./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f34e156823368e08bfaeac3b7f4488efc17d7ca6 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 01:44:22,579 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 01:44:22,581 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 01:44:22,608 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 01:44:22,608 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 01:44:22,610 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 01:44:22,611 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 01:44:22,613 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 01:44:22,623 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 01:44:22,624 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 01:44:22,628 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 01:44:22,629 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 01:44:22,629 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 01:44:22,633 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 01:44:22,636 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 01:44:22,639 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 01:44:22,640 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 01:44:22,644 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 01:44:22,647 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 01:44:22,652 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 01:44:22,656 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 01:44:22,658 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 01:44:22,661 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 01:44:22,662 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 01:44:22,665 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 01:44:22,668 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 01:44:22,668 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 01:44:22,670 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 01:44:22,671 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 01:44:22,672 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 01:44:22,680 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 01:44:22,681 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 01:44:22,682 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 01:44:22,683 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 01:44:22,686 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 01:44:22,687 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 01:44:22,688 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 01:44:22,689 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 01:44:22,690 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 01:44:22,691 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 01:44:22,692 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 01:44:22,693 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 01:44:22,738 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 01:44:22,738 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 01:44:22,740 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 01:44:22,741 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 01:44:22,741 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 01:44:22,741 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 01:44:22,741 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 01:44:22,742 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 01:44:22,742 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 01:44:22,742 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 01:44:22,743 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 01:44:22,744 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 01:44:22,744 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 01:44:22,744 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 01:44:22,745 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 01:44:22,745 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 01:44:22,745 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 01:44:22,745 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 01:44:22,746 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 01:44:22,746 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 01:44:22,746 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 01:44:22,746 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:44:22,747 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 01:44:22,747 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 01:44:22,747 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 01:44:22,747 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 01:44:22,748 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 01:44:22,748 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 01:44:22,748 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 01:44:22,748 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f34e156823368e08bfaeac3b7f4488efc17d7ca6 [2020-10-20 01:44:22,959 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 01:44:22,984 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 01:44:22,991 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 01:44:22,995 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 01:44:22,996 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 01:44:22,996 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c [2020-10-20 01:44:23,069 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f425d70a/20bffc98cc494310b6d94b91a5a3f1e8/FLAG115225a21 [2020-10-20 01:44:23,654 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 01:44:23,655 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c [2020-10-20 01:44:23,667 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f425d70a/20bffc98cc494310b6d94b91a5a3f1e8/FLAG115225a21 [2020-10-20 01:44:23,901 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f425d70a/20bffc98cc494310b6d94b91a5a3f1e8 [2020-10-20 01:44:23,904 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 01:44:23,911 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 01:44:23,912 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 01:44:23,912 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 01:44:23,915 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 01:44:23,916 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:44:23" (1/1) ... [2020-10-20 01:44:23,919 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@758a654 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:23, skipping insertion in model container [2020-10-20 01:44:23,919 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:44:23" (1/1) ... [2020-10-20 01:44:23,927 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 01:44:23,995 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 01:44:24,436 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:44:24,463 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 01:44:24,638 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:44:24,687 INFO L208 MainTranslator]: Completed translation [2020-10-20 01:44:24,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:24 WrapperNode [2020-10-20 01:44:24,689 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 01:44:24,689 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 01:44:24,690 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 01:44:24,690 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 01:44:24,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:24" (1/1) ... [2020-10-20 01:44:24,720 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:24" (1/1) ... [2020-10-20 01:44:24,767 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 01:44:24,768 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 01:44:24,768 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 01:44:24,768 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 01:44:24,778 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:24" (1/1) ... [2020-10-20 01:44:24,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:24" (1/1) ... [2020-10-20 01:44:24,785 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:24" (1/1) ... [2020-10-20 01:44:24,786 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:24" (1/1) ... [2020-10-20 01:44:24,801 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:24" (1/1) ... [2020-10-20 01:44:24,810 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:24" (1/1) ... [2020-10-20 01:44:24,815 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:24" (1/1) ... [2020-10-20 01:44:24,822 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 01:44:24,823 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 01:44:24,823 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 01:44:24,823 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 01:44:24,824 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:44:24,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 01:44:24,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 01:44:24,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 01:44:24,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 01:44:25,989 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 01:44:25,989 INFO L298 CfgBuilder]: Removed 200 assume(true) statements. [2020-10-20 01:44:25,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:44:25 BoogieIcfgContainer [2020-10-20 01:44:25,992 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 01:44:26,006 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 01:44:26,007 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 01:44:26,010 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 01:44:26,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 01:44:23" (1/3) ... [2020-10-20 01:44:26,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1691a040 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:44:26, skipping insertion in model container [2020-10-20 01:44:26,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:24" (2/3) ... [2020-10-20 01:44:26,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1691a040 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:44:26, skipping insertion in model container [2020-10-20 01:44:26,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:44:25" (3/3) ... [2020-10-20 01:44:26,015 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product58.cil.c [2020-10-20 01:44:26,028 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 01:44:26,038 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-20 01:44:26,054 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-20 01:44:26,091 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 01:44:26,091 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 01:44:26,091 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 01:44:26,092 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 01:44:26,092 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 01:44:26,092 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 01:44:26,093 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 01:44:26,093 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 01:44:26,122 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states. [2020-10-20 01:44:26,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-20 01:44:26,130 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:26,131 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:44:26,132 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:26,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:26,138 INFO L82 PathProgramCache]: Analyzing trace with hash -1844641052, now seen corresponding path program 1 times [2020-10-20 01:44:26,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:26,152 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182642598] [2020-10-20 01:44:26,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:26,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:26,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:44:26,421 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182642598] [2020-10-20 01:44:26,422 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:26,422 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:44:26,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903311801] [2020-10-20 01:44:26,428 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 