./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product49.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_spec2_product49.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 1ee24648c2b11ab591f00afa125ad014515f38d4 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 01:42:34,596 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 01:42:34,598 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 01:42:34,622 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 01:42:34,622 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 01:42:34,623 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 01:42:34,625 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 01:42:34,626 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 01:42:34,628 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 01:42:34,629 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 01:42:34,630 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 01:42:34,633 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 01:42:34,633 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 01:42:34,636 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 01:42:34,638 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 01:42:34,641 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 01:42:34,642 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 01:42:34,646 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 01:42:34,648 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 01:42:34,652 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 01:42:34,657 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 01:42:34,658 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 01:42:34,661 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 01:42:34,663 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 01:42:34,676 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 01:42:34,678 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 01:42:34,678 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 01:42:34,679 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 01:42:34,680 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 01:42:34,681 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 01:42:34,682 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 01:42:34,683 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 01:42:34,684 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 01:42:34,685 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 01:42:34,686 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 01:42:34,687 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 01:42:34,687 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 01:42:34,688 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 01:42:34,688 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 01:42:34,689 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 01:42:34,690 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 01:42:34,691 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 01:42:34,741 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 01:42:34,741 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 01:42:34,742 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 01:42:34,745 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 01:42:34,745 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 01:42:34,746 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 01:42:34,746 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 01:42:34,746 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 01:42:34,746 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 01:42:34,747 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 01:42:34,747 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 01:42:34,747 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 01:42:34,748 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 01:42:34,748 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 01:42:34,748 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 01:42:34,751 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 01:42:34,751 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 01:42:34,752 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 01:42:34,752 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 01:42:34,752 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 01:42:34,752 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 01:42:34,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:42:34,753 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 01:42:34,753 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 01:42:34,753 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 01:42:34,754 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 01:42:34,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 01:42:34,756 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 01:42:34,756 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 01:42:34,757 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 -> 1ee24648c2b11ab591f00afa125ad014515f38d4 [2020-10-20 01:42:34,988 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 01:42:35,001 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 01:42:35,005 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 01:42:35,006 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 01:42:35,007 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 01:42:35,007 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product49.cil.c [2020-10-20 01:42:35,068 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/902e367d9/b4dd41a9a6614541b464f139260a55cf/FLAG2f4ed1668 [2020-10-20 01:42:35,687 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 01:42:35,688 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product49.cil.c [2020-10-20 01:42:35,710 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/902e367d9/b4dd41a9a6614541b464f139260a55cf/FLAG2f4ed1668 [2020-10-20 01:42:35,965 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/902e367d9/b4dd41a9a6614541b464f139260a55cf [2020-10-20 01:42:35,970 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 01:42:35,976 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 01:42:35,977 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 01:42:35,978 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 01:42:35,981 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 01:42:35,982 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:42:35" (1/1) ... [2020-10-20 01:42:35,985 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@540fba32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:35, skipping insertion in model container [2020-10-20 01:42:35,985 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:42:35" (1/1) ... [2020-10-20 01:42:35,992 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 01:42:36,056 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 01:42:36,385 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:42:36,410 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 01:42:36,538 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:42:36,591 INFO L208 MainTranslator]: Completed translation [2020-10-20 01:42:36,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:36 WrapperNode [2020-10-20 01:42:36,592 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 01:42:36,594 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 01:42:36,594 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 01:42:36,594 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 01:42:36,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:36" (1/1) ... [2020-10-20 01:42:36,621 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:36" (1/1) ... [2020-10-20 01:42:36,683 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 01:42:36,684 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 01:42:36,684 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 01:42:36,684 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 01:42:36,696 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:36" (1/1) ... [2020-10-20 01:42:36,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:36" (1/1) ... [2020-10-20 01:42:36,702 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:36" (1/1) ... [2020-10-20 01:42:36,703 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:36" (1/1) ... [2020-10-20 01:42:36,716 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:36" (1/1) ... [2020-10-20 01:42:36,725 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:36" (1/1) ... [2020-10-20 01:42:36,729 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:36" (1/1) ... [2020-10-20 01:42:36,735 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 01:42:36,735 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 01:42:36,736 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 01:42:36,736 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 01:42:36,737 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:36" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:42:36,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 01:42:36,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 01:42:36,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 01:42:36,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 01:42:37,789 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 01:42:37,789 INFO L298 CfgBuilder]: Removed 164 assume(true) statements. [2020-10-20 01:42:37,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:42:37 BoogieIcfgContainer [2020-10-20 01:42:37,792 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 01:42:37,793 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 01:42:37,793 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 01:42:37,797 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 01:42:37,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 01:42:35" (1/3) ... [2020-10-20 01:42:37,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43d22d3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:42:37, skipping insertion in model container [2020-10-20 01:42:37,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:36" (2/3) ... [2020-10-20 01:42:37,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43d22d3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:42:37, skipping insertion in model container [2020-10-20 01:42:37,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:42:37" (3/3) ... [2020-10-20 01:42:37,801 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product49.cil.c [2020-10-20 01:42:37,813 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 01:42:37,821 