./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product52.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_spec2_product52.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 8aa13c479cead5ea7576ebfa7eb0df26504503d1 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 17:25:19,328 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 17:25:19,331 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 17:25:19,343 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 17:25:19,344 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 17:25:19,345 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 17:25:19,346 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 17:25:19,348 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 17:25:19,350 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 17:25:19,352 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 17:25:19,353 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 17:25:19,354 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 17:25:19,355 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 17:25:19,356 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 17:25:19,357 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 17:25:19,359 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 17:25:19,360 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 17:25:19,361 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 17:25:19,363 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 17:25:19,365 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 17:25:19,367 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 17:25:19,369 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 17:25:19,370 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 17:25:19,371 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 17:25:19,374 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 17:25:19,374 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 17:25:19,375 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 17:25:19,376 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 17:25:19,377 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 17:25:19,378 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 17:25:19,378 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 17:25:19,382 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 17:25:19,383 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 17:25:19,384 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 17:25:19,385 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 17:25:19,386 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 17:25:19,386 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 17:25:19,389 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 17:25:19,390 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 17:25:19,391 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 17:25:19,395 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 17:25:19,396 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 17:25:19,419 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 17:25:19,419 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 17:25:19,421 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 17:25:19,421 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 17:25:19,422 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 17:25:19,422 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 17:25:19,422 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 17:25:19,422 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 17:25:19,423 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 17:25:19,423 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 17:25:19,424 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 17:25:19,424 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 17:25:19,424 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 17:25:19,425 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 17:25:19,425 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 17:25:19,425 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 17:25:19,425 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 17:25:19,426 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 17:25:19,426 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 17:25:19,426 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 17:25:19,427 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 17:25:19,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 17:25:19,427 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 17:25:19,427 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 17:25:19,428 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 17:25:19,428 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 17:25:19,428 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 17:25:19,428 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 17:25:19,428 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 17:25:19,429 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 -> 8aa13c479cead5ea7576ebfa7eb0df26504503d1 [2019-11-28 17:25:19,744 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 17:25:19,757 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 17:25:19,761 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 17:25:19,762 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 17:25:19,763 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 17:25:19,763 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c [2019-11-28 17:25:19,824 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd9b4f71c/3ef1889f5589443caba0544c46702b5c/FLAG2573cc897 [2019-11-28 17:25:20,407 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 17:25:20,407 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c [2019-11-28 17:25:20,428 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd9b4f71c/3ef1889f5589443caba0544c46702b5c/FLAG2573cc897 [2019-11-28 17:25:20,670 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd9b4f71c/3ef1889f5589443caba0544c46702b5c [2019-11-28 17:25:20,673 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 17:25:20,675 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 17:25:20,676 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 17:25:20,676 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 17:25:20,679 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 17:25:20,680 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:25:20" (1/1) ... [2019-11-28 17:25:20,683 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67529377 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:25:20, skipping insertion in model container [2019-11-28 17:25:20,683 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:25:20" (1/1) ... [2019-11-28 17:25:20,690 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 17:25:20,735 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 17:25:21,141 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 17:25:21,162 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 17:25:21,286 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 17:25:21,335 INFO L208 MainTranslator]: Completed translation [2019-11-28 17:25:21,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:25:21 WrapperNode [2019-11-28 17:25:21,336 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 17:25:21,337 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 17:25:21,338 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 17:25:21,338 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 17:25:21,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:25:21" (1/1) ... [2019-11-28 17:25:21,367 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:25:21" (1/1) ... [2019-11-28 17:25:21,441 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 17:25:21,441 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 17:25:21,442 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 17:25:21,442 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 17:25:21,455 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:25:21" (1/1) ... [2019-11-28 17:25:21,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:25:21" (1/1) ... [2019-11-28 17:25:21,460 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:25:21" (1/1) ... [2019-11-28 17:25:21,461 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:25:21" (1/1) ... [2019-11-28 17:25:21,474 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:25:21" (1/1) ... [2019-11-28 17:25:21,484 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:25:21" (1/1) ... [2019-11-28 17:25:21,488 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:25:21" (1/1) ... [2019-11-28 17:25:21,494 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 17:25:21,494 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 17:25:21,494 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 17:25:21,495 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 17:25:21,496 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:25:21" (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 17:25:21,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 17:25:21,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 17:25:21,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 17:25:21,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 17:25:22,541 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 17:25:22,542 INFO L287 CfgBuilder]: Removed 164 assume(true) statements. [2019-11-28 17:25:22,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:25:22 BoogieIcfgContainer [2019-11-28 17:25:22,544 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 17:25:22,546 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 17:25:22,546 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 17:25:22,550 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 17:25:22,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:25:20" (1/3) ... [2019-11-28 17:25:22,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1775b89c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:25:22, skipping insertion in model container [2019-11-28 17:25:22,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:25:21" (2/3) ... [2019-11-28 17:25:22,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1775b89c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:25:22, skipping insertion in model container [2019-11-28 17:25:22,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:25:22" (3/3) ... [2019-11-28 17:25:22,558 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product52.cil.c [2019-11-28 17:25:22,569 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 17:25:22,577 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-28 17:25:22,590 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-28 17:25:22,620 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 17:25:22,621 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 17:25:22,621 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 