01:44:26,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:26,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 01:44:26,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 01:44:26,464 INFO L87 Difference]: Start difference. First operand 138 states. Second operand 2 states. [2020-10-20 01:44:26,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:26,498 INFO L93 Difference]: Finished difference Result 267 states and 398 transitions. [2020-10-20 01:44:26,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 01:44:26,500 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-10-20 01:44:26,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:26,513 INFO L225 Difference]: With dead ends: 267 [2020-10-20 01:44:26,513 INFO L226 Difference]: Without dead ends: 131 [2020-10-20 01:44:26,517 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 01:44:26,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-10-20 01:44:26,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2020-10-20 01:44:26,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-10-20 01:44:26,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 189 transitions. [2020-10-20 01:44:26,568 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 189 transitions. Word has length 16 [2020-10-20 01:44:26,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:26,568 INFO L481 AbstractCegarLoop]: Abstraction has 131 states and 189 transitions. [2020-10-20 01:44:26,568 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 01:44:26,568 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 189 transitions. [2020-10-20 01:44:26,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 01:44:26,569 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:26,570 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:44:26,570 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 01:44:26,570 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:26,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:26,571 INFO L82 PathProgramCache]: Analyzing trace with hash -867808078, now seen corresponding path program 1 times [2020-10-20 01:44:26,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:26,571 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392201330] [2020-10-20 01:44:26,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:26,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:26,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:44:26,703 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392201330] [2020-10-20 01:44:26,703 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:26,703 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:44:26,703 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726607075] [2020-10-20 01:44:26,705 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:44:26,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:26,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:44:26,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:44:26,706 INFO L87 Difference]: Start difference. First operand 131 states and 189 transitions. Second operand 3 states. [2020-10-20 01:44:26,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:26,722 INFO L93 Difference]: Finished difference Result 131 states and 189 transitions. [2020-10-20 01:44:26,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:44:26,723 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-10-20 01:44:26,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:26,724 INFO L225 Difference]: With dead ends: 131 [2020-10-20 01:44:26,724 INFO L226 Difference]: Without dead ends: 53 [2020-10-20 01:44:26,726 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:44:26,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-10-20 01:44:26,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-10-20 01:44:26,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-10-20 01:44:26,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 76 transitions. [2020-10-20 01:44:26,733 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 76 transitions. Word has length 17 [2020-10-20 01:44:26,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:26,734 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 76 transitions. [2020-10-20 01:44:26,734 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:44:26,734 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 76 transitions. [2020-10-20 01:44:26,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-20 01:44:26,737 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:26,737 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:44:26,737 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 01:44:26,737 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:26,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:26,738 INFO L82 PathProgramCache]: Analyzing trace with hash -1529505855, now seen corresponding path program 1 times [2020-10-20 01:44:26,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:26,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069602649] [2020-10-20 01:44:26,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:26,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:26,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:44:26,866 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069602649] [2020-10-20 01:44:26,867 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:26,867 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:44:26,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254710476] [2020-10-20 01:44:26,867 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:44:26,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:26,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:44:26,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:44:26,868 INFO L87 Difference]: Start difference. First operand 53 states and 76 transitions. Second operand 3 states. [2020-10-20 01:44:26,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:26,896 INFO L93 Difference]: Finished difference Result 100 states and 146 transitions. [2020-10-20 01:44:26,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:44:26,896 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-10-20 01:44:26,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:26,898 INFO L225 Difference]: With dead ends: 100 [2020-10-20 01:44:26,898 INFO L226 Difference]: Without dead ends: 53 [2020-10-20 01:44:26,898 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:44:26,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-10-20 01:44:26,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-10-20 01:44:26,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-10-20 01:44:26,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 75 transitions. [2020-10-20 01:44:26,906 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 75 transitions. Word has length 22 [2020-10-20 01:44:26,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:26,906 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 75 transitions. [2020-10-20 01:44:26,907 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:44:26,907 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 75 transitions. [2020-10-20 01:44:26,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-20 01:44:26,908 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:26,908 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:44:26,908 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 01:44:26,908 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:26,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:26,909 INFO L82 PathProgramCache]: Analyzing trace with hash 583703192, now seen corresponding path program 1 times [2020-10-20 01:44:26,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:26,909 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689078211] [2020-10-20 01:44:26,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:26,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:27,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:44:27,005 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689078211] [2020-10-20 01:44:27,005 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:27,006 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:44:27,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55997805] [2020-10-20 01:44:27,006 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:44:27,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:27,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:44:27,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:44:27,011 INFO L87 Difference]: Start difference. First operand 53 states and 75 transitions. Second operand 3 states. [2020-10-20 01:44:27,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:27,108 INFO L93 Difference]: Finished difference Result 121 states and 174 transitions. [2020-10-20 01:44:27,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:44:27,108 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-10-20 01:44:27,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:27,109 INFO L225 Difference]: With dead ends: 121 [2020-10-20 01:44:27,110 INFO L226 Difference]: Without dead ends: 74 [2020-10-20 01:44:27,110 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:44:27,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-10-20 01:44:27,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 72. [2020-10-20 01:44:27,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-10-20 01:44:27,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 101 transitions. [2020-10-20 01:44:27,120 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 101 transitions. Word has length 24 [2020-10-20 01:44:27,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:27,121 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 101 transitions. [2020-10-20 01:44:27,121 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:44:27,121 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 101 transitions. [2020-10-20 01:44:27,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-20 01:44:27,122 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:27,122 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:44:27,123 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 01:44:27,123 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:27,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:27,123 INFO L82 PathProgramCache]: Analyzing trace with hash -198690772, now seen corresponding path program 1 times [2020-10-20 01:44:27,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:27,124 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138960663] [2020-10-20 01:44:27,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:27,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:27,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:44:27,202 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138960663] [2020-10-20 01:44:27,202 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:27,202 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:44:27,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292552445] [2020-10-20 01:44:27,203 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:44:27,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:27,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:44:27,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:44:27,204 INFO L87 Difference]: Start difference. First operand 72 states and 101 transitions. Second operand 5 states. [2020-10-20 01:44:27,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:27,326 INFO L93 Difference]: Finished difference Result 253 states and 363 transitions. [2020-10-20 01:44:27,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 01:44:27,327 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-10-20 01:44:27,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:27,329 INFO L225 Difference]: With dead ends: 253 [2020-10-20 01:44:27,329 INFO L226 Difference]: Without dead ends: 187 [2020-10-20 01:44:27,330 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-20 01:44:27,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2020-10-20 01:44:27,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 115. [2020-10-20 01:44:27,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-10-20 01:44:27,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 158 