./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product61.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_844c461a-6338-4b4e-a623-68962bab4c5b/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_844c461a-6338-4b4e-a623-68962bab4c5b/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_844c461a-6338-4b4e-a623-68962bab4c5b/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_844c461a-6338-4b4e-a623-68962bab4c5b/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product61.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_844c461a-6338-4b4e-a623-68962bab4c5b/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_844c461a-6338-4b4e-a623-68962bab4c5b/bin/utaipan-I9t0OCRTmS --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 9e3065d54459a1af9237785e443ea1bc130aed8710eaae31e283e0fdf62db72d --- 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-8393723 [2022-11-19 07:04:30,646 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:04:30,649 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:04:30,691 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:04:30,691 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:04:30,692 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:04:30,694 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:04:30,695 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:04:30,697 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:04:30,698 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:04:30,703 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:04:30,707 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:04:30,707 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:04:30,713 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:04:30,716 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:04:30,718 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:04:30,720 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:04:30,722 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:04:30,726 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:04:30,733 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:04:30,734 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:04:30,735 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:04:30,739 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:04:30,740 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:04:30,748 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:04:30,748 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:04:30,749 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:04:30,750 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:04:30,751 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:04:30,752 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:04:30,752 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:04:30,753 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:04:30,755 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:04:30,757 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:04:30,758 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:04:30,759 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:04:30,760 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:04:30,760 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:04:30,760 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:04:30,761 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:04:30,762 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:04:30,762 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_844c461a-6338-4b4e-a623-68962bab4c5b/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 07:04:30,821 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:04:30,822 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:04:30,822 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:04:30,823 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:04:30,824 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:04:30,824 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:04:30,824 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:04:30,825 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:04:30,825 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:04:30,825 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:04:30,826 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:04:30,827 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:04:30,827 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:04:30,827 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:04:30,827 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:04:30,828 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:04:30,828 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:04:30,828 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:04:30,829 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:04:30,829 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:04:30,830 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:04:30,830 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:04:30,830 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:04:30,832 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:04:30,832 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:04:30,832 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:04:30,833 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:04:30,833 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:04:30,833 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:04:30,834 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:04:30,834 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:04:30,834 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:04:30,835 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:04:30,835 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:04:30,835 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:04:30,835 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:04:30,836 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:04:30,836 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:04:30,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:04:30,836 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:04:30,837 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:04:30,837 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_844c461a-6338-4b4e-a623-68962bab4c5b/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_844c461a-6338-4b4e-a623-68962bab4c5b/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e3065d54459a1af9237785e443ea1bc130aed8710eaae31e283e0fdf62db72d [2022-11-19 07:04:31,147 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:04:31,179 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:04:31,182 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:04:31,184 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:04:31,184 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:04:31,186 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_844c461a-6338-4b4e-a623-68962bab4c5b/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/product-lines/minepump_spec2_product61.cil.c [2022-11-19 07:04:31,252 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_844c461a-6338-4b4e-a623-68962bab4c5b/bin/utaipan-I9t0OCRTmS/data/478924455/335f56fdbb5f4cb68ffd7369318604fb/FLAGcab6e9d83 [2022-11-19 07:04:31,789 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:04:31,790 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_844c461a-6338-4b4e-a623-68962bab4c5b/sv-benchmarks/c/product-lines/minepump_spec2_product61.cil.c [2022-11-19 07:04:31,809 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_844c461a-6338-4b4e-a623-68962bab4c5b/bin/utaipan-I9t0OCRTmS/data/478924455/335f56fdbb5f4cb68ffd7369318604fb/FLAGcab6e9d83 [2022-11-19 07:04:32,104 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_844c461a-6338-4b4e-a623-68962bab4c5b/bin/utaipan-I9t0OCRTmS/data/478924455/335f56fdbb5f4cb68ffd7369318604fb [2022-11-19 07:04:32,106 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:04:32,108 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:04:32,111 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:04:32,112 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:04:32,115 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:04:32,116 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:04:32" (1/1) ... [2022-11-19 07:04:32,118 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59b9d259 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:32, skipping insertion in model container [2022-11-19 07:04:32,119 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:04:32" (1/1) ... [2022-11-19 07:04:32,127 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:04:32,207 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:04:32,441 WARN L234 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_844c461a-6338-4b4e-a623-68962bab4c5b/sv-benchmarks/c/product-lines/minepump_spec2_product61.cil.c[13371,13384] [2022-11-19 07:04:32,471 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:04:32,479 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:04:32,541 WARN L234 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_844c461a-6338-4b4e-a623-68962bab4c5b/sv-benchmarks/c/product-lines/minepump_spec2_product61.cil.c[13371,13384] [2022-11-19 07:04:32,575 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:04:32,598 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:04:32,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:32 WrapperNode [2022-11-19 07:04:32,598 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:04:32,600 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:04:32,600 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:04:32,600 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:04:32,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:32" (1/1) ... [2022-11-19 07:04:32,621 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:32" (1/1) ... [2022-11-19 07:04:32,654 INFO L138 Inliner]: procedures = 58, calls = 105, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 220 [2022-11-19 07:04:32,654 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:04:32,655 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:04:32,655 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:04:32,655 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:04:32,671 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:32" (1/1) ... [2022-11-19 07:04:32,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:32" (1/1) ... [2022-11-19 07:04:32,674 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:32" (1/1) ... [2022-11-19 07:04:32,674 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:32" (1/1) ... [2022-11-19 07:04:32,679 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:32" (1/1) ... [2022-11-19 07:04:32,684 