./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product59.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_product59.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 98aa11458fb4d2fb3b93f200d7f1e58878ef4fd5 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 01:44:23,685 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 01:44:23,688 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 01:44:23,714 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 01:44:23,714 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 01:44:23,715 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 01:44:23,717 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 01:44:23,719 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 01:44:23,733 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 01:44:23,734 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 01:44:23,735 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 01:44:23,736 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 01:44:23,736 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 01:44:23,737 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 01:44:23,738 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 01:44:23,740 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 01:44:23,741 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 01:44:23,742 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 01:44:23,743 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 01:44:23,745 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 01:44:23,746 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 01:44:23,747 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 01:44:23,749 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 01:44:23,750 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 01:44:23,752 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 01:44:23,752 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 01:44:23,753 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 01:44:23,754 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 01:44:23,754 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 01:44:23,755 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 01:44:23,756 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 01:44:23,756 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 01:44:23,757 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 01:44:23,758 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 01:44:23,759 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 01:44:23,759 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 01:44:23,760 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 01:44:23,760 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 01:44:23,761 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 01:44:23,762 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 01:44:23,762 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 01:44:23,763 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 01:44:23,788 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 01:44:23,788 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 01:44:23,789 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 01:44:23,790 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 01:44:23,790 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 01:44:23,790 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 01:44:23,791 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 01:44:23,791 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 01:44:23,791 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 01:44:23,791 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 01:44:23,792 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 01:44:23,792 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 01:44:23,792 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 01:44:23,792 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 01:44:23,793 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 01:44:23,793 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 01:44:23,793 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 01:44:23,793 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 01:44:23,794 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 01:44:23,794 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 01:44:23,794 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 01:44:23,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:44:23,795 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 01:44:23,795 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 01:44:23,795 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 01:44:23,796 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 01:44:23,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 01:44:23,796 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 01:44:23,796 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 01:44:23,797 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 -> 98aa11458fb4d2fb3b93f200d7f1e58878ef4fd5 [2020-10-20 01:44:24,014 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 01:44:24,039 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 01:44:24,043 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 01:44:24,045 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 01:44:24,047 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 01:44:24,048 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product59.cil.c [2020-10-20 01:44:24,122 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3fc03f09/7ba7ab689d5d4b3f829d6ccd976ad9ec/FLAG26e3a5b8b [2020-10-20 01:44:24,651 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 01:44:24,654 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product59.cil.c [2020-10-20 01:44:24,683 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3fc03f09/7ba7ab689d5d4b3f829d6ccd976ad9ec/FLAG26e3a5b8b [2020-10-20 01:44:24,889 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3fc03f09/7ba7ab689d5d4b3f829d6ccd976ad9ec [2020-10-20 01:44:24,892 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 01:44:24,898 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 01:44:24,900 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 01:44:24,900 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 01:44:24,906 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 01:44:24,908 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:44:24" (1/1) ... [2020-10-20 01:44:24,911 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67a9d5d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:24, skipping insertion in model container [2020-10-20 01:44:24,912 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:44:24" (1/1) ... [2020-10-20 01:44:24,921 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 01:44:24,986 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 01:44:25,505 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:44:25,518 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 01:44:25,593 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:44:25,638 INFO L208 MainTranslator]: Completed translation [2020-10-20 01:44:25,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:25 WrapperNode [2020-10-20 01:44:25,639 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 01:44:25,640 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 01:44:25,640 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 01:44:25,640 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 01:44:25,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:25" (1/1) ... [2020-10-20 01:44:25,668 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:25" (1/1) ... [2020-10-20 01:44:25,719 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 01:44:25,719 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 01:44:25,720 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 01:44:25,720 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 01:44:25,730 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:25" (1/1) ... [2020-10-20 01:44:25,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:25" (1/1) ... [2020-10-20 01:44:25,737 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:25" (1/1) ... [2020-10-20 01:44:25,737 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:25" (1/1) ... [2020-10-20 01:44:25,752 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:25" (1/1) ... [2020-10-20 01:44:25,762 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:25" (1/1) ... [2020-10-20 01:44:25,766 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:25" (1/1) ... [2020-10-20 01:44:25,773 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 01:44:25,774 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 01:44:25,774 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 01:44:25,774 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 01:44:25,775 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:25" (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 01:44:25,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 01:44:25,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 01:44:25,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 01:44:25,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 01:44:27,082 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 01:44:27,083 INFO L298 CfgBuilder]: Removed 202 assume(true) statements. [2020-10-20 01:44:27,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:44:27 BoogieIcfgContainer [2020-10-20 01:44:27,085 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 01:44:27,086 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 01:44:27,087 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 01:44:27,090 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 01:44:27,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 01:44:24" (1/3) ... [2020-10-20 01:44:27,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@218e338a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:44:27, skipping insertion in model container [2020-10-20 01:44:27,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:25" (2/3) ... [2020-10-20 01:44:27,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@218e338a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:44:27, skipping insertion in model container [2020-10-20 01:44:27,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:44:27" (3/3) ... [2020-10-20 01:44:27,094 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product59.cil.c [2020-10-20 01:44:27,105 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 01:44:27,113 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-20 01:44:27,126 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-20 01:44:27,153 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 01:44:27,154 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 01:44:27,154 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 01:44:27,154 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 01:44:27,155 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 01:44:27,156 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 01:44:27,156 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 01:44:27,156 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 01:44:27,176 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states. [2020-10-20 01:44:27,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-20 01:44:27,183 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:27,184 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:44:27,184 