./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product37.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e153551f-9838-42a1-a701-103028054789/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e153551f-9838-42a1-a701-103028054789/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e153551f-9838-42a1-a701-103028054789/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e153551f-9838-42a1-a701-103028054789/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product37.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e153551f-9838-42a1-a701-103028054789/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e153551f-9838-42a1-a701-103028054789/bin/utaipan-Q6hlc19bkW --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 29e70cf9c9b1d0bd005d907ed1d78af9dd0d19752a19f66dfee72f35dd243fc7 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 15:29:45,680 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:29:45,683 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:29:45,709 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:29:45,710 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:29:45,711 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:29:45,712 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:29:45,714 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:29:45,717 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:29:45,718 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:29:45,719 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:29:45,720 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:29:45,721 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:29:45,722 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:29:45,723 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:29:45,725 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:29:45,726 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:29:45,727 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:29:45,729 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:29:45,732 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:29:45,734 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:29:45,735 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:29:45,737 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:29:45,738 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:29:45,742 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:29:45,742 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:29:45,743 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:29:45,744 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:29:45,745 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:29:45,746 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:29:45,746 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:29:45,747 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:29:45,748 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:29:45,749 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:29:45,751 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:29:45,751 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:29:45,752 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:29:45,752 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:29:45,753 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:29:45,754 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:29:45,755 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:29:45,756 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e153551f-9838-42a1-a701-103028054789/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 15:29:45,781 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:29:45,782 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:29:45,782 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:29:45,783 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:29:45,783 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:29:45,784 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:29:45,784 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:29:45,784 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:29:45,785 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:29:45,785 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:29:45,785 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:29:45,808 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:29:45,808 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:29:45,808 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:29:45,808 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:29:45,809 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:29:45,809 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:29:45,809 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:29:45,810 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:29:45,810 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 15:29:45,811 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:29:45,812 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 15:29:45,812 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:29:45,813 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:29:45,813 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:29:45,813 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:29:45,813 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 15:29:45,813 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:29:45,814 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:29:45,814 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:29:45,814 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:29:45,814 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:29:45,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:29:45,815 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:29:45,815 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:29:45,815 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:29:45,815 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:29:45,816 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:29:45,816 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:29:45,816 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:29:45,816 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:29:45,816 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e153551f-9838-42a1-a701-103028054789/bin/utaipan-Q6hlc19bkW/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e153551f-9838-42a1-a701-103028054789/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29e70cf9c9b1d0bd005d907ed1d78af9dd0d19752a19f66dfee72f35dd243fc7 [2022-11-23 15:29:46,166 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:29:46,203 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:29:46,209 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:29:46,210 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:29:46,212 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:29:46,213 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e153551f-9838-42a1-a701-103028054789/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/product-lines/minepump_spec3_product37.cil.c [2022-11-23 15:29:49,997 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:29:50,292 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:29:50,293 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e153551f-9838-42a1-a701-103028054789/sv-benchmarks/c/product-lines/minepump_spec3_product37.cil.c [2022-11-23 15:29:50,307 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e153551f-9838-42a1-a701-103028054789/bin/utaipan-Q6hlc19bkW/data/6280994f5/bd38a65e652b4a7ebd7433dd06d372f2/FLAGf94b46f6e [2022-11-23 15:29:50,324 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e153551f-9838-42a1-a701-103028054789/bin/utaipan-Q6hlc19bkW/data/6280994f5/bd38a65e652b4a7ebd7433dd06d372f2 [2022-11-23 15:29:50,327 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:29:50,329 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:29:50,331 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:29:50,331 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:29:50,335 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:29:50,336 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:29:50" (1/1) ... [2022-11-23 15:29:50,340 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fb2f33a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:29:50, skipping insertion in model container [2022-11-23 15:29:50,340 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:29:50" (1/1) ... [2022-11-23 15:29:50,350 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:29:50,413 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:29:50,839 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e153551f-9838-42a1-a701-103028054789/sv-benchmarks/c/product-lines/minepump_spec3_product37.cil.c[17206,17219] [2022-11-23 15:29:50,848 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:29:50,860 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:29:50,981 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e153551f-9838-42a1-a701-103028054789/sv-benchmarks/c/product-lines/minepump_spec3_product37.cil.c[17206,17219] [2022-11-23 15:29:50,995 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:29:51,020 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:29:51,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:29:51 WrapperNode [2022-11-23 15:29:51,021 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:29:51,022 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:29:51,023 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:29:51,023 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:29:51,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:29:51" (1/1) ... [2022-11-23 15:29:51,055 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:29:51" (1/1) ... [2022-11-23 15:29:51,095 INFO L138 Inliner]: procedures = 53, calls = 98, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 195 [2022-11-23 15:29:51,096 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:29:51,097 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:29:51,097 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:29:51,097 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:29:51,108 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:29:51" (1/1) ... [2022-11-23 15:29:51,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:29:51" (1/1) ... [2022-11-23 15:29:51,123 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:29:51" (1/1) ... [2022-11-23 15:29:51,126 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:29:51" (1/1) ... [2022-11-23 15:29:51,130 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:29:51" (1/1) ... [2022-11-23 15:29:51,147 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:29:51" (1/1) ... [2022-11-23 15:29:51,149 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:29:51" (1/1) ... [2022-11-23 15:29:51,150 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:29:51" (1/1) ... [2022-11-23 15:29:51,152 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:29:51,157 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:29:51,158 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:29:51,158 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:29:51,159 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:29:51" (1/1) ... [2022-11-23 15:29:51,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:29:51,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e153551f-9838-42a1-a701-103028054789/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:29:51,192 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e153551f-9838-42a1-a701-103028054789/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:29:51,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e153551f-9838-42a1-a701-103028054789/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:29:51,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:29:51,254 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-23 15:29:51,254 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-23 15:29:51,254 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-23 15:29:51,254 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-23 15:29:51,255 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-23 15:29:51,255 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-23 15:29:51,255 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-23 15:29:51,255 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-23 15:29:51,255 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-11-23 15:29:51,256 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-11-23 15:29:51,256 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-23 15:29:51,256 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-23 15:29:51,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:29:51,257 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-23 15:29:51,257 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-23 15:29:51,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:29:51,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:29:51,350 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:29:51,351 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:29:51,729 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:29:51,856 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:29:51,857 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 15:29:51,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:29:51 BoogieIcfgContainer [2022-11-23 15:29:51,860 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:29:51,863 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:29:51,863 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:29:51,867 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:29:51,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:29:50" (1/3) ... [2022-11-23 15:29:51,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fcaab24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:29:51, skipping insertion in model container [2022-11-23 15:29:51,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:29:51" (2/3) ... [2022-11-23 15:29:51,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fcaab24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:29:51, skipping insertion in model container [2022-11-23 15:29:51,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:29:51" (3/3) ... [2022-11-23 15:29:51,871 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product37.cil.c [2022-11-23 15:29:51,898 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:29:51,898 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 15:29:51,970 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:29:51,978 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5fe02eb9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:29:51,979 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 15:29:51,984 INFO L276 IsEmpty]: Start isEmpty. Operand has 58 states, 37 states have (on average 1.4324324324324325) internal successors, (53), 45 states have internal predecessors, (53), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-23 15:29:51,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-23 15:29:51,996 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:29:51,997 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:29:51,998 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:29:52,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:29:52,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1845576605, now seen corresponding path program 1 times [2022-11-23 15:29:52,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:29:52,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847818865] [2022-11-23 15:29:52,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:29:52,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:29:52,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:29:52,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:29:52,299 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:29:52,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847818865] [2022-11-23 15:29:52,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847818865] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:29:52,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:29:52,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:29:52,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736747624] [2022-11-23 15:29:52,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:29:52,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 15:29:52,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:29:52,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 15:29:52,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 15:29:52,381 INFO L87 Difference]: Start difference. First operand has 58 states, 37 states have (on average 1.4324324324324325) internal successors, (53), 45 states have internal predecessors, (53), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:29:52,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:29:52,517 INFO L93 Difference]: Finished difference Result 114 states and 155 transitions. [2022-11-23 15:29:52,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 15:29:52,520 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-11-23 15:29:52,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:29:52,533 INFO L225 Difference]: With dead ends: 114 [2022-11-23 15:29:52,534 INFO L226 Difference]: Without dead ends: 53 [2022-11-23 15:29:52,541 INFO L412 NwaCegarLoop]: 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 [2022-11-23 15:29:52,546 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:29:52,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 56 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:29:52,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-11-23 15:29:52,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-11-23 