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-20 01:42:37,836 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-20 01:42:37,862 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 01:42:37,862 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 01:42:37,863 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 01:42:37,863 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 01:42:37,863 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 01:42:37,863 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 01:42:37,864 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 01:42:37,864 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 01:42:37,895 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states. [2020-10-20 01:42:37,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-20 01:42:37,902 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:37,903 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:42:37,904 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:37,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:37,909 INFO L82 PathProgramCache]: Analyzing trace with hash -1599603742, now seen corresponding path program 1 times [2020-10-20 01:42:37,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:37,917 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176938700] [2020-10-20 01:42:37,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:38,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:38,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:42:38,225 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176938700] [2020-10-20 01:42:38,226 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:38,226 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:42:38,227 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193667731] [2020-10-20 01:42:38,232 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 01:42:38,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:38,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 01:42:38,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 01:42:38,249 INFO L87 Difference]: Start difference. First operand 124 states. Second operand 2 states. [2020-10-20 01:42:38,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:38,285 INFO L93 Difference]: Finished difference Result 238 states and 363 transitions. [2020-10-20 01:42:38,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 01:42:38,287 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-10-20 01:42:38,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:38,301 INFO L225 Difference]: With dead ends: 238 [2020-10-20 01:42:38,301 INFO L226 Difference]: Without dead ends: 117 [2020-10-20 01:42:38,305 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 01:42:38,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-10-20 01:42:38,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2020-10-20 01:42:38,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2020-10-20 01:42:38,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 172 transitions. [2020-10-20 01:42:38,355 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 172 transitions. Word has length 18 [2020-10-20 01:42:38,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:38,356 INFO L481 AbstractCegarLoop]: Abstraction has 117 states and 172 transitions. [2020-10-20 01:42:38,356 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 01:42:38,356 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 172 transitions. [2020-10-20 01:42:38,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-20 01:42:38,357 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:38,357 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:42:38,358 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 01:42:38,358 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:38,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:38,358 INFO L82 PathProgramCache]: Analyzing trace with hash 299902115, now seen corresponding path program 1 times [2020-10-20 01:42:38,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:38,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081681677] [2020-10-20 01:42:38,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:38,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:38,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:42:38,473 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081681677] [2020-10-20 01:42:38,474 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:38,474 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:42:38,474 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478573433] [2020-10-20 01:42:38,477 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:42:38,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:38,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:42:38,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:42:38,478 INFO L87 Difference]: Start difference. First operand 117 states and 172 transitions. Second operand 3 states. [2020-10-20 01:42:38,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:38,492 INFO L93 Difference]: Finished difference Result 117 states and 172 transitions. [2020-10-20 01:42:38,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:42:38,493 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-20 01:42:38,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:38,494 INFO L225 Difference]: With dead ends: 117 [2020-10-20 01:42:38,495 INFO L226 Difference]: Without dead ends: 49 [2020-10-20 01:42:38,496 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:42:38,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-10-20 01:42:38,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2020-10-20 01:42:38,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-10-20 01:42:38,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 71 transitions. [2020-10-20 01:42:38,503 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 71 transitions. Word has length 19 [2020-10-20 01:42:38,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:38,503 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 71 transitions. [2020-10-20 01:42:38,503 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:42:38,504 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 71 transitions. [2020-10-20 01:42:38,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-20 01:42:38,505 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:38,505 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:42:38,505 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 01:42:38,505 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:38,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:38,506 INFO L82 PathProgramCache]: Analyzing trace with hash 136399670, now seen corresponding path program 1 times [2020-10-20 01:42:38,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:38,506 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451259725] [2020-10-20 01:42:38,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:38,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:38,590 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 01:42:38,590 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451259725] [2020-10-20 01:42:38,590 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:38,591 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:42:38,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186773405] [2020-10-20 01:42:38,591 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:42:38,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:38,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:42:38,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:42:38,592 INFO L87 Difference]: Start difference. First operand 49 states and 71 transitions. Second operand 3 states. [2020-10-20 01:42:38,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:38,605 INFO L93 Difference]: Finished difference Result 91 states and 135 transitions. [2020-10-20 01:42:38,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:42:38,606 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-10-20 01:42:38,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:38,607 INFO L225 Difference]: With dead ends: 91 [2020-10-20 01:42:38,607 INFO L226 Difference]: Without dead ends: 49 [2020-10-20 01:42:38,608 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:42:38,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-10-20 01:42:38,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2020-10-20 01:42:38,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-10-20 01:42:38,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 70 transitions. [2020-10-20 01:42:38,615 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 70 transitions. Word has length 24 [2020-10-20 01:42:38,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:38,615 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 70 transitions. [2020-10-20 01:42:38,615 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:42:38,615 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 70 transitions. [2020-10-20 01:42:38,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-20 01:42:38,616 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:38,616 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 01:42:38,617 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 01:42:38,617 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:38,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:38,617 INFO L82 PathProgramCache]: Analyzing trace with hash 616180244, now seen corresponding path program 1 times [2020-10-20 01:42:38,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:38,618 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677231031] [2020-10-20 01:42:38,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:38,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:38,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:42:38,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677231031] [2020-10-20 01:42:38,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:38,714 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:42:38,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685508134] [2020-10-20 01:42:38,715 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:42:38,715 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:38,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:42:38,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:42:38,716 INFO L87 Difference]: Start difference. First operand 49 states and 70 transitions. Second operand 3 states. [2020-10-20 01:42:38,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:38,751 