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:27,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:27,189 INFO L82 PathProgramCache]: Analyzing trace with hash -1591441701, now seen corresponding path program 1 times [2020-10-20 01:44:27,197 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:27,197 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916950920] [2020-10-20 01:44:27,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:27,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:27,466 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 01:44:27,467 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916950920] [2020-10-20 01:44:27,468 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:27,468 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:44:27,469 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016918304] [2020-10-20 01:44:27,474 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 01:44:27,475 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:27,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 01:44:27,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 01:44:27,492 INFO L87 Difference]: Start difference. First operand 140 states. Second operand 2 states. [2020-10-20 01:44:27,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:27,538 INFO L93 Difference]: Finished difference Result 271 states and 404 transitions. [2020-10-20 01:44:27,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 01:44:27,539 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-10-20 01:44:27,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:27,553 INFO L225 Difference]: With dead ends: 271 [2020-10-20 01:44:27,553 INFO L226 Difference]: Without dead ends: 133 [2020-10-20 01:44:27,557 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 01:44:27,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-10-20 01:44:27,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2020-10-20 01:44:27,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-10-20 01:44:27,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 192 transitions. [2020-10-20 01:44:27,610 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 192 transitions. Word has length 16 [2020-10-20 01:44:27,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:27,611 INFO L481 AbstractCegarLoop]: Abstraction has 133 states and 192 transitions. [2020-10-20 01:44:27,611 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 01:44:27,611 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 192 transitions. [2020-10-20 01:44:27,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 01:44:27,612 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:27,613 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 01:44:27,613 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 01:44:27,613 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:27,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:27,614 INFO L82 PathProgramCache]: Analyzing trace with hash 1656768698, now seen corresponding path program 1 times [2020-10-20 01:44:27,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:27,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981423533] [2020-10-20 01:44:27,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:27,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:27,769 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 01:44:27,771 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981423533] [2020-10-20 01:44:27,771 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:27,772 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:44:27,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562225418] [2020-10-20 01:44:27,773 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:44:27,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:27,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:44:27,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:44:27,774 INFO L87 Difference]: Start difference. First operand 133 states and 192 transitions. Second operand 3 states. [2020-10-20 01:44:27,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:27,790 INFO L93 Difference]: Finished difference Result 133 states and 192 transitions. [2020-10-20 01:44:27,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:44:27,791 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-10-20 01:44:27,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:27,792 INFO L225 Difference]: With dead ends: 133 [2020-10-20 01:44:27,793 INFO L226 Difference]: Without dead ends: 55 [2020-10-20 01:44:27,794 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 01:44:27,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-20 01:44:27,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-10-20 01:44:27,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-20 01:44:27,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 79 transitions. [2020-10-20 01:44:27,802 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 79 transitions. Word has length 17 [2020-10-20 01:44:27,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:27,802 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 79 transitions. [2020-10-20 01:44:27,803 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:44:27,803 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 79 transitions. [2020-10-20 01:44:27,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-20 01:44:27,804 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:27,804 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 01:44:27,804 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 01:44:27,805 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:27,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:27,805 INFO L82 PathProgramCache]: Analyzing trace with hash -1725162559, now seen corresponding path program 1 times [2020-10-20 01:44:27,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:27,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440449203] [2020-10-20 01:44:27,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:27,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:27,929 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 01:44:27,929 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440449203] [2020-10-20 01:44:27,930 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:27,930 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:44:27,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367171353] [2020-10-20 01:44:27,931 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 01:44:27,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:27,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 01:44:27,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-20 01:44:27,932 INFO L87 Difference]: Start difference. First operand 55 states and 79 transitions. Second operand 6 states. [2020-10-20 01:44:28,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:28,254 INFO L93 Difference]: Finished difference Result 176 states and 259 transitions. [2020-10-20 01:44:28,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 01:44:28,255 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2020-10-20 01:44:28,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:28,257 INFO L225 Difference]: With dead ends: 176 [2020-10-20 01:44:28,257 INFO L226 Difference]: Without dead ends: 127 [2020-10-20 01:44:28,258 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-20 01:44:28,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-10-20 01:44:28,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 74. [2020-10-20 01:44:28,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-20 01:44:28,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 108 transitions. [2020-10-20 01:44:28,303 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 108 transitions. Word has length 22 [2020-10-20 01:44:28,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:28,305 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 108 transitions. [2020-10-20 01:44:28,305 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 01:44:28,306 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 108 transitions. [2020-10-20 01:44:28,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-20 01:44:28,310 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:28,310 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 01:44:28,311 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 01:44:28,311 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:28,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:28,312 INFO L82 PathProgramCache]: Analyzing trace with hash 1536171928, now seen corresponding path program 1 times [2020-10-20 01:44:28,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:28,312 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246195321] [2020-10-20 01:44:28,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:28,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:28,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:44:28,399 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246195321] [2020-10-20 01:44:28,399 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:28,399 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:44:28,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185245850] [2020-10-20 01:44:28,400 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:44:28,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:28,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:44:28,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:44:28,401 INFO L87 Difference]: Start difference. First operand 74 states and 108 transitions. Second operand 3 states. [2020-10-20 01:44:28,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:28,445 INFO L93 Difference]: Finished difference Result 163 states and 240 transitions. [2020-10-20 01:44:28,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:44:28,445 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-10-20 01:44:28,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:28,447 INFO L225 Difference]: With dead ends: 163 [2020-10-20 01:44:28,447 INFO L226 Difference]: Without dead ends: 95 [2020-10-20 01:44:28,448 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 01:44:28,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-10-20 01:44:28,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 93. [2020-10-20 01:44:28,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-10-20 01:44:28,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 132 transitions. [2020-10-20 01:44:28,461 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 132 transitions. Word has length 24 [2020-10-20 01:44:28,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:28,461 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 132 transitions. [2020-10-20 01:44:28,461 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:44:28,461 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 132 transitions. [2020-10-20 01:44:28,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-20 01:44:28,467 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:28,467 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:44:28,468 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 01:44:28,468 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:28,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:28,468 INFO L82 PathProgramCache]: Analyzing trace with hash 1391898518, now seen corresponding path program 1 times [2020-10-20 01:44:28,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:28,469 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629798611] [2020-10-20 