transitions. [2020-10-20 01:44:27,346 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 158 transitions. Word has length 30 [2020-10-20 01:44:27,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:27,347 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 158 transitions. [2020-10-20 01:44:27,347 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:44:27,347 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 158 transitions. [2020-10-20 01:44:27,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-20 01:44:27,348 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:27,348 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:44:27,349 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 01:44:27,349 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:27,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:27,349 INFO L82 PathProgramCache]: Analyzing trace with hash 2088460330, now seen corresponding path program 1 times [2020-10-20 01:44:27,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:27,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705901864] [2020-10-20 01:44:27,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:27,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:27,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:44:27,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705901864] [2020-10-20 01:44:27,409 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:27,410 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:44:27,410 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479120860] [2020-10-20 01:44:27,410 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 01:44:27,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:27,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 01:44:27,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 01:44:27,411 INFO L87 Difference]: Start difference. First operand 115 states and 158 transitions. Second operand 4 states. [2020-10-20 01:44:27,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:27,563 INFO L93 Difference]: Finished difference Result 238 states and 334 transitions. [2020-10-20 01:44:27,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 01:44:27,563 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-10-20 01:44:27,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:27,565 INFO L225 Difference]: With dead ends: 238 [2020-10-20 01:44:27,565 INFO L226 Difference]: Without dead ends: 172 [2020-10-20 01:44:27,566 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 01:44:27,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-10-20 01:44:27,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 169. [2020-10-20 01:44:27,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-10-20 01:44:27,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 233 transitions. [2020-10-20 01:44:27,584 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 233 transitions. Word has length 31 [2020-10-20 01:44:27,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:27,584 INFO L481 AbstractCegarLoop]: Abstraction has 169 states and 233 transitions. [2020-10-20 01:44:27,584 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 01:44:27,585 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 233 transitions. [2020-10-20 01:44:27,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-20 01:44:27,586 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:27,586 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:44:27,586 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-20 01:44:27,587 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:27,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:27,587 INFO L82 PathProgramCache]: Analyzing trace with hash -1948341528, now seen corresponding path program 1 times [2020-10-20 01:44:27,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:27,590 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468432541] [2020-10-20 01:44:27,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:27,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:27,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:44:27,641 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468432541] [2020-10-20 01:44:27,642 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:27,642 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:44:27,642 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692264790] [2020-10-20 01:44:27,642 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 01:44:27,643 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:27,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 01:44:27,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 01:44:27,643 INFO L87 Difference]: Start difference. First operand 169 states and 233 transitions. Second operand 4 states. [2020-10-20 01:44:27,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:27,729 INFO L93 Difference]: Finished difference Result 473 states and 664 transitions. [2020-10-20 01:44:27,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 01:44:27,730 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-10-20 01:44:27,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:27,732 INFO L225 Difference]: With dead ends: 473 [2020-10-20 01:44:27,732 INFO L226 Difference]: Without dead ends: 352 [2020-10-20 01:44:27,733 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:44:27,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2020-10-20 01:44:27,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 169. [2020-10-20 01:44:27,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-10-20 01:44:27,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 231 transitions. [2020-10-20 01:44:27,752 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 231 transitions. Word has length 31 [2020-10-20 01:44:27,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:27,752 INFO L481 AbstractCegarLoop]: Abstraction has 169 states and 231 transitions. [2020-10-20 01:44:27,752 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 01:44:27,752 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 231 transitions. [2020-10-20 01:44:27,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-20 01:44:27,754 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:27,754 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:44:27,754 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-20 01:44:27,754 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:27,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:27,755 INFO L82 PathProgramCache]: Analyzing trace with hash 1953598758, now seen corresponding path program 1 times [2020-10-20 01:44:27,755 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:27,755 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367551490] [2020-10-20 01:44:27,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:27,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:27,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:44:27,809 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367551490] [2020-10-20 01:44:27,809 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:27,810 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:44:27,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160313427] [2020-10-20 01:44:27,811 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:44:27,811 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:27,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:44:27,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:44:27,811 INFO L87 Difference]: Start difference. First operand 169 states and 231 transitions. Second operand 5 states. [2020-10-20 01:44:28,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:28,020 INFO L93 Difference]: Finished difference Result 512 states and 712 transitions. [2020-10-20 01:44:28,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 01:44:28,021 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-10-20 01:44:28,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:28,023 INFO L225 Difference]: With dead ends: 512 [2020-10-20 01:44:28,023 INFO L226 Difference]: Without dead ends: 349 [2020-10-20 01:44:28,024 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-20 01:44:28,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2020-10-20 01:44:28,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 178. [2020-10-20 01:44:28,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-10-20 01:44:28,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 238 transitions. [2020-10-20 01:44:28,042 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 238 transitions. Word has length 31 [2020-10-20 01:44:28,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:28,042 INFO L481 AbstractCegarLoop]: Abstraction has 178 states and 238 transitions. [2020-10-20 01:44:28,042 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:44:28,043 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 238 transitions. [2020-10-20 01:44:28,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-20 01:44:28,044 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:28,044 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:44:28,044 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-20 01:44:28,045 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:28,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:28,045 INFO L82 PathProgramCache]: Analyzing trace with hash 2005513094, now seen corresponding path program 1 times [2020-10-20 01:44:28,045 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:28,046 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729429606] [2020-10-20 01:44:28,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:28,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:28,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:44:28,109 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729429606] [2020-10-20 01:44:28,109 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:28,109 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:44:28,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041942427] [2020-10-20 01:44:28,110 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 01:44:28,111 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:28,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 01:44:28,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-20 01:44:28,111 INFO L87 Difference]: Start difference. First operand 178 states and 238 transitions. Second operand 6 states. [2020-10-20 01:44:28,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:28,275 INFO L93 Difference]: Finished difference Result 912 states and 1223 transitions. [2020-10-20 01:44:28,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-20 01:44:28,276 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2020-10-20 01:44:28,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:28,281 INFO L225 Difference]: With dead ends: 912 [2020-10-20 01:44:28,281 INFO L226 Difference]: Without dead ends: 740 [2020-10-20 01:44:28,282 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-20 01:44:28,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2020-10-20 01:44:28,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 338. [2020-10-20 01:44:28,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2020-10-20 01:44:28,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 445 transitions. [2020-10-20 01:44:28,327 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 445 transitions. Word has length 34 [2020-10-20 01:44:28,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:28,327 INFO L481 AbstractCegarLoop]: Abstraction has 338 states and 445 transitions. [2020-10-20 01:44:28,328 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 01:44:28,328 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 445 transitions. [2020-10-20 01:44:28,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-20 01:44:28,329 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:28,329 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:44:28,330 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-20 01:44:28,330 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:28,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:28,331 INFO L82 PathProgramCache]: Analyzing trace with hash -514446840, now seen corresponding path program 1 