INFO L93 Difference]: Finished difference Result 113 states and 165 transitions. [2020-10-20 01:42:38,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:42:38,752 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-10-20 01:42:38,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:38,753 INFO L225 Difference]: With dead ends: 113 [2020-10-20 01:42:38,753 INFO L226 Difference]: Without dead ends: 71 [2020-10-20 01:42:38,754 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:42:38,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-10-20 01:42:38,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 69. [2020-10-20 01:42:38,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-10-20 01:42:38,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 98 transitions. [2020-10-20 01:42:38,764 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 98 transitions. Word has length 26 [2020-10-20 01:42:38,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:38,764 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 98 transitions. [2020-10-20 01:42:38,764 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:42:38,765 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 98 transitions. [2020-10-20 01:42:38,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-20 01:42:38,766 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:38,766 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] [2020-10-20 01:42:38,767 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 01:42:38,767 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:38,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:38,767 INFO L82 PathProgramCache]: Analyzing trace with hash -604593117, now seen corresponding path program 1 times [2020-10-20 01:42:38,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:38,768 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745093163] [2020-10-20 01:42:38,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:38,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:38,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:42:38,860 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745093163] [2020-10-20 01:42:38,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:38,861 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:42:38,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733972302] [2020-10-20 01:42:38,861 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:42:38,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:38,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:42:38,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:42:38,862 INFO L87 Difference]: Start difference. First operand 69 states and 98 transitions. Second operand 5 states. [2020-10-20 01:42:38,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:38,981 INFO L93 Difference]: Finished difference Result 182 states and 258 transitions. [2020-10-20 01:42:38,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 01:42:38,982 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-10-20 01:42:38,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:38,983 INFO L225 Difference]: With dead ends: 182 [2020-10-20 01:42:38,984 INFO L226 Difference]: Without dead ends: 120 [2020-10-20 01:42:38,985 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-20 01:42:38,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-10-20 01:42:38,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 75. [2020-10-20 01:42:38,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-10-20 01:42:38,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 104 transitions. [2020-10-20 01:42:38,995 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 104 transitions. Word has length 32 [2020-10-20 01:42:38,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:38,996 INFO L481 AbstractCegarLoop]: Abstraction has 75 states and 104 transitions. [2020-10-20 01:42:38,996 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:42:38,996 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 104 transitions. [2020-10-20 01:42:38,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-20 01:42:38,997 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:38,998 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] [2020-10-20 01:42:38,998 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 01:42:38,998 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:38,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:38,999 INFO L82 PathProgramCache]: Analyzing trace with hash 328870592, now seen corresponding path program 1 times [2020-10-20 01:42:38,999 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:38,999 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477574878] [2020-10-20 01:42:39,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:39,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:39,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:42:39,063 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477574878] [2020-10-20 01:42:39,063 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:39,063 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:42:39,064 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191725277] [2020-10-20 01:42:39,064 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:42:39,065 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:39,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:42:39,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:42:39,066 INFO L87 Difference]: Start difference. First operand 75 states and 104 transitions. Second operand 5 states. [2020-10-20 01:42:39,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:39,158 INFO L93 Difference]: Finished difference Result 387 states and 547 transitions. [2020-10-20 01:42:39,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-20 01:42:39,159 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-10-20 01:42:39,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:39,161 INFO L225 Difference]: With dead ends: 387 [2020-10-20 01:42:39,162 INFO L226 Difference]: Without dead ends: 319 [2020-10-20 01:42:39,162 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-20 01:42:39,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2020-10-20 01:42:39,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 135. [2020-10-20 01:42:39,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2020-10-20 01:42:39,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 186 transitions. [2020-10-20 01:42:39,180 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 186 transitions. Word has length 32 [2020-10-20 01:42:39,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:39,180 INFO L481 AbstractCegarLoop]: Abstraction has 135 states and 186 transitions. [2020-10-20 01:42:39,180 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:42:39,180 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 186 transitions. [2020-10-20 01:42:39,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-20 01:42:39,182 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:39,182 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:42:39,182 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-20 01:42:39,182 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:39,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:39,183 INFO L82 PathProgramCache]: Analyzing trace with hash 328714056, now seen corresponding path program 1 times [2020-10-20 01:42:39,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:39,183 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347310051] [2020-10-20 01:42:39,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:39,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:39,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:42:39,241 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347310051] [2020-10-20 01:42:39,241 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:39,241 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:42:39,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313832247] [2020-10-20 01:42:39,242 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:42:39,242 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:39,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:42:39,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:42:39,243 INFO L87 Difference]: Start difference. First operand 135 states and 186 transitions. Second operand 5 states. [2020-10-20 01:42:39,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:39,393 INFO L93 Difference]: Finished difference Result 506 states and 701 transitions. [2020-10-20 01:42:39,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-20 01:42:39,394 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2020-10-20 01:42:39,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:39,397 INFO L225 Difference]: With dead ends: 506 [2020-10-20 01:42:39,397 INFO L226 Difference]: Without dead ends: 378 [2020-10-20 01:42:39,398 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-20 01:42:39,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2020-10-20 01:42:39,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 134. [2020-10-20 01:42:39,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-10-20 01:42:39,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 183 transitions. [2020-10-20 01:42:39,427 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 183 transitions. Word has length 33 [2020-10-20 01:42:39,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:39,430 INFO L481 AbstractCegarLoop]: Abstraction has 134 states and 183 transitions. [2020-10-20 01:42:39,430 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:42:39,430 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 183 transitions. [2020-10-20 01:42:39,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-20 01:42:39,433 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:39,434 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:42:39,434 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-20 01:42:39,434 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:39,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:39,435 INFO L82 PathProgramCache]: Analyzing trace with hash 96314925, now seen corresponding path program 1 times [2020-10-20 01:42:39,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:39,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79188863] [2020-10-20 01:42:39,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:39,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:39,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:42:39,496 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79188863] [2020-10-20 