01:44:28,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:28,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:28,592 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 01:44:28,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629798611] [2020-10-20 01:44:28,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:28,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:44:28,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80989721] [2020-10-20 01:44:28,593 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:44:28,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:28,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:44:28,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:44:28,594 INFO L87 Difference]: Start difference. First operand 93 states and 132 transitions. Second operand 5 states. [2020-10-20 01:44:28,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:28,717 INFO L93 Difference]: Finished difference Result 331 states and 477 transitions. [2020-10-20 01:44:28,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 01:44:28,718 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-10-20 01:44:28,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:28,720 INFO L225 Difference]: With dead ends: 331 [2020-10-20 01:44:28,720 INFO L226 Difference]: Without dead ends: 244 [2020-10-20 01:44:28,722 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 01:44:28,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2020-10-20 01:44:28,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 155. [2020-10-20 01:44:28,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-10-20 01:44:28,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 215 transitions. [2020-10-20 01:44:28,744 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 215 transitions. Word has length 25 [2020-10-20 01:44:28,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:28,745 INFO L481 AbstractCegarLoop]: Abstraction has 155 states and 215 transitions. [2020-10-20 01:44:28,745 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:44:28,745 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 215 transitions. [2020-10-20 01:44:28,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-20 01:44:28,747 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:28,747 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] [2020-10-20 01:44:28,747 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 01:44:28,748 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:28,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:28,748 INFO L82 PathProgramCache]: Analyzing trace with hash -567410472, now seen corresponding path program 1 times [2020-10-20 01:44:28,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:28,749 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875722263] [2020-10-20 01:44:28,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:28,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:28,830 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 01:44:28,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875722263] [2020-10-20 01:44:28,830 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:28,831 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:44:28,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488317011] [2020-10-20 01:44:28,831 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:44:28,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:28,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:44:28,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:44:28,833 INFO L87 Difference]: Start difference. First operand 155 states and 215 transitions. Second operand 5 states. [2020-10-20 01:44:28,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:28,986 INFO L93 Difference]: Finished difference Result 327 states and 462 transitions. [2020-10-20 01:44:28,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-20 01:44:28,986 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-10-20 01:44:28,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:28,989 INFO L225 Difference]: With dead ends: 327 [2020-10-20 01:44:28,989 INFO L226 Difference]: Without dead ends: 325 [2020-10-20 01:44:28,990 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-20 01:44:28,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2020-10-20 01:44:29,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 155. [2020-10-20 01:44:29,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-10-20 01:44:29,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 213 transitions. [2020-10-20 01:44:29,010 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 213 transitions. Word has length 26 [2020-10-20 01:44:29,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:29,011 INFO L481 AbstractCegarLoop]: Abstraction has 155 states and 213 transitions. [2020-10-20 01:44:29,011 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:44:29,011 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 213 transitions. [2020-10-20 01:44:29,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-20 01:44:29,013 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:29,013 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 01:44:29,013 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-20 01:44:29,013 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:29,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:29,014 INFO L82 PathProgramCache]: Analyzing trace with hash -474783860, now seen corresponding path program 1 times [2020-10-20 01:44:29,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:29,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834588607] [2020-10-20 01:44:29,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:29,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:29,083 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 01:44:29,084 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834588607] [2020-10-20 01:44:29,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:29,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:44:29,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556173447] [2020-10-20 01:44:29,085 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 01:44:29,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:29,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 01:44:29,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 01:44:29,086 INFO L87 Difference]: Start difference. First operand 155 states and 213 transitions. Second operand 4 states. [2020-10-20 01:44:29,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:29,233 INFO L93 Difference]: Finished difference Result 320 states and 447 transitions. [2020-10-20 01:44:29,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 01:44:29,233 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2020-10-20 01:44:29,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:29,235 INFO L225 Difference]: With dead ends: 320 [2020-10-20 01:44:29,235 INFO L226 Difference]: Without dead ends: 233 [2020-10-20 01:44:29,236 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 01:44:29,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2020-10-20 01:44:29,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 230. [2020-10-20 01:44:29,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-10-20 01:44:29,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 316 transitions. [2020-10-20 01:44:29,287 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 316 transitions. Word has length 34 [2020-10-20 01:44:29,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:29,289 INFO L481 AbstractCegarLoop]: Abstraction has 230 states and 316 transitions. [2020-10-20 01:44:29,290 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 01:44:29,290 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 316 transitions. [2020-10-20 01:44:29,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-20 01:44:29,297 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:29,298 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 01:44:29,298 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-20 01:44:29,298 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:29,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:29,299 INFO L82 PathProgramCache]: Analyzing trace with hash -1754647538, now seen corresponding path program 1 times [2020-10-20 01:44:29,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:29,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628791273] [2020-10-20 01:44:29,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:29,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:29,377 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 01:44:29,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628791273] [2020-10-20 01:44:29,378 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:29,378 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:44:29,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445486836] [2020-10-20 01:44:29,379 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 01:44:29,379 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:29,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 01:44:29,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 01:44:29,381 INFO L87 Difference]: Start difference. First operand 230 states and 316 transitions. Second operand 4 states. [2020-10-20 01:44:29,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:29,488 INFO L93 Difference]: Finished difference Result 679 states and 946 transitions. [2020-10-20 01:44:29,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 01:44:29,488 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2020-10-20 01:44:29,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:29,492 INFO L225 Difference]: With dead ends: 679 [2020-10-20 01:44:29,492 INFO L226 Difference]: Without dead ends: 516 [2020-10-20 01:44:29,493 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 01:44:29,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2020-10-20 01:44:29,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 230. [2020-10-20 01:44:29,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-10-20 01:44:29,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 314 transitions. [2020-10-20 01:44:29,519 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 314 transitions. Word has length 34 [2020-10-20 01:44:29,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:29,520 INFO L481 AbstractCegarLoop]: Abstraction has 230 states and 314 transitions. [2020-10-20 01:44:29,520 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 01:44:29,520 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 314 transitions. [2020-10-20 01:44:29,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-20 01:44:29,521 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:29,521 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 01:44:29,521 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-20 01:44:29,522 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:29,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:29,522 INFO L82 PathProgramCache]: Analyzing trace with hash 1953513744, now seen corresponding path program 1 times [2020-10-20 01:44:29,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:29,522 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689263207] [2020-10-20 01:44:29,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:29,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:29,590 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 01:44:29,590 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689263207] [2020-10-20 01:44:29,591 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:29,591 