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:32" (1/1) ... [2022-11-19 07:04:32,685 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:32" (1/1) ... [2022-11-19 07:04:32,687 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:32" (1/1) ... [2022-11-19 07:04:32,689 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:04:32,690 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:04:32,690 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:04:32,690 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:04:32,691 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:32" (1/1) ... [2022-11-19 07:04:32,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:04:32,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_844c461a-6338-4b4e-a623-68962bab4c5b/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:04:32,737 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_844c461a-6338-4b4e-a623-68962bab4c5b/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:04:32,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_844c461a-6338-4b4e-a623-68962bab4c5b/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:04:32,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:04:32,785 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-19 07:04:32,786 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-19 07:04:32,786 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-19 07:04:32,786 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-19 07:04:32,786 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-19 07:04:32,786 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-19 07:04:32,787 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-19 07:04:32,787 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-19 07:04:32,787 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-11-19 07:04:32,787 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-11-19 07:04:32,787 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-19 07:04:32,787 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-19 07:04:32,788 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-11-19 07:04:32,788 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-11-19 07:04:32,788 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-11-19 07:04:32,788 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-11-19 07:04:32,788 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-11-19 07:04:32,789 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-11-19 07:04:32,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:04:32,789 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-19 07:04:32,789 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-19 07:04:32,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:04:32,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:04:32,871 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:04:32,873 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:04:33,238 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:04:33,360 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:04:33,361 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-19 07:04:33,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:04:33 BoogieIcfgContainer [2022-11-19 07:04:33,364 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:04:33,366 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:04:33,366 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:04:33,370 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:04:33,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:04:32" (1/3) ... [2022-11-19 07:04:33,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10085de9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:04:33, skipping insertion in model container [2022-11-19 07:04:33,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:32" (2/3) ... [2022-11-19 07:04:33,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10085de9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:04:33, skipping insertion in model container [2022-11-19 07:04:33,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:04:33" (3/3) ... [2022-11-19 07:04:33,373 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product61.cil.c [2022-11-19 07:04:33,391 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:04:33,391 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:04:33,442 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:04:33,448 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;@145e95d7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:04:33,467 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:04:33,472 INFO L276 IsEmpty]: Start isEmpty. Operand has 75 states, 45 states have (on average 1.4) internal successors, (63), 55 states have internal predecessors, (63), 18 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-19 07:04:33,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-19 07:04:33,494 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:04:33,504 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:04:33,505 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:04:33,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:04:33,511 INFO L85 PathProgramCache]: Analyzing trace with hash -604387280, now seen corresponding path program 1 times [2022-11-19 07:04:33,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:04:33,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800869226] [2022-11-19 07:04:33,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:04:33,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:04:33,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:04:33,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:04:33,691 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:04:33,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800869226] [2022-11-19 07:04:33,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800869226] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:04:33,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:04:33,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:04:33,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414018893] [2022-11-19 07:04:33,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:04:33,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 07:04:33,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:04:33,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 07:04:33,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:04:33,732 INFO L87 Difference]: Start difference. First operand has 75 states, 45 states have (on average 1.4) internal successors, (63), 55 states have internal predecessors, (63), 18 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) 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) [2022-11-19 07:04:33,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:04:33,841 INFO L93 Difference]: Finished difference Result 148 states and 199 transitions. [2022-11-19 07:04:33,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 07:04:33,845 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 [2022-11-19 07:04:33,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:04:33,863 INFO L225 Difference]: With dead ends: 148 [2022-11-19 07:04:33,864 INFO L226 Difference]: Without dead ends: 70 [2022-11-19 07:04:33,869 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 [2022-11-19 07:04:33,874 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 78 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 [2022-11-19 07:04:33,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 78 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:04:33,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-11-19 07:04:33,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2022-11-19 07:04:33,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 42 states have (on average 1.3095238095238095) internal successors, (55), 51 states have internal predecessors, (55), 18 states have call successors, (18), 10 states have call predecessors, (18), 9 states have return successors, (17), 12 states have call predecessors, (17), 17 states have call successors, (17) [2022-11-19 07:04:33,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 90 transitions. [2022-11-19 07:04:33,944 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 90 transitions. Word has length 17 [2022-11-19 07:04:33,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:04:33,946 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 90 transitions. [2022-11-19 07:04:33,947 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) [2022-11-19 07:04:33,947 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 90 transitions. [2022-11-19 07:04:33,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-19 07:04:33,951 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:04:33,952 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:04:33,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:04:33,953 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:04:33,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:04:33,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1152297191, now seen corresponding path program 1 times [2022-11-19 07:04:33,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:04:33,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526582184] [2022-11-19 07:04:33,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:04:33,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:04:33,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:04:34,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:04:34,088 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:04:34,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526582184] [2022-11-19 07:04:34,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526582184] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:04:34,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:04:34,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:04:34,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355870538] [2022-11-19 07:04:34,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:04:34,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:04:34,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:04:34,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:04:34,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:04:34,093 INFO L87 Difference]: Start difference. First operand 70 states and 90 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) [2022-11-19 07:04:34,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:04:34,181 INFO L93 Difference]: Finished difference Result 117 states and 151 transitions. [2022-11-19 07:04:34,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:04:34,186 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 [2022-11-19 07:04:34,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:04:34,188 