01:42:39,496 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:39,496 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:42:39,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842892424] [2020-10-20 01:42:39,497 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 01:42:39,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:39,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 01:42:39,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 01:42:39,498 INFO L87 Difference]: Start difference. First operand 134 states and 183 transitions. Second operand 4 states. [2020-10-20 01:42:39,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:39,576 INFO L93 Difference]: Finished difference Result 319 states and 433 transitions. [2020-10-20 01:42:39,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 01:42:39,577 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2020-10-20 01:42:39,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:39,579 INFO L225 Difference]: With dead ends: 319 [2020-10-20 01:42:39,580 INFO L226 Difference]: Without dead ends: 192 [2020-10-20 01:42:39,581 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:42:39,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-10-20 01:42:39,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 142. [2020-10-20 01:42:39,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-10-20 01:42:39,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 191 transitions. [2020-10-20 01:42:39,605 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 191 transitions. Word has length 33 [2020-10-20 01:42:39,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:39,606 INFO L481 AbstractCegarLoop]: Abstraction has 142 states and 191 transitions. [2020-10-20 01:42:39,606 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 01:42:39,606 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 191 transitions. [2020-10-20 01:42:39,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-20 01:42:39,612 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:39,613 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:42:39,613 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-20 01:42:39,614 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:39,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:39,615 INFO L82 PathProgramCache]: Analyzing trace with hash -490491089, now seen corresponding path program 1 times [2020-10-20 01:42:39,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:39,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800540504] [2020-10-20 01:42:39,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:39,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:39,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:42:39,689 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800540504] [2020-10-20 01:42:39,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:39,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:42:39,690 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953533369] [2020-10-20 01:42:39,691 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:42:39,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:39,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:42:39,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:42:39,692 INFO L87 Difference]: Start difference. First operand 142 states and 191 transitions. Second operand 3 states. [2020-10-20 01:42:39,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:39,730 INFO L93 Difference]: Finished difference Result 327 states and 439 transitions. [2020-10-20 01:42:39,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:42:39,731 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-10-20 01:42:39,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:39,734 INFO L225 Difference]: With dead ends: 327 [2020-10-20 01:42:39,734 INFO L226 Difference]: Without dead ends: 192 [2020-10-20 01:42:39,735 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:42:39,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-10-20 01:42:39,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2020-10-20 01:42:39,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2020-10-20 01:42:39,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 251 transitions. [2020-10-20 01:42:39,751 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 251 transitions. Word has length 33 [2020-10-20 01:42:39,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:39,751 INFO L481 AbstractCegarLoop]: Abstraction has 192 states and 251 transitions. [2020-10-20 01:42:39,751 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:42:39,752 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 251 transitions. [2020-10-20 01:42:39,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-20 01:42:39,755 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:39,755 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:42:39,756 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-20 01:42:39,756 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:39,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:39,757 INFO L82 PathProgramCache]: Analyzing trace with hash 1404141039, now seen corresponding path program 1 times [2020-10-20 01:42:39,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:39,757 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399031685] [2020-10-20 01:42:39,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:39,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:39,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:42:39,845 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399031685] [2020-10-20 01:42:39,845 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:39,846 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:42:39,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763065724] [2020-10-20 01:42:39,846 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:42:39,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:39,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:42:39,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:42:39,847 INFO L87 Difference]: Start difference. First operand 192 states and 251 transitions. Second operand 3 states. [2020-10-20 01:42:39,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:39,885 INFO L93 Difference]: Finished difference Result 295 states and 389 transitions. [2020-10-20 01:42:39,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:42:39,886 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2020-10-20 01:42:39,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:39,888 INFO L225 Difference]: With dead ends: 295 [2020-10-20 01:42:39,888 INFO L226 Difference]: Without dead ends: 293 [2020-10-20 01:42:39,888 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:42:39,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-10-20 01:42:39,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 234. [2020-10-20 01:42:39,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-10-20 01:42:39,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 313 transitions. [2020-10-20 01:42:39,908 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 313 transitions. Word has length 34 [2020-10-20 01:42:39,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:39,908 INFO L481 AbstractCegarLoop]: Abstraction has 234 states and 313 transitions. [2020-10-20 01:42:39,908 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:42:39,909 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 313 transitions. [2020-10-20 01:42:39,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-20 01:42:39,909 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:39,910 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:42:39,910 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-20 01:42:39,910 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:39,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:39,911 INFO L82 PathProgramCache]: Analyzing trace with hash 1447506227, now seen corresponding path program 1 times [2020-10-20 01:42:39,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:39,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301313638] [2020-10-20 01:42:39,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:39,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:39,988 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 15 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:42:39,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301313638] [2020-10-20 01:42:39,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [3298093] [2020-10-20 01:42:39,990 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 01:42:40,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:40,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 01:42:40,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 01:42:40,179 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:42:40,180 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-20 01:42:40,180 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-10-20 01:42:40,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964848128] [2020-10-20 01:42:40,181 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:42:40,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:40,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:42:40,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:42:40,182 INFO L87 Difference]: Start difference. First operand 234 states and 313 transitions. Second operand 3 states. [2020-10-20 01:42:40,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:40,398 INFO L93 Difference]: Finished difference Result 374 states and 510 transitions. [2020-10-20 01:42:40,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:42:40,398 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 58 [2020-10-20 01:42:40,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:40,400 INFO L225 Difference]: With dead ends: 374 [2020-10-20 01:42:40,400 INFO L226 Difference]: Without dead ends: 197 [2020-10-20 01:42:40,401 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:42:40,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2020-10-20 01:42:40,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2020-10-20 01:42:40,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2020-10-20 01:42:40,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 255 transitions. [2020-10-20 01:42:40,426 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 255 transitions. Word has length 58 [2020-10-20 01:42:40,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:40,427 INFO L481 AbstractCegarLoop]: Abstraction has 197 states and 255 transitions. [2020-10-20 01:42:40,427 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:42:40,427 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 255 transitions. [2020-10-20 01:42:40,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-20 01:42:40,428 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:40,429 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:42:40,642 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-10-20 01:42:40,643 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:40,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:40,643 INFO L82 PathProgramCache]: Analyzing trace with hash 1936924503, now seen corresponding path program 1 times [2020-10-20 01:42:40,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:40,643 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753855081] [2020-10-20 01:42:40,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:40,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:40,770 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-20 01:42:40,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753855081] [2020-10-20 01:42:40,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [555412397] [2020-10-20 01:42:40,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 01:42:40,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:40,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 01:42:40,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 01:42:40,986 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-20 01:42:40,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-20 01:42:40,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2020-10-20 01:42:40,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063848173] [2020-10-20 01:42:40,988 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:42:40,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:40,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:42:40,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-20 01:42:40,989 INFO L87 Difference]: Start difference. First operand 197 states and 255 transitions. Second operand 5 states. [2020-10-20 01:42:41,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:41,050 INFO L93 Difference]: Finished difference Result 494 states and 655 transitions. [2020-10-20 01:42:41,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 01:42:41,051 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2020-10-20 01:42:41,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:41,053 INFO L225 Difference]: With dead ends: 494 [2020-10-20 01:42:41,053 INFO L226 Difference]: Without dead ends: 354 [2020-10-20 01:42:41,054 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-20 01:42:41,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2020-10-20 01:42:41,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 203. [2020-10-20 01:42:41,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-10-20 01:42:41,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 261 transitions. [2020-10-20 01:42:41,072 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 261 transitions. Word has length 58 [2020-10-20 01:42:41,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:41,072 INFO L481 AbstractCegarLoop]: Abstraction has 203 states and 261 transitions. [2020-10-20 01:42:41,072 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:42:41,072 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 261 transitions. [2020-10-20 01:42:41,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-20 01:42:41,073 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:41,073 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:42:41,286 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-10-20 01:42:41,287 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:41,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:41,287 INFO L82 PathProgramCache]: Analyzing trace with hash 1678759065, now seen corresponding path program 1 times [2020-10-20 01:42:41,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:41,288 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729619150] [2020-10-20 01:42:41,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:41,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:41,402 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:42:41,402 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729619150] [2020-10-20 01:42:41,403 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:41,403 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-20 01:42:41,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117690130] [2020-10-20 01:42:41,404 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 01:42:41,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:41,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 01:42:41,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-20 01:42:41,405 INFO L87 Difference]: Start difference. First operand 203 states and 261 transitions. Second operand 6 states. [2020-10-20 01:42:41,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:41,553 INFO L93 Difference]: Finished difference Result 485 states and 640 transitions. [2020-10-20 01:42:41,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 01:42:41,553 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 58 [2020-10-20 01:42:41,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:41,554 INFO L225 Difference]: With dead ends: 485 [2020-10-20 01:42:41,554 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 01:42:41,555 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-10-20 01:42:41,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 01:42:41,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 01:42:41,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 01:42:41,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 01:42:41,556 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2020-10-20 01:42:41,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:41,557 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 01:42:41,557 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 01:42:41,557 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 01:42:41,557 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 01:42:41,557 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-20 01:42:41,560 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-20 01:42:41,674 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 74 [2020-10-20 01:42:42,655 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 31 [2020-10-20 01:42:43,092 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 21 [2020-10-20 01:42:43,410 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 21 [2020-10-20 01:42:43,672 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 32 [2020-10-20 01:42:43,839 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 27 [2020-10-20 01:42:43,985 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 29 [2020-10-20 01:42:44,393 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 30 [2020-10-20 01:42:44,650 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 21 [2020-10-20 01:42:45,032 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 31 [2020-10-20 01:42:45,040 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 01:42:45,040 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-20 01:42:45,040 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-20 01:42:45,040 INFO L274 CegarLoopResult]: For program point L3-2(line 3) no Hoare annotation was computed. [2020-10-20 01:42:45,041 INFO L274 CegarLoopResult]: For program point L532(lines 532 536) no Hoare annotation was computed. [2020-10-20 01:42:45,041 INFO L274 CegarLoopResult]: For program point L532-2(lines 532 536) no Hoare annotation was computed. [2020-10-20 01:42:45,041 INFO L274 CegarLoopResult]: For program point L532-3(lines 532 536) no Hoare annotation was computed. [2020-10-20 01:42:45,041 INFO L274 CegarLoopResult]: For program point L532-5(lines 532 536) no Hoare annotation was computed. [2020-10-20 01:42:45,041 INFO L274 CegarLoopResult]: For program point L532-6(lines 532 536) no Hoare annotation was computed. [2020-10-20 01:42:45,041 INFO L274 CegarLoopResult]: For program point L532-8(lines 532 536) no Hoare annotation was computed. [2020-10-20 01:42:45,041 INFO L274 CegarLoopResult]: For program point L532-9(lines 532 536) no Hoare annotation was computed. [2020-10-20 01:42:45,042 INFO L274 CegarLoopResult]: For program point L532-11(lines 532 536) no Hoare annotation was computed. [2020-10-20 01:42:45,042 INFO L274 CegarLoopResult]: For program point L532-12(lines 532 536) no Hoare annotation was computed. [2020-10-20 01:42:45,042 INFO L274 CegarLoopResult]: For program point L532-14(lines 532 536) no Hoare annotation was computed. [2020-10-20 01:42:45,042 INFO L274 CegarLoopResult]: For program point L532-15(lines 532 536) no Hoare annotation was computed. [2020-10-20 01:42:45,042 INFO L274 CegarLoopResult]: For program point L532-17(lines 532 536) no Hoare annotation was computed. [2020-10-20 01:42:45,043 INFO L274 CegarLoopResult]: For program point L434(lines 434 442) no Hoare annotation was computed. [2020-10-20 01:42:45,043 INFO L274 CegarLoopResult]: For program point L434-1(lines 434 442) no Hoare annotation was computed. [2020-10-20 01:42:45,043 INFO L274 CegarLoopResult]: For program point L434-2(lines 434 442) no Hoare annotation was computed. [2020-10-20 01:42:45,043 INFO L274 CegarLoopResult]: For program point L237(lines 237 243) no Hoare annotation was computed. [2020-10-20 01:42:45,043 INFO L274 CegarLoopResult]: For program point L237-1(lines 237 243) no Hoare annotation was computed. [2020-10-20 01:42:45,043 INFO L274 CegarLoopResult]: For program point L237-2(lines 237 243) no Hoare annotation was computed. [2020-10-20 01:42:45,043 INFO L274 CegarLoopResult]: For program point L237-3(lines 237 243) no Hoare annotation was computed. [2020-10-20 01:42:45,044 INFO L270 CegarLoopResult]: At program point L105(lines 101 107) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0)) [2020-10-20 01:42:45,044 INFO L274 CegarLoopResult]: For program point L237-4(lines 237 243) no Hoare annotation was computed. [2020-10-20 01:42:45,044 INFO L274 CegarLoopResult]: For program point L237-5(lines 237 243) no Hoare annotation was computed. [2020-10-20 01:42:45,044 INFO L274 CegarLoopResult]: For program point L172(lines 172 176) no Hoare annotation was computed. [2020-10-20 01:42:45,044 INFO L274 CegarLoopResult]: For program point L932(line 932) no Hoare annotation was computed. [2020-10-20 01:42:45,044 INFO L274 CegarLoopResult]: For program point L932-1(line 932) no Hoare annotation was computed. [2020-10-20 01:42:45,044 INFO L274 CegarLoopResult]: For program point L932-2(line 932) no Hoare annotation was computed. [2020-10-20 01:42:45,044 INFO L274 CegarLoopResult]: For program point L404(lines 404 421) no Hoare annotation was computed. [2020-10-20 01:42:45,045 INFO L274 CegarLoopResult]: For program point L404-1(lines 404 421) no Hoare annotation was computed. [2020-10-20 01:42:45,045 INFO L274 CegarLoopResult]: For program point L338(lines 338 349) no Hoare annotation was computed. [2020-10-20 01:42:45,045 INFO L274 CegarLoopResult]: For program point L404-2(lines 404 421) no Hoare annotation was computed. [2020-10-20 01:42:45,045 INFO L274 CegarLoopResult]: For program point L404-3(lines 404 421) no Hoare annotation was computed. [2020-10-20 01:42:45,045 INFO L274 CegarLoopResult]: For program point L404-4(lines 404 421) no Hoare annotation was computed. [2020-10-20 01:42:45,045 INFO L274 CegarLoopResult]: For program point L404-5(lines 404 421) no Hoare annotation was computed. [2020-10-20 01:42:45,045 INFO L270 CegarLoopResult]: At program point L372(lines 371 390) the Hoare annotation is: (let ((.cse1 (= ~methaneLevelCritical~0 0)) (.cse0 (= 1 ~systemActive~0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse4 (<= 1 ~waterLevel~0))) (or (and .