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:44:29,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120755252] [2020-10-20 01:44:29,591 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:44:29,592 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:29,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:44:29,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:44:29,592 INFO L87 Difference]: Start difference. First operand 230 states and 314 transitions. Second operand 5 states. [2020-10-20 01:44:29,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:29,809 INFO L93 Difference]: Finished difference Result 505 states and 699 transitions. [2020-10-20 01:44:29,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 01:44:29,810 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2020-10-20 01:44:29,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:29,812 INFO L225 Difference]: With dead ends: 505 [2020-10-20 01:44:29,813 INFO L226 Difference]: Without dead ends: 342 [2020-10-20 01:44:29,814 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 01:44:29,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2020-10-20 01:44:29,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 256. [2020-10-20 01:44:29,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2020-10-20 01:44:29,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 352 transitions. [2020-10-20 01:44:29,845 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 352 transitions. Word has length 34 [2020-10-20 01:44:29,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:29,846 INFO L481 AbstractCegarLoop]: Abstraction has 256 states and 352 transitions. [2020-10-20 01:44:29,846 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:44:29,847 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 352 transitions. [2020-10-20 01:44:29,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-20 01:44:29,848 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:29,848 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, 1] [2020-10-20 01:44:29,849 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-20 01:44:29,849 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:29,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:29,850 INFO L82 PathProgramCache]: Analyzing trace with hash 1310370263, now seen corresponding path program 1 times [2020-10-20 01:44:29,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:29,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523895995] [2020-10-20 01:44:29,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:29,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:29,909 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 01:44:29,910 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523895995] [2020-10-20 01:44:29,910 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:29,910 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:44:29,911 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122812175] [2020-10-20 01:44:29,911 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:44:29,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:29,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:44:29,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:44:29,912 INFO L87 Difference]: Start difference. First operand 256 states and 352 transitions. Second operand 5 states. [2020-10-20 01:44:30,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:30,036 INFO L93 Difference]: Finished difference Result 778 states and 1068 transitions. [2020-10-20 01:44:30,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 01:44:30,037 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 54 [2020-10-20 01:44:30,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:30,040 INFO L225 Difference]: With dead ends: 778 [2020-10-20 01:44:30,041 INFO L226 Difference]: Without dead ends: 528 [2020-10-20 01:44:30,042 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 01:44:30,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2020-10-20 01:44:30,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 265. [2020-10-20 01:44:30,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2020-10-20 01:44:30,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 361 transitions. [2020-10-20 01:44:30,076 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 361 transitions. Word has length 54 [2020-10-20 01:44:30,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:30,077 INFO L481 AbstractCegarLoop]: Abstraction has 265 states and 361 transitions. [2020-10-20 01:44:30,077 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:44:30,077 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 361 transitions. [2020-10-20 01:44:30,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-20 01:44:30,078 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:30,079 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, 1] [2020-10-20 01:44:30,079 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-20 01:44:30,079 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:30,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:30,080 INFO L82 PathProgramCache]: Analyzing trace with hash -933613035, now seen corresponding path program 1 times [2020-10-20 01:44:30,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:30,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568384596] [2020-10-20 01:44:30,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:30,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:30,129 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 01:44:30,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568384596] [2020-10-20 01:44:30,130 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:30,130 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:44:30,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215926612] [2020-10-20 01:44:30,131 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 01:44:30,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:30,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 01:44:30,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 01:44:30,132 INFO L87 Difference]: Start difference. First operand 265 states and 361 transitions. Second operand 4 states. [2020-10-20 01:44:30,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:30,214 INFO L93 Difference]: Finished difference Result 609 states and 830 transitions. [2020-10-20 01:44:30,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 01:44:30,215 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2020-10-20 01:44:30,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:30,217 INFO L225 Difference]: With dead ends: 609 [2020-10-20 01:44:30,218 INFO L226 Difference]: Without dead ends: 350 [2020-10-20 01:44:30,219 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 01:44:30,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2020-10-20 01:44:30,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 224. [2020-10-20 01:44:30,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-10-20 01:44:30,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 299 transitions. [2020-10-20 01:44:30,244 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 299 transitions. Word has length 54 [2020-10-20 01:44:30,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:30,244 INFO L481 AbstractCegarLoop]: Abstraction has 224 states and 299 transitions. [2020-10-20 01:44:30,244 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 01:44:30,245 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 299 transitions. [2020-10-20 01:44:30,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-20 01:44:30,245 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:30,246 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 01:44:30,246 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-20 01:44:30,246 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:30,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:30,247 INFO L82 PathProgramCache]: Analyzing trace with hash -1278005039, now seen corresponding path program 1 times [2020-10-20 01:44:30,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:30,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235425381] [2020-10-20 01:44:30,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:30,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:30,329 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 01:44:30,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235425381] [2020-10-20 01:44:30,330 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2040905401] [2020-10-20 01:44:30,330 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 01:44:30,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:30,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-20 01:44:30,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 01:44:30,548 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 01:44:30,549 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 01:44:30,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2020-10-20 01:44:30,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676258723] [2020-10-20 01:44:30,550 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 01:44:30,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:30,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 01:44:30,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-20 01:44:30,551 INFO L87 Difference]: Start difference. First operand 224 states and 299 transitions. Second operand 6 states. [2020-10-20 01:44:30,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:30,842 INFO L93 Difference]: Finished difference Result 636 states and 864 transitions. [2020-10-20 01:44:30,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-20 01:44:30,843 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 55 [2020-10-20 01:44:30,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:30,846 INFO L225 Difference]: With dead ends: 636 [2020-10-20 01:44:30,847 INFO L226 Difference]: Without dead ends: 466 [2020-10-20 01:44:30,848 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 01:44:30,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2020-10-20 01:44:30,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 272. [2020-10-20 01:44:30,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2020-10-20 01:44:30,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 363 transitions. [2020-10-20 01:44:30,886 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 363 transitions. Word has length 55 [2020-10-20 01:44:30,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:30,887 INFO L481 AbstractCegarLoop]: Abstraction has 272 states and 363 transitions. [2020-10-20 01:44:30,887 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 01:44:30,887 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 363 transitions. [2020-10-20 01:44:30,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-20 01:44:30,888 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:30,889 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 01:44:31,103 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-10-20 01:44:31,104 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:31,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:31,105 INFO L82 PathProgramCache]: Analyzing trace with hash -1984080976, now seen corresponding path program 2 times [2020-10-20 01:44:31,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:31,107 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213121479] [2020-10-20 01:44:31,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:31,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:31,284 