17:25:22,621 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 17:25:22,622 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 17:25:22,622 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 17:25:22,622 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 17:25:22,622 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 17:25:22,651 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states. [2019-11-28 17:25:22,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-28 17:25:22,664 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:25:22,665 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 17:25:22,666 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:25:22,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:25:22,673 INFO L82 PathProgramCache]: Analyzing trace with hash 1471206820, now seen corresponding path program 1 times [2019-11-28 17:25:22,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:25:22,682 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833811351] [2019-11-28 17:25:22,683 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:25:22,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:25:22,913 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 17:25:22,914 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833811351] [2019-11-28 17:25:22,915 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:25:22,915 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 17:25:22,916 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164699893] [2019-11-28 17:25:22,922 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-28 17:25:22,922 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:25:22,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-28 17:25:22,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 17:25:22,940 INFO L87 Difference]: Start difference. First operand 123 states. Second operand 2 states. [2019-11-28 17:25:22,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:25:22,979 INFO L93 Difference]: Finished difference Result 239 states and 366 transitions. [2019-11-28 17:25:22,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-28 17:25:22,981 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-11-28 17:25:22,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:25:22,995 INFO L225 Difference]: With dead ends: 239 [2019-11-28 17:25:22,995 INFO L226 Difference]: Without dead ends: 119 [2019-11-28 17:25:22,999 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 17:25:23,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2019-11-28 17:25:23,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2019-11-28 17:25:23,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2019-11-28 17:25:23,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 175 transitions. [2019-11-28 17:25:23,052 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 175 transitions. Word has length 18 [2019-11-28 17:25:23,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:25:23,052 INFO L462 AbstractCegarLoop]: Abstraction has 119 states and 175 transitions. [2019-11-28 17:25:23,053 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-28 17:25:23,053 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 175 transitions. [2019-11-28 17:25:23,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-28 17:25:23,054 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:25:23,054 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 17:25:23,055 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:25:23,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:25:23,055 INFO L82 PathProgramCache]: Analyzing trace with hash 1252370851, now seen corresponding path program 1 times [2019-11-28 17:25:23,056 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:25:23,056 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762614721] [2019-11-28 17:25:23,056 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:25:23,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:25:23,214 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 17:25:23,215 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762614721] [2019-11-28 17:25:23,216 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:25:23,216 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 17:25:23,216 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180443927] [2019-11-28 17:25:23,218 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 17:25:23,218 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:25:23,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 17:25:23,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 17:25:23,219 INFO L87 Difference]: Start difference. First operand 119 states and 175 transitions. Second operand 3 states. [2019-11-28 17:25:23,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:25:23,234 INFO L93 Difference]: Finished difference Result 119 states and 175 transitions. [2019-11-28 17:25:23,234 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 17:25:23,234 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-11-28 17:25:23,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:25:23,236 INFO L225 Difference]: With dead ends: 119 [2019-11-28 17:25:23,236 INFO L226 Difference]: Without dead ends: 51 [2019-11-28 17:25:23,237 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 17:25:23,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2019-11-28 17:25:23,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2019-11-28 17:25:23,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2019-11-28 17:25:23,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 74 transitions. [2019-11-28 17:25:23,245 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 74 transitions. Word has length 19 [2019-11-28 17:25:23,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:25:23,245 INFO L462 AbstractCegarLoop]: Abstraction has 51 states and 74 transitions. [2019-11-28 17:25:23,246 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 17:25:23,246 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 74 transitions. [2019-11-28 17:25:23,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-28 17:25:23,247 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:25:23,247 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 17:25:23,247 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:25:23,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:25:23,248 INFO L82 PathProgramCache]: Analyzing trace with hash 70895168, now seen corresponding path program 1 times [2019-11-28 17:25:23,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:25:23,249 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322183713] [2019-11-28 17:25:23,249 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:25:23,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:25:23,412 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 17:25:23,412 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322183713] [2019-11-28 17:25:23,412 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:25:23,412 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 17:25:23,413 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267399300] [2019-11-28 17:25:23,414 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 17:25:23,414 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:25:23,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 17:25:23,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 17:25:23,416 INFO L87 Difference]: Start difference. First operand 51 states and 74 transitions. Second operand 3 states. [2019-11-28 17:25:23,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:25:23,476 INFO L93 Difference]: Finished difference Result 139 states and 208 transitions. [2019-11-28 17:25:23,481 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 17:25:23,481 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-11-28 17:25:23,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:25:23,483 INFO L225 Difference]: With dead ends: 139 [2019-11-28 17:25:23,483 INFO L226 Difference]: Without dead ends: 95 [2019-11-28 17:25:23,487 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 17:25:23,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-11-28 17:25:23,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 91. [2019-11-28 17:25:23,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2019-11-28 17:25:23,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 136 transitions. [2019-11-28 17:25:23,515 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 136 transitions. Word has length 24 [2019-11-28 17:25:23,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:25:23,516 INFO L462 AbstractCegarLoop]: Abstraction has 91 states and 136 transitions. [2019-11-28 17:25:23,516 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 17:25:23,516 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 136 transitions. [2019-11-28 17:25:23,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-28 17:25:23,517 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:25:23,520 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] [2019-11-28 17:25:23,520 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:25:23,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:25:23,521 INFO L82 PathProgramCache]: Analyzing trace with hash 2090863582, now seen corresponding path program 1 times [2019-11-28 17:25:23,521 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:25:23,522 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250020119] [2019-11-28 17:25:23,522 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:25:23,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:25:23,627 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 17:25:23,628 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250020119] [2019-11-28 17:25:23,628 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:25:23,628 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 17:25:23,629 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497681622] [2019-11-28 17:25:23,629 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 17:25:23,630 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:25:23,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 17:25:23,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 17:25:23,631 INFO L87 Difference]: Start difference. First operand 91 states and 136 transitions. Second operand 3 states. [2019-11-28 17:25:23,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:25:23,702 INFO L93 Difference]: Finished difference Result 218 states and 331 transitions. [2019-11-28 17:25:23,704 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 17:25:23,704 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-11-28 17:25:23,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:25:23,707 INFO L225 Difference]: With dead ends: 218 [2019-11-28 17:25:23,707 INFO L226 Difference]: Without dead ends: 134 [2019-11-28 17:25:23,708 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 