INFO L225 Difference]: With dead ends: 117 [2022-11-19 07:04:34,188 INFO L226 Difference]: Without dead ends: 62 [2022-11-19 07:04:34,189 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 [2022-11-19 07:04:34,190 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 7 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:04:34,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 119 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:04:34,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-11-19 07:04:34,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-11-19 07:04:34,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 37 states have (on average 1.3243243243243243) internal successors, (49), 46 states have internal predecessors, (49), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-19 07:04:34,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 79 transitions. [2022-11-19 07:04:34,205 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 79 transitions. Word has length 18 [2022-11-19 07:04:34,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:04:34,205 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 79 transitions. [2022-11-19 07:04:34,206 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) [2022-11-19 07:04:34,206 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 79 transitions. [2022-11-19 07:04:34,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-19 07:04:34,207 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:04:34,210 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] [2022-11-19 07:04:34,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:04:34,210 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:04:34,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:04:34,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1464757788, now seen corresponding path program 1 times [2022-11-19 07:04:34,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:04:34,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976365905] [2022-11-19 07:04:34,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:04:34,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:04:34,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:04:34,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:04:34,381 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:04:34,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976365905] [2022-11-19 07:04:34,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976365905] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:04:34,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:04:34,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:04:34,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56136611] [2022-11-19 07:04:34,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:04:34,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:04:34,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:04:34,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:04:34,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:04:34,384 INFO L87 Difference]: Start difference. First operand 62 states and 79 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) [2022-11-19 07:04:34,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:04:34,450 INFO L93 Difference]: Finished difference Result 122 states and 157 transitions. [2022-11-19 07:04:34,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:04:34,455 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 [2022-11-19 07:04:34,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:04:34,456 INFO L225 Difference]: With dead ends: 122 [2022-11-19 07:04:34,459 INFO L226 Difference]: Without dead ends: 62 [2022-11-19 07:04:34,460 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 [2022-11-19 07:04:34,462 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 68 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 62 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 [2022-11-19 07:04:34,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 62 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:04:34,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-11-19 07:04:34,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-11-19 07:04:34,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 37 states have (on average 1.2972972972972974) internal successors, (48), 46 states have internal predecessors, (48), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-19 07:04:34,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 78 transitions. [2022-11-19 07:04:34,486 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 78 transitions. Word has length 20 [2022-11-19 07:04:34,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:04:34,487 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 78 transitions. [2022-11-19 07:04:34,487 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) [2022-11-19 07:04:34,487 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 78 transitions. [2022-11-19 07:04:34,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-19 07:04:34,492 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:04:34,492 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] [2022-11-19 07:04:34,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:04:34,493 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:04:34,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:04:34,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1074089259, now seen corresponding path program 1 times [2022-11-19 07:04:34,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:04:34,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673481219] [2022-11-19 07:04:34,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:04:34,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:04:34,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:04:34,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:04:34,713 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:04:34,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673481219] [2022-11-19 07:04:34,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673481219] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:04:34,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:04:34,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:04:34,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750729188] [2022-11-19 07:04:34,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:04:34,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:04:34,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:04:34,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:04:34,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:04:34,719 INFO L87 Difference]: Start difference. First operand 62 states and 78 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-19 07:04:35,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:04:35,054 INFO L93 Difference]: Finished difference Result 195 states and 244 transitions. [2022-11-19 07:04:35,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 07:04:35,055 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), 3 states have call successors, (4), 3 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 [2022-11-19 07:04:35,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:04:35,063 INFO L225 Difference]: With dead ends: 195 [2022-11-19 07:04:35,063 INFO L226 Difference]: Without dead ends: 135 [2022-11-19 07:04:35,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:04:35,075 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 134 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:04:35,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 184 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:04:35,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2022-11-19 07:04:35,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 129. [2022-11-19 07:04:35,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 83 states have (on average 1.2409638554216869) internal successors, (103), 91 states have internal predecessors, (103), 22 states have call successors, (22), 18 states have call predecessors, (22), 23 states have return successors, (29), 24 states have call predecessors, (29), 22 states have call successors, (29) [2022-11-19 07:04:35,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 154 transitions. [2022-11-19 07:04:35,110 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 154 transitions. Word has length 31 [2022-11-19 07:04:35,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:04:35,110 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 154 transitions. [2022-11-19 07:04:35,111 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), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-19 07:04:35,111 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 154 transitions. [2022-11-19 07:04:35,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-19 07:04:35,117 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:04:35,117 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, 1, 1] [2022-11-19 07:04:35,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:04:35,118 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:04:35,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:04:35,118 INFO L85 PathProgramCache]: Analyzing trace with hash 481504985, now seen corresponding path program 1 times [2022-11-19 07:04:35,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:04:35,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932456327] [2022-11-19 07:04:35,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:04:35,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:04:35,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:04:35,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:04:35,322 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:04:35,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932456327] [2022-11-19 07:04:35,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932456327] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:04:35,327 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:04:35,327 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 07:04:35,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132602370] [2022-11-19 07:04:35,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:04:35,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:04:35,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:04:35,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:04:35,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:04:35,332 INFO L87 Difference]: Start difference. First operand 129 states and 154 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-19 07:04:35,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:04:35,525 INFO L93 Difference]: Finished difference