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 01:44:31,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213121479] [2020-10-20 01:44:31,285 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:31,285 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:44:31,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136829996] [2020-10-20 01:44:31,287 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:44:31,288 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:31,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:44:31,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:44:31,291 INFO L87 Difference]: Start difference. First operand 272 states and 363 transitions. Second operand 5 states. [2020-10-20 01:44:31,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:31,637 INFO L93 Difference]: Finished difference Result 809 states and 1095 transitions. [2020-10-20 01:44:31,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 01:44:31,638 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 76 [2020-10-20 01:44:31,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:31,642 INFO L225 Difference]: With dead ends: 809 [2020-10-20 01:44:31,642 INFO L226 Difference]: Without dead ends: 584 [2020-10-20 01:44:31,643 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-10-20 01:44:31,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2020-10-20 01:44:31,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 376. [2020-10-20 01:44:31,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2020-10-20 01:44:31,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 501 transitions. [2020-10-20 01:44:31,702 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 501 transitions. Word has length 76 [2020-10-20 01:44:31,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:31,703 INFO L481 AbstractCegarLoop]: Abstraction has 376 states and 501 transitions. [2020-10-20 01:44:31,703 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:44:31,703 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 501 transitions. [2020-10-20 01:44:31,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-20 01:44:31,704 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:31,705 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 01:44:31,705 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-20 01:44:31,705 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:31,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:31,706 INFO L82 PathProgramCache]: Analyzing trace with hash -1709321362, now seen corresponding path program 1 times [2020-10-20 01:44:31,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:31,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19711407] [2020-10-20 01:44:31,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:31,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:31,780 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 01:44:31,781 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19711407] [2020-10-20 01:44:31,781 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:31,781 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-20 01:44:31,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554508138] [2020-10-20 01:44:31,782 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 01:44:31,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:31,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 01:44:31,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-20 01:44:31,783 INFO L87 Difference]: Start difference. First operand 376 states and 501 transitions. Second operand 7 states. [2020-10-20 01:44:31,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:31,933 INFO L93 Difference]: Finished difference Result 780 states and 1040 transitions. [2020-10-20 01:44:31,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-20 01:44:31,934 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 76 [2020-10-20 01:44:31,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:31,934 INFO L225 Difference]: With dead ends: 780 [2020-10-20 01:44:31,934 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 01:44:31,936 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-10-20 01:44:31,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 01:44:31,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 01:44:31,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 01:44:31,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 01:44:31,938 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 76 [2020-10-20 01:44:31,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:31,938 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 01:44:31,938 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 01:44:31,939 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 01:44:31,939 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 01:44:31,939 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-20 01:44:31,941 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-20 01:44:32,306 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 168 [2020-10-20 01:44:32,819 WARN L193 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 184 [2020-10-20 01:44:33,562 WARN L193 SmtUtils]: Spent 521.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 186 [2020-10-20 01:44:33,864 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 152 [2020-10-20 01:44:34,039 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 102 [2020-10-20 01:44:34,510 WARN L193 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 186 [2020-10-20 01:44:34,892 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 169 [2020-10-20 01:44:35,254 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 181 [2020-10-20 01:44:35,980 WARN L193 SmtUtils]: Spent 713.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 38 [2020-10-20 01:44:36,944 WARN L193 SmtUtils]: Spent 948.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 26 [2020-10-20 01:44:37,252 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 34 [2020-10-20 01:44:37,490 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 28 [2020-10-20 01:44:37,632 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 26 [2020-10-20 01:44:38,615 WARN L193 SmtUtils]: Spent 979.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 32 [2020-10-20 01:44:39,217 WARN L193 SmtUtils]: Spent 598.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 30 [2020-10-20 01:44:39,566 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 20 [2020-10-20 01:44:40,592 WARN L193 SmtUtils]: Spent 912.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 32 [2020-10-20 01:44:41,412 WARN L193 SmtUtils]: Spent 708.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 31 [2020-10-20 01:44:41,538 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 18 [2020-10-20 01:44:42,353 WARN L193 SmtUtils]: Spent 812.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 27 [2020-10-20 01:44:42,358 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 01:44:42,358 INFO L270 CegarLoopResult]: At program point L399(lines 384 402) the Hoare annotation is: (and (not (= |ULTIMATE.start_isLowWaterLevel_#res| 0)) (= ULTIMATE.start_isLowWaterLevel_~tmp~6 0) (not (= ULTIMATE.start_isLowWaterLevel_~tmp___0~3 0)) (not (= 0 ~systemActive~0)) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0) (= ULTIMATE.start_main_~tmp~7 1) (= |ULTIMATE.start_valid_product_#res| 1)) [2020-10-20 01:44:42,358 INFO L270 CegarLoopResult]: At program point L399-1(lines 384 402) the Hoare annotation is: false [2020-10-20 01:44:42,358 INFO L270 CegarLoopResult]: At program point L399-2(lines 384 402) the Hoare annotation is: false [2020-10-20 01:44:42,359 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-20 01:44:42,359 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-20 01:44:42,359 INFO L274 CegarLoopResult]: For program point L3-2(line 3) no Hoare annotation was computed. [2020-10-20 01:44:42,359 INFO L274 CegarLoopResult]: For program point L598(lines 598 604) no Hoare annotation was computed. [2020-10-20 01:44:42,359 INFO L274 CegarLoopResult]: For program point L598-1(lines 598 604) no Hoare annotation was computed. [2020-10-20 01:44:42,359 INFO L274 CegarLoopResult]: For program point L598-2(lines 598 604) no Hoare annotation was computed. [2020-10-20 01:44:42,360 INFO L274 CegarLoopResult]: For program point L598-3(lines 598 604) no Hoare annotation was computed. [2020-10-20 01:44:42,360 INFO L274 CegarLoopResult]: For program point L598-4(lines 598 604) no Hoare annotation was computed. [2020-10-20 01:44:42,360 INFO L274 CegarLoopResult]: For program point L598-5(lines 598 604) no Hoare annotation was computed. [2020-10-20 01:44:42,360 INFO L274 CegarLoopResult]: For program point L533(lines 533 537) no Hoare annotation was computed. [2020-10-20 01:44:42,360 INFO L274 CegarLoopResult]: For program point L434(lines 434 438) no Hoare annotation was computed. [2020-10-20 01:44:42,361 INFO L274 CegarLoopResult]: For program point L434-1(lines 196 202) no Hoare annotation was computed. [2020-10-20 01:44:42,361 INFO L270 CegarLoopResult]: At program point L203(lines 203 209) the Hoare annotation is: (let ((.cse0 (<= 2 ~waterLevel~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (= ULTIMATE.start_main_~tmp~7 1)) (.cse4 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (not (= 0 ~systemActive~0)) .cse0 .cse2 (= ULTIMATE.start_isHighWaterLevel_~tmp~5 0) .cse3 .cse4) (and (= ~waterLevel~0 1) .cse1 .cse2 .cse3 .cse4))) [2020-10-20 01:44:42,361 INFO L270 CegarLoopResult]: At program point L203-1(lines 203 209) the Hoare annotation is: false [2020-10-20 01:44:42,361 INFO L270 CegarLoopResult]: At program point L203-2(lines 203 209) the Hoare annotation is: false [2020-10-20 01:44:42,361 INFO L274 CegarLoopResult]: For program point L501(lines 501 508) no Hoare annotation was computed. [2020-10-20 01:44:42,361 INFO L277 CegarLoopResult]: At program point L501-1(lines 501 508) the Hoare annotation is: true [2020-10-20 01:44:42,362 INFO L270 CegarLoopResult]: At program point L172(lines 123 173) the Hoare annotation is: false [2020-10-20 01:44:42,362 INFO L270 CegarLoopResult]: At program point L603(lines 594 607) the Hoare annotation is: false [2020-10-20 01:44:42,362 INFO L270 CegarLoopResult]: At program point L603-1(lines 594 607) the Hoare annotation is: (let ((.cse0 (not (= 0 ~systemActive~0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (= ULTIMATE.start_main_~tmp~7 1)) (.cse4 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) .cse3 (= |ULTIMATE.start_isHighWaterSensorDry_#res| 1) .cse4))) [2020-10-20 01:44:42,362 INFO L270 CegarLoopResult]: At program point L603-2(lines 594 607) the Hoare annotation is: false [2020-10-20 01:44:42,362 INFO L270 CegarLoopResult]: At program point L603-3(lines 594 607) the Hoare annotation is: false [2020-10-20 01:44:42,362 INFO L270 CegarLoopResult]: At program point L603-4(lines 594 607) the Hoare annotation is: false [2020-10-20 01:44:42,362 INFO L270 CegarLoopResult]: At program point L603-5(lines 594 607) the Hoare annotation is: false [2020-10-20 01:44:42,362 INFO L270 CegarLoopResult]: At program point L75(lines 70 78) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res| 1)) [2020-10-20 01:44:42,363 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 01:44:42,363 INFO L274 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-10-20 01:44:42,363 INFO L270 CegarLoopResult]: At program point L407-1(lines 407 413) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_main_~tmp~7 1)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1 .cse2 .cse3) (and (= ~waterLevel~0 