17:25:23,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2019-11-28 17:25:23,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 132. [2019-11-28 17:25:23,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-11-28 17:25:23,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 194 transitions. [2019-11-28 17:25:23,743 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 194 transitions. Word has length 26 [2019-11-28 17:25:23,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:25:23,744 INFO L462 AbstractCegarLoop]: Abstraction has 132 states and 194 transitions. [2019-11-28 17:25:23,744 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 17:25:23,745 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 194 transitions. [2019-11-28 17:25:23,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-28 17:25:23,748 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:25:23,748 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] [2019-11-28 17:25:23,749 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:25:23,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:25:23,750 INFO L82 PathProgramCache]: Analyzing trace with hash -1765382007, now seen corresponding path program 1 times [2019-11-28 17:25:23,751 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:25:23,753 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518276678] [2019-11-28 17:25:23,753 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:25:23,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:25:23,847 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 17:25:23,847 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518276678] [2019-11-28 17:25:23,848 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:25:23,848 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 17:25:23,848 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104170394] [2019-11-28 17:25:23,849 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 17:25:23,849 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:25:23,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 17:25:23,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 17:25:23,850 INFO L87 Difference]: Start difference. First operand 132 states and 194 transitions. Second operand 5 states. [2019-11-28 17:25:23,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:25:23,962 INFO L93 Difference]: Finished difference Result 692 states and 1031 transitions. [2019-11-28 17:25:23,963 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-28 17:25:23,963 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-11-28 17:25:23,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:25:23,967 INFO L225 Difference]: With dead ends: 692 [2019-11-28 17:25:23,968 INFO L226 Difference]: Without dead ends: 567 [2019-11-28 17:25:23,970 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 17:25:23,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2019-11-28 17:25:24,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 243. [2019-11-28 17:25:24,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2019-11-28 17:25:24,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 352 transitions. [2019-11-28 17:25:24,021 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 352 transitions. Word has length 27 [2019-11-28 17:25:24,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:25:24,022 INFO L462 AbstractCegarLoop]: Abstraction has 243 states and 352 transitions. [2019-11-28 17:25:24,022 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 17:25:24,022 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 352 transitions. [2019-11-28 17:25:24,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-28 17:25:24,028 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:25:24,028 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] [2019-11-28 17:25:24,029 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:25:24,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:25:24,029 INFO L82 PathProgramCache]: Analyzing trace with hash 1095440129, now seen corresponding path program 1 times [2019-11-28 17:25:24,030 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:25:24,030 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574655870] [2019-11-28 17:25:24,030 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:25:24,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:25:24,141 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 17:25:24,142 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574655870] [2019-11-28 17:25:24,142 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:25:24,142 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 17:25:24,143 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530612859] [2019-11-28 17:25:24,143 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 17:25:24,143 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:25:24,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 17:25:24,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 17:25:24,146 INFO L87 Difference]: Start difference. First operand 243 states and 352 transitions. Second operand 5 states. [2019-11-28 17:25:24,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:25:24,347 INFO L93 Difference]: Finished difference Result 921 states and 1339 transitions. [2019-11-28 17:25:24,347 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-28 17:25:24,348 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2019-11-28 17:25:24,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:25:24,352 INFO L225 Difference]: With dead ends: 921 [2019-11-28 17:25:24,353 INFO L226 Difference]: Without dead ends: 685 [2019-11-28 17:25:24,355 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 17:25:24,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2019-11-28 17:25:24,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 241. [2019-11-28 17:25:24,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2019-11-28 17:25:24,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 346 transitions. [2019-11-28 17:25:24,386 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 346 transitions. Word has length 28 [2019-11-28 17:25:24,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:25:24,386 INFO L462 AbstractCegarLoop]: Abstraction has 241 states and 346 transitions. [2019-11-28 17:25:24,386 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 17:25:24,386 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 346 transitions. [2019-11-28 17:25:24,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-28 17:25:24,391 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:25:24,395 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] [2019-11-28 17:25:24,396 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:25:24,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:25:24,396 INFO L82 PathProgramCache]: Analyzing trace with hash 494548661, now seen corresponding path program 1 times [2019-11-28 17:25:24,396 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:25:24,398 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845155372] [2019-11-28 17:25:24,398 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:25:24,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:25:24,466 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 17:25:24,466 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845155372] [2019-11-28 17:25:24,467 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:25:24,467 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 17:25:24,467 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851854343] [2019-11-28 17:25:24,468 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 17:25:24,468 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:25:24,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 17:25:24,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 17:25:24,474 INFO L87 Difference]: Start difference. First operand 241 states and 346 transitions. Second operand 5 states. [2019-11-28 17:25:24,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:25:24,572 INFO L93 Difference]: Finished difference Result 655 states and 925 transitions. [2019-11-28 17:25:24,573 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 17:25:24,573 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2019-11-28 17:25:24,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:25:24,575 INFO L225 Difference]: With dead ends: 655 [2019-11-28 17:25:24,575 INFO L226 Difference]: Without dead ends: 421 [2019-11-28 17:25:24,578 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 17:25:24,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2019-11-28 17:25:24,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 265. [2019-11-28 17:25:24,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2019-11-28 17:25:24,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 370 transitions. [2019-11-28 17:25:24,599 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 370 transitions. Word has length 33 [2019-11-28 17:25:24,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:25:24,600 INFO L462 AbstractCegarLoop]: Abstraction has 265 states and 370 transitions. [2019-11-28 17:25:24,600 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 17:25:24,600 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 370 transitions. [2019-11-28 17:25:24,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-28 17:25:24,600 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:25:24,601 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] [2019-11-28 17:25:24,601 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:25:24,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:25:24,601 INFO L82 PathProgramCache]: Analyzing trace with hash 1195613239, now seen corresponding path program 1 times [2019-11-28 17:25:24,602 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:25:24,602 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828720837] [2019-11-28 17:25:24,602 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:25:24,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:25:24,660 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 17:25:24,660 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828720837] [2019-11-28 17:25:24,660 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:25:24,661 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 17:25:24,661 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87265895] [2019-11-28 17:25:24,661 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 17:25:24,662 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:25:24,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 17:25:24,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 17:25:24,662 INFO L87 Difference]: Start difference. First operand 265 states and 370 transitions. Second operand 5 states. [2019-11-28 17:25:24,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:25:24,822 INFO L93 Difference]: Finished difference Result 