Result 379 states and 457 transitions. [2022-11-19 07:04:35,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-19 07:04:35,526 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 36 [2022-11-19 07:04:35,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:04:35,534 INFO L225 Difference]: With dead ends: 379 [2022-11-19 07:04:35,535 INFO L226 Difference]: Without dead ends: 252 [2022-11-19 07:04:35,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-19 07:04:35,542 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 55 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:04:35,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 331 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:04:35,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2022-11-19 07:04:35,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 240. [2022-11-19 07:04:35,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 153 states have (on average 1.1830065359477124) internal successors, (181), 166 states have internal predecessors, (181), 42 states have call successors, (42), 34 states have call predecessors, (42), 44 states have return successors, (56), 46 states have call predecessors, (56), 42 states have call successors, (56) [2022-11-19 07:04:35,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 279 transitions. [2022-11-19 07:04:35,603 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 279 transitions. Word has length 36 [2022-11-19 07:04:35,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:04:35,604 INFO L495 AbstractCegarLoop]: Abstraction has 240 states and 279 transitions. [2022-11-19 07:04:35,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-19 07:04:35,604 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 279 transitions. [2022-11-19 07:04:35,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-19 07:04:35,605 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:04:35,606 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, 1, 1, 1, 1, 1] [2022-11-19 07:04:35,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 07:04:35,606 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:04:35,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:04:35,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1896537818, now seen corresponding path program 1 times [2022-11-19 07:04:35,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:04:35,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398907964] [2022-11-19 07:04:35,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:04:35,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:04:35,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:04:35,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:04:35,749 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:04:35,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398907964] [2022-11-19 07:04:35,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398907964] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:04:35,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:04:35,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:04:35,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642601349] [2022-11-19 07:04:35,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:04:35,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:04:35,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:04:35,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:04:35,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:04:35,751 INFO L87 Difference]: Start difference. First operand 240 states and 279 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-19 07:04:36,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:04:36,027 INFO L93 Difference]: Finished difference Result 375 states and 441 transitions. [2022-11-19 07:04:36,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-19 07:04:36,028 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 39 [2022-11-19 07:04:36,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:04:36,030 INFO L225 Difference]: With dead ends: 375 [2022-11-19 07:04:36,030 INFO L226 Difference]: Without dead ends: 248 [2022-11-19 07:04:36,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-19 07:04:36,032 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 79 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:04:36,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 183 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:04:36,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2022-11-19 07:04:36,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 238. [2022-11-19 07:04:36,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 151 states have (on average 1.1589403973509933) internal successors, (175), 164 states have internal predecessors, (175), 42 states have call successors, (42), 34 states have call predecessors, (42), 44 states have return successors, (56), 46 states have call predecessors, (56), 42 states have call successors, (56) [2022-11-19 07:04:36,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 273 transitions. [2022-11-19 07:04:36,081 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 273 transitions. Word has length 39 [2022-11-19 07:04:36,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:04:36,083 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 273 transitions. [2022-11-19 07:04:36,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-19 07:04:36,084 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 273 transitions. [2022-11-19 07:04:36,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-19 07:04:36,088 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:04:36,088 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:04:36,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 07:04:36,088 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:04:36,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:04:36,089 INFO L85 PathProgramCache]: Analyzing trace with hash -975857525, now seen corresponding path program 1 times [2022-11-19 07:04:36,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:04:36,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248086863] [2022-11-19 07:04:36,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:04:36,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:04:36,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:04:36,225 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 07:04:36,225 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:04:36,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248086863] [2022-11-19 07:04:36,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248086863] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:04:36,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:04:36,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:04:36,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048696286] [2022-11-19 07:04:36,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:04:36,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:04:36,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:04:36,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:04:36,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:04:36,227 INFO L87 Difference]: Start difference. First operand 238 states and 273 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-19 07:04:36,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:04:36,317 INFO L93 Difference]: Finished difference Result 343 states and 402 transitions. [2022-11-19 07:04:36,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:04:36,318 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 44 [2022-11-19 07:04:36,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:04:36,321 INFO L225 Difference]: With dead ends: 343 [2022-11-19 07:04:36,321 INFO L226 Difference]: Without dead ends: 341 [2022-11-19 07:04:36,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:04:36,325 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 54 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:04:36,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 137 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:04:36,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2022-11-19 07:04:36,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 335. [2022-11-19 07:04:36,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 210 states have (on average 1.161904761904762) internal successors, (244), 229 states have internal predecessors, (244), 61 states have call successors, (61), 49 states have call predecessors, (61), 63 states have return successors, (86), 65 states have call predecessors, (86), 61 states have call successors, (86) [2022-11-19 07:04:36,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 391 transitions. [2022-11-19 07:04:36,406 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 391 transitions. Word has length 44 [2022-11-19 07:04:36,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:04:36,407 INFO L495 AbstractCegarLoop]: Abstraction has 335 states and 391 transitions. [2022-11-19 07:04:36,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-19 07:04:36,408 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 391 transitions. [2022-11-19 07:04:36,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-19 07:04:36,413 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:04:36,413 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-19 07:04:36,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 07:04:36,414 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:04:36,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:04:36,415 INFO L85 PathProgramCache]: Analyzing trace with hash 99191434, now seen corresponding path program 1 times [2022-11-19 07:04:36,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:04:36,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142625442] [2022-11-19 07:04:36,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:04:36,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:04:36,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:04:37,099 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 18 proven. 