1) .cse0 .cse2 .cse1 .cse3))) [2020-10-20 01:44:42,363 INFO L274 CegarLoopResult]: For program point L374(lines 374 378) no Hoare annotation was computed. [2020-10-20 01:44:42,363 INFO L274 CegarLoopResult]: For program point L374-2(lines 374 378) no Hoare annotation was computed. [2020-10-20 01:44:42,363 INFO L274 CegarLoopResult]: For program point L374-3(lines 374 378) no Hoare annotation was computed. [2020-10-20 01:44:42,363 INFO L274 CegarLoopResult]: For program point L374-5(lines 374 378) no Hoare annotation was computed. [2020-10-20 01:44:42,363 INFO L274 CegarLoopResult]: For program point L374-6(lines 374 378) no Hoare annotation was computed. [2020-10-20 01:44:42,364 INFO L274 CegarLoopResult]: For program point L374-8(lines 374 378) no Hoare annotation was computed. [2020-10-20 01:44:42,364 INFO L274 CegarLoopResult]: For program point L374-9(lines 374 378) no Hoare annotation was computed. [2020-10-20 01:44:42,364 INFO L274 CegarLoopResult]: For program point L374-11(lines 374 378) no Hoare annotation was computed. [2020-10-20 01:44:42,364 INFO L274 CegarLoopResult]: For program point L374-12(lines 374 378) no Hoare annotation was computed. [2020-10-20 01:44:42,364 INFO L274 CegarLoopResult]: For program point L374-14(lines 374 378) no Hoare annotation was computed. [2020-10-20 01:44:42,364 INFO L274 CegarLoopResult]: For program point L374-15(lines 374 378) no Hoare annotation was computed. [2020-10-20 01:44:42,364 INFO L274 CegarLoopResult]: For program point L374-17(lines 374 378) no Hoare annotation was computed. [2020-10-20 01:44:42,364 INFO L274 CegarLoopResult]: For program point L144(lines 144 150) no Hoare annotation was computed. [2020-10-20 01:44:42,364 INFO L270 CegarLoopResult]: At program point L144-1(lines 144 150) the Hoare annotation is: (let ((.cse0 (<= 2 ~waterLevel~0)) (.cse5 (not (= 0 ~systemActive~0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse6 (<= 1 ~waterLevel~0)) (.cse3 (= ULTIMATE.start_main_~tmp~7 1)) (.cse4 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse0 .cse3 .cse2 .cse4) (and (<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~0) .cse1 .cse2 .cse6 .cse3 (<= 1 |ULTIMATE.start_getWaterLevel_#res|) .cse4) (and .cse5 .cse1 .cse2 .cse6 .cse3 .cse4))) [2020-10-20 01:44:42,364 INFO L277 CegarLoopResult]: At program point L510(lines 491 513) the Hoare annotation is: true [2020-10-20 01:44:42,365 INFO L270 CegarLoopResult]: At program point L478(lines 474 480) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~pumpRunning~0 0) (= ULTIMATE.start_main_~tmp~7 ~systemActive~0) (= ULTIMATE.start_main_~tmp~7 1) (= |ULTIMATE.start_valid_product_#res| 1)) [2020-10-20 01:44:42,365 INFO L274 CegarLoopResult]: For program point L545(lines 545 549) no Hoare annotation was computed. [2020-10-20 01:44:42,365 INFO L270 CegarLoopResult]: At program point L380(lines 365 383) the Hoare annotation is: false [2020-10-20 01:44:42,365 INFO L270 CegarLoopResult]: At program point L380-1(lines 365 383) the Hoare annotation is: (let ((.cse0 (not (= 0 ~systemActive~0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (= ULTIMATE.start_main_~tmp~7 1)) (.cse4 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and (= ULTIMATE.start_isHighWaterLevel_~tmp~5 1) (= ULTIMATE.start_isHighWaterLevel_~tmp___0~2 0) .cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| 0) .cse1 .cse2 (<= 1 ~waterLevel~0) .cse3 (= |ULTIMATE.start_isHighWaterSensorDry_#res| 1) .cse4) (and (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 (= ULTIMATE.start_isHighWaterLevel_~tmp~5 0) .cse3 .cse4))) [2020-10-20 01:44:42,365 INFO L270 CegarLoopResult]: At program point L380-2(lines 365 383) the Hoare annotation is: false [2020-10-20 01:44:42,365 INFO L270 CegarLoopResult]: At program point L380-3(lines 365 383) the Hoare annotation is: false [2020-10-20 01:44:42,365 INFO L270 CegarLoopResult]: At program point L380-4(lines 365 383) the Hoare annotation is: false [2020-10-20 01:44:42,365 INFO L270 CegarLoopResult]: At program point L380-5(lines 365 383) the Hoare annotation is: false [2020-10-20 01:44:42,366 INFO L270 CegarLoopResult]: At program point L613(lines 608 616) the Hoare annotation is: (and (not (= 0 ~systemActive~0)) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0) (= ULTIMATE.start_main_~tmp~7 1) (= |ULTIMATE.start_valid_product_#res| 1)) [2020-10-20 01:44:42,366 INFO L270 CegarLoopResult]: At program point L613-1(lines 608 616) the Hoare annotation is: false [2020-10-20 01:44:42,366 INFO L270 CegarLoopResult]: At program point L613-2(lines 608 616) the Hoare annotation is: false [2020-10-20 01:44:42,366 INFO L270 CegarLoopResult]: At program point L316(lines 309 319) the Hoare annotation is: false [2020-10-20 01:44:42,366 INFO L270 CegarLoopResult]: At program point L316-1(lines 309 319) the Hoare annotation is: (and (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (not (= 0 ~systemActive~0)) (<= 2 ~waterLevel~0) (= ~pumpRunning~0 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (= ULTIMATE.start_isHighWaterLevel_~tmp~5 0) (= ULTIMATE.start_main_~tmp~7 1) (= |ULTIMATE.start_valid_product_#res| 1)) [2020-10-20 01:44:42,366 INFO L270 CegarLoopResult]: At program point L316-2(lines 309 319) the Hoare annotation is: false [2020-10-20 01:44:42,366 INFO L270 CegarLoopResult]: At program point L316-3(lines 309 319) the Hoare annotation is: false [2020-10-20 01:44:42,366 INFO L270 CegarLoopResult]: At program point L316-4(lines 309 319) the Hoare annotation is: false [2020-10-20 01:44:42,367 INFO L270 CegarLoopResult]: At program point L316-5(lines 309 319) the Hoare annotation is: false [2020-10-20 01:44:42,367 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 01:44:42,367 INFO L274 CegarLoopResult]: For program point L154(lines 154 167) no Hoare annotation was computed. [2020-10-20 01:44:42,367 INFO L274 CegarLoopResult]: For program point L254(lines 254 271) no Hoare annotation was computed. [2020-10-20 01:44:42,367 INFO L274 CegarLoopResult]: For program point L254-1(lines 254 271) no Hoare annotation was computed. [2020-10-20 01:44:42,367 INFO L274 CegarLoopResult]: For program point L254-2(lines 254 271) no Hoare annotation was computed. [2020-10-20 01:44:42,367 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 01:44:42,367 INFO L274 CegarLoopResult]: For program point L91(lines 91 104) no Hoare annotation was computed. [2020-10-20 01:44:42,368 INFO L270 CegarLoopResult]: At program point L91-1(lines 1 991) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse4 (not (= 0 ~systemActive~0))) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (= ULTIMATE.start_main_~tmp~7 1)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and (<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~0) .cse0 .cse1 (<= 1 ~waterLevel~0) .cse2 (<= 1 |ULTIMATE.start_getWaterLevel_#res|) .cse3) (and (= ~waterLevel~0 1) .cse4 .cse0 .cse1 .cse2 .cse3) (and (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (<= 2 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~0) .cse4 (<= 2 ~waterLevel~0) (<= 2 |ULTIMATE.start_getWaterLevel_#res|) .cse1 (= ULTIMATE.start_isHighWaterLevel_~tmp~5 0) .cse2 .cse3))) [2020-10-20 01:44:42,368 INFO L274 CegarLoopResult]: For program point L91-2(lines 91 104) no Hoare annotation was computed. [2020-10-20 01:44:42,368 INFO L270 CegarLoopResult]: At program point L91-3(lines 1 991) the Hoare annotation is: false [2020-10-20 01:44:42,368 INFO L274 CegarLoopResult]: For program point L91-4(lines 91 104) no Hoare annotation was computed. [2020-10-20 01:44:42,368 INFO L270 CegarLoopResult]: At program point L91-5(lines 1 991) the Hoare annotation is: false [2020-10-20 01:44:42,368 INFO L274 CegarLoopResult]: For program point L521(lines 521 525) no Hoare annotation was computed. [2020-10-20 01:44:42,368 INFO L274 CegarLoopResult]: For program point L521-3(lines 521 525) no Hoare annotation was computed. [2020-10-20 01:44:42,368 INFO L274 CegarLoopResult]: For program point L521-6(lines 521 525) no Hoare annotation was computed. [2020-10-20 01:44:42,368 INFO L274 CegarLoopResult]: For program point L125(lines 124 171) no Hoare annotation was computed. [2020-10-20 01:44:42,369 INFO L274 CegarLoopResult]: For program point L291(lines 291 297) no Hoare annotation was computed. [2020-10-20 01:44:42,369 INFO L274 CegarLoopResult]: For program point L258(lines 258 266) no Hoare annotation was computed. [2020-10-20 01:44:42,369 INFO L274 CegarLoopResult]: For program point L291-2(lines 291 297) no Hoare annotation was computed. [2020-10-20 01:44:42,369 INFO L274 CegarLoopResult]: For program point L258-1(lines 258 266) no Hoare annotation was computed. [2020-10-20 01:44:42,369 INFO L274 CegarLoopResult]: For program point L258-2(lines 258 266) no Hoare annotation was computed. [2020-10-20 01:44:42,369 INFO L274 CegarLoopResult]: For program point L291-4(lines 291 297) no Hoare annotation was computed. [2020-10-20 01:44:42,369 INFO L274 CegarLoopResult]: For program point L126(lines 126 130) no Hoare annotation was computed. [2020-10-20 01:44:42,369 INFO L274 CegarLoopResult]: For program point L291-6(lines 291 297) no Hoare annotation was computed. [2020-10-20 01:44:42,369 INFO L274 CegarLoopResult]: For program point L291-8(lines 291 297) no Hoare annotation was computed. [2020-10-20 01:44:42,369 INFO L274 CegarLoopResult]: For program point L291-10(lines 291 297) no Hoare annotation was computed. [2020-10-20 01:44:42,370 INFO L274 CegarLoopResult]: For program point L622(line 622) no Hoare annotation was computed. [2020-10-20 01:44:42,370 INFO L274 CegarLoopResult]: For program point L622-1(line 622) no Hoare annotation was computed. [2020-10-20 01:44:42,370 INFO L274 CegarLoopResult]: For program point L622-2(line 622) no Hoare annotation was computed. [2020-10-20 01:44:42,370 INFO L270 CegarLoopResult]: At program point L325(lines 320 328) the Hoare annotation is: false [2020-10-20 01:44:42,370 INFO L270 CegarLoopResult]: At program point L325-1(lines 320 328) the Hoare annotation is: false [2020-10-20 01:44:42,370 INFO L270 CegarLoopResult]: At program point L325-2(lines 320 328) the Hoare annotation is: false [2020-10-20 01:44:42,370 INFO L274 CegarLoopResult]: For program point L160(lines 160 166) no Hoare annotation was computed. [2020-10-20 01:44:42,370 INFO L270 CegarLoopResult]: At program point L160-1(lines 196 202) the Hoare annotation is: (let ((.cse0 (<= 2 ~waterLevel~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (= ULTIMATE.start_main_~tmp~7 1)) (.cse4 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and (not (= 0 ~systemActive~0)) .cse0 .cse2 .cse3 .cse4) (and (= ~waterLevel~0 1) .cse1 .cse2 .cse3 .cse4))) [2020-10-20 01:44:42,371 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 01:44:42,371 INFO L270 CegarLoopResult]: At program point L590(lines 585 593) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ULTIMATE.start_main_~tmp~7 1)) (.cse2 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (not (= 0 ~systemActive~0)) (<= 2 ~waterLevel~0) (<= 2 |ULTIMATE.start_getWaterLevel_#res|) .cse0 (= ULTIMATE.start_isHighWaterLevel_~tmp~5 0) .cse1 .cse2) (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= 1 ~waterLevel~0) .cse2 (<= 1 |ULTIMATE.start_getWaterLevel_#res|)))) [2020-10-20 01:44:42,371 INFO L270 CegarLoopResult]: At program point L590-1(lines 585 593) the Hoare annotation is: false [2020-10-20 01:44:42,371 INFO L270 CegarLoopResult]: At program point L590-2(lines 585 593) the Hoare annotation is: false [2020-10-20 01:44:42,371 INFO L274 CegarLoopResult]: For program point L95(lines 95 101) no Hoare annotation