739 states and 1010 transitions. [2019-11-28 17:25:24,823 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-28 17:25:24,823 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2019-11-28 17:25:24,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:25:24,826 INFO L225 Difference]: With dead ends: 739 [2019-11-28 17:25:24,826 INFO L226 Difference]: Without dead ends: 481 [2019-11-28 17:25:24,827 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 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 17:25:24,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2019-11-28 17:25:24,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 281. [2019-11-28 17:25:24,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2019-11-28 17:25:24,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 386 transitions. [2019-11-28 17:25:24,855 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 386 transitions. Word has length 33 [2019-11-28 17:25:24,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:25:24,856 INFO L462 AbstractCegarLoop]: Abstraction has 281 states and 386 transitions. [2019-11-28 17:25:24,856 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 17:25:24,856 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 386 transitions. [2019-11-28 17:25:24,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-28 17:25:24,857 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:25:24,857 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] [2019-11-28 17:25:24,857 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:25:24,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:25:24,858 INFO L82 PathProgramCache]: Analyzing trace with hash 608807225, now seen corresponding path program 1 times [2019-11-28 17:25:24,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:25:24,858 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767353391] [2019-11-28 17:25:24,859 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:25:24,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:25:24,941 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 17:25:24,942 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767353391] [2019-11-28 17:25:24,942 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:25:24,942 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 17:25:24,942 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501543459] [2019-11-28 17:25:24,943 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 17:25:24,943 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:25:24,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 17:25:24,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 17:25:24,944 INFO L87 Difference]: Start difference. First operand 281 states and 386 transitions. Second operand 3 states. [2019-11-28 17:25:24,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:25:24,998 INFO L93 Difference]: Finished difference Result 659 states and 899 transitions. [2019-11-28 17:25:24,998 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 17:25:24,998 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2019-11-28 17:25:24,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:25:25,001 INFO L225 Difference]: With dead ends: 659 [2019-11-28 17:25:25,001 INFO L226 Difference]: Without dead ends: 385 [2019-11-28 17:25:25,002 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 17:25:25,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2019-11-28 17:25:25,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 385. [2019-11-28 17:25:25,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2019-11-28 17:25:25,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 512 transitions. [2019-11-28 17:25:25,033 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 512 transitions. Word has length 33 [2019-11-28 17:25:25,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:25:25,033 INFO L462 AbstractCegarLoop]: Abstraction has 385 states and 512 transitions. [2019-11-28 17:25:25,033 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 17:25:25,033 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 512 transitions. [2019-11-28 17:25:25,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-28 17:25:25,034 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:25:25,034 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 17:25:25,035 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:25:25,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:25:25,035 INFO L82 PathProgramCache]: Analyzing trace with hash -1791527943, now seen corresponding path program 1 times [2019-11-28 17:25:25,035 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:25:25,036 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286860946] [2019-11-28 17:25:25,036 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:25:25,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:25:25,080 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 17:25:25,080 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286860946] [2019-11-28 17:25:25,081 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:25:25,081 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 17:25:25,081 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605898195] [2019-11-28 17:25:25,081 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 17:25:25,082 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:25:25,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 17:25:25,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 17:25:25,082 INFO L87 Difference]: Start difference. First operand 385 states and 512 transitions. Second operand 3 states. [2019-11-28 17:25:25,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:25:25,162 INFO L93 Difference]: Finished difference Result 595 states and 799 transitions. [2019-11-28 17:25:25,163 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 17:25:25,163 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2019-11-28 17:25:25,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:25:25,166 INFO L225 Difference]: With dead ends: 595 [2019-11-28 17:25:25,166 INFO L226 Difference]: Without dead ends: 593 [2019-11-28 17:25:25,167 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 17:25:25,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2019-11-28 17:25:25,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 472. [2019-11-28 17:25:25,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 472 states. [2019-11-28 17:25:25,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 642 transitions. [2019-11-28 17:25:25,214 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 642 transitions. Word has length 34 [2019-11-28 17:25:25,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:25:25,214 INFO L462 AbstractCegarLoop]: Abstraction has 472 states and 642 transitions. [2019-11-28 17:25:25,214 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 17:25:25,214 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 642 transitions. [2019-11-28 17:25:25,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-11-28 17:25:25,216 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:25:25,216 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 17:25:25,217 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:25:25,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:25:25,217 INFO L82 PathProgramCache]: Analyzing trace with hash 1550920378, now seen corresponding path program 1 times [2019-11-28 17:25:25,217 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:25:25,217 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244100814] [2019-11-28 17:25:25,218 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:25:25,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:25:25,259 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-28 17:25:25,260 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244100814] [2019-11-28 17:25:25,260 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:25:25,260 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 17:25:25,260 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210778916] [2019-11-28 17:25:25,261 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 17:25:25,261 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:25:25,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 17:25:25,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 17:25:25,262 INFO L87 Difference]: Start difference. First operand 472 states and 642 transitions. Second operand 3 states. [2019-11-28 17:25:25,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:25:25,340 INFO L93 Difference]: Finished difference Result 789 states and 1068 transitions. [2019-11-28 17:25:25,341 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 17:25:25,341 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 55 [2019-11-28 17:25:25,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:25:25,343 INFO L225 Difference]: With dead ends: 789 [2019-11-28 17:25:25,343 INFO L226 Difference]: Without dead ends: 324 [2019-11-28 17:25:25,344 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 17:25:25,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2019-11-28 17:25:25,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 312. [2019-11-28 17:25:25,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 312 states. [2019-11-28 17:25:25,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 415 transitions. [2019-11-28 17:25:25,372 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 415 transitions. Word has length 55 [2019-11-28 17:25:25,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:25:25,372 INFO L462 AbstractCegarLoop]: Abstraction has 312 states and 415 transitions. [2019-11-28 17:25:25,372 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 17:25:25,372 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 415 transitions. [2019-11-28 17:25:25,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-11-28 17:25:25,373 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:25:25,373 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 17:25:25,374 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:25:25,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:25:25,374 INFO L82 PathProgramCache]: Analyzing trace with hash 1315379813, now seen corresponding path program 1 times [2019-11-28 17:25:25,374 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:25:25,374 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247853203] [2019-11-28 17:25:25,375 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:25:25,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:25:25,492 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:25:25,492 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247853203] [2019-11-28 17:25:25,492 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:25:25,492 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-28 17:25:25,493 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253041705] [2019-11-28 17:25:25,493 