17 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-19 07:04:37,100 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:04:37,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142625442] [2022-11-19 07:04:37,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142625442] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:04:37,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468484706] [2022-11-19 07:04:37,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:04:37,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:04:37,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_844c461a-6338-4b4e-a623-68962bab4c5b/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:04:37,106 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_844c461a-6338-4b4e-a623-68962bab4c5b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:04:37,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_844c461a-6338-4b4e-a623-68962bab4c5b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:04:37,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:04:37,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-19 07:04:37,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:04:37,391 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-19 07:04:37,391 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:04:37,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1468484706] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:04:37,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:04:37,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [16] total 18 [2022-11-19 07:04:37,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583830383] [2022-11-19 07:04:37,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:04:37,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:04:37,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:04:37,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:04:37,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2022-11-19 07:04:37,394 INFO L87 Difference]: Start difference. First operand 335 states and 391 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-19 07:04:37,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:04:37,592 INFO L93 Difference]: Finished difference Result 667 states and 796 transitions. [2022-11-19 07:04:37,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:04:37,593 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 84 [2022-11-19 07:04:37,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:04:37,595 INFO L225 Difference]: With dead ends: 667 [2022-11-19 07:04:37,598 INFO L226 Difference]: Without dead ends: 334 [2022-11-19 07:04:37,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2022-11-19 07:04:37,600 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 50 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:04:37,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 193 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:04:37,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2022-11-19 07:04:37,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 328. [2022-11-19 07:04:37,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 209 states have (on average 1.1483253588516746) internal successors, (240), 228 states have internal predecessors, (240), 59 states have call successors, (59), 49 states have call predecessors, (59), 59 states have return successors, (82), 62 states have call predecessors, (82), 59 states have call successors, (82) [2022-11-19 07:04:37,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 381 transitions. [2022-11-19 07:04:37,642 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 381 transitions. Word has length 84 [2022-11-19 07:04:37,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:04:37,645 INFO L495 AbstractCegarLoop]: Abstraction has 328 states and 381 transitions. [2022-11-19 07:04:37,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-19 07:04:37,646 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 381 transitions. [2022-11-19 07:04:37,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-19 07:04:37,649 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:04:37,649 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:04:37,686 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_844c461a-6338-4b4e-a623-68962bab4c5b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 07:04:37,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_844c461a-6338-4b4e-a623-68962bab4c5b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:04:37,887 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:04:37,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:04:37,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1350633938, now seen corresponding path program 1 times [2022-11-19 07:04:37,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:04:37,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510779956] [2022-11-19 07:04:37,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:04:37,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:04:37,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:04:38,494 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 17 proven. 13 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-19 07:04:38,495 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:04:38,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510779956] [2022-11-19 07:04:38,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510779956] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:04:38,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218464411] [2022-11-19 07:04:38,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:04:38,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:04:38,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_844c461a-6338-4b4e-a623-68962bab4c5b/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:04:38,497 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_844c461a-6338-4b4e-a623-68962bab4c5b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:04:38,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_844c461a-6338-4b4e-a623-68962bab4c5b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 07:04:38,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:04:38,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 29 conjunts are in the unsatisfiable core [2022-11-19 07:04:38,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:04:38,872 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:04:38,872 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:04:38,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1218464411] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:04:38,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:04:38,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [16] total 24 [2022-11-19 07:04:38,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138402165] [2022-11-19 07:04:38,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:04:38,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-19 07:04:38,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:04:38,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-19 07:04:38,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=489, Unknown=0, NotChecked=0, Total=552 [2022-11-19 07:04:38,876 INFO L87 Difference]: Start difference. First operand 328 states and 381 transitions. Second operand has 11 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 3 states have call successors, (14), 3 states have call predecessors, (14), 6 states have return successors, (13), 6 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-19 07:04:39,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:04:39,307 INFO L93 Difference]: Finished difference Result 663 states and 797 transitions. [2022-11-19 07:04:39,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-19 07:04:39,308 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 3 states have call successors, (14), 3 states have call predecessors, (14), 6 states have return successors, (13), 6 states have call predecessors, (13), 3 states have call successors, (13) Word has length 88 [2022-11-19 07:04:39,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:04:39,313 INFO L225 Difference]: With dead ends: 663 [2022-11-19 07:04:39,313 INFO L226 Difference]: Without dead ends: 461 [2022-11-19 07:04:39,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=103, Invalid=889, Unknown=0, NotChecked=0, Total=992 [2022-11-19 07:04:39,317 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 58 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 662 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:04:39,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 662 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:04:39,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2022-11-19 07:04:39,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 448. [2022-11-19 07:04:39,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 286 states have (on average 1.132867132867133) internal successors, (324), 308 states have internal predecessors, (324), 81 states have call successors, (81), 67 states have call predecessors, (81), 80 states have return successors, (121), 85 states have call predecessors, (121), 81 states have call successors, (121) [2022-11-19 07:04:39,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 526 transitions. [2022-11-19 07:04:39,377 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 526 transitions. Word has length 88 [2022-11-19 07:04:39,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:04:39,378 INFO L495 AbstractCegarLoop]: Abstraction has 448 states and 526 transitions. [2022-11-19 07:04:39,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 3 states have call successors, (14), 3 states have call predecessors, (14), 6 states have return successors, (13), 6 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-19 07:04:39,378 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 526 transitions. [2022-11-19 07:04:39,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-19 07:04:39,381 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:04:39,382 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:04:39,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_844c461a-6338-4b4e-a623-68962bab4c5b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 07:04:39,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_844c461a-6338-4b4e-a623-68962bab4c5b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:04:39,588 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:04:39,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:04:39,588 INFO L85 PathProgramCache]: Analyzing trace with hash 363693813, now seen corresponding path program 1 times [2022-11-19 07:04:39,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:04:39,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434687755] [2022-11-19 07:04:39,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:04:39,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:04:39,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:04:40,133 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 18 proven. 