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3) (and (= ULTIMATE.start_isLowWaterLevel_~tmp~6 0) .cse0 .cse1 (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) .cse2 .cse3 .cse4) (and (<= 1 ~pumpRunning~0) .cse0 .cse3 .cse4) (and .cse0 .cse2 .cse3 .cse4 (= ~methAndRunningLastTime~0 0)))) [2020-10-20 01:42:45,045 INFO L274 CegarLoopResult]: For program point L372-1(lines 372 378) no Hoare annotation was computed. [2020-10-20 01:42:45,045 INFO L270 CegarLoopResult]: At program point L372-2(lines 371 390) the Hoare annotation is: false [2020-10-20 01:42:45,046 INFO L270 CegarLoopResult]: At program point L372-3(lines 371 390) the Hoare annotation is: false [2020-10-20 01:42:45,046 INFO L270 CegarLoopResult]: At program point L967(lines 962 970) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0)) [2020-10-20 01:42:45,046 INFO L270 CegarLoopResult]: At program point L538(lines 523 541) the Hoare annotation is: false [2020-10-20 01:42:45,046 INFO L270 CegarLoopResult]: At program point L538-1(lines 523 541) the Hoare annotation is: (let ((.cse1 (<= 2 ~waterLevel~0)) (.cse5 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~2 0)) (.cse0 (= 1 ~systemActive~0)) (.cse6 (= |ULTIMATE.start_isHighWaterLevel_#res| 0)) (.cse2 (= ~pumpRunning~0 0)) (.cse7 (<= 1 ~waterLevel~0)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse4 (= ~methAndRunningLastTime~0 0))) (or (and .cse0 (= ~methaneLevelCritical~0 0) .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 (= ULTIMATE.start_isLowWaterLevel_~tmp~6 0) .cse0 .cse6 (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) .cse2 .cse3 .cse7) (and .cse5 .cse0 .cse6 .cse1 .cse2 .cse3) (and .cse5 .cse0 .cse6 .cse2 .cse7 .cse3 .cse4))) [2020-10-20 01:42:45,046 INFO L270 CegarLoopResult]: At program point L538-2(lines 523 541) the Hoare annotation is: false [2020-10-20 01:42:45,046 INFO L270 CegarLoopResult]: At program point L538-3(lines 523 541) the Hoare annotation is: false [2020-10-20 01:42:45,046 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 01:42:45,047 INFO L270 CegarLoopResult]: At program point L538-4(lines 523 541) the Hoare annotation is: false [2020-10-20 01:42:45,047 INFO L270 CegarLoopResult]: At program point L538-5(lines 523 541) the Hoare annotation is: false [2020-10-20 01:42:45,047 INFO L270 CegarLoopResult]: At program point L242(lines 233 246) the Hoare annotation is: false [2020-10-20 01:42:45,047 INFO L270 CegarLoopResult]: At program point L242-1(lines 233 246) the Hoare annotation is: (let ((.cse3 (<= 1 ~waterLevel~0)) (.cse4 (= |ULTIMATE.start_isHighWaterSensorDry_#res| 1)) (.cse0 (= 1 ~systemActive~0)) (.cse6 (<= 2 ~waterLevel~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse5 (= ~methAndRunningLastTime~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and (= ULTIMATE.start_isLowWaterLevel_~tmp~6 0) .cse0 (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) .cse1 .cse2 .cse3 .cse4) (and .cse0 (= ~methaneLevelCritical~0 0) .cse6 .cse1 .cse2) (and .cse0 .cse6 .cse1 .cse2 .cse5))) [2020-10-20 01:42:45,047 INFO L270 CegarLoopResult]: At program point L242-2(lines 233 246) the Hoare annotation is: false [2020-10-20 01:42:45,047 INFO L270 CegarLoopResult]: At program point L242-3(lines 233 246) the Hoare annotation is: false [2020-10-20 01:42:45,047 INFO L277 CegarLoopResult]: At program point L143(lines 124 146) the Hoare annotation is: true [2020-10-20 01:42:45,047 INFO L270 CegarLoopResult]: At program point L242-4(lines 233 246) the Hoare annotation is: false [2020-10-20 01:42:45,048 INFO L270 CegarLoopResult]: At program point L242-5(lines 233 246) the Hoare annotation is: false [2020-10-20 01:42:45,048 INFO L274 CegarLoopResult]: For program point L408(lines 408 416) no Hoare annotation was computed. [2020-10-20 01:42:45,048 INFO L274 CegarLoopResult]: For program point L408-1(lines 408 416) no Hoare annotation was computed. [2020-10-20 01:42:45,048 INFO L274 CegarLoopResult]: For program point L408-2(lines 408 416) no Hoare annotation was computed. [2020-10-20 01:42:45,048 INFO L274 CegarLoopResult]: For program point L309(lines 308 353) no Hoare annotation was computed. [2020-10-20 01:42:45,048 INFO L274 CegarLoopResult]: For program point L408-3(lines 408 416) no Hoare annotation was computed. [2020-10-20 01:42:45,048 INFO L274 CegarLoopResult]: For program point L276(lines 276 293) no Hoare annotation was computed. [2020-10-20 01:42:45,048 INFO L274 CegarLoopResult]: For program point L408-4(lines 408 416) no Hoare annotation was computed. [2020-10-20 01:42:45,049 INFO L270 CegarLoopResult]: At program point L276-1(lines 1 970) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (<= 1 ~pumpRunning~0) .cse0 (<= 2 ~waterLevel~0) .cse1) (and .cse0 (= ~pumpRunning~0 0) .cse1 (<= 1 ~waterLevel~0) (= ~methAndRunningLastTime~0 0)))) [2020-10-20 01:42:45,049 INFO L274 CegarLoopResult]: For program point L408-5(lines 408 416) no Hoare annotation was computed. [2020-10-20 01:42:45,049 INFO L274 CegarLoopResult]: For program point L276-2(lines 276 293) no Hoare annotation was computed. [2020-10-20 01:42:45,049 INFO L270 CegarLoopResult]: At program point L276-3(lines 1 970) the Hoare annotation is: false [2020-10-20 01:42:45,049 INFO L274 CegarLoopResult]: For program point L276-4(lines 276 293) no Hoare annotation was computed. [2020-10-20 01:42:45,049 INFO L270 CegarLoopResult]: At program point L276-5(lines 1 970) the Hoare annotation is: false [2020-10-20 01:42:45,049 INFO L274 CegarLoopResult]: For program point L310(lines 310 314) no Hoare annotation was computed. [2020-10-20 01:42:45,049 INFO L274 CegarLoopResult]: For program point L344(lines 344 348) no Hoare annotation was computed. [2020-10-20 01:42:45,050 INFO L274 CegarLoopResult]: For program point L344-2(lines 372 378) no Hoare annotation was computed. [2020-10-20 01:42:45,050 INFO L270 CegarLoopResult]: At program point L379(lines 379 385) the Hoare annotation is: (let ((.cse4 (<= 1 ~pumpRunning~0)) (.cse1 (<= 2 ~waterLevel~0)) (.cse0 (= 1 ~systemActive~0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse6 (<= 1 ~waterLevel~0)) (.cse5 (= ~methAndRunningLastTime~0 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse0 .cse1 .cse3 .cse5) (and .cse4 .cse0 (= ~methaneLevelCritical~0 0) .cse1 .cse3) (and (= ULTIMATE.start_isLowWaterLevel_~tmp~6 0) .cse0 (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) .cse2 .cse3 .cse6) (and .cse0 .cse2 .cse3 .cse6 .cse5))) [2020-10-20 01:42:45,050 INFO L270 CegarLoopResult]: At program point L379-1(lines 379 385) the Hoare annotation is: false [2020-10-20 01:42:45,050 INFO L270 CegarLoopResult]: At program point L379-2(lines 379 385) the Hoare annotation is: false [2020-10-20 01:42:45,050 INFO L274 CegarLoopResult]: For program point L280(lines 280 290) no Hoare annotation was computed. [2020-10-20 01:42:45,050 INFO L274 CegarLoopResult]: For program point L280-2(lines 280 290) no Hoare annotation was computed. [2020-10-20 01:42:45,050 INFO L274 CegarLoopResult]: For program point L280-4(lines 280 290) no Hoare annotation was computed. [2020-10-20 01:42:45,050 INFO L274 CegarLoopResult]: For program point L281(lines 281 287) no Hoare annotation was computed. [2020-10-20 01:42:45,051 INFO L274 CegarLoopResult]: For program point L281-2(lines 281 287) no Hoare annotation was computed. [2020-10-20 01:42:45,051 INFO L274 CegarLoopResult]: For program point L281-4(lines 281 287) no Hoare annotation was computed. [2020-10-20 01:42:45,051 INFO L274 CegarLoopResult]: For program point L184(lines 184 188) no Hoare annotation was computed. [2020-10-20 01:42:45,051 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 01:42:45,051 INFO L270 CegarLoopResult]: At program point L483(lines 478 486) the Hoare annotation is: (let ((.cse3 (= ~methAndRunningLastTime~0 0)) (.cse1 (<= 2 ~waterLevel~0)) (.cse0 (= 1 ~systemActive~0)) (.cse4 (= |ULTIMATE.start_isPumpRunning_#res| 0)) (.cse5 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse6 (<= 1 ~waterLevel~0))) (or (and (<= 1 ~pumpRunning~0) .