times [2020-10-20 01:44:28,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:28,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725835579] [2020-10-20 01:44:28,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:28,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:28,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:44:28,396 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725835579] [2020-10-20 01:44:28,396 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:28,396 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:44:28,396 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537667142] [2020-10-20 01:44:28,397 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:44:28,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:28,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:44:28,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:44:28,398 INFO L87 Difference]: Start difference. First operand 338 states and 445 transitions. Second operand 5 states. [2020-10-20 01:44:28,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:28,582 INFO L93 Difference]: Finished difference Result 752 states and 993 transitions. [2020-10-20 01:44:28,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 01:44:28,583 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2020-10-20 01:44:28,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:28,586 INFO L225 Difference]: With dead ends: 752 [2020-10-20 01:44:28,586 INFO L226 Difference]: Without dead ends: 510 [2020-10-20 01:44:28,587 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-20 01:44:28,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2020-10-20 01:44:28,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 332. [2020-10-20 01:44:28,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2020-10-20 01:44:28,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 433 transitions. [2020-10-20 01:44:28,618 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 433 transitions. Word has length 34 [2020-10-20 01:44:28,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:28,619 INFO L481 AbstractCegarLoop]: Abstraction has 332 states and 433 transitions. [2020-10-20 01:44:28,619 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:44:28,619 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 433 transitions. [2020-10-20 01:44:28,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-20 01:44:28,621 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:28,621 INFO L422 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] [2020-10-20 01:44:28,621 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-20 01:44:28,621 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:28,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:28,622 INFO L82 PathProgramCache]: Analyzing trace with hash -12835069, now seen corresponding path program 1 times [2020-10-20 01:44:28,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:28,623 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350352221] [2020-10-20 01:44:28,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:28,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:28,685 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-20 01:44:28,685 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350352221] [2020-10-20 01:44:28,686 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:28,686 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:44:28,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198033469] [2020-10-20 01:44:28,687 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:44:28,687 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:28,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:44:28,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:44:28,688 INFO L87 Difference]: Start difference. First operand 332 states and 433 transitions. Second operand 5 states. [2020-10-20 01:44:28,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:28,778 INFO L93 Difference]: Finished difference Result 753 states and 985 transitions. [2020-10-20 01:44:28,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 01:44:28,779 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 53 [2020-10-20 01:44:28,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:28,782 INFO L225 Difference]: With dead ends: 753 [2020-10-20 01:44:28,782 INFO L226 Difference]: Without dead ends: 427 [2020-10-20 01:44:28,783 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-20 01:44:28,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2020-10-20 01:44:28,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 332. [2020-10-20 01:44:28,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2020-10-20 01:44:28,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 427 transitions. [2020-10-20 01:44:28,815 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 427 transitions. Word has length 53 [2020-10-20 01:44:28,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:28,815 INFO L481 AbstractCegarLoop]: Abstraction has 332 states and 427 transitions. [2020-10-20 01:44:28,815 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:44:28,815 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 427 transitions. [2020-10-20 01:44:28,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-20 01:44:28,816 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:28,817 INFO L422 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] [2020-10-20 01:44:28,817 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-20 01:44:28,817 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:28,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:28,818 INFO L82 PathProgramCache]: Analyzing trace with hash -85221627, now seen corresponding path program 1 times [2020-10-20 01:44:28,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:28,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777477128] [2020-10-20 01:44:28,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:28,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:28,873 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-20 01:44:28,873 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777477128] [2020-10-20 01:44:28,873 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:28,873 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:44:28,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975321802] [2020-10-20 01:44:28,874 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 01:44:28,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:28,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 01:44:28,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 01:44:28,875 INFO L87 Difference]: Start difference. First operand 332 states and 427 transitions. Second operand 4 states. [2020-10-20 01:44:28,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:28,938 INFO L93 Difference]: Finished difference Result 676 states and 879 transitions. [2020-10-20 01:44:28,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 01:44:28,939 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-10-20 01:44:28,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:28,941 INFO L225 Difference]: With dead ends: 676 [2020-10-20 01:44:28,941 INFO L226 Difference]: Without dead ends: 350 [2020-10-20 01:44:28,942 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:44:28,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2020-10-20 01:44:28,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 266. [2020-10-20 01:44:28,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-10-20 01:44:28,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 341 transitions. [2020-10-20 01:44:28,967 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 341 transitions. Word has length 53 [2020-10-20 01:44:28,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:28,967 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 341 transitions. [2020-10-20 01:44:28,967 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 01:44:28,967 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 341 transitions. [2020-10-20 01:44:28,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-20 01:44:28,968 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:28,969 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:44:28,969 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-20 01:44:28,969 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:28,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:28,970 INFO L82 PathProgramCache]: Analyzing trace with hash -650520375, now seen corresponding path program 1 times [2020-10-20 01:44:28,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:28,970 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216875350] [2020-10-20 01:44:28,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:28,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:29,033 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-20 01:44:29,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216875350] [2020-10-20 01:44:29,034 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:29,034 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:44:29,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211198657] [2020-10-20 01:44:29,034 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:44:29,035 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:29,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:44:29,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:44:29,035 INFO L87 Difference]: Start difference. First operand 266 states and 341 transitions. Second operand 5 states. [2020-10-20 01:44:29,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:29,142 INFO L93 Difference]: Finished difference Result 878 states and 1149 transitions. [2020-10-20 01:44:29,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 01:44:29,143 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 54 [2020-10-20 01:44:29,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:29,147 INFO L225 Difference]: With dead ends: 878 [2020-10-20 01:44:29,147 INFO L226 Difference]: Without dead ends: 666 [2020-10-20 01:44:29,148 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-20 01:44:29,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2020-10-20 01:44:29,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 272. [2020-10-20 01:44:29,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2020-10-20 01:44:29,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 347 transitions. [2020-10-20 01:44:29,182 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 347 transitions. Word has length 54 [2020-10-20 01:44:29,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:29,184 INFO L481 AbstractCegarLoop]: Abstraction has 272 states and 347 transitions. [2020-10-20 01:44:29,184 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:44:29,186 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 347 transitions. [2020-10-20 01:44:29,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-20 01:44:29,187 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:29,187 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:44:29,188 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-20 01:44:29,194 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:29,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:29,194 INFO L82 PathProgramCache]: Analyzing trace with hash -1043547385, now seen corresponding path program 1 times [2020-10-20 01:44:29,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:29,199 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396839961] [2020-10-20 01:44:29,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:29,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:29,303 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-20 01:44:29,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396839961] [2020-10-20 01:44:29,304 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:29,305 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:44:29,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51504552] [2020-10-20 01:44:29,306 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:44:29,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:29,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:44:29,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:44:29,307 