was computed. [2020-10-20 01:44:42,371 INFO L274 CegarLoopResult]: For program point L95-2(lines 95 101) no Hoare annotation was computed. [2020-10-20 01:44:42,371 INFO L274 CegarLoopResult]: For program point L95-4(lines 95 101) no Hoare annotation was computed. [2020-10-20 01:44:42,371 INFO L270 CegarLoopResult]: At program point L558(lines 553 561) the Hoare annotation is: false [2020-10-20 01:44:42,372 INFO L270 CegarLoopResult]: At program point L558-1(lines 553 561) the Hoare annotation is: (and (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (not (= 0 ~systemActive~0)) (<= 2 ~waterLevel~0) (= ~pumpRunning~0 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (= ULTIMATE.start_isHighWaterLevel_~tmp~5 0) (= ULTIMATE.start_main_~tmp~7 1) (= |ULTIMATE.start_valid_product_#res| 1)) [2020-10-20 01:44:42,372 INFO L270 CegarLoopResult]: At program point L558-2(lines 553 561) the Hoare annotation is: false [2020-10-20 01:44:42,372 INFO L270 CegarLoopResult]: At program point L558-3(lines 553 561) the Hoare annotation is: false [2020-10-20 01:44:42,372 INFO L270 CegarLoopResult]: At program point L558-4(lines 553 561) the Hoare annotation is: false [2020-10-20 01:44:42,372 INFO L274 CegarLoopResult]: For program point L393(lines 393 397) no Hoare annotation was computed. [2020-10-20 01:44:42,372 INFO L270 CegarLoopResult]: At program point L558-5(lines 553 561) the Hoare annotation is: false [2020-10-20 01:44:42,372 INFO L274 CegarLoopResult]: For program point L393-2(lines 393 397) no Hoare annotation was computed. [2020-10-20 01:44:42,372 INFO L274 CegarLoopResult]: For program point L393-3(lines 393 397) no Hoare annotation was computed. [2020-10-20 01:44:42,372 INFO L274 CegarLoopResult]: For program point L228(lines 228 245) no Hoare annotation was computed. [2020-10-20 01:44:42,372 INFO L274 CegarLoopResult]: For program point L393-5(lines 393 397) no Hoare annotation was computed. [2020-10-20 01:44:42,373 INFO L274 CegarLoopResult]: For program point L228-1(lines 228 245) no Hoare annotation was computed. [2020-10-20 01:44:42,373 INFO L274 CegarLoopResult]: For program point L393-6(lines 393 397) no Hoare annotation was computed. [2020-10-20 01:44:42,373 INFO L274 CegarLoopResult]: For program point L228-2(lines 228 245) no Hoare annotation was computed. [2020-10-20 01:44:42,373 INFO L274 CegarLoopResult]: For program point L228-3(lines 228 245) no Hoare annotation was computed. [2020-10-20 01:44:42,373 INFO L274 CegarLoopResult]: For program point L393-8(lines 393 397) no Hoare annotation was computed. [2020-10-20 01:44:42,373 INFO L274 CegarLoopResult]: For program point L228-4(lines 228 245) no Hoare annotation was computed. [2020-10-20 01:44:42,373 INFO L274 CegarLoopResult]: For program point L228-5(lines 228 245) no Hoare annotation was computed. [2020-10-20 01:44:42,373 INFO L270 CegarLoopResult]: At program point L196(lines 195 214) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_main_~tmp~7 1)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1 .cse2 .cse3) (and (= ~waterLevel~0 1) .cse0 .cse1 .cse2 .cse3) (and (not (= 0 ~systemActive~0)) .cse2 .cse1 (<= 1 ~waterLevel~0) .cse3))) [2020-10-20 01:44:42,373 INFO L274 CegarLoopResult]: For program point L196-1(lines 196 202) no Hoare annotation was computed. [2020-10-20 01:44:42,374 INFO L270 CegarLoopResult]: At program point L196-2(lines 195 214) the Hoare annotation is: false [2020-10-20 01:44:42,374 INFO L270 CegarLoopResult]: At program point L196-3(lines 195 214) the Hoare annotation is: false [2020-10-20 01:44:42,374 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-20 01:44:42,374 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 01:44:42,374 INFO L270 CegarLoopResult]: At program point L430-2(lines 430 444) the Hoare annotation is: false [2020-10-20 01:44:42,374 INFO L274 CegarLoopResult]: For program point L232(lines 232 240) no Hoare annotation was computed. [2020-10-20 01:44:42,374 INFO L274 CegarLoopResult]: For program point L232-1(lines 232 240) no Hoare annotation was computed. [2020-10-20 01:44:42,374 INFO L274 CegarLoopResult]: For program point L232-2(lines 232 240) no Hoare annotation was computed. [2020-10-20 01:44:42,375 INFO L274 CegarLoopResult]: For program point L232-3(lines 232 240) no Hoare annotation was computed. [2020-10-20 01:44:42,375 INFO L274 CegarLoopResult]: For program point L232-4(lines 232 240) no Hoare annotation was computed. [2020-10-20 01:44:42,375 INFO L270 CegarLoopResult]: At program point L67(lines 1 991) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-10-20 01:44:42,375 INFO L274 CegarLoopResult]: For program point L232-5(lines 232 240) no Hoare annotation was computed. [2020-10-20 01:44:42,375 INFO L274 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-10-20 01:44:42,375 INFO L274 CegarLoopResult]: For program point L134(lines 134 140) no Hoare annotation was computed. [2020-10-20 01:44:42,375 INFO L270 CegarLoopResult]: At program point L134-1(lines 134 140) the Hoare annotation is: (let ((.cse0 (<= 2 ~waterLevel~0)) (.cse5 (not (= 0 ~systemActive~0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse6 (<= 1 ~waterLevel~0)) (.cse3 (= ULTIMATE.start_main_~tmp~7 1)) (.cse4 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse0 .cse3 .cse2 .cse4) (and (<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~0) .cse1 .cse2 .cse6 .cse3 (<= 1 |ULTIMATE.start_getWaterLevel_#res|) .cse4) (and .cse5 .cse1 .cse2 .cse6 .cse3 .cse4))) [2020-10-20 01:44:42,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 01:44:42 BoogieIcfgContainer [2020-10-20 01:44:42,408 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 01:44:42,408 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 01:44:42,408 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 01:44:42,409 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 01:44:42,409 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:44:27" (3/4) ... [2020-10-20 01:44:42,413 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 01:44:42,438 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2020-10-20 01:44:42,440 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-10-20 01:44:42,441 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-10-20 01:44:42,442 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-10-20 01:44:42,443 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-20 01:44:42,445 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 01:44:42,446 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 01:44:42,478 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && \result == 1 [2020-10-20 01:44:42,478 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((waterLevel == 1 && pumpRunning == 0) && tmp == systemActive) && tmp == 1) && \result == 1 [2020-10-20 01:44:42,479 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((1 <= tmp && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == 1) && 1 <= \result) && \result == 1) || (((((waterLevel == 1 && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) && tmp == 1) && \result == 1)) || ((((((((\result == 0 && 2 <= tmp) && !(0 == systemActive)) && 2 <= waterLevel) && 2 <= \result) && splverifierCounter == 0) && tmp == 0) && tmp == 1) && \result == 1) [2020-10-20 01:44:42,479 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) && tmp == 1) && \result == 1) || ((((!(0 == systemActive) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && \result == 1)) || ((((((1 <= tmp && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == 1) && 1 <= \result) && \result == 1)) || (((((!(0 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == 1) && \result == 1) [2020-10-20 01:44:42,480 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) && tmp == 1) && \result == 1) || ((((!(0 == systemActive) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && \result == 1)) || ((((((1 <= tmp && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == 1) && 1 <= \result) && \result == 1)) || (((((!(0 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == 1) && \result == 1) [2020-10-20 01:44:42,480 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) && tmp == 1) && \result == 1) || ((((!(0 == systemActive) && 2 <= waterLevel) && splverifierCounter == 0) && tmp == 1) && \result == 1)) || ((((waterLevel == 1 && pumpRunning == 0) && splverifierCounter == 0) && tmp == 1) && \result == 1) [2020-10-20 01:44:42,480 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) && tmp == 1) && \result == 1) || ((((waterLevel == 1 && pumpRunning == 0) && splverifierCounter == 0) && tmp == 1) && \result == 1)) || ((((!(0 == systemActive) && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) [2020-10-20 01:44:42,481 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) && tmp == 1) && \result == 1) || ((((((\result == 0 && !(0 == systemActive)) && 2 <= waterLevel) && splverifierCounter == 0) && tmp == 0) && tmp == 1) && \result == 1)) || ((((waterLevel == 1 && pumpRunning == 0) && splverifierCounter == 0) && tmp == 1) && \result == 1) [2020-10-20 01:44:42,481 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) && tmp == 1) && \result == 1) || ((((waterLevel == 1 && pumpRunning == 0) && tmp == 1) && splverifierCounter == 0) && \result == 1) [2020-10-20 01:44:42,482 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((\result == 0 && !(0 == systemActive)) && 2 <= waterLevel) && 2 <= \result) && splverifierCounter == 0) && tmp == 0) && tmp == 1) && \result == 1) || (((((pumpRunning == 0 && splverifierCounter == 0) && tmp == 1) && 1 <= waterLevel) && \result == 1) && 1 <= \result) [2020-10-20 01:44:42,483 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(0 == systemActive) && \result == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == 1) && \result == 1 [2020-10-20 01:44:42,484 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\result == 0 && !(0 == systemActive)) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && tmp == 1) && \result == 1) || ((((((!(0 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == 1) && \result == 1) && \result == 1) [2020-10-20 01:44:42,486 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\result == 0) && tmp == 0) && !(tmp___0 == 0)) && !(0 == systemActive)) && \result == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == 1) && \result == 1 [2020-10-20 01:44:42,492 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((tmp == 1 && tmp___0 == 0) && !(0 == systemActive)) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == 1) && \result == 1) && \result == 1) || (((((((\result == 0 && !(0 == systemActive)) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && tmp == 0) && tmp == 1) && \result == 1) [2020-10-20 01:44:42,494 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\result == 0 && !(0 == systemActive)) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && tmp == 0) && tmp == 1) && \result == 1 [2020-10-20 01:44:42,495 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\result == 0 && !