15 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-19 07:04:40,133 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:04:40,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434687755] [2022-11-19 07:04:40,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434687755] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:04:40,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [361967587] [2022-11-19 07:04:40,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:04:40,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:04:40,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_844c461a-6338-4b4e-a623-68962bab4c5b/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:04:40,135 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_844c461a-6338-4b4e-a623-68962bab4c5b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:04:40,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_844c461a-6338-4b4e-a623-68962bab4c5b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 07:04:40,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:04:40,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-19 07:04:40,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:04:40,453 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-19 07:04:40,454 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:04:40,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [361967587] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:04:40,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:04:40,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [16] total 22 [2022-11-19 07:04:40,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597306798] [2022-11-19 07:04:40,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:04:40,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-19 07:04:40,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:04:40,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-19 07:04:40,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2022-11-19 07:04:40,456 INFO L87 Difference]: Start difference. First operand 448 states and 526 transitions. Second operand has 11 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (13), 5 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-19 07:04:40,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:04:40,934 INFO L93 Difference]: Finished difference Result 978 states and 1167 transitions. [2022-11-19 07:04:40,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-19 07:04:40,935 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (13), 5 states have call predecessors, (13), 2 states have call successors, (13) Word has length 91 [2022-11-19 07:04:40,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:04:40,936 INFO L225 Difference]: With dead ends: 978 [2022-11-19 07:04:40,936 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 07:04:40,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=109, Invalid=821, Unknown=0, NotChecked=0, Total=930 [2022-11-19 07:04:40,939 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 56 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:04:40,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 461 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-19 07:04:40,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 07:04:40,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 07:04:40,940 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) [2022-11-19 07:04:40,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 07:04:40,941 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 91 [2022-11-19 07:04:40,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:04:40,941 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 07:04:40,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (13), 5 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-19 07:04:40,942 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 07:04:40,942 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 07:04:40,944 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 07:04:40,955 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_844c461a-6338-4b4e-a623-68962bab4c5b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 07:04:41,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_844c461a-6338-4b4e-a623-68962bab4c5b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-19 07:04:41,152 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-19 07:04:44,349 INFO L895 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 919 926) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= 1 ~systemActive~0)) (= |old(~pumpRunning~0)| 0)) [2022-11-19 07:04:44,349 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 919 926) no Hoare annotation was computed. [2022-11-19 07:04:44,350 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 809 815) no Hoare annotation was computed. [2022-11-19 07:04:44,350 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 809 815) the Hoare annotation is: true [2022-11-19 07:04:44,350 INFO L895 garLoopResultBuilder]: At program point L857(line 857) the Hoare annotation is: (let ((.cse1 (not (= 1 ~systemActive~0))) (.cse0 (= |old(~pumpRunning~0)| 0))) (and (or (not .cse0) .cse1 (not (= ~methAndRunningLastTime~0 0))) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse0 (not (= ~methaneLevelCritical~0 0))))) [2022-11-19 07:04:44,350 INFO L895 garLoopResultBuilder]: At program point L853(line 853) the Hoare annotation is: (let ((.cse1 (not (= 1 ~systemActive~0))) (.cse0 (= |old(~pumpRunning~0)| 0))) (and (or (not .cse0) .cse1 (not (= ~methAndRunningLastTime~0 0))) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse0 (not (= ~methaneLevelCritical~0 0))))) [2022-11-19 07:04:44,350 INFO L899 garLoopResultBuilder]: For program point L851(lines 851 859) no Hoare annotation was computed. [2022-11-19 07:04:44,350 INFO L895 garLoopResultBuilder]: At program point L847(lines 847 864) the Hoare annotation is: (let ((.cse1 (not (= 1 ~systemActive~0))) (.cse0 (= |old(~pumpRunning~0)| 0))) (and (or (not .cse0) (= ~pumpRunning~0 0) .cse1 (not (= ~methAndRunningLastTime~0 0))) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse0 (not (= ~methaneLevelCritical~0 0))))) [2022-11-19 07:04:44,350 INFO L895 garLoopResultBuilder]: At program point L862(line 862) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| 0)) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or (not .cse1) (= ~pumpRunning~0 0) .cse0 (not (= ~methAndRunningLastTime~0 0))))) [2022-11-19 07:04:44,351 INFO L899 garLoopResultBuilder]: For program point L862-1(lines 843 867) no Hoare annotation was computed. [2022-11-19 07:04:44,351 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 843 867) the Hoare annotation is: (let ((.cse1 (not (= 1 ~systemActive~0))) (.cse0 (= |old(~pumpRunning~0)| 0))) (and (or (not .cse0) (= ~pumpRunning~0 0) .cse1 (not (= ~methAndRunningLastTime~0 0))) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse0 (not (= ~methaneLevelCritical~0 0))))) [2022-11-19 07:04:44,351 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 843 867) no Hoare annotation was computed. [2022-11-19 07:04:44,351 INFO L895 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 703 714) the Hoare annotation is: (let ((.cse2 (not (= 1 ~systemActive~0))) (.cse0 (= |old(~methaneLevelCritical~0)| 0)) (.cse1 (= ~methaneLevelCritical~0 0))) (and (or (not .cse0) .cse1 .cse2 (not (= ~methAndRunningLastTime~0 0))) (or (= ~pumpRunning~0 0) .cse2 .cse0 (not .cse1)))) [2022-11-19 07:04:44,351 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 703 714) no Hoare annotation was computed. [2022-11-19 07:04:44,351 INFO L899 garLoopResultBuilder]: For program point L796-1(lines 796 802) no Hoare annotation was computed. [2022-11-19 07:04:44,351 INFO L895 garLoopResultBuilder]: At program point L883(line 883) the Hoare annotation is: (let ((.cse1 (not (= 1 ~systemActive~0))) (.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (and (or (and .cse0 (= ~methaneLevelCritical~0 0) (= |timeShift_processEnvironment_~tmp~8#1| ~methaneLevelCritical~0)) .cse1 (= |old(~pumpRunning~0)| 0)) (or (not (= |old(~methAndRunningLastTime~0)| 0)) .cse1 (and .cse0 (= ~methAndRunningLastTime~0 0) (not (= ~pumpRunning~0 0)))))) [2022-11-19 07:04:44,352 INFO L895 garLoopResultBuilder]: At program point L879(line 879) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= |old(~pumpRunning~0)| 0))) (and (or .cse0 .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= |timeShift_processEnvironment_~tmp~8#1| 0)) (= |timeShift_processEnvironment_~tmp~8#1| ~methaneLevelCritical~0))) (or (not (= |old(~methAndRunningLastTime~0)| 0)) .cse0 (and (not .cse1) (= ~methAndRunningLastTime~0 0))))) [2022-11-19 07:04:44,352 INFO L895 garLoopResultBuilder]: At program point L875(line 875) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~methAndRunningLastTime~0)| 0)) .cse0 (and .cse1 (= ~methAndRunningLastTime~0 0) (not (= ~pumpRunning~0 0)))) (or .cse1 .cse0 (= |old(~pumpRunning~0)| 0)))) [2022-11-19 07:04:44,352 INFO L899 garLoopResultBuilder]: For program point L875-1(line 875) no Hoare annotation was computed. [2022-11-19 07:04:44,352 INFO L899 garLoopResultBuilder]: For program point L74(lines 74 84) no Hoare annotation was computed. [2022-11-19 07:04:44,352 INFO L895 garLoopResultBuilder]: At program point L70(lines 70 87) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 0)) (.cse0 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~0#1| ~methaneLevelCritical~0)) (.cse4 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse5 (= ~methAndRunningLastTime~0 0)) (.cse2 (not (= 1 ~systemActive~0)))) (and (let ((.cse1 (= |timeShift_processEnvironment_~tmp~8#1| ~methaneLevelCritical~0))) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~0#1| 0)) .cse2 (and .cse3 .cse0 .cse1) (= |old(~pumpRunning~0)| 0))) (or .cse4 .cse2 (and .cse5 .cse0) (and .cse3 .cse0)) (or .cse4 .cse5 .cse2 (not (= ~methaneLevelCritical~0 0))))) [2022-11-19 07:04:44,353 INFO L895 garLoopResultBuilder]: At program point L70-1(lines 62 90) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse3 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~0#1| ~methaneLevelCritical~0)) (.cse5 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse2 (= ~methAndRunningLastTime~0 0)) (.cse0 (not (= 1 ~systemActive~0)))) (and (let ((.cse4 (= |timeShift_processEnvironment_~tmp~8#1| ~methaneLevelCritical~0))) (or .cse0 (and .cse1 .cse2 .cse3 .cse4) (= |old(~pumpRunning~0)| 0) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2 .cse3 .cse4 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~0#1| 0)))) (or .cse5 .cse0 (and .cse2 .cse3) (and (not .cse1) .cse3 (= ~pumpRunning~0 |timeShift___utac_acc__Specification2_spec__2_~tmp___0~0#1|))) (or .cse5 .cse2 .cse0 (not (= ~methaneLevelCritical~0 0))))) [2022-11-19 07:04:44,353 INFO L895 garLoopResultBuilder]: At program point L888(line 888) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (= |old(~pumpRunning~0)| 0)) (or (not (= |old(~methAndRunningLastTime~0)| 0)) .cse0 (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))))) [2022-11-19 07:04:44,353 INFO L895 garLoopResultBuilder]: At program point L888-1(lines 869 893) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= |old(~pumpRunning~0)| 0))) (and (or (not (= |old(~methAndRunningLastTime~0)| 0)) (= ~methAndRunningLastTime~0 0) .cse0) (let ((.cse2 (= |timeShift_processEnvironment_~tmp~8#1| ~methaneLevelCritical~0))) (or .cse0 .