246 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 17:27:05,246 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:27:01" (3/4) ... [2019-11-28 17:27:05,250 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 17:27:05,492 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 17:27:05,492 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 17:27:05,495 INFO L168 Benchmark]: Toolchain (without parser) took 5761.85 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 225.4 MB). Free memory was 956.3 MB in the beginning and 1.0 GB in the end (delta: -91.0 MB). Peak memory consumption was 134.5 MB. Max. memory is 11.5 GB. [2019-11-28 17:27:05,496 INFO L168 Benchmark]: CDTParser took 0.70 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 17:27:05,496 INFO L168 Benchmark]: CACSL2BoogieTranslator took 648.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -164.0 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2019-11-28 17:27:05,497 INFO L168 Benchmark]: Boogie Procedure Inliner took 97.33 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. [2019-11-28 17:27:05,497 INFO L168 Benchmark]: Boogie Preprocessor took 64.03 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. [2019-11-28 17:27:05,498 INFO L168 Benchmark]: RCFGBuilder took 1077.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 71.7 MB). Peak memory consumption was 71.7 MB. Max. memory is 11.5 GB. [2019-11-28 17:27:05,498 INFO L168 Benchmark]: TraceAbstraction took 3621.44 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 86.5 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -44.3 MB). Peak memory consumption was 42.2 MB. Max. memory is 11.5 GB. [2019-11-28 17:27:05,498 INFO L168 Benchmark]: Witness Printer took 247.28 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2019-11-28 17:27:05,501 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.70 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 648.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -164.0 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 97.33 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. * Boogie Preprocessor took 64.03 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 1077.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 71.7 MB). Peak memory consumption was 71.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3621.44 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 86.5 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -44.3 MB). Peak memory consumption was 42.2 MB. Max. memory is 11.5 GB. * Witness Printer took 247.28 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 543]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L342] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L555] int pumpRunning = 0; [L556] int systemActive = 1; [L758] int waterLevel = 1; [L759] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L121] int retValue_acc ; [L122] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L945] int retValue_acc ; [L948] retValue_acc = 1 [L949] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L853] int splverifierCounter ; [L854] int tmp ; [L855] int tmp___0 ; [L856] int tmp___1 ; [L857] int tmp___2 ; [L860] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L862] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L864] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L870] tmp = __VERIFIER_nondet_int() [L872] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L776] COND TRUE waterLevel < 2 [L777] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L880] tmp___0 = __VERIFIER_nondet_int() [L882] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L890] tmp___2 = __VERIFIER_nondet_int() [L892] COND TRUE \read(tmp___2) [L753] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L562] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L569] COND TRUE \read(systemActive) [L617] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L620] COND FALSE !(\read(pumpRunning)) [L591] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L594] COND TRUE ! pumpRunning [L731] int retValue_acc ; [L732] int tmp ; [L733] int tmp___0 ; [L838] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L841] COND FALSE !(waterLevel < 2) [L845] retValue_acc = 0 [L846] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L737] tmp = isHighWaterSensorDry() [L739] COND FALSE !(\read(tmp)) [L742] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L744] retValue_acc = tmp___0 [L745] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L596] tmp = isHighWaterLevel() [L598] COND TRUE \read(tmp) [L650] int tmp ; [L675] int retValue_acc ; [L797] int retValue_acc ; [L800] retValue_acc = methaneLevelCritical [L801] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L679] retValue_acc = isMethaneLevelCritical() [L681] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L654] tmp = isMethaneAlarm() [L656] COND FALSE !(\read(tmp)) [L645] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L148] int tmp ; [L149] int tmp___0 ; [L829] int retValue_acc ; [L832] retValue_acc = waterLevel [L833] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L153] tmp = getWaterLevel() [L155] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L862] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L864] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L870] tmp = __VERIFIER_nondet_int() [L872] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L880] tmp___0 = __VERIFIER_nondet_int() [L882] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L890] tmp___2 = __VERIFIER_nondet_int() [L892] COND TRUE \read(tmp___2) [L753] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L562] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L764] COND TRUE waterLevel > 0 [L765] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L569] COND TRUE \read(systemActive) [L617] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L620] COND TRUE \read(pumpRunning) [L675] int retValue_acc ; [L797] int retValue_acc ; [L800] retValue_acc = methaneLevelCritical [L801] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L679] retValue_acc = isMethaneLevelCritical() [L681] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L622] tmp = isMethaneAlarm() [L624] COND FALSE !(\read(tmp)) [L591] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L594] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L148] int tmp ; [L149] int tmp___0 ; [L829] int retValue_acc ; [L832] retValue_acc = waterLevel [L833] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L153] tmp = getWaterLevel() [L155] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L862] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L864] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L870] tmp = __VERIFIER_nondet_int() [L872] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L880] tmp___0 = __VERIFIER_nondet_int() [L882] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L890] tmp___2 = __VERIFIER_nondet_int() [L892] COND TRUE \read(tmp___2) [L753] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L562] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L764] COND TRUE waterLevel > 0 [L765] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L569] COND TRUE \read(systemActive) [L617] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L620] COND TRUE \read(pumpRunning) [L675] int retValue_acc ; [L797] int retValue_acc ; [L800] retValue_acc = methaneLevelCritical [L801] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L679] retValue_acc = isMethaneLevelCritical() [L681] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L622] tmp = isMethaneAlarm() [L624] COND FALSE !(\read(tmp)) [L591] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L594] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L148] int tmp ; [L149] int tmp___0 ; [L829] int retValue_acc ; [L832] retValue_acc = waterLevel [L833] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L153] tmp = getWaterLevel() [L155] COND TRUE tmp == 0 [L686] int retValue_acc ; [L689] retValue_acc = pumpRunning [L690] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L157] tmp___0 = isPumpRunning() [L159] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L543] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 129 locations, 3 error locations. Result: UNSAFE, OverallTime: 3.3s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 1058 SDtfs, 1599 SDslu, 1503 SDs, 0 SdLazy, 235 SolverSat, 57 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 130 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=197occurred 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: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 534 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 420 NumberOfCodeBlocks, 420 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 337 ConstructedInterpolants, 0 QuantifiedInterpolants, 23665 SizeOfPredicates, 4 NumberOfNonLiveVariables, 414 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 11 InterpolantComputations, 9 PerfectInterpolantSequences, 22/28 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...