(0 == systemActive)) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && tmp == 0) && tmp == 1) && \result == 1 [2020-10-20 01:44:42,631 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 01:44:42,631 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 01:44:42,632 INFO L168 Benchmark]: Toolchain (without parser) took 17739.10 ms. Allocated memory was 36.2 MB in the beginning and 149.4 MB in the end (delta: 113.2 MB). Free memory was 13.2 MB in the beginning and 123.1 MB in the end (delta: -110.0 MB). Peak memory consumption was 112.6 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:42,633 INFO L168 Benchmark]: CDTParser took 0.85 ms. Allocated memory is still 34.1 MB. Free memory was 19.6 MB in the beginning and 19.6 MB in the end (delta: 31.7 kB). Peak memory consumption was 31.7 kB. Max. memory is 14.3 GB. [2020-10-20 01:44:42,633 INFO L168 Benchmark]: CACSL2BoogieTranslator took 739.65 ms. Allocated memory was 36.2 MB in the beginning and 47.7 MB in the end (delta: 11.5 MB). Free memory was 12.4 MB in the beginning and 25.8 MB in the end (delta: -13.4 MB). Peak memory consumption was 12.0 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:42,633 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.42 ms. Allocated memory is still 47.7 MB. Free memory was 25.8 MB in the beginning and 21.4 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:42,634 INFO L168 Benchmark]: Boogie Preprocessor took 53.97 ms. Allocated memory is still 47.7 MB. Free memory was 21.4 MB in the beginning and 18.1 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:42,634 INFO L168 Benchmark]: RCFGBuilder took 1311.59 ms. Allocated memory was 47.7 MB in the beginning and 54.0 MB in the end (delta: 6.3 MB). Free memory was 18.1 MB in the beginning and 23.9 MB in the end (delta: -5.8 MB). Peak memory consumption was 10.4 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:42,634 INFO L168 Benchmark]: TraceAbstraction took 15321.64 ms. Allocated memory was 54.0 MB in the beginning and 149.4 MB in the end (delta: 95.4 MB). Free memory was 23.5 MB in the beginning and 25.6 MB in the end (delta: -2.1 MB). Peak memory consumption was 107.0 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:42,635 INFO L168 Benchmark]: Witness Printer took 222.47 ms. Allocated memory is still 149.4 MB. Free memory was 25.6 MB in the beginning and 123.1 MB in the end (delta: -97.5 MB). Peak memory consumption was 11.8 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:42,640 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.85 ms. Allocated memory is still 34.1 MB. Free memory was 19.6 MB in the beginning and 19.6 MB in the end (delta: 31.7 kB). Peak memory consumption was 31.7 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 739.65 ms. Allocated memory was 36.2 MB in the beginning and 47.7 MB in the end (delta: 11.5 MB). Free memory was 12.4 MB in the beginning and 25.8 MB in the end (delta: -13.4 MB). Peak memory consumption was 12.0 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 79.42 ms. Allocated memory is still 47.7 MB. Free memory was 25.8 MB in the beginning and 21.4 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 53.97 ms. Allocated memory is still 47.7 MB. Free memory was 21.4 MB in the beginning and 18.1 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 14.3 GB. * RCFGBuilder took 1311.59 ms. Allocated memory was 47.7 MB in the beginning and 54.0 MB in the end (delta: 6.3 MB). Free memory was 18.1 MB in the beginning and 23.9 MB in the end (delta: -5.8 MB). Peak memory consumption was 10.4 MB. Max. memory is 14.3 GB. * TraceAbstraction took 15321.64 ms. Allocated memory was 54.0 MB in the beginning and 149.4 MB in the end (delta: 95.4 MB). Free memory was 23.5 MB in the beginning and 25.6 MB in the end (delta: -2.1 MB). Peak memory consumption was 107.0 MB. Max. memory is 14.3 GB. * Witness Printer took 222.47 ms. Allocated memory is still 149.4 MB. Free memory was 25.6 MB in the beginning and 123.1 MB in the end (delta: -97.5 MB). Peak memory consumption was 11.8 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: 320]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 365]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 594]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((((((1 <= tmp && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == 1) && 1 <= \result) && \result == 1) || (((((waterLevel == 1 && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) && tmp == 1) && \result == 1)) || ((((((((\result == 0 && 2 <= tmp) && !(0 == systemActive)) && 2 <= waterLevel) && 2 <= \result) && splverifierCounter == 0) && tmp == 0) && tmp == 1) && \result == 1) - InvariantResult [Line: 320]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 594]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 365]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 365]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 594]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 594]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 501]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 196]: Loop Invariant Derived loop invariant: (((((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) && tmp == 1) && \result == 1) || ((((!(0 == systemActive) && 2 <= waterLevel) && splverifierCounter == 0) && tmp == 1) && \result == 1)) || ((((waterLevel == 1 && pumpRunning == 0) && splverifierCounter == 0) && tmp == 1) && \result == 1) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 365]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 365]: Loop Invariant Derived loop invariant: (((((((((tmp == 1 && tmp___0 == 0) && !(0 == systemActive)) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == 1) && \result == 1) && \result == 1) || (((((((\result == 0 && !(0 == systemActive)) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && tmp == 0) && tmp == 1) && \result == 1) - InvariantResult [Line: 594]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 320]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 594]: Loop Invariant Derived loop invariant: ((((((\result == 0 && !(0 == systemActive)) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && tmp == 1) && \result == 1) || ((((((!(0 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == 1) && \result == 1) && \result == 1) - InvariantResult [Line: 365]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 384]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 384]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 123]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 384]: Loop Invariant Derived loop invariant: (((((((!(\result == 0) && tmp == 0) && !(tmp___0 == 0)) && !(0 == systemActive)) && \result == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == 1) && \result == 1 - InvariantResult [Line: 144]: Loop Invariant Derived loop invariant: ((((((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) && tmp == 1) && \result == 1) || ((((!(0 == systemActive) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && \result == 1)) || ((((((1 <= tmp && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == 1) && 1 <= \result) && \result == 1)) || (((((!(0 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == 1) && \result == 1) - InvariantResult [Line: 309]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: (((((((\result == 0 && !(0 == systemActive)) && 2 <= waterLevel) && 2 <= \result) && splverifierCounter == 0) && tmp == 0) && tmp == 1) && \result == 1) || (((((pumpRunning == 0 && splverifierCounter == 0) && tmp == 1) && 1 <= waterLevel) && \result == 1) && 1 <= \result) - InvariantResult [Line: 309]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 309]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 407]: Loop Invariant Derived loop invariant: ((((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) && tmp == 1) && \result == 1) || ((((waterLevel == 1 && pumpRunning == 0) && tmp == 1) && splverifierCounter == 0) && \result == 1) - InvariantResult [Line: 203]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 553]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 491]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 309]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 309]: Loop Invariant Derived loop invariant: ((((((\result == 0 && !(0 == systemActive)) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && tmp == 0) && tmp == 1) && \result == 1 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (waterLevel == 1 && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 309]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 608]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: ((((((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) && tmp == 1) && \result == 1) || ((((!(0 == systemActive) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && \result == 1)) || ((((((1 <= tmp && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == 1) && 1 <= \result) && \result == 1)) || (((((!(0 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == 1) && \result == 1) - InvariantResult [Line: 553]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 608]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 553]: Loop Invariant Derived loop invariant: ((((((\result == 0 && !(0 == systemActive)) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && tmp == 0) && tmp == 1) && \result == 1 - InvariantResult [Line: 553]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 430]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 553]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 553]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 203]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 474]: Loop Invariant Derived loop invariant: (((waterLevel == 1 && pumpRunning == 0) && tmp == systemActive) && tmp == 1) && \result == 1 - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: ((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && \result == 1 - InvariantResult [Line: 203]: Loop Invariant Derived loop invariant: (((((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) && tmp == 1) && \result == 1) || ((((((\result == 0 && !(0 == systemActive)) && 2 <= waterLevel) && splverifierCounter == 0) && tmp == 0) && tmp == 1) && \result == 1)) || ((((waterLevel == 1 && pumpRunning == 0) && splverifierCounter == 0) && tmp == 1) && \result == 1) - InvariantResult [Line: 195]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 195]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 608]: Loop Invariant Derived loop invariant: ((((!(0 == systemActive) && \result == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == 1) && \result == 1 - InvariantResult [Line: 195]: Loop Invariant Derived loop invariant: (((((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) && tmp == 1) && \result == 1) || ((((waterLevel == 1 && pumpRunning == 0) && splverifierCounter == 0) && tmp == 1) && \result == 1)) || ((((!(0 == systemActive) && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 140 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.7s, OverallIterations: 14, TraceHistogramMax: 3, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 10.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1786 SDtfs, 2354 SDslu, 2807 SDs, 0 SdLazy, 384 SolverSat, 72 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 155 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=376occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 14 MinimizatonAttempts, 1480 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 56 LocationsWithAnnotation, 56 PreInvPairs, 225 NumberOfFragments, 746 HoareAnnotationTreeSize, 56 FomulaSimplifications, 1721946 FormulaSimplificationTreeSizeReduction, 3.3s HoareSimplificationTime, 56 FomulaSimplificationsInter, 629731 FormulaSimplificationTreeSizeReductionInter, 7.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 602 NumberOfCodeBlocks, 602 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 587 ConstructedInterpolants, 0 QuantifiedInterpolants, 46513 SizeOfPredicates, 4 NumberOfNonLiveVariables, 437 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 15 InterpolantComputations, 13 PerfectInterpolantSequences, 148/154 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...