15:29:52,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 41 states have internal predecessors, (45), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-23 15:29:52,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 68 transitions. [2022-11-23 15:29:52,595 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 68 transitions. Word has length 17 [2022-11-23 15:29:52,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:29:52,595 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 68 transitions. [2022-11-23 15:29:52,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:29:52,596 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 68 transitions. [2022-11-23 15:29:52,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-23 15:29:52,598 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:29:52,598 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:29:52,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:29:52,599 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:29:52,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:29:52,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1183358769, now seen corresponding path program 1 times [2022-11-23 15:29:52,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:29:52,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446652132] [2022-11-23 15:29:52,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:29:52,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:29:52,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:29:52,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:29:52,710 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:29:52,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446652132] [2022-11-23 15:29:52,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446652132] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:29:52,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:29:52,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:29:52,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910447993] [2022-11-23 15:29:52,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:29:52,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:29:52,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:29:52,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:29:52,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:29:52,715 INFO L87 Difference]: Start difference. First operand 53 states and 68 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:29:52,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:29:52,764 INFO L93 Difference]: Finished difference Result 83 states and 107 transitions. [2022-11-23 15:29:52,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:29:52,765 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-11-23 15:29:52,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:29:52,766 INFO L225 Difference]: With dead ends: 83 [2022-11-23 15:29:52,767 INFO L226 Difference]: Without dead ends: 45 [2022-11-23 15:29:52,768 INFO L412 NwaCegarLoop]: 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 [2022-11-23 15:29:52,769 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 7 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:29:52,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 75 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:29:52,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-23 15:29:52,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-11-23 15:29:52,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 36 states have internal predecessors, (39), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-23 15:29:52,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 57 transitions. [2022-11-23 15:29:52,780 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 57 transitions. Word has length 18 [2022-11-23 15:29:52,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:29:52,780 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 57 transitions. [2022-11-23 15:29:52,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:29:52,781 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 57 transitions. [2022-11-23 15:29:52,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-23 15:29:52,782 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:29:52,782 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:29:52,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 15:29:52,783 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:29:52,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:29:52,784 INFO L85 PathProgramCache]: Analyzing trace with hash 448709784, now seen corresponding path program 1 times [2022-11-23 15:29:52,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:29:52,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809070704] [2022-11-23 15:29:52,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:29:52,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:29:52,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:29:52,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:29:52,943 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:29:52,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809070704] [2022-11-23 15:29:52,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809070704] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:29:52,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:29:52,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:29:52,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708179758] [2022-11-23 15:29:52,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:29:52,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:29:52,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:29:52,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:29:52,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:29:52,949 INFO L87 Difference]: Start difference. First operand 45 states and 57 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:29:53,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:29:53,010 INFO L93 Difference]: Finished difference Result 88 states and 113 transitions. [2022-11-23 15:29:53,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:29:53,010 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2022-11-23 15:29:53,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:29:53,012 INFO L225 Difference]: With dead ends: 88 [2022-11-23 15:29:53,012 INFO L226 Difference]: Without dead ends: 45 [2022-11-23 15:29:53,013 INFO L412 NwaCegarLoop]: 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 [2022-11-23 15:29:53,014 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 46 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:29:53,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 40 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:29:53,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-23 15:29:53,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-11-23 15:29:53,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 36 states have internal predecessors, (38), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-23 15:29:53,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 56 transitions. [2022-11-23 15:29:53,025 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 56 transitions. Word has length 20 [2022-11-23 15:29:53,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:29:53,026 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 56 transitions. [2022-11-23 15:29:53,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:29:53,026 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 56 transitions. [2022-11-23 15:29:53,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-23 15:29:53,027 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:29:53,028 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-23 15:29:53,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 15:29:53,028 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:29:53,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:29:53,029 INFO L85 PathProgramCache]: Analyzing trace with hash -290321324, now seen corresponding path program 1 times [2022-11-23 15:29:53,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:29:53,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695996119] [2022-11-23 15:29:53,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:29:53,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:29:53,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:29:53,178 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:29:53,179 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:29:53,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695996119] [2022-11-23 15:29:53,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695996119] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:29:53,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [888829163] [2022-11-23 15:29:53,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:29:53,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:29:53,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e153551f-9838-42a1-a701-103028054789/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:29:53,184 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e153551f-9838-42a1-a701-103028054789/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:29:53,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e153551f-9838-42a1-a701-103028054789/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 15:29:53,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:29:53,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-23 15:29:53,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:29:53,610 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 15:29:53,611 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:29:53,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [888829163] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:29:53,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 15:29:53,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2022-11-23 15:29:53,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735943072] [2022-11-23 15:29:53,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:29:53,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 15:29:53,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:29:53,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 15:29:53,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-23 15:29:53,621 INFO L87 Difference]: Start difference. First operand 45 states and 56 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 15:29:54,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:29:54,237 INFO L93 Difference]: Finished difference Result 230 states and 299 transitions. [2022-11-23 15:29:54,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 15:29:54,238 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 27 [2022-11-23 15:29:54,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:29:54,248 INFO L225 Difference]: With dead ends: 230 [2022-11-23 15:29:54,249 INFO L226 Difference]: Without dead ends: 187 [2022-11-23 15:29:54,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-23 15:29:54,260 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 130 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:29:54,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 416 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 15:29:54,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2022-11-23 15:29:54,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 173. [2022-11-23 15:29:54,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 117 states have (on average 1.264957264957265) internal successors, (148), 131 states have internal predecessors, (148), 29 states have call successors, (29), 25 states have call predecessors, (29), 26 states have return successors, (37), 28 states have call predecessors, (37), 29 states have call successors, (37) [2022-11-23 15:29:54,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 214 transitions. [2022-11-23 15:29:54,347 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 214 transitions. Word has length 27 [2022-11-23 15:29:54,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:29:54,348 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 214 transitions. [2022-11-23 15:29:54,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 15:29:54,349 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 214 transitions. [2022-11-23 15:29:54,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-23 15:29:54,358 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:29:54,358 INFO L195 NwaCegarLoop]: 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] [2022-11-23 15:29:54,372 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e153551f-9838-42a1-a701-103028054789/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-23 15:29:54,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e153551f-9838-42a1-a701-103028054789/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:29:54,565 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:29:54,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:29:54,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1365902772, now seen corresponding path program 1 times [2022-11-23 15:29:54,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:29:54,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140980626] [2022-11-23 15:29:54,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:29:54,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:29:54,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:29:55,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:29:55,012 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:29:55,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140980626] [2022-11-23 15:29:55,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140980626] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:29:55,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:29:55,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 15:29:55,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332915138] [2022-11-23 15:29:55,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:29:55,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 15:29:55,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:29:55,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 15:29:55,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-23 15:29:55,028 INFO L87 Difference]: Start difference. First operand 173 states and 214 transitions. Second operand has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 8 states have internal predecessors, (23), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 15:29:55,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:29:55,471 INFO L93 Difference]: Finished difference Result 363 states and 462 transitions. [2022-11-23 15:29:55,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 15:29:55,472 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 8 states have internal predecessors, (23), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 28 [2022-11-23 15:29:55,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:29:55,477 INFO L225 Difference]: With dead ends: 363 [2022-11-23 15:29:55,478 INFO L226 Difference]: Without dead ends: 192 [2022-11-23 15:29:55,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-11-23 15:29:55,483 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 208 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:29:55,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 317 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 15:29:55,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2022-11-23 15:29:55,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 144. [2022-11-23 15:29:55,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 96 states have (on average 1.2708333333333333) internal successors, (122), 105 states have internal predecessors, (122), 23 states have call successors, (23), 21 states have call predecessors, (23), 24 states have return successors, (30), 24 states have call predecessors, (30), 23 states have call successors, (30) [2022-11-23 15:29:55,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 175 transitions. [2022-11-23 15:29:55,528 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 175 transitions. Word has length 28 [2022-11-23 15:29:55,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:29:55,529 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 175 transitions. [2022-11-23 15:29:55,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 8 states have internal predecessors, (23), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 15:29:55,530 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 175 transitions. [2022-11-23 15:29:55,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-23 15:29:55,534 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:29:55,534 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-23 15:29:55,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 15:29:55,534 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:29:55,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:29:55,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1896045993, now seen corresponding path program 1 times [2022-11-23 15:29:55,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:29:55,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575683441] [2022-11-23 15:29:55,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:29:55,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:29:55,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:29:55,646 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:29:55,646 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:29:55,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575683441] [2022-11-23 