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 17:25:25,493 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:25:25,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 17:25:25,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-28 17:25:25,494 INFO L87 Difference]: Start difference. First operand 312 states and 415 transitions. Second operand 6 states. [2019-11-28 17:25:25,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:25:25,818 INFO L93 Difference]: Finished difference Result 1729 states and 2355 transitions. [2019-11-28 17:25:25,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-28 17:25:25,818 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 58 [2019-11-28 17:25:25,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:25:25,827 INFO L225 Difference]: With dead ends: 1729 [2019-11-28 17:25:25,828 INFO L226 Difference]: Without dead ends: 1512 [2019-11-28 17:25:25,829 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2019-11-28 17:25:25,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2019-11-28 17:25:25,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 537. [2019-11-28 17:25:25,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2019-11-28 17:25:25,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 718 transitions. [2019-11-28 17:25:25,893 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 718 transitions. Word has length 58 [2019-11-28 17:25:25,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:25:25,895 INFO L462 AbstractCegarLoop]: Abstraction has 537 states and 718 transitions. [2019-11-28 17:25:25,895 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 17:25:25,896 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 718 transitions. [2019-11-28 17:25:25,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-11-28 17:25:25,898 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:25:25,898 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 17:25:25,898 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:25:25,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:25:25,899 INFO L82 PathProgramCache]: Analyzing trace with hash 1573545251, now seen corresponding path program 1 times [2019-11-28 17:25:25,899 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:25:25,899 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001492488] [2019-11-28 17:25:25,900 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:25:25,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:25:25,984 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-11-28 17:25:25,985 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001492488] [2019-11-28 17:25:25,985 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [23498079] [2019-11-28 17:25:25,985 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 17:25:26,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:25:26,135 INFO L264 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-28 17:25:26,144 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 17:25:26,209 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-11-28 17:25:26,209 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-28 17:25:26,210 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2019-11-28 17:25:26,210 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854184565] [2019-11-28 17:25:26,211 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 17:25:26,211 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:25:26,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 17:25:26,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-11-28 17:25:26,217 INFO L87 Difference]: Start difference. First operand 537 states and 718 transitions. Second operand 5 states. [2019-11-28 17:25:26,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:25:26,361 INFO L93 Difference]: Finished difference Result 1192 states and 1575 transitions. [2019-11-28 17:25:26,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 17:25:26,361 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2019-11-28 17:25:26,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:25:26,366 INFO L225 Difference]: With dead ends: 1192 [2019-11-28 17:25:26,366 INFO L226 Difference]: Without dead ends: 750 [2019-11-28 17:25:26,367 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-11-28 17:25:26,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2019-11-28 17:25:26,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 362. [2019-11-28 17:25:26,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 362 states. [2019-11-28 17:25:26,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 461 transitions. [2019-11-28 17:25:26,422 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 461 transitions. Word has length 58 [2019-11-28 17:25:26,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:25:26,423 INFO L462 AbstractCegarLoop]: Abstraction has 362 states and 461 transitions. [2019-11-28 17:25:26,423 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 17:25:26,423 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 461 transitions. [2019-11-28 17:25:26,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-11-28 17:25:26,424 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:25:26,424 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 17:25:26,637 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 17:25:26,637 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:25:26,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:25:26,637 INFO L82 PathProgramCache]: Analyzing trace with hash 1084126975, now seen corresponding path program 1 times [2019-11-28 17:25:26,638 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:25:26,638 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147254145] [2019-11-28 17:25:26,638 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:25:26,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:25:26,705 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 23 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:25:26,706 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147254145] [2019-11-28 17:25:26,706 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1667347237] [2019-11-28 17:25:26,706 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 17:25:26,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:25:26,867 INFO L264 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 17:25:26,871 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 17:25:26,886 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:25:26,887 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-28 17:25:26,887 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2019-11-28 17:25:26,888 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738785244] [2019-11-28 17:25:26,888 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 17:25:26,888 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:25:26,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 17:25:26,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-28 17:25:26,889 INFO L87 Difference]: Start difference. First operand 362 states and 461 transitions. Second operand 3 states. [2019-11-28 17:25:26,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:25:26,994 INFO L93 Difference]: Finished difference Result 610 states and 783 transitions. [2019-11-28 17:25:26,995 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 17:25:26,996 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 58 [2019-11-28 17:25:26,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:25:26,997 INFO L225 Difference]: With dead ends: 610 [2019-11-28 17:25:26,997 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 17:25:26,998 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-28 17:25:26,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 17:25:26,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 17:25:27,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 17:25:27,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 17:25:27,000 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2019-11-28 17:25:27,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:25:27,001 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 17:25:27,001 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 17:25:27,001 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 17:25:27,001 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 17:25:27,211 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 17:25:27,214 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-28 17:25:27,827 WARN L192 SmtUtils]: Spent 606.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 112 [2019-11-28 17:25:28,128 WARN L192 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 79 [2019-11-28 17:25:28,497 WARN L192 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 148 [2019-11-28 17:25:28,799 WARN L192 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 132 [2019-11-28 17:25:29,215 WARN L192 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 156 [2019-11-28 17:25:29,490 WARN L192 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 126 [2019-11-28 17:25:29,880 WARN L192 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 162 [2019-11-28 17:25:30,084 WARN L192 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 134 [2019-11-28 17:25:30,361 WARN L192 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 163 [2019-11-28 17:25:31,168 WARN L192 SmtUtils]: Spent 805.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 6 [2019-11-28 17:25:31,453 WARN L192 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 22 [2019-11-28 17:25:31,928 WARN L192 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 22 [2019-11-28 17:25:32,287 WARN L192 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 26 [2019-11-28 17:25:33,415 WARN L192 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 142 DAG size of output: 21 [2019-11-28 17:25:34,311 WARN L192 SmtUtils]: Spent 854.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 22 [2019-11-28 17:25:35,472 WARN L192 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 150 DAG size of output: 21 [2019-11-28 17:25:36,270 WARN L192 SmtUtils]: Spent 794.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 26 [2019-11-28 17:25:37,748 WARN L192 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 156 DAG size of output: 24 [2019-11-28 17:25:38,599 WARN L192 SmtUtils]: Spent 830.