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2) (and .cse3 .cse2))) (or .cse3 (= ~methaneLevelCritical~0 0) .cse0 .cse1))) [2022-11-19 07:04:44,353 INFO L899 garLoopResultBuilder]: For program point L789-1(lines 788 807) no Hoare annotation was computed. [2022-11-19 07:04:44,353 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 81) no Hoare annotation was computed. [2022-11-19 07:04:44,353 INFO L895 garLoopResultBuilder]: At program point L567(line 567) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (= |old(~pumpRunning~0)| 0)) (or (not (= |old(~methAndRunningLastTime~0)| 0)) .cse0))) [2022-11-19 07:04:44,353 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 785 808) the Hoare annotation is: (let ((.cse1 (not (= 1 ~systemActive~0))) (.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (and (or .cse0 .cse1 (= |old(~pumpRunning~0)| 0)) (or (not (= |old(~methAndRunningLastTime~0)| 0)) .cse1 (and .cse0 (= ~methAndRunningLastTime~0 0))))) [2022-11-19 07:04:44,354 INFO L899 garLoopResultBuilder]: For program point L877(lines 877 885) no Hoare annotation was computed. [2022-11-19 07:04:44,354 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 785 808) no Hoare annotation was computed. [2022-11-19 07:04:44,354 INFO L899 garLoopResultBuilder]: For program point L873(lines 873 890) no Hoare annotation was computed. [2022-11-19 07:04:44,354 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 567) no Hoare annotation was computed. [2022-11-19 07:04:44,354 INFO L895 garLoopResultBuilder]: At program point L68(line 68) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= |old(~pumpRunning~0)| 0))) (and (or (not (= |old(~methAndRunningLastTime~0)| 0)) (= ~methAndRunningLastTime~0 0) .cse0) (let ((.cse2 (= |timeShift_processEnvironment_~tmp~8#1| ~methaneLevelCritical~0))) (or .cse0 .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2) (and .cse3 .cse2))) (or .cse3 (= ~methaneLevelCritical~0 0) .cse0 .cse1))) [2022-11-19 07:04:44,354 INFO L899 garLoopResultBuilder]: For program point L68-1(line 68) no Hoare annotation was computed. [2022-11-19 07:04:44,354 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 94 123) no Hoare annotation was computed. [2022-11-19 07:04:44,354 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 94 123) the Hoare annotation is: true [2022-11-19 07:04:44,355 INFO L902 garLoopResultBuilder]: At program point L119(lines 94 123) the Hoare annotation is: true [2022-11-19 07:04:44,355 INFO L899 garLoopResultBuilder]: For program point L115(line 115) no Hoare annotation was computed. [2022-11-19 07:04:44,355 INFO L899 garLoopResultBuilder]: For program point L108(lines 108 112) no Hoare annotation was computed. [2022-11-19 07:04:44,355 INFO L902 garLoopResultBuilder]: At program point L108-1(lines 108 112) the Hoare annotation is: true [2022-11-19 07:04:44,355 INFO L902 garLoopResultBuilder]: At program point L104-2(lines 104 118) the Hoare annotation is: true [2022-11-19 07:04:44,355 INFO L902 garLoopResultBuilder]: At program point L100(line 100) the Hoare annotation is: true [2022-11-19 07:04:44,355 INFO L899 garLoopResultBuilder]: For program point L100-1(line 100) no Hoare annotation was computed. [2022-11-19 07:04:44,355 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 715 723) the Hoare annotation is: true [2022-11-19 07:04:44,355 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 715 723) no Hoare annotation was computed. [2022-11-19 07:04:44,355 INFO L895 garLoopResultBuilder]: At program point L663(lines 616 664) the Hoare annotation is: false [2022-11-19 07:04:44,356 INFO L899 garLoopResultBuilder]: For program point L618(lines 617 662) no Hoare annotation was computed. [2022-11-19 07:04:44,356 INFO L895 garLoopResultBuilder]: At program point L639(line 639) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (not (= ~pumpRunning~0 0)) .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (and (= ~methAndRunningLastTime~0 0) .cse0 .cse1))) [2022-11-19 07:04:44,356 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-19 07:04:44,356 INFO L895 garLoopResultBuilder]: At program point L660(lines 617 662) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (not (= ~pumpRunning~0 0)) .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (and (= ~methAndRunningLastTime~0 0) .cse0 .cse1))) [2022-11-19 07:04:44,356 INFO L899 garLoopResultBuilder]: For program point L627(lines 627 633) no Hoare annotation was computed. [2022-11-19 07:04:44,356 INFO L899 garLoopResultBuilder]: For program point L627-1(lines 627 633) no Hoare annotation was computed. [2022-11-19 07:04:44,356 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-19 07:04:44,356 INFO L895 garLoopResultBuilder]: At program point L653-2(lines 647 658) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~methAndRunningLastTime~0 0) .cse0 .cse1) (and (not (= ~pumpRunning~0 0)) .cse0 .cse1))) [2022-11-19 07:04:44,356 INFO L899 garLoopResultBuilder]: For program point L637(lines 637 643) no Hoare annotation was computed. [2022-11-19 07:04:44,357 INFO L899 garLoopResultBuilder]: For program point L637-1(lines 637 643) no Hoare annotation was computed. [2022-11-19 07:04:44,357 INFO L902 garLoopResultBuilder]: At program point L666(lines 607 670) the Hoare annotation is: true [2022-11-19 07:04:44,357 INFO L895 garLoopResultBuilder]: At program point L183(lines 183 190) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) [2022-11-19 07:04:44,357 INFO L895 garLoopResultBuilder]: At program point L629(line 629) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (not (= ~pumpRunning~0 0)) .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (and (= ~methAndRunningLastTime~0 0) .cse0 .cse1))) [2022-11-19 07:04:44,357 INFO L902 garLoopResultBuilder]: At program point L183-2(lines 183 190) the Hoare annotation is: true [2022-11-19 07:04:44,357 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 817 841) the Hoare annotation is: (let ((.cse1 (not (= 1 ~systemActive~0))) (.cse0 (= |old(~pumpRunning~0)| 0))) (and (or (not .cse0) (= ~pumpRunning~0 0) .cse1 (not (= ~methAndRunningLastTime~0 0))) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse0 (not (= ~methaneLevelCritical~0 0))))) [2022-11-19 07:04:44,357 INFO L895 garLoopResultBuilder]: At program point L907(line 907) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| 0)) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or (not .cse1) (= ~pumpRunning~0 0) .cse0 (not (= ~methAndRunningLastTime~0 0))))) [2022-11-19 07:04:44,358 INFO L895 garLoopResultBuilder]: At program point L907-1(line 907) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| 0)) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or (not .cse1) (= ~pumpRunning~0 0) .cse0 (not (= ~methAndRunningLastTime~0 0))))) [2022-11-19 07:04:44,358 INFO L895 garLoopResultBuilder]: At program point L831(line 831) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| 0)) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or (not .cse1) (= ~pumpRunning~0 0) .cse0 (not (= ~methAndRunningLastTime~0 0))))) [2022-11-19 07:04:44,358 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 817 841) no Hoare annotation was computed. [2022-11-19 07:04:44,358 INFO L899 garLoopResultBuilder]: For program point L825(lines 825 833) no Hoare annotation was computed. [2022-11-19 07:04:44,358 INFO L895 garLoopResultBuilder]: At program point L821(lines 821 838) the Hoare annotation is: (let ((.cse1 (not (= 1 ~systemActive~0))) (.cse0 (= |old(~pumpRunning~0)| 0))) (and (or (not .cse0) (= ~pumpRunning~0 0) .cse1 (not (= ~methAndRunningLastTime~0 0))) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse0 (not (= ~methaneLevelCritical~0 0))))) [2022-11-19 07:04:44,358 INFO L895 garLoopResultBuilder]: At program point L836(line 836) the Hoare annotation is: (let ((.cse1 (not (= 1 ~systemActive~0))) (.cse0 (= |old(~pumpRunning~0)| 0))) (and (or (not .cse0) .cse1 (not (= ~methAndRunningLastTime~0 0))) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse0 (not (= ~methaneLevelCritical~0 0))))) [2022-11-19 07:04:44,359 INFO L899 garLoopResultBuilder]: For program point L836-1(lines 817 841) no Hoare annotation was computed. [2022-11-19 07:04:44,366 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 691 702) no Hoare annotation was computed. [2022-11-19 07:04:44,366 INFO L902 garLoopResultBuilder]: At program point waterRiseENTRY(lines 691 702) the Hoare annotation is: true [2022-11-19 07:04:44,366 INFO L902 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 927 937) the Hoare annotation is: true [2022-11-19 07:04:44,367 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 927 937) no Hoare annotation was computed. [2022-11-19 07:04:44,367 INFO L902 garLoopResultBuilder]: At program point L932(line 932) the Hoare annotation is: true [2022-11-19 07:04:44,367 INFO L899 garLoopResultBuilder]: For program point L932-1(line 932) no Hoare annotation was computed. [2022-11-19 07:04:44,371 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:04:44,373 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 07:04:44,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:04:44 BoogieIcfgContainer [2022-11-19 07:04:44,401 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 07:04:44,402 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 07:04:44,402 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 07:04:44,402 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 07:04:44,402 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:04:33" (3/4) ... [2022-11-19 07:04:44,406 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 07:04:44,411 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-11-19 07:04:44,411 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-19 07:04:44,412 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-19 07:04:44,412 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-19 07:04:44,412 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-19 07:04:44,412 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-11-19 07:04:44,413 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-11-19 07:04:44,413 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-19 07:04:44,413 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2022-11-19 07:04:44,413 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2022-11-19 07:04:44,429 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 54 nodes and edges [2022-11-19 07:04:44,430 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-19 07:04:44,430 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-19 07:04:44,431 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 07:04:44,431 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 07:04:44,457 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || \old(pumpRunning) == 0) && ((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || (pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0)) [2022-11-19 07:04:44,458 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) && (((!