15:29:55,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575683441] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:29:55,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1604861913] [2022-11-23 15:29:55,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:29:55,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:29:55,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e153551f-9838-42a1-a701-103028054789/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:29:55,648 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e153551f-9838-42a1-a701-103028054789/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:29:55,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e153551f-9838-42a1-a701-103028054789/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 15:29:55,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:29:55,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 15:29:55,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:29:55,791 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 15:29:55,793 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:29:55,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1604861913] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:29:55,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 15:29:55,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2022-11-23 15:29:55,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493812246] [2022-11-23 15:29:55,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:29:55,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:29:55,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:29:55,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:29:55,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-23 15:29:55,796 INFO L87 Difference]: Start difference. First operand 144 states and 175 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-23 15:29:55,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:29:55,873 INFO L93 Difference]: Finished difference Result 284 states and 358 transitions. [2022-11-23 15:29:55,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:29:55,874 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2022-11-23 15:29:55,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:29:55,880 INFO L225 Difference]: With dead ends: 284 [2022-11-23 15:29:55,880 INFO L226 Difference]: Without dead ends: 175 [2022-11-23 15:29:55,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-23 15:29:55,883 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 32 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:29:55,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 80 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:29:55,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2022-11-23 15:29:55,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 173. [2022-11-23 15:29:55,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 118 states have (on average 1.2542372881355932) internal successors, (148), 127 states have internal predecessors, (148), 27 states have call successors, (27), 26 states have call predecessors, (27), 27 states have return successors, (35), 28 states have call predecessors, (35), 27 states have call successors, (35) [2022-11-23 15:29:55,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 210 transitions. [2022-11-23 15:29:55,928 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 210 transitions. Word has length 30 [2022-11-23 15:29:55,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:29:55,928 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 210 transitions. [2022-11-23 15:29:55,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-23 15:29:55,929 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 210 transitions. [2022-11-23 15:29:55,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 15:29:55,931 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:29:55,932 INFO L195 NwaCegarLoop]: 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] [2022-11-23 15:29:55,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e153551f-9838-42a1-a701-103028054789/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 15:29:56,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e153551f-9838-42a1-a701-103028054789/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:29:56,139 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:29:56,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:29:56,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1383824966, now seen corresponding path program 1 times [2022-11-23 15:29:56,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:29:56,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624932351] [2022-11-23 15:29:56,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:29:56,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:29:56,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:29:56,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:29:56,261 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:29:56,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624932351] [2022-11-23 15:29:56,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624932351] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:29:56,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:29:56,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:29:56,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31917689] [2022-11-23 15:29:56,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:29:56,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:29:56,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:29:56,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:29:56,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:29:56,265 INFO L87 Difference]: Start difference. First operand 173 states and 210 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-23 15:29:56,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:29:56,456 INFO L93 Difference]: Finished difference Result 393 states and 484 transitions. [2022-11-23 15:29:56,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:29:56,457 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 31 [2022-11-23 15:29:56,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:29:56,460 INFO L225 Difference]: With dead ends: 393 [2022-11-23 15:29:56,460 INFO L226 Difference]: Without dead ends: 222 [2022-11-23 15:29:56,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:29:56,463 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 94 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:29:56,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 155 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:29:56,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2022-11-23 15:29:56,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 214. [2022-11-23 15:29:56,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 146 states have (on average 1.226027397260274) internal successors, (179), 156 states have internal predecessors, (179), 34 states have call successors, (34), 33 states have call predecessors, (34), 33 states have return successors, (45), 34 states have call predecessors, (45), 34 states have call successors, (45) [2022-11-23 15:29:56,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 258 transitions. [2022-11-23 15:29:56,506 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 258 transitions. Word has length 31 [2022-11-23 15:29:56,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:29:56,509 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 258 transitions. [2022-11-23 15:29:56,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-23 15:29:56,511 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 258 transitions. [2022-11-23 15:29:56,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 15:29:56,512 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:29:56,512 INFO L195 NwaCegarLoop]: 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] [2022-11-23 15:29:56,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 15:29:56,513 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:29:56,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:29:56,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1986974615, now seen corresponding path program 1 times [2022-11-23 15:29:56,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:29:56,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725581612] [2022-11-23 15:29:56,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:29:56,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:29:56,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:29:56,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:29:56,679 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:29:56,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725581612] [2022-11-23 15:29:56,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725581612] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:29:56,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:29:56,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 15:29:56,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150433866] [2022-11-23 15:29:56,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:29:56,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 15:29:56,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:29:56,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 15:29:56,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:29:56,681 INFO L87 Difference]: Start difference. First operand 214 states and 258 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 15:29:56,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:29:56,842 INFO L93 Difference]: Finished difference Result 335 states and 418 transitions. [2022-11-23 15:29:56,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 15:29:56,842 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 31 [2022-11-23 15:29:56,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:29:56,844 INFO L225 Difference]: With dead ends: 335 [2022-11-23 15:29:56,844 INFO L226 Difference]: Without dead ends: 155 [2022-11-23 15:29:56,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-23 15:29:56,846 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 98 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:29:56,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 154 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:29:56,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2022-11-23 15:29:56,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 123. [2022-11-23 15:29:56,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 83 states have (on average 1.1927710843373494) internal successors, (99), 91 states have internal predecessors, (99), 19 states have call successors, (19), 18 states have call predecessors, (19), 20 states have return successors, (22), 20 states have call predecessors, (22), 19 states have call successors, (22) [2022-11-23 15:29:56,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 140 transitions. [2022-11-23 15:29:56,867 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 140 transitions. Word has length 31 [2022-11-23 15:29:56,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:29:56,867 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 140 transitions. [2022-11-23 15:29:56,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 15:29:56,868 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 140 transitions. [2022-11-23 15:29:56,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-23 15:29:56,869 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:29:56,869 INFO L195 NwaCegarLoop]: 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] [2022-11-23 15:29:56,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 15:29:56,870 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:29:56,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:29:56,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1100341989, now seen corresponding path program 1 times [2022-11-23 15:29:56,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:29:56,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391521299] [2022-11-23 15:29:56,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:29:56,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:29:56,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:29:57,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:29:57,195 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:29:57,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391521299] [2022-11-23 15:29:57,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391521299] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:29:57,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:29:57,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 15:29:57,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221871665] [2022-11-23 15:29:57,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:29:57,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 15:29:57,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:29:57,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 15:29:57,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-23 15:29:57,204 INFO L87 Difference]: Start difference. First operand 123 states and 140 transitions. Second operand has 9 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 4 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 15:29:58,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:29:58,061 INFO L93 Difference]: Finished difference Result 375 states and 443 transitions. [2022-11-23 15:29:58,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-23 15:29:58,062 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 4 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 34 [2022-11-23 15:29:58,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:29:58,065 INFO L225 Difference]: With dead ends: 375 [2022-11-23 15:29:58,065 INFO L226 Difference]: Without dead ends: 286 [2022-11-23 15:29:58,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2022-11-23 15:29:58,069 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 245 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-23 15:29:58,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 245 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-23 15:29:58,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2022-11-23 15:29:58,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 232. [2022-11-23 15:29:58,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 160 states have (on average 1.20625) internal successors, (193), 172 states have internal predecessors, (193), 35 states have call successors, (35), 33 states have call predecessors, (35), 36 states have return successors, (41), 35 states have call predecessors, (41), 35 states have call successors, (41) [2022-11-23 15:29:58,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 269 transitions. [2022-11-23 15:29:58,121 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 269 transitions. Word has length 34 [2022-11-23 15:29:58,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:29:58,122 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 269 transitions. [2022-11-23 15:29:58,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 4 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 15:29:58,123 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 269 transitions. [2022-11-23 15:29:58,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-23 15:29:58,125 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:29:58,126 INFO L195 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:29:58,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 15:29:58,126 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:29:58,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:29:58,127 INFO L85 PathProgramCache]: Analyzing trace with hash -414029849, now seen corresponding path program 1 times [2022-11-23 15:29:58,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:29:58,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284116253] [2022-11-23 15:29:58,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:29:58,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:29:58,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:29:58,278 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-23 15:29:58,278 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:29:58,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284116253] [2022-11-23 15:29:58,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284116253] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:29:58,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1188863154] [2022-11-23 15:29:58,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:29:58,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:29:58,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e153551f-9838-42a1-a701-103028054789/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:29:58,281 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e153551f-9838-42a1-a701-103028054789/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:29:58,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e153551f-9838-42a1-a701-103028054789/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 15:29:58,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:29:58,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-23 15:29:58,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:29:58,813 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-23 15:29:58,813 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:29:59,342 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-23 15:29:59,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1188863154] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:29:59,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1571349938] [2022-11-23 