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 22 [2019-11-28 17:25:40,008 WARN L192 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 157 DAG size of output: 24 [2019-11-28 17:25:40,013 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 995) no Hoare annotation was computed. [2019-11-28 17:25:40,013 INFO L246 CegarLoopResult]: For program point L432(lines 432 439) no Hoare annotation was computed. [2019-11-28 17:25:40,014 INFO L249 CegarLoopResult]: At program point L432-1(lines 432 439) the Hoare annotation is: true [2019-11-28 17:25:40,014 INFO L246 CegarLoopResult]: For program point L168(lines 168 176) no Hoare annotation was computed. [2019-11-28 17:25:40,014 INFO L246 CegarLoopResult]: For program point L168-1(lines 168 176) no Hoare annotation was computed. [2019-11-28 17:25:40,014 INFO L246 CegarLoopResult]: For program point L168-2(lines 168 176) no Hoare annotation was computed. [2019-11-28 17:25:40,014 INFO L246 CegarLoopResult]: For program point L168-3(lines 168 176) no Hoare annotation was computed. [2019-11-28 17:25:40,014 INFO L246 CegarLoopResult]: For program point L168-4(lines 168 176) no Hoare annotation was computed. [2019-11-28 17:25:40,015 INFO L246 CegarLoopResult]: For program point L168-5(lines 168 176) no Hoare annotation was computed. [2019-11-28 17:25:40,015 INFO L242 CegarLoopResult]: At program point L565(lines 560 568) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (<= 1 ~pumpRunning~0)) (.cse4 (<= 2 ~waterLevel~0)) (.cse1 (= 0 ULTIMATE.start_test_~splverifierCounter~0))) (or (and .cse0 .cse1 (= 0 ~systemActive~0)) (and .cse2 .cse3 .cse4 .cse1 (= 0 ~methAndRunningLastTime~0)) (and .cse2 .cse0 .cse1) (and .cse2 .cse3 (= 0 ~methaneLevelCritical~0) .cse4 (= 0 |ULTIMATE.start_isMethaneLevelCritical_#res|) .cse1))) [2019-11-28 17:25:40,015 INFO L242 CegarLoopResult]: At program point L565-1(lines 560 568) the Hoare annotation is: false [2019-11-28 17:25:40,015 INFO L242 CegarLoopResult]: At program point L565-2(lines 560 568) the Hoare annotation is: false [2019-11-28 17:25:40,016 INFO L246 CegarLoopResult]: For program point L995(line 995) no Hoare annotation was computed. [2019-11-28 17:25:40,016 INFO L246 CegarLoopResult]: For program point L995-1(line 995) no Hoare annotation was computed. [2019-11-28 17:25:40,016 INFO L246 CegarLoopResult]: For program point L995-2(line 995) no Hoare annotation was computed. [2019-11-28 17:25:40,016 INFO L246 CegarLoopResult]: For program point L468(lines 468 478) no Hoare annotation was computed. [2019-11-28 17:25:40,016 INFO L246 CegarLoopResult]: For program point L468-2(lines 468 478) no Hoare annotation was computed. [2019-11-28 17:25:40,016 INFO L246 CegarLoopResult]: For program point L468-4(lines 468 478) no Hoare annotation was computed. [2019-11-28 17:25:40,017 INFO L246 CegarLoopResult]: For program point L469(lines 469 475) no Hoare annotation was computed. [2019-11-28 17:25:40,017 INFO L246 CegarLoopResult]: For program point L469-2(lines 469 475) no Hoare annotation was computed. [2019-11-28 17:25:40,017 INFO L246 CegarLoopResult]: For program point L469-4(lines 469 475) no Hoare annotation was computed. [2019-11-28 17:25:40,017 INFO L242 CegarLoopResult]: At program point L139(lines 139 145) the Hoare annotation is: (let ((.cse3 (<= 1 ~pumpRunning~0)) (.cse4 (<= 2 ~waterLevel~0)) (.cse2 (= 1 ~systemActive~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (= 0 ULTIMATE.start_test_~splverifierCounter~0))) (or (and .cse0 .cse1 (= 0 ~systemActive~0)) (and .cse2 .cse3 (= 0 ~methaneLevelCritical~0) .cse4 .cse1) (and .cse2 .cse3 .cse4 .cse1 (= 0 ~methAndRunningLastTime~0)) (and .cse2 .cse0 .cse1))) [2019-11-28 17:25:40,017 INFO L242 CegarLoopResult]: At program point L106(lines 55 107) the Hoare annotation is: false [2019-11-28 17:25:40,017 INFO L242 CegarLoopResult]: At program point L139-1(lines 139 145) the Hoare annotation is: false [2019-11-28 17:25:40,017 INFO L242 CegarLoopResult]: At program point L139-2(lines 139 145) the Hoare annotation is: false [2019-11-28 17:25:40,018 INFO L242 CegarLoopResult]: At program point L404(lines 400 406) the Hoare annotation is: (and (= 1 ~systemActive~0) (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0) (= 0 ~methAndRunningLastTime~0)) [2019-11-28 17:25:40,018 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 995) no Hoare annotation was computed. [2019-11-28 17:25:40,018 INFO L246 CegarLoopResult]: For program point L76(lines 76 82) no Hoare annotation was computed. [2019-11-28 17:25:40,018 INFO L242 CegarLoopResult]: At program point L76-1(lines 76 82) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse2 (= 0 ~methAndRunningLastTime~0)) (.cse3 (= 1 ~systemActive~0)) (.cse1 (= 0 ULTIMATE.start_test_~splverifierCounter~0))) (or (and .cse0 .cse1 .cse2 (= 0 ~systemActive~0)) (and .cse3 .cse0 .cse1 .cse2) (and .cse3 (<= 1 ~pumpRunning~0) (<= 2 ~waterLevel~0) .cse1))) [2019-11-28 17:25:40,018 INFO L246 CegarLoopResult]: For program point L605(lines 605 611) no Hoare annotation was computed. [2019-11-28 17:25:40,018 INFO L246 CegarLoopResult]: For program point L605-1(lines 605 611) no Hoare annotation was computed. [2019-11-28 17:25:40,018 INFO L246 CegarLoopResult]: For program point L605-2(lines 605 611) no Hoare annotation was computed. [2019-11-28 17:25:40,018 INFO L246 CegarLoopResult]: For program point L605-3(lines 605 611) no Hoare annotation was computed. [2019-11-28 17:25:40,019 INFO L246 CegarLoopResult]: For program point L605-4(lines 605 611) no Hoare annotation was computed. [2019-11-28 17:25:40,019 INFO L246 CegarLoopResult]: For program point L605-5(lines 605 611) no Hoare annotation was computed. [2019-11-28 17:25:40,019 INFO L246 CegarLoopResult]: For program point L540(lines 540 544) no Hoare annotation was computed. [2019-11-28 17:25:40,019 INFO L249 CegarLoopResult]: At program point L441(lines 422 444) the Hoare annotation is: true [2019-11-28 17:25:40,019 INFO L242 CegarLoopResult]: At program point L243(lines 238 246) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_isPumpRunning_#res| 0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= 0 ULTIMATE.start_test_~splverifierCounter~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 (<= 1 ~pumpRunning~0) (<= 2 ~waterLevel~0) .cse3 (= 0 ~methAndRunningLastTime~0)) (and .cse1 .cse2 .cse3 (= 0 ~systemActive~0)))) [2019-11-28 17:25:40,019 INFO L242 CegarLoopResult]: At program point L243-1(lines 238 246) the Hoare annotation is: false [2019-11-28 17:25:40,019 INFO L242 CegarLoopResult]: At program point L243-2(lines 238 246) the Hoare annotation is: false [2019-11-28 17:25:40,019 INFO L242 CegarLoopResult]: At program point L508(lines 1 998) the Hoare annotation is: (and (= 1 ~systemActive~0) (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0) (= 0 ~methAndRunningLastTime~0)) [2019-11-28 17:25:40,020 INFO L246 CegarLoopResult]: For program point L311(lines 311 315) no Hoare annotation was computed. [2019-11-28 17:25:40,020 INFO L246 CegarLoopResult]: For program point L311-2(lines 311 315) no Hoare annotation was computed. [2019-11-28 17:25:40,020 INFO L246 CegarLoopResult]: For program point L311-3(lines 311 315) no Hoare annotation was computed. [2019-11-28 17:25:40,020 INFO L246 CegarLoopResult]: For program point L311-5(lines 311 315) no Hoare annotation was computed. [2019-11-28 17:25:40,020 INFO L246 CegarLoopResult]: For program point L311-6(lines 311 315) no Hoare annotation was computed. [2019-11-28 17:25:40,020 INFO L246 CegarLoopResult]: For program point L311-8(lines 311 315) no Hoare annotation was computed. [2019-11-28 17:25:40,020 INFO L242 CegarLoopResult]: At program point L610(lines 601 614) the Hoare annotation is: false [2019-11-28 17:25:40,020 INFO L242 CegarLoopResult]: At program point L610-1(lines 601 614) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (<= 2 ~waterLevel~0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= 0 ULTIMATE.start_test_~splverifierCounter~0))) (or (and .cse0 (= 0 ~methaneLevelCritical~0) .cse1 .cse2 .cse3) (and .cse0 (not (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0)) .cse2 .cse3) (and .cse0 .cse1 .cse2 .cse3 (= 0 ~methAndRunningLastTime~0)))) [2019-11-28 17:25:40,020 INFO L242 CegarLoopResult]: At program point L610-2(lines 601 614) the Hoare annotation is: false [2019-11-28 17:25:40,021 INFO L242 CegarLoopResult]: At program point L610-3(lines 601 614) the Hoare annotation is: false [2019-11-28 17:25:40,021 INFO L242 CegarLoopResult]: At program point L610-4(lines 601 614) the Hoare annotation is: false [2019-11-28 17:25:40,021 INFO L242 CegarLoopResult]: At program point L610-5(lines 601 614) the Hoare annotation is: false [2019-11-28 17:25:40,021 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-28 17:25:40,021 INFO L242 CegarLoopResult]: At program point L317(lines 302 320) the Hoare annotation is: (and (= 1 ~systemActive~0) (<= 1 ~pumpRunning~0) (<= 1 ULTIMATE.start_isLowWaterLevel_~tmp___0~2) (= 0 |ULTIMATE.start_isLowWaterSensorDry_#res|) (not (= 0 ~waterLevel~0)) (<= 1 |ULTIMATE.start_isLowWaterLevel_#res|) (= 0 ULTIMATE.start_isLowWaterLevel_~tmp~4) (= 0 ULTIMATE.start_test_~splverifierCounter~0)) [2019-11-28 17:25:40,021 INFO L242 CegarLoopResult]: At program point L317-1(lines 302 320) the Hoare annotation is: false [2019-11-28 17:25:40,021 INFO L242 CegarLoopResult]: At program point L317-2(lines 302 320) the Hoare annotation is: false [2019-11-28 17:25:40,021 INFO L246 CegarLoopResult]: For program point L86(lines 86 101) no Hoare annotation was computed. [2019-11-28 17:25:40,022 INFO L242 CegarLoopResult]: At program point L516(lines 511 519) the Hoare annotation is: (and (= 1 ~systemActive~0) (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0) (= 0 ~methAndRunningLastTime~0)) [2019-11-28 17:25:40,022 INFO L246 CegarLoopResult]: For program point L552(lines 552 556) no Hoare annotation was computed. [2019-11-28 17:25:40,022 INFO L242 CegarLoopResult]: At program point L453(lines 448 455) the Hoare annotation is: (and (= 1 ~systemActive~0) (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0) (= 0 ~methAndRunningLastTime~0)) [2019-11-28 17:25:40,022 INFO L246 CegarLoopResult]: For program point L57(lines 56 105) no Hoare annotation was computed. [2019-11-28 17:25:40,022 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-28 17:25:40,022 INFO L246 CegarLoopResult]: For program point L190(lines 190 207) no Hoare annotation was computed. [2019-11-28 17:25:40,022 INFO L246 CegarLoopResult]: For program point L190-1(lines 190 207) no Hoare annotation was computed. [2019-11-28 17:25:40,022 INFO L246 CegarLoopResult]: For program point L190-2(lines 190 207) no Hoare annotation was computed. [2019-11-28 17:25:40,023 INFO L246 CegarLoopResult]: For program point L58(lines 58 62) no Hoare annotation was computed. [2019-11-28 17:25:40,023 INFO L242 CegarLoopResult]: At program point L620(lines 615 623) the Hoare annotation is: (and (= 1 ~systemActive~0) (<= 1 ~pumpRunning~0) (= 0 |ULTIMATE.start_isLowWaterSensorDry_#res|) (not (= 0 ~waterLevel~0)) (= 0 ULTIMATE.start_test_~splverifierCounter~0)) [2019-11-28 17:25:40,023 INFO L242 CegarLoopResult]: At program point L620-1(lines 615 623) the Hoare annotation is: false [2019-11-28 17:25:40,023 INFO L242 CegarLoopResult]: At program point L620-2(lines 615 623) the Hoare annotation is: false [2019-11-28 17:25:40,023 INFO L242 CegarLoopResult]: At program point L356-2(lines 356 370) the Hoare annotation is: false [2019-11-28 17:25:40,023 INFO L246 