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse4 .cse5 .cse2 .cse6 .cse3) (and .cse0 .cse4 .cse1 .cse5 .cse2) (and (= ULTIMATE.start_isLowWaterLevel_~tmp~6 0) .cse0 (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) .cse4 .cse5 .cse2 .cse6))) [2020-10-20 01:42:45,051 INFO L270 CegarLoopResult]: At program point L483-1(lines 478 486) the Hoare annotation is: false [2020-10-20 01:42:45,051 INFO L270 CegarLoopResult]: At program point L483-2(lines 478 486) the Hoare annotation is: false [2020-10-20 01:42:45,051 INFO L274 CegarLoopResult]: For program point L318(lines 318 324) no Hoare annotation was computed. [2020-10-20 01:42:45,052 INFO L270 CegarLoopResult]: At program point L318-1(lines 318 324) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (<= 1 ~pumpRunning~0) .cse0 (<= 2 ~waterLevel~0) .cse1) (and .cse0 (= ~pumpRunning~0 0) .cse1 (<= 1 ~waterLevel~0) (= ~methAndRunningLastTime~0 0)))) [2020-10-20 01:42:45,052 INFO L270 CegarLoopResult]: At program point L252(lines 247 255) the Hoare annotation is: (and (<= 1 ~pumpRunning~0) (= 1 ~systemActive~0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0)) [2020-10-20 01:42:45,052 INFO L270 CegarLoopResult]: At program point L252-1(lines 247 255) the Hoare annotation is: false [2020-10-20 01:42:45,052 INFO L270 CegarLoopResult]: At program point L252-2(lines 247 255) the Hoare annotation is: false [2020-10-20 01:42:45,052 INFO L270 CegarLoopResult]: At program point L54-2(lines 54 68) the Hoare annotation is: false [2020-10-20 01:42:45,052 INFO L274 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-10-20 01:42:45,052 INFO L274 CegarLoopResult]: For program point L551(lines 551 555) no Hoare annotation was computed. [2020-10-20 01:42:45,052 INFO L274 CegarLoopResult]: For program point L551-2(lines 551 555) no Hoare annotation was computed. [2020-10-20 01:42:45,052 INFO L274 CegarLoopResult]: For program point L551-3(lines 551 555) no Hoare annotation was computed. [2020-10-20 01:42:45,053 INFO L274 CegarLoopResult]: For program point L551-5(lines 551 555) no Hoare annotation was computed. [2020-10-20 01:42:45,053 INFO L274 CegarLoopResult]: For program point L551-6(lines 551 555) no Hoare annotation was computed. [2020-10-20 01:42:45,053 INFO L274 CegarLoopResult]: For program point L551-8(lines 551 555) no Hoare annotation was computed. [2020-10-20 01:42:45,053 INFO L270 CegarLoopResult]: At program point L354(lines 307 355) the Hoare annotation is: false [2020-10-20 01:42:45,053 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 01:42:45,053 INFO L274 CegarLoopResult]: For program point L58(lines 58 62) no Hoare annotation was computed. [2020-10-20 01:42:45,053 INFO L274 CegarLoopResult]: For program point L58-1(lines 372 378) no Hoare annotation was computed. [2020-10-20 01:42:45,053 INFO L274 CegarLoopResult]: For program point L160(lines 160 164) no Hoare annotation was computed. [2020-10-20 01:42:45,054 INFO L274 CegarLoopResult]: For program point L160-3(lines 160 164) no Hoare annotation was computed. [2020-10-20 01:42:45,054 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 01:42:45,054 INFO L274 CegarLoopResult]: For program point L160-6(lines 160 164) no Hoare annotation was computed. [2020-10-20 01:42:45,054 INFO L270 CegarLoopResult]: At program point L557(lines 542 560) the Hoare annotation is: (and (<= 1 ~pumpRunning~0) (<= 1 ULTIMATE.start_isLowWaterLevel_~tmp___0~3) (= ULTIMATE.start_isLowWaterLevel_~tmp~6 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 |ULTIMATE.start_isLowWaterLevel_#res|) (<= 1 ~waterLevel~0)) [2020-10-20 01:42:45,054 INFO L270 CegarLoopResult]: At program point L557-1(lines 542 560) the Hoare annotation is: false [2020-10-20 01:42:45,054 INFO L270 CegarLoopResult]: At program point L557-2(lines 542 560) the Hoare annotation is: false [2020-10-20 01:42:45,054 INFO L274 CegarLoopResult]: For program point L328(lines 328 334) no Hoare annotation was computed. [2020-10-20 01:42:45,054 INFO L270 CegarLoopResult]: At program point L328-1(lines 328 334) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (<= 1 ~pumpRunning~0) .cse0 (<= 2 ~waterLevel~0) .cse1) (and .cse0 (= ~pumpRunning~0 0) .cse1 (<= 1 ~waterLevel~0) (= ~methAndRunningLastTime~0 0)))) [2020-10-20 01:42:45,055 INFO L270 CegarLoopResult]: At program point L197(lines 192 200) the Hoare annotation is: (let ((.cse4 (<= 1 ~pumpRunning~0)) (.cse1 (<= 2 ~waterLevel~0)) (.cse0 (= 1 ~systemActive~0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse6 (<= 1 ~waterLevel~0)) (.cse5 (= ~methAndRunningLastTime~0 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse0 .cse1 .cse3 .cse5) (and .cse4 .cse0 (= ~methaneLevelCritical~0 0) (= |ULTIMATE.start_isMethaneLevelCritical_#res| 0) .cse1 .cse3) (and (= ULTIMATE.start_isLowWaterLevel_~tmp~6 0) .cse0 (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) .cse2 .cse3 .cse6) (and .cse0 .cse2 .cse3 .cse6 .cse5))) [2020-10-20 01:42:45,055 INFO L270 CegarLoopResult]: At program point L197-1(lines 192 200) the Hoare annotation is: false [2020-10-20 01:42:45,055 INFO L270 CegarLoopResult]: At program point L197-2(lines 192 200) the Hoare annotation is: false [2020-10-20 01:42:45,055 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-20 01:42:45,055 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 01:42:45,055 INFO L274 CegarLoopResult]: For program point L430(lines 430 447) no Hoare annotation was computed. [2020-10-20 01:42:45,055 INFO L274 CegarLoopResult]: For program point L430-1(lines 430 447) no Hoare annotation was computed. [2020-10-20 01:42:45,055 INFO L274 CegarLoopResult]: For program point L430-2(lines 430 447) no Hoare annotation was computed. [2020-10-20 01:42:45,056 INFO L270 CegarLoopResult]: At program point L265(lines 260 267) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0)) [2020-10-20 01:42:45,056 INFO L270 CegarLoopResult]: At program point L959(lines 1 970) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0)) [2020-10-20 01:42:45,056 INFO L274 CegarLoopResult]: For program point L134(lines 134 141) no Hoare annotation was computed. [2020-10-20 01:42:45,056 INFO L277 CegarLoopResult]: At program point L134-1(lines 134 141) the Hoare annotation is: true [2020-10-20 01:42:45,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 01:42:45 BoogieIcfgContainer [2020-10-20 01:42:45,087 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 01:42:45,088 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 01:42:45,088 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 01:42:45,088 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 01:42:45,089 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:42:37" (3/4) ... [2020-10-20 01:42:45,093 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 01:42:45,135 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2020-10-20 01:42:45,137 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-10-20 01:42:45,139 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-10-20 01:42:45,140 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-10-20 01:42:45,141 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-20 01:42:45,142 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 01:42:45,143 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 01:42:45,187 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((1 == systemActive && methaneLevelCritical == 0) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || ((((((tmp == 0 && 1 == systemActive) && methaneLevelCritical == 0) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel)) || (((1 <= pumpRunning && 1 == systemActive) && splverifierCounter == 0) && 1 <= waterLevel)) || ((((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && methAndRunningLastTime == 0) [2020-10-20 01:42:45,187 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || ((((1 <= pumpRunning && 1 == systemActive) && 2 <= waterLevel) && splverifierCounter == 0) && methAndRunningLastTime == 0)) || ((((1 <= pumpRunning && 1 == systemActive) && methaneLevelCritical == 0) && 2 <= waterLevel) && splverifierCounter == 0)) || (((((tmp == 0 && 1 == systemActive) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel)) || ((((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && methAndRunningLastTime == 0) [2020-10-20 01:42:45,189 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || ((((1 <= pumpRunning && 1 == systemActive) && 2 <= waterLevel) && splverifierCounter == 0) && methAndRunningLastTime == 0)) || (((((1 <= pumpRunning && 1 == systemActive) && methaneLevelCritical == 0) && \result == 0) && 2 <= waterLevel) && splverifierCounter == 0)) || (((((tmp == 0 && 1 == systemActive) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel)) || ((((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && methAndRunningLastTime == 0) [2020-10-20 01:42:45,190 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((1 <= pumpRunning && 1 == systemActive) && \result == 0) && splverifierCounter == 0) && 1 <= waterLevel [2020-10-20 01:42:45,194 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) && methAndRunningLastTime == 0) || ((((((tmp == 0 && 1 == systemActive) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1)) || ((((1 == systemActive && methaneLevelCritical == 0) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0)) || ((((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && methAndRunningLastTime == 0) [2020-10-20 01:42:45,194 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((1 <= pumpRunning && 1 == systemActive) && 2 <= waterLevel) && splverifierCounter == 0) && methAndRunningLastTime == 0) || (((((1 == systemActive && \result == 0) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && methAndRunningLastTime == 0)) || ((((1 == systemActive && \result == 0) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0)) || ((((((tmp == 0 && 1 == systemActive) && \result == 0) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) [2020-10-20 01:42:45,197 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((1 <= pumpRunning && 1 <= tmp___0) && tmp == 0) && 1 == systemActive) && \result == 0) && splverifierCounter == 0) && 1 <= \result) && 1 <= waterLevel [2020-10-20 01:42:45,198 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((1 == systemActive && methaneLevelCritical == 0) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || ((((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && methAndRunningLastTime == 0)) || (((((((tmp___0 == 0 && tmp == 0) && 1 == systemActive) && \result == 0) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel)) || (((((tmp___0 == 0 && 1 == systemActive) && \result == 0) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0)) || ((((((tmp___0 == 0 && 1 == systemActive) && \result == 0) && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) && methAndRunningLastTime == 0) [2020-10-20 01:42:45,321 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 01:42:45,321 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 01:42:45,323 INFO L168 Benchmark]: Toolchain (without parser) took 9351.67 ms. Allocated memory was 41.4 MB in the beginning and 112.7 MB in the end (delta: 71.3 MB). Free memory was 19.5 MB in the beginning and 54.6 MB in the end (delta: -35.1 MB). Peak memory consumption was 36.2 MB. Max. memory is 14.3 GB. [2020-10-20 01:42:45,323 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 31.5 MB. Free memory was 8.6 MB in the beginning and 8.6 MB in the end (delta: 47.5 kB). Peak memory consumption was 47.5 kB. Max. memory is 14.3 GB. [2020-10-20 01:42:45,324 INFO L168 Benchmark]: CACSL2BoogieTranslator took 615.37 ms. Allocated memory was 41.4 MB in the beginning and 43.5 MB in the end (delta: 2.1 MB). Free memory was 18.6 MB in the beginning and 25.9 MB in the end (delta: -7.3 MB). Peak memory consumption was 9.9 MB. Max. memory is 14.3 GB. [2020-10-20 01:42:45,324 INFO L168 Benchmark]: Boogie Procedure Inliner took 89.62 ms. Allocated memory is still 43.5 MB. Free memory was 25.9 MB in the beginning and 22.1 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 14.3 GB. [2020-10-20 01:42:45,325 INFO L168 Benchmark]: Boogie Preprocessor took 51.45 ms. Allocated memory is still 43.5 MB. Free memory was 22.1 MB in the beginning and 19.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 14.3 GB. [2020-10-20 01:42:45,325 INFO L168 Benchmark]: RCFGBuilder took 1056.34 ms. Allocated memory was 43.5 MB in the beginning and 47.7 MB in the end (delta: 4.2 MB). Free memory was 19.0 MB in the beginning and 15.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 13.8 MB. Max. memory is 14.3 GB. [2020-10-20 01:42:45,326 INFO L168 Benchmark]: TraceAbstraction took 7294.54 ms. Allocated memory was 47.7 MB in the beginning and 112.7 MB in the end (delta: 65.0 MB). Free memory was 14.6 MB in the beginning and 68.4 MB in the end (delta: -53.7 MB). Peak memory consumption was 61.7 MB. Max. memory is 14.3 GB. [2020-10-20 01:42:45,326 INFO L168 Benchmark]: Witness Printer took 233.18 ms. Allocated memory is still 112.7 MB. Free memory was 68.4 MB in the beginning and 54.6 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 14.3 GB. [2020-10-20 01:42:45,329 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 31.5 MB. Free memory was 8.6 MB in the beginning and 8.6 MB in the end (delta: 47.5 kB). Peak memory consumption was 47.5 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 615.37 ms. Allocated memory was 41.4 MB in the beginning and 43.5 MB in the end (delta: 2.1 MB). Free memory was 18.6 MB in the beginning and 25.9 MB in the end (delta: -7.3 MB). Peak memory consumption was 9.9 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 89.62 ms. Allocated memory is still 43.5 MB. Free memory was 25.9 MB in the beginning and 22.1 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 51.45 ms. Allocated memory is still 43.5 MB. Free memory was 22.1 MB in the beginning and 19.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 14.3 GB. * RCFGBuilder took 1056.34 ms. Allocated memory was 43.5 MB in the beginning and 47.7 MB in the end (delta: 4.2 MB). Free memory was 19.0 MB in the beginning and 15.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 13.8 MB. Max. memory is 14.3 GB. * TraceAbstraction took 7294.54 ms. Allocated memory was 47.7 MB in the beginning and 112.7 MB in the end (delta: 65.0 MB). Free memory was 14.6 MB in the beginning and 68.4 MB in the end (delta: -53.7 MB). Peak memory consumption was 61.7 MB. Max. memory is 14.3 GB. * Witness Printer took 233.18 ms. Allocated memory is still 112.7 MB. Free memory was 68.4 MB in the beginning and 54.6 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 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: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 247]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 192]: Loop Invariant Derived loop invariant: ((((((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || ((((1 <= pumpRunning && 1 == systemActive) && 2 <= waterLevel) && splverifierCounter == 0) && methAndRunningLastTime == 0)) || (((((1 <= pumpRunning && 1 == systemActive) && methaneLevelCritical == 0) && \result == 0) && 2 <= waterLevel) && splverifierCounter == 0)) || (((((tmp == 0 && 1 == systemActive) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel)) || ((((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && methAndRunningLastTime == 0) - InvariantResult [Line: 247]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 542]: Loop Invariant Derived loop invariant: ((((((1 <= pumpRunning && 1 <= tmp___0) && tmp == 0) && 1 == systemActive) && \result == 0) && splverifierCounter == 0) && 1 <= \result) && 1 <= waterLevel - InvariantResult [Line: 307]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 247]: Loop Invariant Derived loop invariant: (((1 <= pumpRunning && 1 == systemActive) && \result == 0) && splverifierCounter == 0) && 1 <= waterLevel - InvariantResult [Line: 542]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 542]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((1 <= pumpRunning && 1 == systemActive) && 2 <= waterLevel) && splverifierCounter == 0) || ((((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && methAndRunningLastTime == 0) - InvariantResult [Line: 260]: Loop Invariant Derived loop invariant: (((waterLevel == 1 && 1 == systemActive) && methaneLevelCritical == 0) && pumpRunning == 0) && methAndRunningLastTime == 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((waterLevel == 1 && 1 == systemActive) && methaneLevelCritical == 0) && pumpRunning == 0) && methAndRunningLastTime == 0 - InvariantResult [Line: 318]: Loop Invariant Derived loop invariant: (((1 <= pumpRunning && 1 == systemActive) && 2 <= waterLevel) && splverifierCounter == 0) || ((((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && methAndRunningLastTime == 0) - InvariantResult [Line: 962]: Loop Invariant Derived loop invariant: (((waterLevel == 1 && 1 == systemActive) && methaneLevelCritical == 0) && pumpRunning == 0) && methAndRunningLastTime == 0 - InvariantResult [Line: 192]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 192]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 124]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 233]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 379]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 523]: Loop Invariant Derived loop invariant: (((((((1 == systemActive && methaneLevelCritical == 0) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || ((((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && methAndRunningLastTime == 0)) || (((((((tmp___0 == 0 && tmp == 0) && 1 == systemActive) && \result == 0) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel)) || (((((tmp___0 == 0 && 1 == systemActive) && \result == 0) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0)) || ((((((tmp___0 == 0 && 1 == systemActive) && \result == 0) && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) && methAndRunningLastTime == 0) - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 233]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 478]: Loop Invariant Derived loop invariant: ((((((1 <= pumpRunning && 1 == systemActive) && 2 <= waterLevel) && splverifierCounter == 0) && methAndRunningLastTime == 0) || (((((1 == systemActive && \result == 0) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && methAndRunningLastTime == 0)) || ((((1 == systemActive && \result == 0) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0)) || ((((((tmp == 0 && 1 == systemActive) && \result == 0) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) - InvariantResult [Line: 523]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 478]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 233]: Loop Invariant Derived loop invariant: (((((((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) && methAndRunningLastTime == 0) || ((((((tmp == 0 && 1 == systemActive) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1)) || ((((1 == systemActive && methaneLevelCritical == 0) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0)) || ((((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && methAndRunningLastTime == 0) - InvariantResult [Line: 523]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 478]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 233]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 523]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 523]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: (((waterLevel == 1 && 1 == systemActive) && methaneLevelCritical == 0) && pumpRunning == 0) && methAndRunningLastTime == 0 - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 371]: Loop Invariant Derived loop invariant: ((((((1 == systemActive && methaneLevelCritical == 0) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || ((((((tmp == 0 && 1 == systemActive) && methaneLevelCritical == 0) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel)) || (((1 <= pumpRunning && 1 == systemActive) && splverifierCounter == 0) && 1 <= waterLevel)) || ((((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && methAndRunningLastTime == 0) - InvariantResult [Line: 371]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 328]: Loop Invariant Derived loop invariant: (((1 <= pumpRunning && 1 == systemActive) && 2 <= waterLevel) && splverifierCounter == 0) || ((((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && methAndRunningLastTime == 0) - InvariantResult [Line: 371]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 233]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 379]: Loop Invariant Derived loop invariant: ((((((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || ((((1 <= pumpRunning && 1 == systemActive) && 2 <= waterLevel) && splverifierCounter == 0) && methAndRunningLastTime == 0)) || ((((1 <= pumpRunning && 1 == systemActive) && methaneLevelCritical == 0) && 2 <= waterLevel) && splverifierCounter == 0)) || (((((tmp == 0 && 1 == systemActive) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel)) || ((((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && methAndRunningLastTime == 0) - InvariantResult [Line: 233]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 379]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 523]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 124 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.6s, OverallIterations: 13, TraceHistogramMax: 2, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1243 SDtfs, 1237 SDslu, 1629 SDs, 0 SdLazy, 207 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 184 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=234occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 13 MinimizatonAttempts, 735 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 43 LocationsWithAnnotation, 43 PreInvPairs, 156 NumberOfFragments, 703 HoareAnnotationTreeSize, 43 FomulaSimplifications, 143626 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 43 FomulaSimplificationsInter, 20760 FormulaSimplificationTreeSizeReductionInter, 2.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 574 NumberOfCodeBlocks, 574 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 559 ConstructedInterpolants, 0 QuantifiedInterpolants, 44857 SizeOfPredicates, 5 NumberOfNonLiveVariables, 886 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 15 InterpolantComputations, 13 PerfectInterpolantSequences, 80/99 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...