(1 == systemActive) || \old(pumpRunning) == 0) || (pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical)) || (pumpRunning == 0 && tmp == methaneLevelCritical))) && (((pumpRunning == 0 || methaneLevelCritical == 0) || !(1 == systemActive)) || \old(pumpRunning) == 0) [2022-11-19 07:04:44,458 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(methAndRunningLastTime == 0)) && (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) [2022-11-19 07:04:44,459 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && tmp == methaneLevelCritical) && tmp == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && tmp == methaneLevelCritical) && tmp == methaneLevelCritical)) || \old(pumpRunning) == 0) && (((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || (methAndRunningLastTime == 0 && tmp == methaneLevelCritical)) || (pumpRunning == 0 && tmp == methaneLevelCritical))) && (((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) [2022-11-19 07:04:44,459 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(methAndRunningLastTime == 0)) && (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) [2022-11-19 07:04:44,459 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(1 == systemActive) || (((pumpRunning == 0 && methAndRunningLastTime == 0) && tmp == methaneLevelCritical) && tmp == methaneLevelCritical)) || \old(pumpRunning) == 0) || ((((pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0) && tmp == methaneLevelCritical) && tmp == methaneLevelCritical) && tmp == 0)) && (((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || (methAndRunningLastTime == 0 && tmp == methaneLevelCritical)) || ((!(pumpRunning == 0) && tmp == methaneLevelCritical) && pumpRunning == tmp___0))) && (((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) [2022-11-19 07:04:44,460 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 == systemActive) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(methAndRunningLastTime == 0)) [2022-11-19 07:04:44,460 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(1 == systemActive) || \old(pumpRunning) == 0) && (!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) [2022-11-19 07:04:44,498 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_844c461a-6338-4b4e-a623-68962bab4c5b/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 07:04:44,499 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 07:04:44,499 INFO L158 Benchmark]: Toolchain (without parser) took 12391.41ms. Allocated memory was 111.1MB in the beginning and 209.7MB in the end (delta: 98.6MB). Free memory was 66.4MB in the beginning and 84.8MB in the end (delta: -18.3MB). Peak memory consumption was 79.1MB. Max. memory is 16.1GB. [2022-11-19 07:04:44,500 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 111.1MB. Free memory is still 84.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:04:44,500 INFO L158 Benchmark]: CACSL2BoogieTranslator took 487.58ms. Allocated memory is still 111.1MB. Free memory was 66.2MB in the beginning and 78.7MB in the end (delta: -12.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-19 07:04:44,500 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.07ms. Allocated memory is still 111.1MB. Free memory was 78.3MB in the beginning and 76.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:04:44,501 INFO L158 Benchmark]: Boogie Preprocessor took 34.34ms. Allocated memory is still 111.1MB. Free memory was 76.1MB in the beginning and 74.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:04:44,501 INFO L158 Benchmark]: RCFGBuilder took 673.54ms. Allocated memory is still 111.1MB. Free memory was 74.5MB in the beginning and 47.6MB in the end (delta: 26.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-19 07:04:44,501 INFO L158 Benchmark]: TraceAbstraction took 11035.51ms. Allocated memory was 111.1MB in the beginning and 209.7MB in the end (delta: 98.6MB). Free memory was 46.9MB in the beginning and 91.0MB in the end (delta: -44.2MB). Peak memory consumption was 85.8MB. Max. memory is 16.1GB. [2022-11-19 07:04:44,502 INFO L158 Benchmark]: Witness Printer took 97.07ms. Allocated memory is still 209.7MB. Free memory was 90.0MB in the beginning and 84.8MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-19 07:04:44,504 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 111.1MB. Free memory is still 84.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 487.58ms. Allocated memory is still 111.1MB. Free memory was 66.2MB in the beginning and 78.7MB in the end (delta: -12.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.07ms. Allocated memory is still 111.1MB. Free memory was 78.3MB in the beginning and 76.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.34ms. Allocated memory is still 111.1MB. Free memory was 76.1MB in the beginning and 74.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 673.54ms. Allocated memory is still 111.1MB. Free memory was 74.5MB in the beginning and 47.6MB in the end (delta: 26.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 11035.51ms. Allocated memory was 111.1MB in the beginning and 209.7MB in the end (delta: 98.6MB). Free memory was 46.9MB in the beginning and 91.0MB in the end (delta: -44.2MB). Peak memory consumption was 85.8MB. Max. memory is 16.1GB. * Witness Printer took 97.07ms. Allocated memory is still 209.7MB. Free memory was 90.0MB in the beginning and 84.8MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. 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: 567]: 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 11 procedures, 75 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10.9s, OverallIterations: 10, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 587 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 561 mSDsluCounter, 2410 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1632 mSDsCounter, 137 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1461 IncrementalHoareTripleChecker+Invalid, 1598 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 137 mSolverCounterUnsat, 778 mSDtfsCounter, 1461 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 387 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 305 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=448occurred in iteration=9, InterpolantAutomatonStates: 77, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 10 MinimizatonAttempts, 53 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 42 LocationsWithAnnotation, 1131 PreInvPairs, 1317 NumberOfFragments, 930 HoareAnnotationTreeSize, 1131 FomulaSimplifications, 460 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 42 FomulaSimplificationsInter, 12762 FormulaSimplificationTreeSizeReductionInter, 2.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 731 NumberOfCodeBlocks, 731 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 718 ConstructedInterpolants, 0 QuantifiedInterpolants, 1754 SizeOfPredicates, 16 NumberOfNonLiveVariables, 1100 ConjunctsInSsa, 67 ConjunctsInUnsatCore, 13 InterpolantComputations, 10 PerfectInterpolantSequences, 219/264 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 847]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(methAndRunningLastTime == 0)) && (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 183]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 785]: Loop Invariant Derived loop invariant: ((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || \old(pumpRunning) == 0) && ((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || (pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0)) - InvariantResult [Line: 821]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(methAndRunningLastTime == 0)) && (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 567]: Loop Invariant Derived loop invariant: (!(1 == systemActive) || \old(pumpRunning) == 0) && (!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) - InvariantResult [Line: 94]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 617]: Loop Invariant Derived loop invariant: (((!(pumpRunning == 0) && 1 == systemActive) && !(methaneLevelCritical == 0)) && splverifierCounter == 0) || ((methAndRunningLastTime == 0 && 1 == systemActive) && splverifierCounter == 0) - InvariantResult [Line: 869]: Loop Invariant Derived loop invariant: (((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) && (((!(1 == systemActive) || \old(pumpRunning) == 0) || (pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical)) || (pumpRunning == 0 && tmp == methaneLevelCritical))) && (((pumpRunning == 0 || methaneLevelCritical == 0) || !(1 == systemActive)) || \old(pumpRunning) == 0) - InvariantResult [Line: 183]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && 1 == systemActive - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: (((((((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && tmp == methaneLevelCritical) && tmp == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && tmp == methaneLevelCritical) && tmp == methaneLevelCritical)) || \old(pumpRunning) == 0) && (((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || (methAndRunningLastTime == 0 && tmp == methaneLevelCritical)) || (pumpRunning == 0 && tmp == methaneLevelCritical))) && (((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 607]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: ((((!(1 == systemActive) || (((pumpRunning == 0 && methAndRunningLastTime == 0) && tmp == methaneLevelCritical) && tmp == methaneLevelCritical)) || \old(pumpRunning) == 0) || ((((pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0) && tmp == methaneLevelCritical) && tmp == methaneLevelCritical) && tmp == 0)) && (((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || (methAndRunningLastTime == 0 && tmp == methaneLevelCritical)) || ((!(pumpRunning == 0) && tmp == methaneLevelCritical) && pumpRunning == tmp___0))) && (((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 104]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 907]: Loop Invariant Derived loop invariant: ((!(1 == systemActive) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(methAndRunningLastTime == 0)) - InvariantResult [Line: 616]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2022-11-19 07:04:44,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_844c461a-6338-4b4e-a623-68962bab4c5b/bin/utaipan-I9t0OCRTmS/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