15:29:59,369 INFO L159 IcfgInterpreter]: Started Sifa with 37 locations of interest [2022-11-23 15:29:59,369 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:29:59,373 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:29:59,380 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:29:59,381 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:30:02,364 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 114 for LOIs [2022-11-23 15:30:02,380 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 119 for LOIs [2022-11-23 15:30:03,297 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 119 for LOIs [2022-11-23 15:30:03,486 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 112 for LOIs [2022-11-23 15:30:03,499 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:30:17,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1571349938] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:30:17,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:30:17,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [7, 9, 8] total 40 [2022-11-23 15:30:17,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795798294] [2022-11-23 15:30:17,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:30:17,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-23 15:30:17,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:30:17,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-23 15:30:17,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=233, Invalid=1327, Unknown=0, NotChecked=0, Total=1560 [2022-11-23 15:30:17,525 INFO L87 Difference]: Start difference. First operand 232 states and 269 transitions. Second operand has 23 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 19 states have internal predecessors, (30), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-23 15:30:24,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:30:24,773 INFO L93 Difference]: Finished difference Result 519 states and 605 transitions. [2022-11-23 15:30:24,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-23 15:30:24,779 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 19 states have internal predecessors, (30), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 55 [2022-11-23 15:30:24,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:30:24,784 INFO L225 Difference]: With dead ends: 519 [2022-11-23 15:30:24,784 INFO L226 Difference]: Without dead ends: 352 [2022-11-23 15:30:24,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 122 SyntacticMatches, 10 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 697 ImplicationChecksByTransitivity, 19.2s TimeCoverageRelationStatistics Valid=365, Invalid=1987, Unknown=0, NotChecked=0, Total=2352 [2022-11-23 15:30:24,786 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 136 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 1093 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 1147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:30:24,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 488 Invalid, 1147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1093 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-23 15:30:24,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2022-11-23 15:30:24,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 326. [2022-11-23 15:30:24,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 226 states have (on average 1.1902654867256637) internal successors, (269), 240 states have internal predecessors, (269), 48 states have call successors, (48), 46 states have call predecessors, (48), 51 states have return successors, (56), 47 states have call predecessors, (56), 48 states have call successors, (56) [2022-11-23 15:30:24,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 373 transitions. [2022-11-23 15:30:24,871 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 373 transitions. Word has length 55 [2022-11-23 15:30:24,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:30:24,872 INFO L495 AbstractCegarLoop]: Abstraction has 326 states and 373 transitions. [2022-11-23 15:30:24,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 19 states have internal predecessors, (30), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-23 15:30:24,872 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 373 transitions. [2022-11-23 15:30:24,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-23 15:30:24,873 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:30:24,874 INFO L195 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:30:24,886 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e153551f-9838-42a1-a701-103028054789/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 15:30:25,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e153551f-9838-42a1-a701-103028054789/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:30:25,080 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:30:25,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:30:25,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1693284199, now seen corresponding path program 1 times [2022-11-23 15:30:25,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:30:25,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367792744] [2022-11-23 15:30:25,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:30:25,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:30:25,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:30:25,230 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-23 15:30:25,231 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:30:25,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367792744] [2022-11-23 15:30:25,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367792744] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:30:25,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1683936054] [2022-11-23 15:30:25,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:30:25,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:30:25,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e153551f-9838-42a1-a701-103028054789/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:30:25,233 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e153551f-9838-42a1-a701-103028054789/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:30:25,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e153551f-9838-42a1-a701-103028054789/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 15:30:25,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:30:25,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 30 conjunts are in the unsatisfiable core [2022-11-23 15:30:25,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:30:25,745 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-23 15:30:25,745 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:30:26,236 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-23 15:30:26,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1683936054] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:30:26,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2121987255] [2022-11-23 15:30:26,248 INFO L159 IcfgInterpreter]: Started Sifa with 37 locations of interest [2022-11-23 15:30:26,248 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:30:26,249 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:30:26,249 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:30:26,249 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:30:28,563 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 31 for LOIs [2022-11-23 15:30:28,567 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 27 for LOIs [2022-11-23 15:30:28,746 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 24 for LOIs [2022-11-23 15:30:28,766 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 50 for LOIs [2022-11-23 15:30:28,776 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:30:32,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2121987255] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:30:32,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:30:32,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [6, 12, 11] total 50 [2022-11-23 15:30:32,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492623493] [2022-11-23 15:30:32,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:30:32,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-23 15:30:32,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:30:32,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-23 15:30:32,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=354, Invalid=2096, Unknown=0, NotChecked=0, Total=2450 [2022-11-23 15:30:32,193 INFO L87 Difference]: Start difference. First operand 326 states and 373 transitions. Second operand has 28 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 22 states have internal predecessors, (30), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-23 15:30:37,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:30:37,910 INFO L93 Difference]: Finished difference Result 653 states and 765 transitions. [2022-11-23 15:30:37,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-11-23 15:30:37,916 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 22 states have internal predecessors, (30), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 56 [2022-11-23 15:30:37,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:30:37,924 INFO L225 Difference]: With dead ends: 653 [2022-11-23 15:30:37,925 INFO L226 Difference]: Without dead ends: 488 [2022-11-23 15:30:37,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 123 SyntacticMatches, 1 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1453 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=664, Invalid=4306, Unknown=0, NotChecked=0, Total=4970 [2022-11-23 15:30:37,932 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 274 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 1419 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 1559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 1419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-23 15:30:37,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 493 Invalid, 1559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 1419 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-23 15:30:37,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2022-11-23 15:30:38,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 463. [2022-11-23 15:30:38,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 323 states have (on average 1.1888544891640866) internal successors, (384), 340 states have internal predecessors, (384), 68 states have call successors, (68), 64 states have call predecessors, (68), 71 states have return successors, (80), 67 states have call predecessors, (80), 68 states have call successors, (80) [2022-11-23 15:30:38,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 532 transitions. [2022-11-23 15:30:38,064 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 532 transitions. Word has length 56 [2022-11-23 15:30:38,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:30:38,065 INFO L495 AbstractCegarLoop]: Abstraction has 463 states and 532 transitions. [2022-11-23 15:30:38,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 22 states have internal predecessors, (30), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-23 15:30:38,065 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 532 transitions. [2022-11-23 15:30:38,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-23 15:30:38,067 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:30:38,067 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-11-23 15:30:38,079 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e153551f-9838-42a1-a701-103028054789/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-23 15:30:38,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e153551f-9838-42a1-a701-103028054789/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:30:38,274 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:30:38,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:30:38,274 INFO L85 PathProgramCache]: Analyzing trace with hash 120249934, now seen corresponding path program 1 times [2022-11-23 15:30:38,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:30:38,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034528162] [2022-11-23 15:30:38,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:30:38,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:30:38,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:30:38,520 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-23 15:30:38,520 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:30:38,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034528162] [2022-11-23 15:30:38,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034528162] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:30:38,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1971061434] [2022-11-23 15:30:38,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:30:38,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:30:38,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e153551f-9838-42a1-a701-103028054789/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:30:38,523 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e153551f-9838-42a1-a701-103028054789/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:30:38,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e153551f-9838-42a1-a701-103028054789/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-23 15:30:38,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:30:38,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-23 15:30:38,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:30:38,706 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-23 15:30:38,706 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:30:38,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1971061434] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:30:38,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 15:30:38,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11] total 14 [2022-11-23 15:30:38,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077885205] [2022-11-23 15:30:38,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:30:38,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 15:30:38,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:30:38,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 15:30:38,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-11-23 15:30:38,713 INFO L87 Difference]: Start difference. First operand 463 states and 532 transitions. Second operand has 9 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-23 15:30:39,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:30:39,162 INFO L93 Difference]: Finished difference Result 762 states and 894 transitions. [2022-11-23 15:30:39,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 15:30:39,163 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 58 [2022-11-23 15:30:39,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:30:39,167 INFO L225 Difference]: With dead ends: 762 [2022-11-23 15:30:39,168 INFO L226 Difference]: Without dead ends: 597 [2022-11-23 15:30:39,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2022-11-23 15:30:39,169 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 54 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:30:39,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 409 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 15:30:39,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2022-11-23 15:30:39,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 565. [2022-11-23 15:30:39,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 395 states have (on average 1.169620253164557) internal successors, (462), 413 states have internal predecessors, (462), 83 states have call successors, (83), 78 states have call predecessors, (83), 86 states have return successors, (99), 82 states have call predecessors, (99), 83 states have call successors, (99) [2022-11-23 15:30:39,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 644 transitions. [2022-11-23 15:30:39,322 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 644 transitions. Word has length 58 [2022-11-23 15:30:39,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:30:39,323 INFO L495 AbstractCegarLoop]: Abstraction has 565 states and 644 transitions. [2022-11-23 15:30:39,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-23 15:30:39,323 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 644 transitions. [2022-11-23 15:30:39,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-23 15:30:39,325 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:30:39,325 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 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] [2022-11-23 15:30:39,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e153551f-9838-42a1-a701-103028054789/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-23 15:30:39,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e153551f-9838-42a1-a701-103028054789/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-23 15:30:39,534 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:30:39,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:30:39,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1222895001, now seen corresponding path program 1 times [2022-11-23 15:30:39,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:30:39,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925755077] [2022-11-23 15:30:39,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:30:39,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:30:39,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:30:39,645 