CegarLoopResult]: For program point L357(line 357) no Hoare annotation was computed. [2019-11-28 17:25:40,023 INFO L246 CegarLoopResult]: For program point L325(lines 325 331) no Hoare annotation was computed. [2019-11-28 17:25:40,023 INFO L242 CegarLoopResult]: At program point L325-1(lines 325 331) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 0 ULTIMATE.start_test_~splverifierCounter~0)) [2019-11-28 17:25:40,023 INFO L246 CegarLoopResult]: For program point L292(lines 292 296) no Hoare annotation was computed. [2019-11-28 17:25:40,024 INFO L246 CegarLoopResult]: For program point L292-2(lines 292 296) no Hoare annotation was computed. [2019-11-28 17:25:40,024 INFO L246 CegarLoopResult]: For program point L292-3(lines 292 296) no Hoare annotation was computed. [2019-11-28 17:25:40,024 INFO L246 CegarLoopResult]: For program point L292-5(lines 292 296) no Hoare annotation was computed. [2019-11-28 17:25:40,024 INFO L246 CegarLoopResult]: For program point L94(lines 94 100) no Hoare annotation was computed. [2019-11-28 17:25:40,024 INFO L246 CegarLoopResult]: For program point L292-6(lines 292 296) no Hoare annotation was computed. [2019-11-28 17:25:40,024 INFO L242 CegarLoopResult]: At program point L94-1(lines 132 138) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse1 (= 0 ULTIMATE.start_test_~splverifierCounter~0))) (or (and .cse0 .cse1 (= 0 ~systemActive~0)) (and .cse2 .cse0 .cse1 (= 0 ~methAndRunningLastTime~0)) (and .cse2 (<= 1 ~pumpRunning~0) (<= 2 ~waterLevel~0) .cse1))) [2019-11-28 17:25:40,024 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-28 17:25:40,024 INFO L246 CegarLoopResult]: For program point L292-8(lines 292 296) no Hoare annotation was computed. [2019-11-28 17:25:40,024 INFO L246 CegarLoopResult]: For program point L292-9(lines 292 296) no Hoare annotation was computed. [2019-11-28 17:25:40,025 INFO L246 CegarLoopResult]: For program point L292-11(lines 292 296) no Hoare annotation was computed. [2019-11-28 17:25:40,025 INFO L246 CegarLoopResult]: For program point L292-12(lines 292 296) no Hoare annotation was computed. [2019-11-28 17:25:40,025 INFO L246 CegarLoopResult]: For program point L292-14(lines 292 296) no Hoare annotation was computed. [2019-11-28 17:25:40,025 INFO L246 CegarLoopResult]: For program point L292-15(lines 292 296) no Hoare annotation was computed. [2019-11-28 17:25:40,025 INFO L246 CegarLoopResult]: For program point L292-17(lines 292 296) no Hoare annotation was computed. [2019-11-28 17:25:40,025 INFO L246 CegarLoopResult]: For program point L194(lines 194 202) no Hoare annotation was computed. [2019-11-28 17:25:40,025 INFO L246 CegarLoopResult]: For program point L194-1(lines 194 202) no Hoare annotation was computed. [2019-11-28 17:25:40,025 INFO L246 CegarLoopResult]: For program point L194-2(lines 194 202) no Hoare annotation was computed. [2019-11-28 17:25:40,025 INFO L246 CegarLoopResult]: For program point L360(lines 360 364) no Hoare annotation was computed. [2019-11-28 17:25:40,025 INFO L246 CegarLoopResult]: For program point L360-1(lines 132 138) no Hoare annotation was computed. [2019-11-28 17:25:40,026 INFO L246 CegarLoopResult]: For program point L164(lines 164 181) no Hoare annotation was computed. [2019-11-28 17:25:40,026 INFO L246 CegarLoopResult]: For program point L164-1(lines 164 181) no Hoare annotation was computed. [2019-11-28 17:25:40,026 INFO L246 CegarLoopResult]: For program point L164-2(lines 164 181) no Hoare annotation was computed. [2019-11-28 17:25:40,026 INFO L246 CegarLoopResult]: For program point L164-3(lines 164 181) no Hoare annotation was computed. [2019-11-28 17:25:40,026 INFO L246 CegarLoopResult]: For program point L164-4(lines 164 181) no Hoare annotation was computed. [2019-11-28 17:25:40,026 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-28 17:25:40,026 INFO L246 CegarLoopResult]: For program point L164-5(lines 164 181) no Hoare annotation was computed. [2019-11-28 17:25:40,026 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 995) no Hoare annotation was computed. [2019-11-28 17:25:40,026 INFO L246 CegarLoopResult]: For program point L528(lines 528 532) no Hoare annotation was computed. [2019-11-28 17:25:40,027 INFO L246 CegarLoopResult]: For program point L528-3(lines 528 532) no Hoare annotation was computed. [2019-11-28 17:25:40,027 INFO L246 CegarLoopResult]: For program point L528-6(lines 528 532) no Hoare annotation was computed. [2019-11-28 17:25:40,027 INFO L242 CegarLoopResult]: At program point L132(lines 131 150) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse1 (= 0 ULTIMATE.start_test_~splverifierCounter~0))) (or (and .cse0 .cse1 (= 0 ~systemActive~0)) (and .cse2 (= 0 ~methaneLevelCritical~0) .cse0 .cse1) (and .cse2 .cse0 .cse1 (= 0 ~methAndRunningLastTime~0)) (and .cse2 (<= 1 ~pumpRunning~0) (not (= 0 ~waterLevel~0)) .cse1))) [2019-11-28 17:25:40,027 INFO L246 CegarLoopResult]: For program point L132-1(lines 132 138) no Hoare annotation was computed. [2019-11-28 17:25:40,027 INFO L246 CegarLoopResult]: For program point L66(lines 66 72) no Hoare annotation was computed. [2019-11-28 17:25:40,027 INFO L242 CegarLoopResult]: At program point L132-2(lines 131 150) the Hoare annotation is: false [2019-11-28 17:25:40,027 INFO L242 CegarLoopResult]: At program point L66-1(lines 66 72) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse2 (= 0 ~methAndRunningLastTime~0)) (.cse3 (= 1 ~systemActive~0)) (.cse1 (= 0 ULTIMATE.start_test_~splverifierCounter~0))) (or (and .cse0 .cse1 .cse2 (= 0 ~systemActive~0)) (and .cse3 .cse0 .cse1 .cse2) (and .cse3 (<= 1 ~pumpRunning~0) (<= 2 ~waterLevel~0) .cse1))) [2019-11-28 17:25:40,028 INFO L242 CegarLoopResult]: At program point L132-3(lines 131 150) the Hoare annotation is: false [2019-11-28 17:25:40,028 INFO L242 CegarLoopResult]: At program point L298(lines 283 301) the Hoare annotation is: false [2019-11-28 17:25:40,028 INFO L242 CegarLoopResult]: At program point L298-1(lines 283 301) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (<= 2 ~waterLevel~0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= 0 ULTIMATE.start_test_~splverifierCounter~0))) (or (and .cse0 (= 0 ~methaneLevelCritical~0) .cse1 .cse2 .cse3) (and (= 0 |ULTIMATE.start_isHighWaterLevel_#res|) .cse0 (= 0 ULTIMATE.start_isHighWaterLevel_~tmp___0~1) (not (= 0 ULTIMATE.start_isHighWaterLevel_~tmp~3)) .cse2 .cse3) (and .cse0 .cse1 .cse2 .cse3 (= 0 ~methAndRunningLastTime~0)))) [2019-11-28 17:25:40,028 INFO L242 CegarLoopResult]: At program point L298-2(lines 283 301) the Hoare annotation is: false [2019-11-28 17:25:40,028 INFO L242 CegarLoopResult]: At program point L298-3(lines 283 301) the Hoare annotation is: false [2019-11-28 17:25:40,028 INFO L242 CegarLoopResult]: At program point L298-4(lines 283 301) the Hoare annotation is: false [2019-11-28 17:25:40,028 INFO L242 CegarLoopResult]: At program point L298-5(lines 283 301) the Hoare annotation is: false [2019-11-28 17:25:40,028 INFO L246 CegarLoopResult]: For program point L464(lines 464 481) no Hoare annotation was computed. [2019-11-28 17:25:40,028 INFO L242 CegarLoopResult]: At program point L464-1(lines 1 998) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse2 (= 0 ~methAndRunningLastTime~0)) (.cse3 (= 1 ~systemActive~0)) (.cse1 (= 0 ULTIMATE.start_test_~splverifierCounter~0))) (or (and .cse0 .cse1 .cse2 (= 0 ~systemActive~0)) (and .cse3 .cse0 .cse1 .cse2) (and .cse3 (<= 1 ~pumpRunning~0) (<= 2 ~waterLevel~0) .cse1))) [2019-11-28 17:25:40,029 INFO L246 CegarLoopResult]: For program point L464-2(lines 464 481) no Hoare annotation was computed. [2019-11-28 17:25:40,029 INFO L242 CegarLoopResult]: At program point L464-3(lines 1 998) the Hoare annotation is: false [2019-11-28 17:25:40,029 INFO L246 CegarLoopResult]: For program point L464-4(lines 464 481) no Hoare annotation was computed. [2019-11-28 17:25:40,029 INFO L242 CegarLoopResult]: At program point L464-5(lines 1 998) the Hoare annotation is: false [2019-11-28 17:25:40,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:25:40 BoogieIcfgContainer [2019-11-28 17:25:40,056 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 17:25:40,057 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 17:25:40,057 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 17:25:40,057 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 17:25:40,058 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:25:22" (3/4) ... [2019-11-28 17:25:40,061 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 17:25:40,080 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 38 nodes and edges [2019-11-28 17:25:40,081 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2019-11-28 17:25:40,082 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-11-28 17:25:40,083 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-28 17:25:40,084 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-28 17:25:40,085 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-28 17:25:40,085 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-28 17:25:40,121 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((pumpRunning == 0 && 0 == splverifierCounter) && 0 == systemActive) || ((((1 == systemActive && 1 <= pumpRunning) && 2 <= waterLevel) && 0 == splverifierCounter) && 0 == methAndRunningLastTime)) || ((1 == systemActive && pumpRunning == 0) && 0 == splverifierCounter)) || (((((1 == systemActive && 1 <= pumpRunning) && 0 == methaneLevelCritical) && 2 <= waterLevel) && 0 == \result) && 0 == splverifierCounter) [2019-11-28 17:25:40,122 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((1 == systemActive && 1 <= pumpRunning) && 0 == \result) && !(0 == waterLevel)) && 0 == splverifierCounter [2019-11-28 17:25:40,122 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1 == systemActive && 0 == methaneLevelCritical) && 2 <= waterLevel) && pumpRunning == 0) && 0 == splverifierCounter) || (((1 == systemActive && !(\result == 0)) && pumpRunning == 0) && 0 == splverifierCounter)) || ((((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && 0 == splverifierCounter) && 0 == methAndRunningLastTime) [2019-11-28 17:25:40,123 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1 == systemActive && \result == 0) && pumpRunning == 0) && 0 == splverifierCounter) || ((((1 == systemActive && 1 <= pumpRunning) && 2 <= waterLevel) && 0 == splverifierCounter) && 0 == methAndRunningLastTime)) || (((\result == 0 && pumpRunning == 0) && 0 == splverifierCounter) && 0 == systemActive) [2019-11-28 17:25:40,123 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((1 == systemActive && 1 <= pumpRunning) && 1 <= tmp___0) && 0 == \result) && !(0 == waterLevel)) && 1 <= \result) && 0 == tmp) && 0 == splverifierCounter [2019-11-28 17:25:40,124 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1 == systemActive && 0 == methaneLevelCritical) && 2 <= waterLevel) && pumpRunning == 0) && 0 == splverifierCounter) || (((((0 == \result && 1 == systemActive) && 0 == tmp___0) && !