INFO L87 Difference]: Start difference. First operand 272 states and 347 transitions. Second operand 5 states. [2020-10-20 01:44:29,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:29,528 INFO L93 Difference]: Finished difference Result 708 states and 904 transitions. [2020-10-20 01:44:29,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-20 01:44:29,529 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 54 [2020-10-20 01:44:29,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:29,532 INFO L225 Difference]: With dead ends: 708 [2020-10-20 01:44:29,533 INFO L226 Difference]: Without dead ends: 706 [2020-10-20 01:44:29,534 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-20 01:44:29,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-10-20 01:44:29,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 272. [2020-10-20 01:44:29,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2020-10-20 01:44:29,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 345 transitions. [2020-10-20 01:44:29,569 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 345 transitions. Word has length 54 [2020-10-20 01:44:29,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:29,569 INFO L481 AbstractCegarLoop]: Abstraction has 272 states and 345 transitions. [2020-10-20 01:44:29,570 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:44:29,570 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 345 transitions. [2020-10-20 01:44:29,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-20 01:44:29,571 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:29,571 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:44:29,571 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-20 01:44:29,571 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:29,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:29,572 INFO L82 PathProgramCache]: Analyzing trace with hash 614015185, now seen corresponding path program 1 times [2020-10-20 01:44:29,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:29,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817448954] [2020-10-20 01:44:29,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:29,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:29,662 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:44:29,663 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817448954] [2020-10-20 01:44:29,663 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [18851927] [2020-10-20 01:44:29,663 INFO L95 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 [2020-10-20 01:44:29,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:29,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-20 01:44:29,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 01:44:29,880 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:44:29,880 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 01:44:29,881 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2020-10-20 01:44:29,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346075648] [2020-10-20 01:44:29,881 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 01:44:29,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:29,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 01:44:29,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-20 01:44:29,883 INFO L87 Difference]: Start difference. First operand 272 states and 345 transitions. Second operand 6 states. [2020-10-20 01:44:30,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:30,208 INFO L93 Difference]: Finished difference Result 855 states and 1102 transitions. [2020-10-20 01:44:30,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-20 01:44:30,208 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 55 [2020-10-20 01:44:30,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:30,212 INFO L225 Difference]: With dead ends: 855 [2020-10-20 01:44:30,212 INFO L226 Difference]: Without dead ends: 637 [2020-10-20 01:44:30,213 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-10-20 01:44:30,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2020-10-20 01:44:30,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 386. [2020-10-20 01:44:30,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 386 states. [2020-10-20 01:44:30,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 495 transitions. [2020-10-20 01:44:30,290 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 495 transitions. Word has length 55 [2020-10-20 01:44:30,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:30,290 INFO L481 AbstractCegarLoop]: Abstraction has 386 states and 495 transitions. [2020-10-20 01:44:30,290 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 01:44:30,291 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 495 transitions. [2020-10-20 01:44:30,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-20 01:44:30,292 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:30,292 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:44:30,507 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-10-20 01:44:30,507 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:30,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:30,508 INFO L82 PathProgramCache]: Analyzing trace with hash -18124376, now seen corresponding path program 2 times [2020-10-20 01:44:30,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:30,508 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211758895] [2020-10-20 01:44:30,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:30,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:30,679 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-20 01:44:30,679 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211758895] [2020-10-20 01:44:30,679 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:30,680 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:44:30,680 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513239355] [2020-10-20 01:44:30,680 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:44:30,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:30,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:44:30,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:44:30,682 INFO L87 Difference]: Start difference. First operand 386 states and 495 transitions. Second operand 5 states. [2020-10-20 01:44:31,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:31,237 INFO L93 Difference]: Finished difference Result 1180 states and 1538 transitions. [2020-10-20 01:44:31,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 01:44:31,237 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 76 [2020-10-20 01:44:31,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:31,242 INFO L225 Difference]: With dead ends: 1180 [2020-10-20 01:44:31,242 INFO L226 Difference]: Without dead ends: 846 [2020-10-20 01:44:31,243 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-20 01:44:31,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2020-10-20 01:44:31,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 532. [2020-10-20 01:44:31,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 532 states. [2020-10-20 01:44:31,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 679 transitions. [2020-10-20 01:44:31,327 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 679 transitions. Word has length 76 [2020-10-20 01:44:31,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:31,327 INFO L481 AbstractCegarLoop]: Abstraction has 532 states and 679 transitions. [2020-10-20 01:44:31,327 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:44:31,328 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 679 transitions. [2020-10-20 01:44:31,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-20 01:44:31,329 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:31,329 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-20 01:44:31,329 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-20 01:44:31,330 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:31,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:31,330 INFO L82 PathProgramCache]: Analyzing trace with hash 256635238, now seen corresponding path program 1 times [2020-10-20 01:44:31,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:31,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460387120] [2020-10-20 01:44:31,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:31,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:31,411 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-20 01:44:31,412 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460387120] [2020-10-20 01:44:31,412 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [467910510] [2020-10-20 01:44:31,413 INFO L95 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 [2020-10-20 01:44:31,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:31,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 01:44:31,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 01:44:31,608 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-20 01:44:31,609 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-20 01:44:31,609 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2020-10-20 01:44:31,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064882554] [2020-10-20 01:44:31,610 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:44:31,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:31,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:44:31,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-20 01:44:31,611 INFO L87 Difference]: Start difference. First operand 532 states and 679 transitions. Second operand 5 states. [2020-10-20 01:44:31,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:31,719 INFO L93 Difference]: Finished difference Result 934 states and 1186 transitions. [2020-10-20 01:44:31,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 01:44:31,720 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 76 [2020-10-20 01:44:31,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:31,720 INFO L225 Difference]: With dead ends: 934 [2020-10-20 01:44:31,720 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 01:44:31,722 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-20 01:44:31,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 01:44:31,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 01:44:31,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 01:44:31,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 01:44:31,723 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 76 [2020-10-20 01:44:31,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:31,724 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 01:44:31,724 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:44:31,724 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 01:44:31,724 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 01:44:31,930 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2020-10-20 01:44:31,934 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-20 01:44:33,401 WARN L193 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 284 DAG size of output: 253 [2020-10-20 01:44:33,739 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 143 [2020-10-20 01:44:34,379 WARN L193 SmtUtils]: Spent 562.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 222 [2020-10-20 01:44:34,995 WARN L193 SmtUtils]: Spent 611.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 234 [2020-10-20 01:44:35,506 WARN L193 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 288 DAG size of output: 256 [2020-10-20 01:44:35,669 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 140 [2020-10-20 01:44:36,058 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 288 DAG size of output: 256 [2020-10-20 01:44:36,244 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 167 [2020-10-20 01:44:36,396 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 140 [2020-10-20 01:44:38,545 WARN L193 SmtUtils]: Spent 2.06 s on a formula simplification. DAG size of input: 247 DAG size of output: 29 [2020-10-20 01:44:38,869 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 22 [2020-10-20 01:44:39,486 WARN L193 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 23 [2020-10-20 01:44:39,717 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 24 [2020-10-20 01:44:41,179 WARN L193 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 220 DAG size of output: 29 [2020-10-20 01:44:43,057 WARN L193 SmtUtils]: Spent 1.86 s on a formula simplification. DAG size of input: 232 DAG size of output: 22 [2020-10-20 01:44:45,174 WARN L193 SmtUtils]: Spent 2.11 s on a formula simplification. DAG size of input: 251 DAG size of output: 21 [2020-10-20 01:44:45,669 WARN L193 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 32 [2020-10-20 01:44:47,830 WARN L193 SmtUtils]: Spent 2.16 s on a formula simplification. DAG size of input: 251 DAG size of output: 21 [2020-10-20 01:44:48,668 WARN L193 SmtUtils]: Spent 832.