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-23 15:30:39,645 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:30:39,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925755077] [2022-11-23 15:30:39,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925755077] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:30:39,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1231703617] [2022-11-23 15:30:39,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:30:39,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:30:39,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e153551f-9838-42a1-a701-103028054789/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:30:39,648 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e153551f-9838-42a1-a701-103028054789/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:30:39,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e153551f-9838-42a1-a701-103028054789/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-23 15:30:39,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:30:39,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-23 15:30:39,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:30:39,876 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-23 15:30:39,876 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:30:39,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1231703617] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:30:39,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 15:30:39,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2022-11-23 15:30:39,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650826366] [2022-11-23 15:30:39,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:30:39,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:30:39,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:30:39,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:30:39,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-23 15:30:39,879 INFO L87 Difference]: Start difference. First operand 565 states and 644 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-23 15:30:40,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:30:40,195 INFO L93 Difference]: Finished difference Result 987 states and 1141 transitions. [2022-11-23 15:30:40,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 15:30:40,196 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 62 [2022-11-23 15:30:40,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:30:40,197 INFO L225 Difference]: With dead ends: 987 [2022-11-23 15:30:40,197 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 15:30:40,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-11-23 15:30:40,201 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 44 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:30:40,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 176 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:30:40,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 15:30:40,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 15:30:40,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:30:40,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 15:30:40,204 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 62 [2022-11-23 15:30:40,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:30:40,204 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 15:30:40,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-23 15:30:40,205 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 15:30:40,205 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 15:30:40,208 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 15:30:40,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e153551f-9838-42a1-a701-103028054789/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-23 15:30:40,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e153551f-9838-42a1-a701-103028054789/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-23 15:30:40,419 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-23 15:31:00,344 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 555 561) no Hoare annotation was computed. [2022-11-23 15:31:00,345 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 555 561) the Hoare annotation is: true [2022-11-23 15:31:00,346 INFO L895 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 798 809) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (or (not (= (select |#length| 12) 25)) (not (= (select .cse0 0) 48)) (not (= |#NULL.offset| 0)) (not (= 9 (select |#length| 11))) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= 9 (select |#length| 5))) (not (= 30 (select |#length| 7))) (not (= ~pumpRunning~0 0)) (not (= 31 (select |#length| 2))) (not (= (select |#valid| 12) 1)) (not (= 2 (select |#length| 1))) (not (= 9 (select |#length| 14))) (= ~methaneLevelCritical~0 0) (not (= 1 ~systemActive~0)) (not (= (select |#length| 15) 25)) (not (= (select |#valid| 6) 1)) (not (< 0 |#StackHeapBarrier|)) (not (= (select |#valid| 3) 1)) (not (= ~head~0.offset 0)) (not (<= 2 ~waterLevel~0)) (not (= (select |#valid| 11) 1)) (not (= (select |#length| 9) 21)) (not (= 30 (select |#length| 10))) (not (= (select |#valid| 15) 1)) (not (= (select |#length| 6) 21)) (not (= 1 (select |#valid| 5))) (not (= (select |#length| 8) 9)) (not (<= ~waterLevel~0 2147483647)) (not (= (select |#length| 3) 12)) (not (= (select |#valid| 0) 0)) (not (= (select .cse0 1) 0)) (not (= (select |#valid| 1) 1)) (not (= (select |#valid| 8) 1)) (not (= 30 (select |#length| 13))) (not (= (select |#valid| 4) 1)) (not (= |#NULL.base| 0)) (not (= (select |#valid| 7) 1)) (not (= (select |#valid| 10) 1)) (not (= (select |#valid| 14) 1)) (not (= (select |#valid| 13) 1)) (not (= 30 (select |#length| 4))) (not (= (select |#valid| 2) 1)) (not (= (select |#valid| 9) 1)) (not (= ~head~0.base 0)) (not (= ~cleanupTimeShifts~0 4)))) [2022-11-23 15:31:00,346 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 798 809) no Hoare annotation was computed. [2022-11-23 15:31:00,346 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 810 818) the Hoare annotation is: true [2022-11-23 15:31:00,346 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 810 818) no Hoare annotation was computed. [2022-11-23 15:31:00,347 INFO L899 garLoopResultBuilder]: For program point L894(lines 894 900) no Hoare annotation was computed. [2022-11-23 15:31:00,347 INFO L895 garLoopResultBuilder]: At program point L890(lines 890 903) the Hoare annotation is: (let ((.cse13 (= ~pumpRunning~0 0)) (.cse14 (<= |timeShift___utac_acc__Specification3_spec__1_~tmp___0~2#1| 1)) (.cse15 (<= ~waterLevel~0 1)) (.cse12 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse20 (= |#NULL.offset| 0))) (let ((.cse5 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse13 .cse14 .cse15 .cse12 .cse20)) (.cse17 (= ~pumpRunning~0 1)) (.cse3 (not (< |old(~waterLevel~0)| 2))) (.cse16 (= ~waterLevel~0 1)) (.cse1 (not .cse20)) (.cse11 (not (<= |old(~waterLevel~0)| 2147483647))) (.cse4 (not (= ~head~0.offset 0))) (.cse18 (not (= |old(~pumpRunning~0)| 1))) (.cse6 (not (= |#NULL.base| 0))) (.cse7 (not (<= 0 |#StackHeapBarrier|))) (.cse8 (not (<= 0 (+ |old(~waterLevel~0)| 2147483648)))) (.cse9 (not (= ~head~0.base 0))) (.cse10 (not (= ~cleanupTimeShifts~0 4))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse19 (= ~methaneLevelCritical~0 0)) (.cse2 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10) (or .cse0 .cse1 .cse2 .cse11 .cse4 .cse5 .cse6 (and (= |timeShift_getWaterLevel_~retValue_acc~8#1| ~waterLevel~0) (= |timeShift_getWaterLevel_#res#1| |timeShift___utac_acc__Specification3_spec__1_~tmp___0~2#1|) .cse12 (= ~methaneLevelCritical~0 |timeShift___utac_acc__Specification3_spec__1_~tmp~8#1|) (= |timeShift_getWaterLevel_~retValue_acc~8#1| |timeShift_getWaterLevel_#res#1|)) .cse7 .cse8 .cse9 .cse10) (or (and .cse13 .cse14 .cse15) .cse0 (and (not .cse16) .cse14 .cse15 .cse17) .cse2 .cse3) (or .cse2 .cse18 (and (= |timeShift_processEnvironment_~tmp~5#1| ~methaneLevelCritical~0) .cse17)) (or .cse19 .cse2 .cse18) (or .cse0 .cse2 (and (<= 2 ~waterLevel~0) .cse17) (not (<= 2 |old(~waterLevel~0)|))) (or (and .cse14 .cse15) .cse2 .cse3 .cse18) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse2 .cse16) (or .cse1 .cse2 .cse11 .cse4 .cse18 .cse6 .cse7 (and (or (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) (< 0 |old(~waterLevel~0)|)) (and (<= |old(~waterLevel~0)| 0) .cse12)) (= |timeShift_isMethaneAlarm_~retValue_acc~4#1| |timeShift_isMethaneAlarm_#res#1|) (= |timeShift_processEnvironment_~tmp~5#1| |timeShift_isMethaneAlarm_#res#1|)) .cse8 .cse9 .cse10) (or .cse0 .cse19 .cse2)))) [2022-11-23 15:31:00,348 INFO L895 garLoopResultBuilder]: At program point L890-1(lines 875 907) the Hoare annotation is: (let ((.cse1 (= ~methaneLevelCritical~0 0))) (let ((.cse12 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse29 (= ~head~0.offset 0)) (.cse30 (= |#NULL.offset| 0)) (.cse28 (= ~waterLevel~0 1)) (.cse25 (= ~pumpRunning~0 0)) (.cse26 (= 1 ~systemActive~0)) (.cse15 (not .cse1)) (.cse27 (= |timeShift_processEnvironment_~tmp~5#1| ~methaneLevelCritical~0)) (.cse3 (not (= |timeShift___utac_acc__Specification3_spec__1_~tmp~8#1| 0)))) (let ((.cse8 (not (<= |old(~waterLevel~0)| 2147483647))) (.cse6 (< ~waterLevel~0 2)) (.cse22 (and .cse25 .cse26 .cse15 .cse27 .cse3)) (.cse5 (not (= |old(~pumpRunning~0)| 1))) (.cse23 (not .cse28)) (.cse24 (= ~pumpRunning~0 1)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (not .cse30)) (.cse2 (not .cse26)) (.cse4 (not (< |old(~waterLevel~0)| 2))) (.cse9 (not .cse29)) (.cse16 (not (= |#NULL.base| 0))) (.cse17 (not (<= 0 |#StackHeapBarrier|))) (.cse18 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse25 .cse29 .cse12 .cse30)) (.cse19 (not (<= 0 (+ |old(~waterLevel~0)| 2147483648)))) (.cse20 (not (= ~head~0.base 0))) (.cse21 (not (= ~cleanupTimeShifts~0 4)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse2 .cse4 .cse5 .cse6) (let ((.cse10 (= |timeShift_getWaterLevel_~retValue_acc~8#1| ~waterLevel~0)) (.cse11 (= |timeShift_getWaterLevel_#res#1| |timeShift___utac_acc__Specification3_spec__1_~tmp___0~2#1|)) (.cse13 (= ~methaneLevelCritical~0 |timeShift___utac_acc__Specification3_spec__1_~tmp~8#1|)) (.cse14 (= |timeShift_getWaterLevel_~retValue_acc~8#1| |timeShift_getWaterLevel_#res#1|))) (or .cse0 .cse7 .cse2 .cse8 .cse9 (and (= |timeShift_isPumpRunning_#res#1| |timeShift_isPumpRunning_~retValue_acc~5#1|) .cse10 .cse11 (= ~pumpRunning~0 |timeShift_isPumpRunning_~retValue_acc~5#1|) .cse12 (= |timeShift_isPumpRunning_#res#1| |timeShift___utac_acc__Specification3_spec__1_~tmp___1~1#1|) .cse13 .cse14) .cse15 .cse16 (and .cse10 .cse11 (not (= 2 |timeShift___utac_acc__Specification3_spec__1_~tmp___0~2#1|)) .cse12 .cse13 .cse14) .cse17 .cse18 .cse19 .cse20 .cse21)) (or .cse7 .cse2 .cse8 .cse9 .cse15 .cse5 .cse16 .cse17 (and (or (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) (< 0 |old(~waterLevel~0)|)) (and (<= |old(~waterLevel~0)| 0) .cse12)) (= |timeShift_isMethaneAlarm_~retValue_acc~4#1| |timeShift_isMethaneAlarm_#res#1|) (= |timeShift_processEnvironment_~tmp~5#1| |timeShift_isMethaneAlarm_#res#1|)) .cse19 .cse20 .cse21) (or .cse22 .cse1 .cse2 .cse5) (or (and .cse23 .cse6 .cse24) .cse0 .cse2 .cse4 (and .cse25 .cse26 .cse6)) (or .cse22 .cse2 .cse5 (and .cse27 .cse24)) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse2 .cse28) (or .cse0 .cse2 (and .cse23 (<= 2 ~waterLevel~0) .cse24) (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 .cse7 .cse2 .cse4 .cse9 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21))))) [2022-11-23 15:31:00,348 INFO L899 garLoopResultBuilder]: For program point L535-1(lines 534 553) no Hoare annotation was computed. [2022-11-23 15:31:00,349 INFO L895 garLoopResultBuilder]: At program point L597(lines 597 605) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (and (= |timeShift_processEnvironment_~tmp~5#1| ~methaneLevelCritical~0) (= ~pumpRunning~0 1))) (or (not (= |#NULL.offset| 0)) .cse0 (not (<= |old(~waterLevel~0)| 2147483647)) (not (= ~head~0.offset 0)) (not (= ~methaneLevelCritical~0 0)) .cse1 (not (= |#NULL.base| 0)) (not (<= 0 |#StackHeapBarrier|)) (and (or (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) (< 0 |old(~waterLevel~0)|)) (and (<= |old(~waterLevel~0)| 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (= |timeShift_isMethaneAlarm_~retValue_acc~4#1| |timeShift_isMethaneAlarm_#res#1|) (= |timeShift_processEnvironment_~tmp~5#1| |timeShift_isMethaneAlarm_#res#1|)) (not (<= 0 (+ |old(~waterLevel~0)| 2147483648))) (not (= ~head~0.base 0)) (not (= ~cleanupTimeShifts~0 4))) (or .cse0 (not (< |old(~waterLevel~0)| 2)) (<= ~waterLevel~0 1) .cse1) (or (not (= |old(~pumpRunning~0)| 0)) .cse0))) [2022-11-23 15:31:00,350 INFO L895 garLoopResultBuilder]: At program point L882(line 882) the Hoare annotation is: (let ((.cse20 (= ~methaneLevelCritical~0 0))) (let ((.cse7 (= ~pumpRunning~0 0)) (.cse13 (not .cse20)) (.cse2 (= |timeShift_processEnvironment_~tmp~5#1| ~methaneLevelCritical~0))) (let ((.cse3 (= ~pumpRunning~0 1)) (.cse4 (and .cse7 .cse13 .cse2)) (.cse15 (<= 2 |old(~waterLevel~0)|)) (.cse9 (not (= |#NULL.offset| 0))) (.cse11 (not (<= |old(~waterLevel~0)| 2147483647))) (.cse12 (not (= ~head~0.offset 0))) (.cse14 (not (= |#NULL.base| 0))) (.cse16 (not (<= 0 |#StackHeapBarrier|))) (.cse10 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse17 (not (<= 0 (+ |old(~waterLevel~0)| 2147483648)))) (.cse18 (not (= ~head~0.base 0))) (.cse19 (not (= ~cleanupTimeShifts~0 4))) (.cse21 (not (< |old(~waterLevel~0)| 2))) (.cse8 (<= ~waterLevel~0 1)) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse6 (= ~waterLevel~0 1))) (and (or .cse0 .cse1 (and .cse2 .cse3) .cse4) (or .cse5 .cse0 (and (not .cse6) .cse3) (and .cse7 .cse8)) (or .cse5 .cse9 (and .cse7 .cse10) .cse0 .cse11 .cse12 .cse13 .cse14 (and .cse15 .cse10) .cse16 .cse17 .cse18 .cse19) (or .cse20 .cse0 .cse1 .cse4) (or .cse5 .cse0 (<= 2 ~waterLevel~0) (not .cse15)) (or .cse5 .cse0 .cse21 .cse8) (or .cse9 .cse0 .cse11 .cse12 .cse13 .cse1 .cse14 .cse16 (and (or (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) (< 0 |old(~waterLevel~0)|)) (and (<= |old(~waterLevel~0)| 0) .cse10)) (= |timeShift_isMethaneAlarm_~retValue_acc~4#1| |timeShift_isMethaneAlarm_#res#1|) (= |timeShift_processEnvironment_~tmp~5#1| |timeShift_isMethaneAlarm_#res#1|)) .cse17 .cse18 .cse19) (or .cse0 .cse21 .cse8 .cse1) (or .cse5 (not (= |old(~waterLevel~0)| 1)) .cse0 .cse6))))) [2022-11-23 15:31:00,350 INFO L899 garLoopResultBuilder]: For program point L593(lines 593 610) no Hoare annotation was computed. [2022-11-23 15:31:00,350 INFO L899 garLoopResultBuilder]: For program point L882-1(line 882) no Hoare annotation was computed. [2022-11-23 15:31:00,350 INFO L895 garLoopResultBuilder]: At program point L870(line 870) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (= |old(~pumpRunning~0)| 1))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0))) [2022-11-23 15:31:00,351 INFO L895 garLoopResultBuilder]: At program point L635(line 635) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1)))) (and (or .cse0 .cse1 (= ~pumpRunning~0 1)) (or .cse0 (not (< |old(~waterLevel~0)| 2)) (<= ~waterLevel~0 1) .cse1) (or (not (= |old(~pumpRunning~0)| 0)) .cse0) (let ((.cse2 (< 0 |old(~waterLevel~0)|))) (or (not (= |#NULL.offset| 0)) .cse0 (and (not .cse2) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= |old(~waterLevel~0)| 2147483647)) (not (= ~head~0.offset 0)) (not (= ~methaneLevelCritical~0 0)) .cse1 (not (= |#NULL.base| 0)) (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse2) (not (<= 0 |#StackHeapBarrier|)) (not (<= 0 (+ |old(~waterLevel~0)| 2147483648))) (not (= ~head~0.base 0)) (not (= ~cleanupTimeShifts~0 4)))))) [2022-11-23 15:31:00,351 INFO L895 garLoopResultBuilder]: At program point L635-1(line 635) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1)))) (and (or .cse0 (not (< |old(~waterLevel~0)| 2)) (<= ~waterLevel~0 1) .cse1) (or .cse0 (and (= |timeShift_isMethaneAlarm_#t~ret30#1| ~methaneLevelCritical~0) (= ~pumpRunning~0 1)) .cse1) (or (not (= |old(~pumpRunning~0)| 0)) .cse0) (let ((.cse2 (< 0 |old(~waterLevel~0)|))) (or (not (= |#NULL.offset| 0)) .cse0 (and (not .cse2) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= |old(~waterLevel~0)| 2147483647)) (not (= ~head~0.offset 0)) (not (= ~methaneLevelCritical~0 0)) .cse1 (not (= |#NULL.base| 0)) (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse2) (not (<= 0 |#StackHeapBarrier|)) (not (<= 0 (+ |old(~waterLevel~0)| 2147483648))) (not (= ~head~0.base 0)) (not (= ~cleanupTimeShifts~0 4)))))) [2022-11-23 15:31:00,351 INFO L895 garLoopResultBuilder]: At program point L603(line 603) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1)))) (and (or .cse0 .cse1 (and (= |timeShift_processEnvironment_~tmp~5#1| ~methaneLevelCritical~0) (= ~pumpRunning~0 1))) (or (= ~methaneLevelCritical~0 0) .cse0 .cse1) (or .cse0 (not (< |old(~waterLevel~0)| 2)) (<= ~waterLevel~0 1) .cse1) (or (not (= |old(~pumpRunning~0)| 0)) .cse0) (or (not (= |#NULL.offset| 0)) .cse0 (not (<= |old(~waterLevel~0)| 2147483647)) (not (= ~head~0.offset 0)) .cse1 (not (= |#NULL.base| 0)) (not (<= 0 |#StackHeapBarrier|)) (and (or (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) (< 0 |old(~waterLevel~0)|)) (and (<= |old(~waterLevel~0)| 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (= |timeShift_isMethaneAlarm_~retValue_acc~4#1| |timeShift_isMethaneAlarm_#res#1|) (= |timeShift_processEnvironment_~tmp~5#1| |timeShift_isMethaneAlarm_#res#1|)) (not (<= 0 (+ |old(~waterLevel~0)| 2147483648))) (not (= ~head~0.base 0)) (not (= ~cleanupTimeShifts~0 4))))) [2022-11-23 15:31:00,352 INFO L895 garLoopResultBuilder]: At program point L884(lines 884 904) the Hoare annotation is: (let ((.cse1 (= ~methaneLevelCritical~0 