(0 == tmp)) && pumpRunning == 0) && 0 == splverifierCounter)) || ((((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && 0 == splverifierCounter) && 0 == methAndRunningLastTime) [2019-11-28 17:25:40,229 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 17:25:40,229 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 17:25:40,231 INFO L168 Benchmark]: Toolchain (without parser) took 19556.13 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 516.4 MB). Free memory was 957.7 MB in the beginning and 980.0 MB in the end (delta: -22.3 MB). Peak memory consumption was 494.1 MB. Max. memory is 11.5 GB. [2019-11-28 17:25:40,231 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 17:25:40,231 INFO L168 Benchmark]: CACSL2BoogieTranslator took 661.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -160.2 MB). Peak memory consumption was 25.6 MB. Max. memory is 11.5 GB. [2019-11-28 17:25:40,232 INFO L168 Benchmark]: Boogie Procedure Inliner took 103.88 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 17:25:40,232 INFO L168 Benchmark]: Boogie Preprocessor took 52.52 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 17:25:40,232 INFO L168 Benchmark]: RCFGBuilder took 1049.46 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: 63.9 MB). Peak memory consumption was 63.9 MB. Max. memory is 11.5 GB. [2019-11-28 17:25:40,233 INFO L168 Benchmark]: TraceAbstraction took 17510.76 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 373.8 MB). Free memory was 1.0 GB in the beginning and 994.0 MB in the end (delta: 46.8 MB). Peak memory consumption was 495.1 MB. Max. memory is 11.5 GB. [2019-11-28 17:25:40,233 INFO L168 Benchmark]: Witness Printer took 172.16 ms. Allocated memory is still 1.5 GB. Free memory was 994.0 MB in the beginning and 980.0 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. [2019-11-28 17:25:40,235 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 661.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -160.2 MB). Peak memory consumption was 25.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 103.88 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 52.52 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1049.46 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: 63.9 MB). Peak memory consumption was 63.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 17510.76 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 373.8 MB). Free memory was 1.0 GB in the beginning and 994.0 MB in the end (delta: 46.8 MB). Peak memory consumption was 495.1 MB. Max. memory is 11.5 GB. * Witness Printer took 172.16 ms. Allocated memory is still 1.5 GB. Free memory was 994.0 MB in the beginning and 980.0 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 995]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 995]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 995]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 325]: Loop Invariant Derived loop invariant: pumpRunning == 0 && 0 == splverifierCounter - InvariantResult [Line: 283]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 283]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 238]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 601]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 356]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 283]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 238]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 601]: Loop Invariant Derived loop invariant: (((((1 == systemActive && 0 == methaneLevelCritical) && 2 <= waterLevel) && pumpRunning == 0) && 0 == splverifierCounter) || (((1 == systemActive && !(\result == 0)) && pumpRunning == 0) && 0 == splverifierCounter)) || ((((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && 0 == splverifierCounter) && 0 == methAndRunningLastTime) - InvariantResult [Line: 283]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 601]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 238]: Loop Invariant Derived loop invariant: ((((1 == systemActive && \result == 0) && pumpRunning == 0) && 0 == splverifierCounter) || ((((1 == systemActive && 1 <= pumpRunning) && 2 <= waterLevel) && 0 == splverifierCounter) && 0 == methAndRunningLastTime)) || (((\result == 0 && pumpRunning == 0) && 0 == splverifierCounter) && 0 == systemActive) - InvariantResult [Line: 139]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 283]: Loop Invariant Derived loop invariant: (((((1 == systemActive && 0 == methaneLevelCritical) && 2 <= waterLevel) && pumpRunning == 0) && 0 == splverifierCounter) || (((((0 == \result && 1 == systemActive) && 0 == tmp___0) && !(0 == tmp)) && pumpRunning == 0) && 0 == splverifierCounter)) || ((((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && 0 == splverifierCounter) && 0 == methAndRunningLastTime) - InvariantResult [Line: 601]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 400]: Loop Invariant Derived loop invariant: (((1 == systemActive && 0 == methaneLevelCritical) && 1 == waterLevel) && pumpRunning == 0) && 0 == methAndRunningLastTime - InvariantResult [Line: 560]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 560]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 76]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && 0 == splverifierCounter) && 0 == methAndRunningLastTime) && 0 == systemActive) || (((1 == systemActive && pumpRunning == 0) && 0 == splverifierCounter) && 0 == methAndRunningLastTime)) || (((1 == systemActive && 1 <= pumpRunning) && 2 <= waterLevel) && 0 == splverifierCounter) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((1 == systemActive && 0 == methaneLevelCritical) && 1 == waterLevel) && pumpRunning == 0) && 0 == methAndRunningLastTime - InvariantResult [Line: 448]: Loop Invariant Derived loop invariant: (((1 == systemActive && 0 == methaneLevelCritical) && 1 == waterLevel) && pumpRunning == 0) && 0 == methAndRunningLastTime - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && 0 == splverifierCounter) && 0 == methAndRunningLastTime) && 0 == systemActive) || (((1 == systemActive && pumpRunning == 0) && 0 == splverifierCounter) && 0 == methAndRunningLastTime)) || (((1 == systemActive && 1 <= pumpRunning) && 2 <= waterLevel) && 0 == splverifierCounter) - InvariantResult [Line: 511]: Loop Invariant Derived loop invariant: (((1 == systemActive && 0 == methaneLevelCritical) && 1 == waterLevel) && pumpRunning == 0) && 0 == methAndRunningLastTime - InvariantResult [Line: 422]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 615]: Loop Invariant Derived loop invariant: (((1 == systemActive && 1 <= pumpRunning) && 0 == \result) && !(0 == waterLevel)) && 0 == splverifierCounter - InvariantResult [Line: 132]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && 0 == splverifierCounter) && 0 == systemActive) || (((1 == systemActive && pumpRunning == 0) && 0 == splverifierCounter) && 0 == methAndRunningLastTime)) || (((1 == systemActive && 1 <= pumpRunning) && 2 <= waterLevel) && 0 == splverifierCounter) - InvariantResult [Line: 615]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 560]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && 0 == splverifierCounter) && 0 == systemActive) || ((((1 == systemActive && 1 <= pumpRunning) && 2 <= waterLevel) && 0 == splverifierCounter) && 0 == methAndRunningLastTime)) || ((1 == systemActive && pumpRunning == 0) && 0 == splverifierCounter)) || (((((1 == systemActive && 1 <= pumpRunning) && 0 == methaneLevelCritical) && 2 <= waterLevel) && 0 == \result) && 0 == splverifierCounter) - InvariantResult [Line: 615]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 139]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 283]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 601]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 139]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && 0 == splverifierCounter) && 0 == systemActive) || ((((1 == systemActive && 1 <= pumpRunning) && 0 == methaneLevelCritical) && 2 <= waterLevel) && 0 == splverifierCounter)) || ((((1 == systemActive && 1 <= pumpRunning) && 2 <= waterLevel) && 0 == splverifierCounter) && 0 == methAndRunningLastTime)) || ((1 == systemActive && pumpRunning == 0) && 0 == splverifierCounter) - InvariantResult [Line: 302]: Loop Invariant Derived loop invariant: ((((((1 == systemActive && 1 <= pumpRunning) && 1 <= tmp___0) && 0 == \result) && !(0 == waterLevel)) && 1 <= \result) && 0 == tmp) && 0 == splverifierCounter - InvariantResult [Line: 601]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 66]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && 0 == splverifierCounter) && 0 == methAndRunningLastTime) && 0 == systemActive) || (((1 == systemActive && pumpRunning == 0) && 0 == splverifierCounter) && 0 == methAndRunningLastTime)) || (((1 == systemActive && 1 <= pumpRunning) && 2 <= waterLevel) && 0 == splverifierCounter) - InvariantResult [Line: 131]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 302]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 131]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 302]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 432]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 131]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && 0 == splverifierCounter) && 0 == systemActive) || (((1 == systemActive && 0 == methaneLevelCritical) && pumpRunning == 0) && 0 == splverifierCounter)) || (((1 == systemActive && pumpRunning == 0) && 0 == splverifierCounter) && 0 == methAndRunningLastTime)) || (((1 == systemActive && 1 <= pumpRunning) && !(0 == waterLevel)) && 0 == splverifierCounter) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 123 locations, 3 error locations. Result: SAFE, OverallTime: 4.5s, OverallIterations: 14, TraceHistogramMax: 2, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 12.8s, HoareTripleCheckerStatistics: 1427 SDtfs, 1814 SDslu, 2247 SDs, 0 SdLazy, 258 SolverSat, 61 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 203 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=537occurred in iteration=12, 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, 14 MinimizatonAttempts, 2626 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 45 LocationsWithAnnotation, 45 PreInvPairs, 181 NumberOfFragments, 602 HoareAnnotationTreeSize, 45 FomulaSimplifications, 2042542 FormulaSimplificationTreeSizeReduction, 3.1s HoareSimplificationTime, 45 FomulaSimplificationsInter, 341424 FormulaSimplificationTreeSizeReductionInter, 9.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 620 NumberOfCodeBlocks, 620 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 604 ConstructedInterpolants, 0 QuantifiedInterpolants, 42392 SizeOfPredicates, 5 NumberOfNonLiveVariables, 850 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 16 InterpolantComputations, 14 PerfectInterpolantSequences, 113/116 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 correct! Received shutdown request...