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 40 [2020-10-20 01:44:49,292 WARN L193 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 31 [2020-10-20 01:44:49,492 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 16 [2020-10-20 01:44:49,751 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 24 [2020-10-20 01:44:49,755 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 01:44:49,755 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-20 01:44:49,755 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-20 01:44:49,756 INFO L274 CegarLoopResult]: For program point L3-2(line 3) no Hoare annotation was computed. [2020-10-20 01:44:49,756 INFO L274 CegarLoopResult]: For program point L930(lines 929 976) no Hoare annotation was computed. [2020-10-20 01:44:49,756 INFO L274 CegarLoopResult]: For program point L798(lines 798 804) no Hoare annotation was computed. [2020-10-20 01:44:49,756 INFO L274 CegarLoopResult]: For program point L765(lines 765 773) no Hoare annotation was computed. [2020-10-20 01:44:49,756 INFO L274 CegarLoopResult]: For program point L798-2(lines 798 804) no Hoare annotation was computed. [2020-10-20 01:44:49,756 INFO L274 CegarLoopResult]: For program point L765-1(lines 765 773) no Hoare annotation was computed. [2020-10-20 01:44:49,756 INFO L274 CegarLoopResult]: For program point L765-2(lines 765 773) no Hoare annotation was computed. [2020-10-20 01:44:49,756 INFO L274 CegarLoopResult]: For program point L798-4(lines 798 804) no Hoare annotation was computed. [2020-10-20 01:44:49,756 INFO L274 CegarLoopResult]: For program point L798-6(lines 798 804) no Hoare annotation was computed. [2020-10-20 01:44:49,756 INFO L274 CegarLoopResult]: For program point L798-8(lines 798 804) no Hoare annotation was computed. [2020-10-20 01:44:49,757 INFO L274 CegarLoopResult]: For program point L798-10(lines 798 804) no Hoare annotation was computed. [2020-10-20 01:44:49,757 INFO L274 CegarLoopResult]: For program point L931(lines 931 935) no Hoare annotation was computed. [2020-10-20 01:44:49,757 INFO L270 CegarLoopResult]: At program point L832(lines 827 835) the Hoare annotation is: false [2020-10-20 01:44:49,757 INFO L270 CegarLoopResult]: At program point L832-1(lines 827 835) the Hoare annotation is: false [2020-10-20 01:44:49,758 INFO L270 CegarLoopResult]: At program point L832-2(lines 827 835) the Hoare annotation is: false [2020-10-20 01:44:49,758 INFO L270 CegarLoopResult]: At program point L568-2(lines 568 582) the Hoare annotation is: false [2020-10-20 01:44:49,758 INFO L274 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-10-20 01:44:49,758 INFO L274 CegarLoopResult]: For program point L536(lines 536 542) no Hoare annotation was computed. [2020-10-20 01:44:49,758 INFO L274 CegarLoopResult]: For program point L536-1(lines 536 542) no Hoare annotation was computed. [2020-10-20 01:44:49,758 INFO L274 CegarLoopResult]: For program point L536-2(lines 536 542) no Hoare annotation was computed. [2020-10-20 01:44:49,758 INFO L274 CegarLoopResult]: For program point L536-3(lines 536 542) no Hoare annotation was computed. [2020-10-20 01:44:49,759 INFO L274 CegarLoopResult]: For program point L536-4(lines 536 542) no Hoare annotation was computed. [2020-10-20 01:44:49,759 INFO L274 CegarLoopResult]: For program point L536-5(lines 536 542) no Hoare annotation was computed. [2020-10-20 01:44:49,759 INFO L274 CegarLoopResult]: For program point L900(lines 900 904) no Hoare annotation was computed. [2020-10-20 01:44:49,760 INFO L274 CegarLoopResult]: For program point L900-2(lines 900 904) no Hoare annotation was computed. [2020-10-20 01:44:49,760 INFO L274 CegarLoopResult]: For program point L900-3(lines 900 904) no Hoare annotation was computed. [2020-10-20 01:44:49,760 INFO L274 CegarLoopResult]: For program point L735(lines 735 752) no Hoare annotation was computed. [2020-10-20 01:44:49,760 INFO L274 CegarLoopResult]: For program point L900-5(lines 900 904) no Hoare annotation was computed. [2020-10-20 01:44:49,760 INFO L274 CegarLoopResult]: For program point L735-1(lines 735 752) no Hoare annotation was computed. [2020-10-20 01:44:49,761 INFO L274 CegarLoopResult]: For program point L900-6(lines 900 904) no Hoare annotation was computed. [2020-10-20 01:44:49,761 INFO L274 CegarLoopResult]: For program point L735-2(lines 735 752) no Hoare annotation was computed. [2020-10-20 01:44:49,761 INFO L274 CegarLoopResult]: For program point L735-3(lines 735 752) no Hoare annotation was computed. [2020-10-20 01:44:49,761 INFO L274 CegarLoopResult]: For program point L900-8(lines 900 904) no Hoare annotation was computed. [2020-10-20 01:44:49,761 INFO L274 CegarLoopResult]: For program point L735-4(lines 735 752) no Hoare annotation was computed. [2020-10-20 01:44:49,761 INFO L274 CegarLoopResult]: For program point L735-5(lines 735 752) no Hoare annotation was computed. [2020-10-20 01:44:49,762 INFO L274 CegarLoopResult]: For program point L471(lines 471 475) no Hoare annotation was computed. [2020-10-20 01:44:49,762 INFO L274 CegarLoopResult]: For program point L967(lines 967 971) no Hoare annotation was computed. [2020-10-20 01:44:49,762 INFO L270 CegarLoopResult]: At program point L967-2(lines 703 709) the Hoare annotation is: (let ((.cse1 (<= 2 ~waterLevel~0)) (.cse0 (= 1 ~systemActive~0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and (= ULTIMATE.start_activatePump_~tmp~7 0) .cse0 .cse1 .cse3) (and (= ~waterLevel~0 1) .cse0 .cse2 .cse3))) [2020-10-20 01:44:49,762 INFO L270 CegarLoopResult]: At program point L703(lines 702 721) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= 1 ~systemActive~0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2) (and (= ~waterLevel~0 1) .cse0 .cse1 .cse2) (and (= ULTIMATE.start_activatePump_~tmp~7 0) .cse0 .cse2 (<= 1 ~waterLevel~0)))) [2020-10-20 01:44:49,762 INFO L274 CegarLoopResult]: For program point L703-1(lines 703 709) no Hoare annotation was computed. [2020-10-20 01:44:49,762 INFO L270 CegarLoopResult]: At program point L703-2(lines 702 721) the Hoare annotation is: false [2020-10-20 01:44:49,763 INFO L270 CegarLoopResult]: At program point L703-3(lines 702 721) the Hoare annotation is: false [2020-10-20 01:44:49,763 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 01:44:49,763 INFO L274 CegarLoopResult]: For program point L572(lines 572 576) no Hoare annotation was computed. [2020-10-20 01:44:49,763 INFO L274 CegarLoopResult]: For program point L572-1(lines 703 709) no Hoare annotation was computed. [2020-10-20 01:44:49,763 INFO L274 CegarLoopResult]: For program point L441(line 441) no Hoare annotation was computed. [2020-10-20 01:44:49,763 INFO L274 CegarLoopResult]: For program point L441-1(line 441) no Hoare annotation was computed. [2020-10-20 01:44:49,763 INFO L274 CegarLoopResult]: For program point L441-2(line 441) no Hoare annotation was computed. [2020-10-20 01:44:49,763 INFO L274 CegarLoopResult]: For program point L739(lines 739 747) no Hoare annotation was computed. [2020-10-20 01:44:49,763 INFO L274 CegarLoopResult]: For program point L739-1(lines 739 747) no Hoare annotation was computed. [2020-10-20 01:44:49,763 INFO L274 CegarLoopResult]: For program point L739-2(lines 739 747) no Hoare annotation was computed. [2020-10-20 01:44:49,764 INFO L274 CegarLoopResult]: For program point L739-3(lines 739 747) no Hoare annotation was computed. [2020-10-20 01:44:49,764 INFO L274 CegarLoopResult]: For program point L739-4(lines 739 747) no Hoare annotation was computed. [2020-10-20 01:44:49,764 INFO L274 CegarLoopResult]: For program point L739-5(lines 739 747) no Hoare annotation was computed. [2020-10-20 01:44:49,764 INFO L270 CegarLoopResult]: At program point L541(lines 532 545) the Hoare annotation is: false [2020-10-20 01:44:49,764 INFO L270 CegarLoopResult]: At program point L541-1(lines 532 545) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 1)) (and (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2))) [2020-10-20 01:44:49,764 INFO L270 CegarLoopResult]: At program point L541-2(lines 532 545) the Hoare annotation is: false [2020-10-20 01:44:49,764 INFO L270 CegarLoopResult]: At program point L541-3(lines 532 545) the Hoare annotation is: false [2020-10-20 01:44:49,764 INFO L270 CegarLoopResult]: At program point L541-4(lines 532 545) the Hoare annotation is: false [2020-10-20 01:44:49,764 INFO L270 CegarLoopResult]: At program point L541-5(lines 532 545) the Hoare annotation is: false [2020-10-20 01:44:49,764 INFO L274 CegarLoopResult]: For program point L939(lines 939 945) no Hoare annotation was computed. [2020-10-20 01:44:49,765 INFO L270 CegarLoopResult]: At program point L939-1(lines 939 945) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse3 (<= 1 ~waterLevel~0)) (.cse0 (= 1 ~systemActive~0)) (.cse4 (<= 2 ~waterLevel~0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse4 .cse1 .cse2) (and (<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~3) .cse0 .cse1 .cse2 .cse3 (<= 1 |ULTIMATE.start_getWaterLevel_#res|)) (and (= ULTIMATE.start_activatePump_~tmp~7 0) .cse0 .cse4 .cse2))) [2020-10-20 01:44:49,765 INFO L270 CegarLoopResult]: At program point L906(lines 891 909) the Hoare annotation is: (and (= ULTIMATE.start_activatePump_~tmp~7 0) (= 1 ~systemActive~0) (= ULTIMATE.start_isLowWaterLevel_~tmp~9 0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (<= 1 ULTIMATE.start_isLowWaterLevel_~tmp___0~2) (<= 1 |ULTIMATE.start_isLowWaterLevel_#res|) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0)) [2020-10-20 01:44:49,765 INFO L270 CegarLoopResult]: At program point L906-1(lines 891 909) the Hoare annotation is: false [2020-10-20 01:44:49,765 INFO L270 CegarLoopResult]: At program point L906-2(lines 891 909) the Hoare annotation is: false [2020-10-20 01:44:49,765 INFO L270 CegarLoopResult]: At program point L710(lines 710 716) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= ULTIMATE.start_activatePump_~tmp~7 0) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) .cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| 1) (<= 2 ~waterLevel~0) (= ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~5 1) .cse1 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 1) (= ULTIMATE.start_isHighWaterLevel_~tmp~8 0)) (and .cse0 (= ~pumpRunning~0 0) .cse1 (<= 1 ~waterLevel~0)))) [2020-10-20 01:44:49,765 INFO L270 CegarLoopResult]: At program point L710-1(lines 710 716) the Hoare annotation is: false [2020-10-20 01:44:49,765 INFO L274 CegarLoopResult]: For program point L644(lines 644 651) no Hoare annotation was computed. [2020-10-20 01:44:49,765 INFO L270 CegarLoopResult]: At program point L710-2(lines 710 716) the Hoare annotation is: false [2020-10-20 01:44:49,765 INFO L277 CegarLoopResult]: At program point L644-1(lines 644 651) the Hoare annotation is: true [2020-10-20 01:44:49,765 INFO L270 CegarLoopResult]: At program point L977(lines 928 978) the Hoare annotation is: false [2020-10-20 01:44:49,766 INFO L270 CegarLoopResult]: At program point L680(lines 1 984) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0)) [2020-10-20 01:44:49,766 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 01:44:49,766 INFO L274 CegarLoopResult]: For program point L483(lines 483 487) no Hoare annotation was computed. [2020-10-20 01:44:49,766 INFO L274 CegarLoopResult]: For program point L881(lines 881 885) no Hoare annotation was computed. [2020-10-20 01:44:49,766 INFO L274 CegarLoopResult]: For program point L881-2(lines 881 885) no Hoare annotation was computed. [2020-10-20 01:44:49,766 INFO L274 CegarLoopResult]: For program point L881-3(lines 881 885) no Hoare annotation was computed. [2020-10-20 01:44:49,767 INFO L274 CegarLoopResult]: For program point L881-5(lines 881 885) no Hoare annotation was computed. [2020-10-20 01:44:49,767 INFO L274 CegarLoopResult]: For program point L881-6(lines 881 885) no Hoare annotation was computed. [2020-10-20 01:44:49,767 INFO L270 CegarLoopResult]: At program point L617(lines 613 619) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0)) [2020-10-20 01:44:49,767 INFO L274 CegarLoopResult]: For program point L881-8(lines 881 885) no Hoare annotation was computed. [2020-10-20 01:44:49,767 INFO L274 CegarLoopResult]: For program point L881-9(lines 881 885) no Hoare annotation was computed. [2020-10-20 01:44:49,767 INFO L270 CegarLoopResult]: At program point L551(lines 546 554) the Hoare annotation is: (and (= ULTIMATE.start_activatePump_~tmp~7 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0)) [2020-10-20 01:44:49,767 INFO L270 CegarLoopResult]: At program point L551-1(lines 546 554) the Hoare annotation is: false [2020-10-20 01:44:49,767 INFO L274 CegarLoopResult]: For program point L881-11(lines 881 885) no Hoare annotation was computed. [2020-10-20 01:44:49,767 INFO L270 CegarLoopResult]: At program point L551-2(lines 546 554) the Hoare annotation is: false [2020-10-20 01:44:49,768 INFO L274 CegarLoopResult]: For program point L881-12(lines 881 885) no Hoare annotation was computed. [2020-10-20 01:44:49,768 INFO L274 CegarLoopResult]: For program point L419(lines 419 432) no Hoare annotation was computed. [2020-10-20 01:44:49,768 INFO L274 CegarLoopResult]: For program point L881-14(lines 881 885) no Hoare annotation was computed. [2020-10-20 01:44:49,768 INFO L270 CegarLoopResult]: At program point L419-1(lines 1 984) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= 1 ~systemActive~0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~3) .