0))) (let ((.cse16 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse23 (= ~head~0.offset 0)) (.cse24 (= |#NULL.offset| 0)) (.cse6 (= ~pumpRunning~0 0)) (.cse25 (= 1 ~systemActive~0)) (.cse12 (not .cse1)) (.cse21 (= |timeShift_processEnvironment_~tmp~5#1| ~methaneLevelCritical~0)) (.cse3 (not (= |timeShift___utac_acc__Specification3_spec__1_~tmp~8#1| 0)))) (let ((.cse7 (<= ~waterLevel~0 1)) (.cse20 (and .cse6 .cse25 .cse12 .cse21 .cse3)) (.cse13 (not (= |old(~pumpRunning~0)| 1))) (.cse5 (= ~pumpRunning~0 1)) (.cse4 (= ~waterLevel~0 1)) (.cse10 (not (<= |old(~waterLevel~0)| 2147483647))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse9 (not .cse24)) (.cse2 (not .cse25)) (.cse8 (not (< |old(~waterLevel~0)| 2))) (.cse11 (not .cse23)) (.cse14 (not (= |#NULL.base| 0))) (.cse15 (not (<= 0 |#StackHeapBarrier|))) (.cse22 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse6 .cse23 .cse16 .cse24)) (.cse17 (not (<= 0 (+ |old(~waterLevel~0)| 2147483648)))) (.cse18 (not (= ~head~0.base 0))) (.cse19 (not (= ~cleanupTimeShifts~0 4)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse2 (and (not .cse4) .cse5) (and .cse6 .cse7)) (or .cse0 .cse2 (<= 2 ~waterLevel~0) (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 .cse2 .cse8 .cse7) (or .cse9 .cse2 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 (and (or (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) (< 0 |old(~waterLevel~0)|)) (and (<= |old(~waterLevel~0)| 0) .cse16)) (= |timeShift_isMethaneAlarm_~retValue_acc~4#1| |timeShift_isMethaneAlarm_#res#1|) (= |timeShift_processEnvironment_~tmp~5#1| |timeShift_isMethaneAlarm_#res#1|)) .cse17 .cse18 .cse19) (or .cse2 .cse8 .cse7 .cse13) (or .cse20 .cse1 .cse2 .cse13) (or .cse20 .cse2 .cse13 (and .cse21 .cse5)) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse2 .cse4) (or .cse0 .cse9 .cse2 .cse10 .cse11 (and .cse16 (= ~methaneLevelCritical~0 |timeShift___utac_acc__Specification3_spec__1_~tmp~8#1|)) .cse12 .cse14 .cse15 .cse22 .cse17 .cse18 .cse19) (or .cse0 .cse9 .cse2 .cse8 .cse11 .cse12 .cse14 .cse15 .cse22 .cse17 .cse18 .cse19))))) [2022-11-23 15:31:00,353 INFO L895 garLoopResultBuilder]: At program point L608(line 608) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (= |old(~pumpRunning~0)| 1))) (or (not (= |#NULL.offset| 0)) (not (<= |old(~pumpRunning~0)| 1)) .cse0 (not (<= |old(~waterLevel~0)| 2147483647)) (not (= ~head~0.offset 0)) (not (= ~methaneLevelCritical~0 0)) (not (= |#NULL.base| 0)) (= |old(~waterLevel~0)| ~waterLevel~0) (not (<= 0 |#StackHeapBarrier|)) (not (<= 0 |old(~pumpRunning~0)|)) (not (<= 0 (+ |old(~waterLevel~0)| 2147483648))) (not (= ~head~0.base 0)) (not (= ~cleanupTimeShifts~0 4))) (or .cse1 .cse0 (<= 2 ~waterLevel~0) (not (<= 2 |old(~waterLevel~0)|))) (or .cse1 .cse0 (not (< |old(~waterLevel~0)| 2)) (<= ~waterLevel~0 1)) (or .cse1 (not (= |old(~waterLevel~0)| 1)) .cse0 (= ~waterLevel~0 1)) (or .cse1 (= ~pumpRunning~0 0) .cse0))) [2022-11-23 15:31:00,353 INFO L895 garLoopResultBuilder]: At program point L608-1(lines 589 613) the Hoare annotation is: (let ((.cse20 (= ~methaneLevelCritical~0 0))) (let ((.cse7 (= ~pumpRunning~0 0)) (.cse13 (not .cse20)) (.cse2 (= |timeShift_processEnvironment_~tmp~5#1| ~methaneLevelCritical~0))) (let ((.cse3 (= ~pumpRunning~0 1)) (.cse4 (and .cse7 .cse13 .cse2)) (.cse15 (<= 2 |old(~waterLevel~0)|)) (.cse9 (not (= |#NULL.offset| 0))) (.cse11 (not (<= |old(~waterLevel~0)| 2147483647))) (.cse12 (not (= ~head~0.offset 0))) (.cse14 (not (= |#NULL.base| 0))) (.cse16 (not (<= 0 |#StackHeapBarrier|))) (.cse10 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse17 (not (<= 0 (+ |old(~waterLevel~0)| 2147483648)))) (.cse18 (not (= ~head~0.base 0))) (.cse19 (not (= ~cleanupTimeShifts~0 4))) (.cse21 (not (< |old(~waterLevel~0)| 2))) (.cse8 (<= ~waterLevel~0 1)) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse6 (= ~waterLevel~0 1))) (and (or .cse0 .cse1 (and .cse2 .cse3) .cse4) (or .cse5 .cse0 (and (not .cse6) .cse3) (and .cse7 .cse8)) (or .cse5 .cse9 (and .cse7 .cse10) .cse0 .cse11 .cse12 .cse13 .cse14 (and .cse15 .cse10) .cse16 .cse17 .cse18 .cse19) (or .cse20 .cse0 .cse1 .cse4) (or .cse5 .cse0 (<= 2 ~waterLevel~0) (not .cse15)) (or .cse5 .cse0 .cse21 .cse8) (or .cse9 .cse0 .cse11 .cse12 .cse13 .cse1 .cse14 .cse16 (and (or (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) (< 0 |old(~waterLevel~0)|)) (and (<= |old(~waterLevel~0)| 0) .cse10)) (= |timeShift_isMethaneAlarm_~retValue_acc~4#1| |timeShift_isMethaneAlarm_#res#1|) (= |timeShift_processEnvironment_~tmp~5#1| |timeShift_isMethaneAlarm_#res#1|)) .cse17 .cse18 .cse19) (or .cse0 .cse21 .cse8 .cse1) (or .cse5 (not (= |old(~waterLevel~0)| 1)) .cse0 .cse6))))) [2022-11-23 15:31:00,353 INFO L899 garLoopResultBuilder]: For program point L542-1(lines 542 548) no Hoare annotation was computed. [2022-11-23 15:31:00,354 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 531 554) the Hoare annotation is: (let ((.cse4 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse2 (or .cse4 (= ~waterLevel~0 1))) (.cse3 (not (= |old(~pumpRunning~0)| 1))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (not (= |#NULL.offset| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse6 (not (= ~head~0.offset 0))) (.cse7 (not (= ~methaneLevelCritical~0 0))) (.cse8 (not (= |#NULL.base| 0))) (.cse9 (not (<= 0 |#StackHeapBarrier|))) (.cse10 (not (<= 0 (+ |old(~waterLevel~0)| 2147483648)))) (.cse11 (not (= ~head~0.base 0))) (.cse12 (not (= ~cleanupTimeShifts~0 4)))) (and (or .cse0 .cse1 (and (= ~pumpRunning~0 0) .cse2)) (or .cse1 (and .cse2 (= ~pumpRunning~0 1)) .cse3) (or .cse0 .cse1 .cse4 (not (<= 2 |old(~waterLevel~0)|))) (or .cse5 .cse1 (not (<= |old(~waterLevel~0)| 2147483647)) .cse6 .cse7 .cse3 .cse8 .cse4 .cse9 .cse10 .cse11 .cse12) (or .cse0 .cse5 .cse1 .cse6 .cse7 .cse8 .cse4 .cse9 .cse10 .cse11 .cse12)))) [2022-11-23 15:31:00,354 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 531 554) no Hoare annotation was computed. [2022-11-23 15:31:00,354 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 870) no Hoare annotation was computed. [2022-11-23 15:31:00,354 INFO L902 garLoopResultBuilder]: At program point L66-1(lines 66 70) the Hoare annotation is: true [2022-11-23 15:31:00,354 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 52 81) no Hoare annotation was computed. [2022-11-23 15:31:00,354 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 52 81) the Hoare annotation is: true [2022-11-23 15:31:00,355 INFO L902 garLoopResultBuilder]: At program point L62-2(lines 62 76) the Hoare annotation is: true [2022-11-23 15:31:00,355 INFO L902 garLoopResultBuilder]: At program point L58(line 58) the Hoare annotation is: true [2022-11-23 15:31:00,355 INFO L899 garLoopResultBuilder]: For program point L58-1(line 58) no Hoare annotation was computed. [2022-11-23 15:31:00,355 INFO L902 garLoopResultBuilder]: At program point L77(lines 52 81) the Hoare annotation is: true [2022-11-23 15:31:00,355 INFO L899 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2022-11-23 15:31:00,355 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2022-11-23 15:31:00,356 INFO L895 garLoopResultBuilder]: At program point L762(lines 715 763) the Hoare annotation is: false [2022-11-23 15:31:00,356 INFO L899 garLoopResultBuilder]: For program point L717(lines 716 761) no Hoare annotation was computed. [2022-11-23 15:31:00,356 INFO L895 garLoopResultBuilder]: At program point L738(line 738) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1) (and .cse0 .cse1 (= ~pumpRunning~0 1)))) [2022-11-23 15:31:00,356 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-23 15:31:00,356 INFO L895 garLoopResultBuilder]: At program point L759(lines 716 761) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 (< ~waterLevel~0 2)) (and .cse1 .cse2 (= ~pumpRunning~0 1)) (and .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) .cse2))) [2022-11-23 15:31:00,356 INFO L899 garLoopResultBuilder]: For program point L726(lines 726 732) no Hoare annotation was computed. [2022-11-23 15:31:00,357 INFO L899 garLoopResultBuilder]: For program point L726-1(lines 726 732) no Hoare annotation was computed. [2022-11-23 15:31:00,357 INFO L895 garLoopResultBuilder]: At program point L140(lines 140 147) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= (select |#length| 15) 25) (= 9 (select |#length| 5)) (= (select |#length| 9) 21) (= 30 (select |#length| 7)) (= 1 (select |#valid| 5)) (= (select |#length| 3) 12) (= (select |#valid| 15) 1) (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| |ULTIMATE.start_main_~tmp~0#1|) (= 1 |ULTIMATE.start_valid_product_~retValue_acc~11#1|) (= (select |#valid| 9) 1) (= (select |#length| 12) 25) (= (select |#valid| 11) 1) (= ~methaneLevelCritical~0 0) (= 30 (select |#length| 4)) (= 31 (select |#length| 2)) (= ~head~0.offset 0) (= 2 (select |#length| 1)) (= (select |#length| 8) 9) (= (select |#valid| 3) 1) (= (select |#valid| 7) 1) (= |ULTIMATE.start_valid_product_#res#1| |ULTIMATE.start_valid_product_~retValue_acc~11#1|) (= 30 (select |#length| 13)) (= 1 ~systemActive~0) (= 30 (select |#length| 10)) (= (select |#valid| 12) 1) (= (select |#valid| 4) 1) (= (select |#valid| 1) 1) (= (select |#length| 6) 21) (= (select |#valid| 14) 1) (= 9 (select |#length| 14)) (= (select |#valid| 0) 0) (= ~head~0.base 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= 9 (select |#length| 11)) (= ~waterLevel~0 1) (= (select .cse0 0) 48) (= (select |#valid| 6) 1) (= (select .cse0 1) 0) (= (select |#valid| 10) 1) (= (select |#valid| 8) 1) (= (select |#valid| 13) 1) (< 0 |#StackHeapBarrier|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))) [2022-11-23 15:31:00,357 INFO L902 garLoopResultBuilder]: At program point L140-2(lines 140 147) the Hoare annotation is: true [2022-11-23 15:31:00,357 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-23 15:31:00,358 INFO L895 garLoopResultBuilder]: At program point L752-2(lines 746 757) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1) (and .cse0 .cse1 (= ~pumpRunning~0 1)))) [2022-11-23 15:31:00,358 INFO L899 garLoopResultBuilder]: For program point L736(lines 736 742) no Hoare annotation was computed. [2022-11-23 15:31:00,358 INFO L899 garLoopResultBuilder]: For program point L736-1(lines 736 742) no Hoare annotation was computed. [2022-11-23 15:31:00,358 INFO L902 garLoopResultBuilder]: At program point L765(lines 706 769) the Hoare annotation is: true [2022-11-23 15:31:00,358 INFO L895 garLoopResultBuilder]: At program point L728(line 728) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 (< ~waterLevel~0 2)) (and .cse1 .cse2 (= ~pumpRunning~0 1)) (and .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) .cse2))) [2022-11-23 15:31:00,359 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 563 587) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (= |old(~pumpRunning~0)| 1)) (= ~pumpRunning~0 1)) (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0))) [2022-11-23 15:31:00,359 INFO L895 garLoopResultBuilder]: At program point L577(line 577) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (= |old(~pumpRunning~0)| 1))) (or .cse1 (not (= |#NULL.offset| 0)) .cse0 (not (= ~head~0.offset 0)) (not (= ~methaneLevelCritical~0 0)) (not (= |#NULL.base| 0)) (not (<= 0 |#StackHeapBarrier|)) (and (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_~retValue_acc~9#1| |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1|) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~retValue_acc~6#1| |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~0#1|) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_~retValue_acc~9#1| 1) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~retValue_acc~6#1| |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1|) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~0#1| 0) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~6#1|) (= |processEnvironment__wrappee__highWaterSensor_~tmp~4#1| |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1|)) (not (= ~head~0.base 0)) (not (= ~cleanupTimeShifts~0 4))) (or .cse1 .cse0 (and (<= 0 |processEnvironment__wrappee__highWaterSensor_~tmp~4#1|) (= ~pumpRunning~0 0) (<= ~waterLevel~0 1) (or (not (= ~waterLevel~0 1)) (= |processEnvironment__wrappee__highWaterSensor_~tmp~4#1| 0)))))) [2022-11-23 15:31:00,359 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 563 587) no Hoare annotation was computed. [2022-11-23 15:31:00,360 INFO L895 garLoopResultBuilder]: At program point L571(lines 571 579) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (= |old(~pumpRunning~0)| 1))) (or .cse1 (not (= |#NULL.offset| 0)) .cse0 (not (= ~head~0.offset 0)) (not (= ~methaneLevelCritical~0 0)) (and (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~retValue_acc~6#1| |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~0#1|) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~retValue_acc~6#1| |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1|) (or (and (not (< ~waterLevel~0 2)) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_~retValue_acc~9#1| 0)) (and (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_~retValue_acc~9#1| |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1|) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_~retValue_acc~9#1| 1))) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~6#1|) (= |processEnvironment__wrappee__highWaterSensor_~tmp~4#1| |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1|) (or (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~6#1| 0) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~0#1| 0))) (not (= |#NULL.base| 0)) (not (<= 0 |#StackHeapBarrier|)) (not (= ~head~0.base 0)) (not (= ~cleanupTimeShifts~0 4))) (or .cse1 .cse0 (and (<= 0 |processEnvironment__wrappee__highWaterSensor_~tmp~4#1|) (= ~pumpRunning~0 0) (or (not (= ~waterLevel~0 1)) (= |processEnvironment__wrappee__highWaterSensor_~tmp~4#1| 0)))) (or .cse1 .cse0 (not (<= 2 ~waterLevel~0)) (= |processEnvironment__wrappee__highWaterSensor_~tmp~4#1| 1)))) [2022-11-23 15:31:00,360 INFO L895 garLoopResultBuilder]: At program point L567(lines 567 584) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (= |old(~pumpRunning~0)| 1)) (= ~pumpRunning~0 1)) (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0))) [2022-11-23 15:31:00,360 INFO L895 garLoopResultBuilder]: At program point L582(line 582) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (= |old(~pumpRunning~0)| 1)) (= ~pumpRunning~0 1)) (or (not (= |old(~pumpRunning~0)| 0)) .cse0))) [2022-11-23 15:31:00,360 INFO L899 garLoopResultBuilder]: For program point L582-1(lines 563 587) no Hoare annotation was computed. [2022-11-23 15:31:00,360 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 786 797) no Hoare annotation was computed. [2022-11-23 15:31:00,361 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 786 797) the Hoare annotation is: (let ((.cse14 (= ~methaneLevelCritical~0 0))) (let ((.cse6 (not (< |old(~waterLevel~0)| 2))) (.cse4 (not (= |#NULL.offset| 0))) (.cse7 (not (= ~head~0.offset 0))) (.cse8 (not .cse14)) (.cse1 (not (= ~pumpRunning~0 1))) (.cse9 (not (= |#NULL.base| 0))) (.cse10 (not (<= 0 |#StackHeapBarrier|))) (.cse11 (not (<= 0 (+ |old(~waterLevel~0)| 2147483648)))) (.cse12 (not (= ~head~0.base 0))) (.cse13 (not (= ~cleanupTimeShifts~0 4))) (.cse5 (not (= ~pumpRunning~0 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse3 (= ~waterLevel~0 1))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse0 .cse6 .cse7 .cse8 .cse9 .cse2 .cse10 .cse11 .cse12 .cse13) (or .cse5 .cse0 .cse6 .cse2 .cse3) (or .cse4 .cse0 (not (<= |old(~waterLevel~0)| 2147483647)) .cse7 .cse8 .cse1 .cse9 .cse2 .cse10 .cse11 .cse12 .cse13) (or .cse5 .cse14 .cse0 .cse2 .cse3)))) [2022-11-23 15:31:00,364 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:31:00,366 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:31:00,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:31:00 BoogieIcfgContainer [2022-11-23 15:31:00,419 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:31:00,419 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:31:00,419 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:31:00,420 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:31:00,420 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:29:51" (3/4) ... [2022-11-23 15:31:00,423 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 15:31:00,428 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-23 15:31:00,429 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-23 15:31:00,429 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-11-23 15:31:00,429 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-23 15:31:00,429 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-23 15:31:00,429 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-11-23 15:31:00,430 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-23 15:31:00,436 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 45 nodes and edges [2022-11-23 15:31:00,437 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-23 15:31:00,437 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-23 15:31:00,437 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 15:31:00,438 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 15:31:00,462 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((((((((((((((((((((((((unknown-#length-unknown[15] == 25 && 9 == unknown-#length-unknown[5]) && unknown-#length-unknown[9] == 21) && 30 == unknown-#length-unknown[7]) && 1 == \valid[5]) && unknown-#length-unknown[3] == 12) && \valid[15] == 1) && pumpRunning == 0) && \result == tmp) && 1 == retValue_acc) && \valid[9] == 1) && unknown-#length-unknown[12] == 25) && \valid[11] == 1) && methaneLevelCritical == 0) && 30 == unknown-#length-unknown[4]) && 31 == unknown-#length-unknown[2]) && head == 0) && 2 == unknown-#length-unknown[1]) && unknown-#length-unknown[8] == 9) && \valid[3] == 1) && \valid[7] == 1) && \result == retValue_acc) && 30 == unknown-#length-unknown[13]) && 1 == systemActive) && 30 == unknown-#length-unknown[10]) && \valid[12] == 1) && \valid[4] == 1) && \valid[1] == 1) && unknown-#length-unknown[6] == 21) && \valid[14] == 1) && 9 == unknown-#length-unknown[14]) && \valid[0] == 0) && head == 0) && \valid[2] == 1) && #NULL == 0) && 9 == unknown-#length-unknown[11]) && waterLevel == 1) && unknown-#memory_int-unknown[1][0] == 48) && \valid[6] == 1) && unknown-#memory_int-unknown[1][1] == 0) && \valid[10] == 1) && \valid[8] == 1) && \valid[13] == 1) && 0 < unknown-#StackHeapBarrier-unknown) && cleanupTimeShifts == 4) && #NULL == 0 [2022-11-23 15:31:00,463 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (pumpRunning == 0 && (\old(waterLevel) == waterLevel || waterLevel == 1))) && ((!(1 == systemActive) || ((\old(waterLevel) == waterLevel || waterLevel == 1) && pumpRunning == 1)) || !(\old(pumpRunning) == 1))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || \old(waterLevel) == waterLevel) || !(2 <= \old(waterLevel)))) && (((((((((((!(#NULL == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2147483647)) || !(head == 0)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(#NULL == 0)) || \old(waterLevel) == waterLevel) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(0 <= \old(waterLevel) + 2147483648)) || !(head == 0)) || !(cleanupTimeShifts == 4))) && ((((((((((!(\old(pumpRunning) == 0) || !(#NULL == 0)) || !(1 == systemActive)) || !(head == 0)) || !(methaneLevelCritical == 0)) || !(#NULL == 0)) || \old(waterLevel) == waterLevel) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(0 <= \old(waterLevel) + 2147483648)) || !(head == 0)) || !(cleanupTimeShifts == 4)) [2022-11-23 15:31:00,464 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || (tmp == methaneLevelCritical && pumpRunning == 1)) || ((pumpRunning == 0 && !(methaneLevelCritical == 0)) && tmp == methaneLevelCritical)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (!(waterLevel == 1) && pumpRunning == 1)) || (pumpRunning == 0 && waterLevel <= 1))) && ((((((((((((!(\old(pumpRunning) == 0) || !(#NULL == 0)) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(\old(waterLevel) <= 2147483647)) || !(head == 0)) || !(methaneLevelCritical == 0)) || !(#NULL == 0)) || (2 <= \old(waterLevel) && \old(waterLevel) == waterLevel)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(0 <= \old(waterLevel) + 2147483648)) || !(head == 0)) || !(cleanupTimeShifts == 4))) && (((methaneLevelCritical == 0 || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || ((pumpRunning == 0 && !(methaneLevelCritical == 0)) && tmp == methaneLevelCritical))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || 2 <= waterLevel) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) < 2)) || waterLevel <= 1)) && (((((((((((!(#NULL == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2147483647)) || !(head == 0)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(#NULL == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || ((((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || (\old(waterLevel) <= 0 && \old(waterLevel) == waterLevel)) && retValue_acc == \result) && tmp == \result)) || !(0 <= \old(waterLevel) + 2147483648)) || !(head == 0)) || !(cleanupTimeShifts == 4))) && (((!(1 == systemActive) || !(\old(waterLevel) < 2)) || waterLevel <= 1) || !(\old(pumpRunning) == 1))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || waterLevel == 1) [2022-11-23 15:31:00,465 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || pumpRunning == 1) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) [2022-11-23 15:31:00,465 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(1 == systemActive) || !(\old(waterLevel) < 2)) || waterLevel <= 1) || !(\old(pumpRunning) == 1)) && ((!(1 == systemActive) || (aux-isMethaneLevelCritical()-aux == methaneLevelCritical && pumpRunning == 1)) || !(\old(pumpRunning) == 1))) && (!(\old(pumpRunning) == 0) || !(1 == systemActive))) && ((((((((((((!(#NULL == 0) || !(1 == systemActive)) || (!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2147483647)) || !(head == 0)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(#NULL == 0)) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel))) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(0 <= \old(waterLevel) + 2147483648)) || !(head == 0)) || !(cleanupTimeShifts == 4)) [2022-11-23 15:31:00,465 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((!(\old(pumpRunning) == 0) || methaneLevelCritical == 0) || !(1 == systemActive)) || !(tmp == 0)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (!(waterLevel == 1) && pumpRunning == 1)) || (pumpRunning == 0 && waterLevel <= 1))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || 2 <= waterLevel) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) < 2)) || waterLevel <= 1)) && (((((((((((!(#NULL == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2147483647)) || !(head == 0)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(#NULL == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || ((((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || (\old(waterLevel) <= 0 && \old(waterLevel) == waterLevel)) && retValue_acc == \result) && tmp == \result)) || !(0 <= \old(waterLevel) + 2147483648)) || !(head == 0)) || !(cleanupTimeShifts == 4))) && (((!(1 == systemActive) || !(\old(waterLevel) < 2)) || waterLevel <= 1) || !(\old(pumpRunning) == 1))) && (((((((pumpRunning == 0 && 1 == systemActive) && !(methaneLevelCritical == 0)) && tmp == methaneLevelCritical) && !(tmp == 0)) || methaneLevelCritical == 0) || !(1 == systemActive)) || !(\old(pumpRunning) == 1))) && (((((((pumpRunning == 0 && 1 == systemActive) && !(methaneLevelCritical == 0)) && tmp == methaneLevelCritical) && !(tmp == 0)) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || (tmp == methaneLevelCritical && pumpRunning == 1))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || waterLevel == 1)) && ((((((((((((!(\old(pumpRunning) == 0) || !(#NULL == 0)) || !(1 == systemActive)) || !(\old(waterLevel) <= 2147483647)) || !(head == 0)) || (\old(waterLevel) == waterLevel && methaneLevelCritical == tmp)) || !(methaneLevelCritical == 0)) || !(#NULL == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && head == 0) && \old(waterLevel) == waterLevel) && #NULL == 0)) || !(0 <= \old(waterLevel) + 2147483648)) || !(head == 0)) || !(cleanupTimeShifts == 4))) && (((((((((((!(\old(pumpRunning) == 0) || !(#NULL == 0)) || !(1 == systemActive)) || !(\old(waterLevel) < 2)) || !(head == 0)) || !(methaneLevelCritical == 0)) || !(#NULL == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && head == 0) && \old(waterLevel) == waterLevel) && #NULL == 0)) || !(0 <= \old(waterLevel) + 2147483648)) || !(head == 0)) || !(cleanupTimeShifts == 4)) [2022-11-23 15:31:00,466 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((!(\old(pumpRunning) == 0) || methaneLevelCritical == 0) || !(1 == systemActive)) || !(tmp == 0)) && (((!(1 == systemActive) || !(\old(waterLevel) < 2)) || !(\old(pumpRunning) == 1)) || waterLevel < 2)) && (((((((((((((!(\old(pumpRunning) == 0) || !(#NULL == 0)) || !(1 == systemActive)) || !(\old(waterLevel) <= 2147483647)) || !(head == 0)) || (((((((\result == retValue_acc && retValue_acc == waterLevel) && \result == tmp___0) && pumpRunning == retValue_acc) && \old(waterLevel) == waterLevel) && \result == tmp___1) && methaneLevelCritical == tmp) && retValue_acc == \result)) || !(methaneLevelCritical == 0)) || !(#NULL == 0)) || (((((retValue_acc == waterLevel && \result == tmp___0) && !(2 == tmp___0)) && \old(waterLevel) == waterLevel) && methaneLevelCritical == tmp) && retValue_acc == \result)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && head == 0) && \old(waterLevel) == waterLevel) && #NULL == 0)) || !(0 <= \old(waterLevel) + 2147483648)) || !(head == 0)) || !(cleanupTimeShifts == 4))) && (((((((((((!(#NULL == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2147483647)) || !(head == 0)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(#NULL == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || ((((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || (\old(waterLevel) <= 0 && \old(waterLevel) == waterLevel)) && retValue_acc == \result) && tmp == \result)) || !(0 <= \old(waterLevel) + 2147483648)) || !(head == 0)) || !(cleanupTimeShifts == 4))) && (((((((pumpRunning == 0 && 1 == systemActive) && !(methaneLevelCritical == 0)) && tmp == methaneLevelCritical) && !(tmp == 0)) || methaneLevelCritical == 0) || !(1 == systemActive)) || !(\old(pumpRunning) == 1))) && ((((((!(waterLevel == 1) && waterLevel < 2) && pumpRunning == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(\old(waterLevel) < 2)) || ((pumpRunning == 0 && 1 == systemActive) && waterLevel < 2))) && (((((((pumpRunning == 0 && 1 == systemActive) && !(methaneLevelCritical == 0)) && tmp == methaneLevelCritical) && !(tmp == 0)) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || (tmp == methaneLevelCritical && pumpRunning == 1))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || waterLevel == 1)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((!(waterLevel == 1) && 2 <= waterLevel) && pumpRunning == 1)) || !(2 <= \old(waterLevel)))) && (((((((((((!(\old(pumpRunning) == 0) || !(#NULL == 0)) || !(1 == systemActive)) || !(\old(waterLevel) < 2)) || !(head == 0)) || !(methaneLevelCritical == 0)) || !(#NULL == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && head == 0) && \old(waterLevel) == waterLevel) && #NULL == 0)) || !(0 <= \old(waterLevel) + 2147483648)) || !(head == 0)) || !(cleanupTimeShifts == 4)) [2022-11-23 15:31:00,466 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || (tmp == methaneLevelCritical && pumpRunning == 1)) && (((((((((((!(#NULL == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2147483647)) || !(head == 0)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(#NULL == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || ((((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || (\old(waterLevel) <= 0 && \old(waterLevel) == waterLevel)) && retValue_acc == \result) && tmp == \result)) || !(0 <= \old(waterLevel) + 2147483648)) || !(head == 0)) || !(cleanupTimeShifts == 4))) && (((!(1 == systemActive) || !(\old(waterLevel) < 2)) || waterLevel <= 1) || !(\old(pumpRunning) == 1))) && (!(\old(pumpRunning) == 0) || !(1 == systemActive)) [2022-11-23 15:31:00,467 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((!(\old(pumpRunning) == 0) || !(#NULL == 0)) || !(1 == systemActive)) || !(\old(waterLevel) < 2)) || !(head == 0)) || (((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp___0 <= 1) && waterLevel <= 1) && \old(waterLevel) == waterLevel) && #NULL == 0)) || !(#NULL == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(0 <= \old(waterLevel) + 2147483648)) || !(head == 0)) || !(cleanupTimeShifts == 4)) && (((((((((((!(\old(pumpRunning) == 0) || !(#NULL == 0)) || !(1 == systemActive)) || !(\old(waterLevel) <= 2147483647)) || !(head == 0)) || (((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp___0 <= 1) && waterLevel <= 1) && \old(waterLevel) == waterLevel) && #NULL == 0)) || !(#NULL == 0)) || ((((retValue_acc == waterLevel && \result == tmp___0) && \old(waterLevel) == waterLevel) && methaneLevelCritical == tmp) && retValue_acc == \result)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(0 <= \old(waterLevel) + 2147483648)) || !(head == 0)) || !(cleanupTimeShifts == 4))) && ((((((pumpRunning == 0 && tmp___0 <= 1) && waterLevel <= 1) || !(\old(pumpRunning) == 0)) || (((!(waterLevel == 1) && tmp___0 <= 1) && waterLevel <= 1) && pumpRunning == 1)) || !(1 == systemActive)) || !(\old(waterLevel) < 2))) && ((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || (tmp == methaneLevelCritical && pumpRunning == 1))) && ((methaneLevelCritical == 0 || !(1 == systemActive)) || !(\old(pumpRunning) == 1))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (2 <= waterLevel && pumpRunning == 1)) || !(2 <= \old(waterLevel)))) && ((((tmp___0 <= 1 && waterLevel <= 1) || !(1 == systemActive)) || !(\old(waterLevel) < 2)) || !(\old(pumpRunning) == 1))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || waterLevel == 1)) && ((((((((((!(#NULL == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2147483647)) || !(head == 0)) || !(\old(pumpRunning) == 1)) || !(#NULL == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || ((((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || (\old(waterLevel) <= 0 && \old(waterLevel) == waterLevel)) && retValue_acc == \result) && tmp == \result)) || !(0 <= \old(waterLevel) + 2147483648)) || !(head == 0)) || !(cleanupTimeShifts == 4))) && ((!(\old(pumpRunning) == 0) || methaneLevelCritical == 0) || !(1 == systemActive)) [2022-11-23 15:31:00,467 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(1 == systemActive) || !(\old(pumpRunning) == 1)) && (!(\old(pumpRunning) == 0) || !(1 == systemActive)) [2022-11-23 15:31:00,467 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) && (((((((((!(\old(pumpRunning) == 0) || !(#NULL == 0)) || !(1 == systemActive)) || !(head == 0)) || !(methaneLevelCritical == 0)) || (((((retValue_acc == tmp___0 && retValue_acc == \result) && ((!(waterLevel < 2) && retValue_acc == 0) || (retValue_acc == \result && retValue_acc == 1))) && \result == tmp) && tmp == \result) && (tmp == 0 || tmp___0 == 0))) || !(#NULL == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(head == 0)) || !(cleanupTimeShifts == 4))) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((0 <= tmp && pumpRunning == 0) && (!(waterLevel == 1) || tmp == 0)))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(2 <= waterLevel)) || tmp == 1) [2022-11-23 15:31:00,488 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e153551f-9838-42a1-a701-103028054789/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 15:31:00,488 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:31:00,489 INFO L158 Benchmark]: Toolchain (without parser) took 70160.40ms. Allocated memory was 148.9MB in the beginning and 356.5MB in the end (delta: 207.6MB). Free memory was 108.6MB in the beginning and 233.3MB in the end (delta: -124.7MB). Peak memory consumption was 84.9MB. Max. memory is 16.1GB. [2022-11-23 15:31:00,489 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 148.9MB. Free memory was 119.0MB in the beginning and 118.8MB in the end (delta: 140.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:31:00,490 INFO L158 Benchmark]: CACSL2BoogieTranslator took 690.69ms. Allocated memory is still 148.9MB. Free memory was 108.6MB in the beginning and 90.2MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-23 15:31:00,490 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.78ms. Allocated memory is still 148.9MB. Free memory was 90.2MB in the beginning and 88.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:31:00,490 INFO L158 Benchmark]: Boogie Preprocessor took 60.01ms. Allocated memory is still 148.9MB. Free memory was 88.1MB in the beginning and 86.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:31:00,491 INFO L158 Benchmark]: RCFGBuilder took 702.87ms. Allocated memory is still 148.9MB. Free memory was 86.7MB in the beginning and 63.0MB in the end (delta: 23.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-23 15:31:00,491 INFO L158 Benchmark]: TraceAbstraction took 68555.57ms. Allocated memory was 148.9MB in the beginning and 356.5MB in the end (delta: 207.6MB). Free memory was 62.5MB in the beginning and 238.5MB in the end (delta: -176.0MB). Peak memory consumption was 164.7MB. Max. memory is 16.1GB. [2022-11-23 15:31:00,492 INFO L158 Benchmark]: Witness Printer took 69.37ms. Allocated memory is still 356.5MB. Free memory was 238.5MB in the beginning and 233.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-23 15:31:00,493 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 148.9MB. Free memory was 119.0MB in the beginning and 118.8MB in the end (delta: 140.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 690.69ms. Allocated memory is still 148.9MB. Free memory was 108.6MB in the beginning and 90.2MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.78ms. Allocated memory is still 148.9MB. Free memory was 90.2MB in the beginning and 88.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.01ms. Allocated memory is still 148.9MB. Free memory was 88.1MB in the beginning and 86.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 702.87ms. Allocated memory is still 148.9MB. Free memory was 86.7MB in the beginning and 63.0MB in the end (delta: 23.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 68555.57ms. Allocated memory was 148.9MB in the beginning and 356.5MB in the end (delta: 207.6MB). Free memory was 62.5MB in the beginning and 238.5MB in the end (delta: -176.0MB). Peak memory consumption was 164.7MB. Max. memory is 16.1GB. * Witness Printer took 69.37ms. Allocated memory is still 356.5MB. Free memory was 238.5MB in the beginning and 233.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 870]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 58 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 68.4s, OverallIterations: 13, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 16.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 19.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1394 SdHoareTripleChecker+Valid, 5.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1368 mSDsluCounter, 3104 SdHoareTripleChecker+Invalid, 5.