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) (<= 1 |ULTIMATE.start_getWaterLevel_#res|)) (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse2) (and (= ULTIMATE.start_activatePump_~tmp~7 0) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) .cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| 1) (<= 2 ~waterLevel~0) (<= 2 |ULTIMATE.start_getWaterLevel_#res|) (= ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~5 1) .cse2 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 1) (<= 2 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~3) (= ULTIMATE.start_isHighWaterLevel_~tmp~8 0)))) [2020-10-20 01:44:49,769 INFO L274 CegarLoopResult]: For program point L881-15(lines 881 885) no Hoare annotation was computed. [2020-10-20 01:44:49,769 INFO L274 CegarLoopResult]: For program point L419-2(lines 419 432) no Hoare annotation was computed. [2020-10-20 01:44:49,769 INFO L270 CegarLoopResult]: At program point L419-3(lines 1 984) the Hoare annotation is: false [2020-10-20 01:44:49,769 INFO L274 CegarLoopResult]: For program point L881-17(lines 881 885) no Hoare annotation was computed. [2020-10-20 01:44:49,769 INFO L274 CegarLoopResult]: For program point L419-4(lines 419 432) no Hoare annotation was computed. [2020-10-20 01:44:49,769 INFO L270 CegarLoopResult]: At program point L419-5(lines 1 984) the Hoare annotation is: false [2020-10-20 01:44:49,769 INFO L274 CegarLoopResult]: For program point L949(lines 949 955) no Hoare annotation was computed. [2020-10-20 01:44:49,769 INFO L270 CegarLoopResult]: At program point L949-1(lines 949 955) the Hoare annotation is: (let ((.cse1 (<= 2 ~waterLevel~0)) (.cse0 (= 1 ~systemActive~0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and (= ULTIMATE.start_activatePump_~tmp~7 0) .cse0 .cse1 .cse3) (and (= ~waterLevel~0 1) .cse0 .cse2 .cse3))) [2020-10-20 01:44:49,769 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 01:44:49,770 INFO L277 CegarLoopResult]: At program point L653(lines 634 656) the Hoare annotation is: true [2020-10-20 01:44:49,770 INFO L274 CegarLoopResult]: For program point L423(lines 423 429) no Hoare annotation was computed. [2020-10-20 01:44:49,770 INFO L274 CegarLoopResult]: For program point L423-2(lines 423 429) no Hoare annotation was computed. [2020-10-20 01:44:49,770 INFO L274 CegarLoopResult]: For program point L423-4(lines 423 429) no Hoare annotation was computed. [2020-10-20 01:44:49,770 INFO L270 CegarLoopResult]: At program point L688(lines 683 691) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0)) [2020-10-20 01:44:49,770 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 01:44:49,770 INFO L270 CegarLoopResult]: At program point L887(lines 872 890) the Hoare annotation is: false [2020-10-20 01:44:49,770 INFO L270 CegarLoopResult]: At program point L887-1(lines 872 890) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0) (= ULTIMATE.start_isHighWaterLevel_~tmp~8 1) .cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| 0) .cse1 .cse2 (<= 1 ~waterLevel~0) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 1)) (and (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) .cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| 1) (<= 2 ~waterLevel~0) .cse1 .cse2 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 1) (= ULTIMATE.start_isHighWaterLevel_~tmp~8 0)))) [2020-10-20 01:44:49,771 INFO L270 CegarLoopResult]: At program point L887-2(lines 872 890) the Hoare annotation is: false [2020-10-20 01:44:49,771 INFO L270 CegarLoopResult]: At program point L887-3(lines 872 890) the Hoare annotation is: false [2020-10-20 01:44:49,771 INFO L270 CegarLoopResult]: At program point L887-4(lines 872 890) the Hoare annotation is: false [2020-10-20 01:44:49,772 INFO L270 CegarLoopResult]: At program point L887-5(lines 872 890) the Hoare annotation is: false [2020-10-20 01:44:49,772 INFO L274 CegarLoopResult]: For program point L459(lines 459 463) no Hoare annotation was computed. [2020-10-20 01:44:49,772 INFO L274 CegarLoopResult]: For program point L459-3(lines 459 463) no Hoare annotation was computed. [2020-10-20 01:44:49,772 INFO L274 CegarLoopResult]: For program point L459-6(lines 459 463) no Hoare annotation was computed. [2020-10-20 01:44:49,772 INFO L270 CegarLoopResult]: At program point L823(lines 816 826) the Hoare annotation is: false [2020-10-20 01:44:49,772 INFO L270 CegarLoopResult]: At program point L823-1(lines 816 826) the Hoare annotation is: (and (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_isHighWaterLevel_#res| 1) (<= 2 ~waterLevel~0) (= ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~5 1) (= ~pumpRunning~0 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 1) (= ULTIMATE.start_isHighWaterLevel_~tmp~8 0)) [2020-10-20 01:44:49,772 INFO L270 CegarLoopResult]: At program point L823-2(lines 816 826) the Hoare annotation is: false [2020-10-20 01:44:49,772 INFO L270 CegarLoopResult]: At program point L823-3(lines 816 826) the Hoare annotation is: false [2020-10-20 01:44:49,772 INFO L270 CegarLoopResult]: At program point L823-4(lines 816 826) the Hoare annotation is: false [2020-10-20 01:44:49,775 INFO L270 CegarLoopResult]: At program point L823-5(lines 816 826) the Hoare annotation is: false [2020-10-20 01:44:49,775 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-20 01:44:49,775 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 01:44:49,776 INFO L270 CegarLoopResult]: At program point L528(lines 523 531) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= ULTIMATE.start_activatePump_~tmp~7 0) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) .cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| 1) (<= 2 |ULTIMATE.start_getWaterLevel_#res|) (<= 2 ~waterLevel~0) (= ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~5 1) .cse1 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 1) (= ULTIMATE.start_isHighWaterLevel_~tmp~8 0)) (and .cse0 (= ~pumpRunning~0 0) .cse1 (<= 1 ~waterLevel~0) (<= 1 |ULTIMATE.start_getWaterLevel_#res|)))) [2020-10-20 01:44:49,776 INFO L270 CegarLoopResult]: At program point L528-1(lines 523 531) the Hoare annotation is: false [2020-10-20 01:44:49,776 INFO L270 CegarLoopResult]: At program point L528-2(lines 523 531) the Hoare annotation is: false [2020-10-20 01:44:49,776 INFO L270 CegarLoopResult]: At program point L496(lines 491 499) the Hoare annotation is: false [2020-10-20 01:44:49,776 INFO L270 CegarLoopResult]: At program point L496-1(lines 491 499) the Hoare annotation is: (and (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_isHighWaterLevel_#res| 1) (<= 2 ~waterLevel~0) (= ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~5 1) (= ~pumpRunning~0 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 1) (= ULTIMATE.start_isHighWaterLevel_~tmp~8 0)) [2020-10-20 01:44:49,776 INFO L270 CegarLoopResult]: At program point L496-2(lines 491 499) the Hoare annotation is: false [2020-10-20 01:44:49,776 INFO L270 CegarLoopResult]: At program point L496-3(lines 491 499) the Hoare annotation is: false [2020-10-20 01:44:49,776 INFO L270 CegarLoopResult]: At program point L496-4(lines 491 499) the Hoare annotation is: false [2020-10-20 01:44:49,777 INFO L270 CegarLoopResult]: At program point L496-5(lines 491 499) the Hoare annotation is: false [2020-10-20 01:44:49,777 INFO L274 CegarLoopResult]: For program point L959(lines 959 972) no Hoare annotation was computed. [2020-10-20 01:44:49,777 INFO L274 CegarLoopResult]: For program point L761(lines 761 778) no Hoare annotation was computed. [2020-10-20 01:44:49,777 INFO L274 CegarLoopResult]: For program point L761-1(lines 761 778) no Hoare annotation was computed. [2020-10-20 01:44:49,777 INFO L274 CegarLoopResult]: For program point L761-2(lines 761 778) no Hoare annotation was computed. [2020-10-20 01:44:49,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 01:44:49 BoogieIcfgContainer [2020-10-20 01:44:49,807 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 01:44:49,807 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 01:44:49,807 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 01:44:49,808 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 01:44:49,808 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:44:25" (3/4) ... [2020-10-20 01:44:49,812 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 01:44:49,834 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2020-10-20 01:44:49,836 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-10-20 01:44:49,837 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-10-20 01:44:49,838 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-10-20 01:44:49,840 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-20 01:44:49,841 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 01:44:49,842 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 01:44:49,875 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((1 <= tmp && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result) || ((((waterLevel == 1 && methaneLevelCritical == 0) && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0)) || ((((((((((tmp == 0 && \result == 0) && 1 == systemActive) && \result == 1) && 2 <= waterLevel) && 2 <= \result) && tmp == 1) && splverifierCounter == 0) && tmp___0 == 1) && 2 <= tmp) && tmp == 0) [2020-10-20 01:44:49,876 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((methaneLevelCritical == 0 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) || (((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0)) || (((((1 <= tmp && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result)) || (((tmp == 0 && 1 == systemActive) && 2 <= waterLevel) && splverifierCounter == 0) [2020-10-20 01:44:49,877 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((tmp == 0 && \result == 0) && 1 == systemActive) && \result == 1) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && tmp___0 == 1) && tmp == 0) || (((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) [2020-10-20 01:44:49,879 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((tmp == 0 && \result == 0) && 1 == systemActive) && \result == 1) && 2 <= \result) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && tmp___0 == 1) && tmp == 0) || ((((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result) [2020-10-20 01:44:49,880 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((tmp == 0 && 1 == systemActive) && \result == 0) && splverifierCounter == 0) && 1 <= waterLevel [2020-10-20 01:44:49,881 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) || ((((\result == 0 && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) [2020-10-20 01:44:49,881 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((tmp == 0 && 1 == systemActive) && tmp == 0) && \result == 0) && 1 <= tmp___0) && 1 <= \result) && splverifierCounter == 0) && 1 <= waterLevel [2020-10-20 01:44:49,882 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((tmp___0 == 0 && tmp == 1) && 1 == systemActive) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) || (((((((\result == 0 && 1 == systemActive) && \result == 1) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && tmp___0 == 1) && tmp == 0) [2020-10-20 01:44:49,884 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((\result == 0 && 1 == systemActive) && \result == 1) && 2 <= waterLevel) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && tmp___0 == 1) && tmp == 0 [2020-10-20 01:44:49,884 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((\result == 0 && 1 == systemActive) && \result == 1) && 2 <= waterLevel) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && tmp___0 == 1) && tmp == 0 [2020-10-20 01:44:49,983 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 01:44:49,983 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 01:44:49,984 INFO L168 Benchmark]: Toolchain (without parser) took 26079.24 ms. Allocated memory was 35.1 MB in the beginning and 188.2 MB in the end (delta: 153.1 MB). Free memory was 11.8 MB in the beginning and 146.6 MB in the end (delta: -134.8 MB). Peak memory consumption was 18.3 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:49,985 INFO L168 Benchmark]: CDTParser took 1.09 ms. Allocated memory is still 33.6 MB. Free memory was 19.0 MB in the beginning and 18.9 MB in the end (delta: 30.3 kB). Peak memory consumption was 30.3 kB. Max. memory is 14.3 GB. [2020-10-20 01:44:49,985 INFO L168 Benchmark]: CACSL2BoogieTranslator took 777.50 ms. Allocated memory was 35.1 MB in the beginning and 45.1 MB in the end (delta: 10.0 MB). Free memory was 10.9 MB in the beginning and 21.5 MB in the end (delta: -10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:49,986 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.19 ms. Allocated memory is still 45.1 MB. Free memory was 21.5 MB in the beginning and 17.2 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:49,986 INFO L168 Benchmark]: Boogie Preprocessor took 54.21 ms. Allocated memory is still 45.1 MB. Free memory was 17.2 MB in the beginning and 14.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:49,986 INFO L168 Benchmark]: RCFGBuilder took 1169.23 ms. Allocated memory was 45.1 MB in the beginning and 50.3 MB in the end (delta: 5.2 MB). Free memory was 13.9 MB in the beginning and 10.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 8.7 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:49,987 INFO L168 Benchmark]: TraceAbstraction took 23801.00 ms. Allocated memory was 50.3 MB in the beginning and 188.2 MB in the end (delta: 137.9 MB). Free memory was 29.3 MB in the beginning and 162.0 MB in the end (delta: -132.7 MB). Peak memory consumption was 163.4 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:49,987 INFO L168 Benchmark]: Witness Printer took 175.91 ms. Allocated memory is still 188.2 MB. Free memory was 162.0 MB in the beginning and 146.6 MB in the end (delta: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:49,992 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.09 ms. Allocated memory is still 33.6 MB. Free memory was 19.0 MB in the beginning and 18.9 MB in the end (delta: 30.3 kB). Peak memory consumption was 30.3 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 777.50 ms. Allocated memory was 35.1 MB in the beginning and 45.1 MB in the end (delta: 10.0 MB). Free memory was 10.9 MB in the beginning and 21.5 MB in the end (delta: -10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 78.19 ms. Allocated memory is still 45.1 MB. Free memory was 21.5 MB in the beginning and 17.2 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 54.21 ms. Allocated memory is still 45.1 MB. Free memory was 17.2 MB in the beginning and 14.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 14.3 GB. * RCFGBuilder took 1169.23 ms. Allocated memory was 45.1 MB in the beginning and 50.3 MB in the end (delta: 5.2 MB). Free memory was 13.9 MB in the beginning and 10.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 8.7 MB. Max. memory is 14.3 GB. * TraceAbstraction took 23801.00 ms. Allocated memory was 50.3 MB in the beginning and 188.2 MB in the end (delta: 137.9 MB). Free memory was 29.3 MB in the beginning and 162.0 MB in the end (delta: -132.7 MB). Peak memory consumption was 163.4 MB. Max. memory is 14.3 GB. * Witness Printer took 175.91 ms. Allocated memory is still 188.2 MB. Free memory was 162.0 MB in the beginning and 146.6 MB in the end (delta: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: 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: 532]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 532]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 939]: Loop Invariant Derived loop invariant: ((((((methaneLevelCritical == 0 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) || (((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0)) || (((((1 <= tmp && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result)) || (((tmp == 0 && 1 == systemActive) && 2 <= waterLevel) && splverifierCounter == 0) - InvariantResult [Line: 891]: Loop Invariant Derived loop invariant: ((((((tmp == 0 && 1 == systemActive) && tmp == 0) && \result == 0) && 1 <= tmp___0) && 1 <= \result) && splverifierCounter == 0) && 1 <= waterLevel - InvariantResult [Line: 816]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 816]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((waterLevel == 1 && 1 == systemActive) && methaneLevelCritical == 0) && pumpRunning == 0 - InvariantResult [Line: 532]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 816]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 532]: Loop Invariant Derived loop invariant: ((((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) || ((((\result == 0 && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 532]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 532]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 710]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 644]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 816]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 816]: Loop Invariant Derived loop invariant: (((((((\result == 0 && 1 == systemActive) && \result == 1) && 2 <= waterLevel) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && tmp___0 == 1) && tmp == 0 - InvariantResult [Line: 816]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 702]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 702]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 928]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 710]: Loop Invariant Derived loop invariant: ((((((((tmp == 0 && \result == 0) && 1 == systemActive) && \result == 1) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && tmp___0 == 1) && tmp == 0) || (((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) - InvariantResult [Line: 683]: Loop Invariant Derived loop invariant: ((waterLevel == 1 && 1 == systemActive) && methaneLevelCritical == 0) && pumpRunning == 0 - InvariantResult [Line: 710]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 523]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 568]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 702]: Loop Invariant Derived loop invariant: ((((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0)) || (((tmp == 0 && 1 == systemActive) && splverifierCounter == 0) && 1 <= waterLevel) - InvariantResult [Line: 949]: Loop Invariant Derived loop invariant: ((((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((tmp == 0 && 1 == systemActive) && 2 <= waterLevel) && splverifierCounter == 0)) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 872]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 827]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 872]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 872]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 523]: Loop Invariant Derived loop invariant: (((((((((tmp == 0 && \result == 0) && 1 == systemActive) && \result == 1) && 2 <= \result) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && tmp___0 == 1) && tmp == 0) || ((((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result) - InvariantResult [Line: 703]: Loop Invariant Derived loop invariant: ((((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((tmp == 0 && 1 == systemActive) && 2 <= waterLevel) && splverifierCounter == 0)) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 523]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 491]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 634]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 491]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((((1 <= tmp && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result) || ((((waterLevel == 1 && methaneLevelCritical == 0) && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0)) || ((((((((((tmp == 0 && \result == 0) && 1 == systemActive) && \result == 1) && 2 <= waterLevel) && 2 <= \result) && tmp == 1) && splverifierCounter == 0) && tmp___0 == 1) && 2 <= tmp) && tmp == 0) - InvariantResult [Line: 872]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 491]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 872]: Loop Invariant Derived loop invariant: (((((((tmp___0 == 0 && tmp == 1) && 1 == systemActive) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) || (((((((\result == 0 && 1 == systemActive) && \result == 1) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && tmp___0 == 1) && tmp == 0) - InvariantResult [Line: 491]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 827]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 872]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 827]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 613]: Loop Invariant Derived loop invariant: ((waterLevel == 1 && 1 == systemActive) && methaneLevelCritical == 0) && pumpRunning == 0 - InvariantResult [Line: 891]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 891]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 546]: Loop Invariant Derived loop invariant: (((tmp == 0 && 1 == systemActive) && \result == 0) && splverifierCounter == 0) && 1 <= waterLevel - InvariantResult [Line: 546]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 491]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 546]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 491]: Loop Invariant Derived loop invariant: (((((((\result == 0 && 1 == systemActive) && \result == 1) && 2 <= waterLevel) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && tmp___0 == 1) && tmp == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 138 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.8s, OverallIterations: 17, TraceHistogramMax: 3, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 17.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1946 SDtfs, 2841 SDslu, 3298 SDs, 0 SdLazy, 463 SolverSat, 84 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 255 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=532occurred in iteration=16, 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, 17 MinimizatonAttempts, 2583 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 55 LocationsWithAnnotation, 55 PreInvPairs, 215 NumberOfFragments, 601 HoareAnnotationTreeSize, 55 FomulaSimplifications, 20504852 FormulaSimplificationTreeSizeReduction, 4.5s HoareSimplificationTime, 55 FomulaSimplificationsInter, 4158415 FormulaSimplificationTreeSizeReductionInter, 13.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 822 NumberOfCodeBlocks, 822 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 803 ConstructedInterpolants, 0 QuantifiedInterpolants, 61794 SizeOfPredicates, 8 NumberOfNonLiveVariables, 941 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 19 InterpolantComputations, 16 PerfectInterpolantSequences, 223/231 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...