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2273 mSDsCounter, 499 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4214 IncrementalHoareTripleChecker+Invalid, 4713 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 499 mSolverCounterUnsat, 831 mSDtfsCounter, 4214 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 657 GetRequests, 446 SyntacticMatches, 11 SemanticMatches, 200 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2252 ImplicationChecksByTransitivity, 27.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=565occurred in iteration=12, InterpolantAutomatonStates: 144, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 13 MinimizatonAttempts, 241 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 35 LocationsWithAnnotation, 1395 PreInvPairs, 1578 NumberOfFragments, 3439 HoareAnnotationTreeSize, 1395 FomulaSimplifications, 17686 FormulaSimplificationTreeSizeReduction, 2.8s HoareSimplificationTime, 35 FomulaSimplificationsInter, 128113 FormulaSimplificationTreeSizeReductionInter, 17.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 755 NumberOfCodeBlocks, 755 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 845 ConstructedInterpolants, 0 QuantifiedInterpolants, 2297 SizeOfPredicates, 42 NumberOfNonLiveVariables, 1502 ConjunctsInSsa, 110 ConjunctsInUnsatCore, 21 InterpolantComputations, 11 PerfectInterpolantSequences, 175/231 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 6.7s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 10, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 91, DAG_INTERPRETER_EARLY_EXITS: 8, TOOLS_POST_APPLICATIONS: 112, TOOLS_POST_TIME: 1.7s, TOOLS_POST_CALL_APPLICATIONS: 49, TOOLS_POST_CALL_TIME: 2.5s, TOOLS_POST_RETURN_APPLICATIONS: 40, TOOLS_POST_RETURN_TIME: 1.5s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 199, TOOLS_QUANTIFIERELIM_TIME: 5.6s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.3s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 259, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 37, DOMAIN_JOIN_TIME: 0.5s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 1, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 3, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 91, DOMAIN_ISBOTTOM_TIME: 0.2s, LOOP_SUMMARIZER_APPLICATIONS: 2, LOOP_SUMMARIZER_CACHE_MISSES: 2, LOOP_SUMMARIZER_OVERALL_TIME: 2.9s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 2.9s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 3, CALL_SUMMARIZER_APPLICATIONS: 40, CALL_SUMMARIZER_CACHE_MISSES: 8, CALL_SUMMARIZER_OVERALL_TIME: 0.2s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.2s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 1335, DAG_COMPRESSION_RETAINED_NODES: 236, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 875]: Loop Invariant Derived loop invariant: (((((((((((!(\old(pumpRunning) == 0) || methaneLevelCritical == 0) || !(1 == systemActive)) || !(tmp == 0)) && (((!(1 == systemActive) || !(\old(waterLevel) < 2)) || !(\old(pumpRunning) == 1)) || waterLevel < 2)) && (((((((((((((!(\old(pumpRunning) == 0) || !(#NULL == 0)) || !(1 == systemActive)) || !(\old(waterLevel) <= 2147483647)) || !(head == 0)) || (((((((\result == retValue_acc && retValue_acc == waterLevel) && \result == tmp___0) && pumpRunning == retValue_acc) && \old(waterLevel) == waterLevel) && \result == tmp___1) && methaneLevelCritical == tmp) && retValue_acc == \result)) || !(methaneLevelCritical == 0)) || !(#NULL == 0)) || (((((retValue_acc == waterLevel && \result == tmp___0) && !(2 == tmp___0)) && \old(waterLevel) == waterLevel) && methaneLevelCritical == tmp) && retValue_acc == \result)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && head == 0) && \old(waterLevel) == waterLevel) && #NULL == 0)) || !(0 <= \old(waterLevel) + 2147483648)) || !(head == 0)) || !(cleanupTimeShifts == 4))) && (((((((((((!(#NULL == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2147483647)) || !(head == 0)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(#NULL == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || ((((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || (\old(waterLevel) <= 0 && \old(waterLevel) == waterLevel)) && retValue_acc == \result) && tmp == \result)) || !(0 <= \old(waterLevel) + 2147483648)) || !(head == 0)) || !(cleanupTimeShifts == 4))) && (((((((pumpRunning == 0 && 1 == systemActive) && !(methaneLevelCritical == 0)) && tmp == methaneLevelCritical) && !(tmp == 0)) || methaneLevelCritical == 0) || !(1 == systemActive)) || !(\old(pumpRunning) == 1))) && ((((((!(waterLevel == 1) && waterLevel < 2) && pumpRunning == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(\old(waterLevel) < 2)) || ((pumpRunning == 0 && 1 == systemActive) && waterLevel < 2))) && (((((((pumpRunning == 0 && 1 == systemActive) && !(methaneLevelCritical == 0)) && tmp == methaneLevelCritical) && !(tmp == 0)) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || (tmp == methaneLevelCritical && pumpRunning == 1))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || waterLevel == 1)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((!(waterLevel == 1) && 2 <= waterLevel) && pumpRunning == 1)) || !(2 <= \old(waterLevel)))) && (((((((((((!(\old(pumpRunning) == 0) || !(#NULL == 0)) || !(1 == systemActive)) || !(\old(waterLevel) < 2)) || !(head == 0)) || !(methaneLevelCritical == 0)) || !(#NULL == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && head == 0) && \old(waterLevel) == waterLevel) && #NULL == 0)) || !(0 <= \old(waterLevel) + 2147483648)) || !(head == 0)) || !(cleanupTimeShifts == 4)) - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 635]: Loop Invariant Derived loop invariant: (((((!(1 == systemActive) || !(\old(waterLevel) < 2)) || waterLevel <= 1) || !(\old(pumpRunning) == 1)) && ((!(1 == systemActive) || (aux-isMethaneLevelCritical()-aux == methaneLevelCritical && pumpRunning == 1)) || !(\old(pumpRunning) == 1))) && (!(\old(pumpRunning) == 0) || !(1 == systemActive))) && ((((((((((((!(#NULL == 0) || !(1 == systemActive)) || (!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2147483647)) || !(head == 0)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(#NULL == 0)) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel))) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(0 <= \old(waterLevel) + 2147483648)) || !(head == 0)) || !(cleanupTimeShifts == 4)) - InvariantResult [Line: 716]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && 1 == systemActive) && splverifierCounter == 0) && waterLevel < 2) || ((1 == systemActive && splverifierCounter == 0) && pumpRunning == 1)) || (((pumpRunning == 0 && 1 == systemActive) && !(methaneLevelCritical == 0)) && splverifierCounter == 0) - InvariantResult [Line: 140]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 706]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 715]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 571]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) && (((((((((!(\old(pumpRunning) == 0) || !(#NULL == 0)) || !(1 == systemActive)) || !(head == 0)) || !(methaneLevelCritical == 0)) || (((((retValue_acc == tmp___0 && retValue_acc == \result) && ((!(waterLevel < 2) && retValue_acc == 0) || (retValue_acc == \result && retValue_acc == 1))) && \result == tmp) && tmp == \result) && (tmp == 0 || tmp___0 == 0))) || !(#NULL == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(head == 0)) || !(cleanupTimeShifts == 4))) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((0 <= tmp && pumpRunning == 0) && (!(waterLevel == 1) || tmp == 0)))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(2 <= waterLevel)) || tmp == 1) - InvariantResult [Line: 140]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((((((((((((unknown-#length-unknown[15] == 25 && 9 == unknown-#length-unknown[5]) && unknown-#length-unknown[9] == 21) && 30 == unknown-#length-unknown[7]) && 1 == \valid[5]) && unknown-#length-unknown[3] == 12) && \valid[15] == 1) && pumpRunning == 0) && \result == tmp) && 1 == retValue_acc) && \valid[9] == 1) && unknown-#length-unknown[12] == 25) && \valid[11] == 1) && methaneLevelCritical == 0) && 30 == unknown-#length-unknown[4]) && 31 == unknown-#length-unknown[2]) && head == 0) && 2 == unknown-#length-unknown[1]) && unknown-#length-unknown[8] == 9) && \valid[3] == 1) && \valid[7] == 1) && \result == retValue_acc) && 30 == unknown-#length-unknown[13]) && 1 == systemActive) && 30 == unknown-#length-unknown[10]) && \valid[12] == 1) && \valid[4] == 1) && \valid[1] == 1) && unknown-#length-unknown[6] == 21) && \valid[14] == 1) && 9 == unknown-#length-unknown[14]) && \valid[0] == 0) && head == 0) && \valid[2] == 1) && #NULL == 0) && 9 == unknown-#length-unknown[11]) && waterLevel == 1) && unknown-#memory_int-unknown[1][0] == 48) && \valid[6] == 1) && unknown-#memory_int-unknown[1][1] == 0) && \valid[10] == 1) && \valid[8] == 1) && \valid[13] == 1) && 0 < unknown-#StackHeapBarrier-unknown) && cleanupTimeShifts == 4) && #NULL == 0 - InvariantResult [Line: 531]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (pumpRunning == 0 && (\old(waterLevel) == waterLevel || waterLevel == 1))) && ((!(1 == systemActive) || ((\old(waterLevel) == waterLevel || waterLevel == 1) && pumpRunning == 1)) || !(\old(pumpRunning) == 1))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || \old(waterLevel) == waterLevel) || !(2 <= \old(waterLevel)))) && (((((((((((!(#NULL == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2147483647)) || !(head == 0)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(#NULL == 0)) || \old(waterLevel) == waterLevel) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(0 <= \old(waterLevel) + 2147483648)) || !(head == 0)) || !(cleanupTimeShifts == 4))) && ((((((((((!(\old(pumpRunning) == 0) || !(#NULL == 0)) || !(1 == systemActive)) || !(head == 0)) || !(methaneLevelCritical == 0)) || !(#NULL == 0)) || \old(waterLevel) == waterLevel) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(0 <= \old(waterLevel) + 2147483648)) || !(head == 0)) || !(cleanupTimeShifts == 4)) - InvariantResult [Line: 589]: Loop Invariant Derived loop invariant: ((((((((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || (tmp == methaneLevelCritical && pumpRunning == 1)) || ((pumpRunning == 0 && !(methaneLevelCritical == 0)) && tmp == methaneLevelCritical)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (!(waterLevel == 1) && pumpRunning == 1)) || (pumpRunning == 0 && waterLevel <= 1))) && ((((((((((((!(\old(pumpRunning) == 0) || !(#NULL == 0)) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(\old(waterLevel) <= 2147483647)) || !(head == 0)) || !(methaneLevelCritical == 0)) || !(#NULL == 0)) || (2 <= \old(waterLevel) && \old(waterLevel) == waterLevel)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(0 <= \old(waterLevel) + 2147483648)) || !(head == 0)) || !(cleanupTimeShifts == 4))) && (((methaneLevelCritical == 0 || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || ((pumpRunning == 0 && !(methaneLevelCritical == 0)) && tmp == methaneLevelCritical))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || 2 <= waterLevel) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) < 2)) || waterLevel <= 1)) && (((((((((((!(#NULL == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2147483647)) || !(head == 0)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(#NULL == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || ((((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || (\old(waterLevel) <= 0 && \old(waterLevel) == waterLevel)) && retValue_acc == \result) && tmp == \result)) || !(0 <= \old(waterLevel) + 2147483648)) || !(head == 0)) || !(cleanupTimeShifts == 4))) && (((!(1 == systemActive) || !(\old(waterLevel) < 2)) || waterLevel <= 1) || !(\old(pumpRunning) == 1))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || waterLevel == 1) - InvariantResult [Line: 567]: Loop Invariant Derived loop invariant: ((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || pumpRunning == 1) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) - InvariantResult [Line: 870]: Loop Invariant Derived loop invariant: (!(1 == systemActive) || !(\old(pumpRunning) == 1)) && (!(\old(pumpRunning) == 0) || !(1 == systemActive)) - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: ((((((((((((((((((!(\old(pumpRunning) == 0) || !(#NULL == 0)) || !(1 == systemActive)) || !(\old(waterLevel) < 2)) || !(head == 0)) || (((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp___0 <= 1) && waterLevel <= 1) && \old(waterLevel) == waterLevel) && #NULL == 0)) || !(#NULL == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(0 <= \old(waterLevel) + 2147483648)) || !(head == 0)) || !(cleanupTimeShifts == 4)) && (((((((((((!(\old(pumpRunning) == 0) || !(#NULL == 0)) || !(1 == systemActive)) || !(\old(waterLevel) <= 2147483647)) || !(head == 0)) || (((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp___0 <= 1) && waterLevel <= 1) && \old(waterLevel) == waterLevel) && #NULL == 0)) || !(#NULL == 0)) || ((((retValue_acc == waterLevel && \result == tmp___0) && \old(waterLevel) == waterLevel) && methaneLevelCritical == tmp) && retValue_acc == \result)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(0 <= \old(waterLevel) + 2147483648)) || !(head == 0)) || !(cleanupTimeShifts == 4))) && ((((((pumpRunning == 0 && tmp___0 <= 1) && waterLevel <= 1) || !(\old(pumpRunning) == 0)) || (((!(waterLevel == 1) && tmp___0 <= 1) && waterLevel <= 1) && pumpRunning == 1)) || !(1 == systemActive)) || !(\old(waterLevel) < 2))) && ((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || (tmp == methaneLevelCritical && pumpRunning == 1))) && ((methaneLevelCritical == 0 || !(1 == systemActive)) || !(\old(pumpRunning) == 1))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (2 <= waterLevel && pumpRunning == 1)) || !(2 <= \old(waterLevel)))) && ((((tmp___0 <= 1 && waterLevel <= 1) || !(1 == systemActive)) || !(\old(waterLevel) < 2)) || !(\old(pumpRunning) == 1))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || waterLevel == 1)) && ((((((((((!(#NULL == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2147483647)) || !(head == 0)) || !(\old(pumpRunning) == 1)) || !(#NULL == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || ((((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || (\old(waterLevel) <= 0 && \old(waterLevel) == waterLevel)) && retValue_acc == \result) && tmp == \result)) || !(0 <= \old(waterLevel) + 2147483648)) || !(head == 0)) || !(cleanupTimeShifts == 4))) && ((!(\old(pumpRunning) == 0) || methaneLevelCritical == 0) || !(1 == systemActive)) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: ((((((((((((!(\old(pumpRunning) == 0) || methaneLevelCritical == 0) || !(1 == systemActive)) || !(tmp == 0)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (!(waterLevel == 1) && pumpRunning == 1)) || (pumpRunning == 0 && waterLevel <= 1))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || 2 <= waterLevel) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) < 2)) || waterLevel <= 1)) && (((((((((((!(#NULL == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2147483647)) || !(head == 0)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(#NULL == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || ((((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || (\old(waterLevel) <= 0 && \old(waterLevel) == waterLevel)) && retValue_acc == \result) && tmp == \result)) || !(0 <= \old(waterLevel) + 2147483648)) || !(head == 0)) || !(cleanupTimeShifts == 4))) && (((!(1 == systemActive) || !(\old(waterLevel) < 2)) || waterLevel <= 1) || !(\old(pumpRunning) == 1))) && (((((((pumpRunning == 0 && 1 == systemActive) && !(methaneLevelCritical == 0)) && tmp == methaneLevelCritical) && !(tmp == 0)) || methaneLevelCritical == 0) || !(1 == systemActive)) || !(\old(pumpRunning) == 1))) && (((((((pumpRunning == 0 && 1 == systemActive) && !(methaneLevelCritical == 0)) && tmp == methaneLevelCritical) && !(tmp == 0)) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || (tmp == methaneLevelCritical && pumpRunning == 1))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || waterLevel == 1)) && ((((((((((((!(\old(pumpRunning) == 0) || !(#NULL == 0)) || !(1 == systemActive)) || !(\old(waterLevel) <= 2147483647)) || !(head == 0)) || (\old(waterLevel) == waterLevel && methaneLevelCritical == tmp)) || !(methaneLevelCritical == 0)) || !(#NULL == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && head == 0) && \old(waterLevel) == waterLevel) && #NULL == 0)) || !(0 <= \old(waterLevel) + 2147483648)) || !(head == 0)) || !(cleanupTimeShifts == 4))) && (((((((((((!(\old(pumpRunning) == 0) || !(#NULL == 0)) || !(1 == systemActive)) || !(\old(waterLevel) < 2)) || !(head == 0)) || !(methaneLevelCritical == 0)) || !(#NULL == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && head == 0) && \old(waterLevel) == waterLevel) && #NULL == 0)) || !(0 <= \old(waterLevel) + 2147483648)) || !(head == 0)) || !(cleanupTimeShifts == 4)) - InvariantResult [Line: 597]: Loop Invariant Derived loop invariant: ((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || (tmp == methaneLevelCritical && pumpRunning == 1)) && (((((((((((!(#NULL == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2147483647)) || !(head == 0)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(#NULL == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || ((((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || (\old(waterLevel) <= 0 && \old(waterLevel) == waterLevel)) && retValue_acc == \result) && tmp == \result)) || !(0 <= \old(waterLevel) + 2147483648)) || !(head == 0)) || !(cleanupTimeShifts == 4))) && (((!(1 == systemActive) || !(\old(waterLevel) < 2)) || waterLevel <= 1) || !(\old(pumpRunning) == 1))) && (!(\old(pumpRunning) == 0) || !(1 == systemActive)) RESULT: Ultimate proved your program to be correct! [2022-11-23 15:31:00,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e153551f-9838-42a1-a701-103028054789/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE