./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product62.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_7b24c16e-6f30-4ae2-b502-666359376133/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b24c16e-6f30-4ae2-b502-666359376133/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b24c16e-6f30-4ae2-b502-666359376133/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b24c16e-6f30-4ae2-b502-666359376133/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product62.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b24c16e-6f30-4ae2-b502-666359376133/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b24c16e-6f30-4ae2-b502-666359376133/bin/utaipan-7li7fVZpFI --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 4d13ffd2557e7d7902d8a5eac414f9fb7393252d85c14855e86000741be6847f --- 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-5e519f3 [2022-11-03 04:00:59,875 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 04:00:59,877 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 04:00:59,922 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 04:00:59,923 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 04:00:59,927 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 04:00:59,930 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 04:00:59,935 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 04:00:59,938 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 04:00:59,944 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 04:00:59,945 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 04:00:59,950 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 04:00:59,951 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 04:00:59,953 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 04:00:59,955 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 04:00:59,957 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 04:00:59,959 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 04:00:59,960 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 04:00:59,962 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 04:00:59,968 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 04:00:59,970 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 04:00:59,972 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 04:00:59,974 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 04:00:59,975 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 04:00:59,978 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 04:00:59,979 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 04:00:59,979 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 04:00:59,980 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 04:00:59,980 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 04:00:59,981 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 04:00:59,982 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 04:00:59,983 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 04:00:59,990 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 04:00:59,993 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 04:00:59,994 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 04:00:59,995 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 04:00:59,995 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 04:00:59,996 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 04:00:59,996 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 04:00:59,997 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 04:00:59,997 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 04:00:59,998 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b24c16e-6f30-4ae2-b502-666359376133/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 04:01:00,024 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 04:01:00,025 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 04:01:00,025 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 04:01:00,025 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 04:01:00,026 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 04:01:00,026 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 04:01:00,026 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 04:01:00,027 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 04:01:00,027 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 04:01:00,027 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 04:01:00,027 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 04:01:00,028 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 04:01:00,028 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 04:01:00,028 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 04:01:00,028 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 04:01:00,029 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 04:01:00,029 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 04:01:00,029 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 04:01:00,030 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 04:01:00,030 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 04:01:00,030 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 04:01:00,030 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 04:01:00,031 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 04:01:00,031 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 04:01:00,031 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 04:01:00,031 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 04:01:00,032 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 04:01:00,032 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 04:01:00,032 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 04:01:00,032 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 04:01:00,033 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 04:01:00,033 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 04:01:00,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:01:00,033 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 04:01:00,034 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 04:01:00,034 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 04:01:00,034 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 04:01:00,034 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 04:01:00,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 04:01:00,035 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 04:01:00,035 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 04:01:00,035 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_7b24c16e-6f30-4ae2-b502-666359376133/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b24c16e-6f30-4ae2-b502-666359376133/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d13ffd2557e7d7902d8a5eac414f9fb7393252d85c14855e86000741be6847f [2022-11-03 04:01:00,337 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 04:01:00,371 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 04:01:00,374 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 04:01:00,376 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 04:01:00,377 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 04:01:00,379 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b24c16e-6f30-4ae2-b502-666359376133/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/product-lines/minepump_spec3_product62.cil.c [2022-11-03 04:01:00,465 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b24c16e-6f30-4ae2-b502-666359376133/bin/utaipan-7li7fVZpFI/data/76066945d/c26a0bf5dda44ad6a30d282817e13cb9/FLAGd665da1bf [2022-11-03 04:01:01,069 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 04:01:01,083 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b24c16e-6f30-4ae2-b502-666359376133/sv-benchmarks/c/product-lines/minepump_spec3_product62.cil.c [2022-11-03 04:01:01,107 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b24c16e-6f30-4ae2-b502-666359376133/bin/utaipan-7li7fVZpFI/data/76066945d/c26a0bf5dda44ad6a30d282817e13cb9/FLAGd665da1bf [2022-11-03 04:01:01,350 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b24c16e-6f30-4ae2-b502-666359376133/bin/utaipan-7li7fVZpFI/data/76066945d/c26a0bf5dda44ad6a30d282817e13cb9 [2022-11-03 04:01:01,352 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 04:01:01,354 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 04:01:01,362 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 04:01:01,363 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 04:01:01,367 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 04:01:01,367 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:01:01" (1/1) ... [2022-11-03 04:01:01,370 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2582e9bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:01:01, skipping insertion in model container [2022-11-03 04:01:01,371 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:01:01" (1/1) ... [2022-11-03 04:01:01,380 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 04:01:01,425 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 04:01:01,712 WARN L230 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_7b24c16e-6f30-4ae2-b502-666359376133/sv-benchmarks/c/product-lines/minepump_spec3_product62.cil.c[1605,1618] [2022-11-03 04:01:01,922 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:01:01,940 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 04:01:01,960 WARN L230 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_7b24c16e-6f30-4ae2-b502-666359376133/sv-benchmarks/c/product-lines/minepump_spec3_product62.cil.c[1605,1618] [2022-11-03 04:01:02,065 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:01:02,092 INFO L208 MainTranslator]: Completed translation [2022-11-03 04:01:02,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:01:02 WrapperNode [2022-11-03 04:01:02,093 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 04:01:02,095 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 04:01:02,095 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 04:01:02,095 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 04:01:02,105 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:01:02" (1/1) ... [2022-11-03 04:01:02,137 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:01:02" (1/1) ... [2022-11-03 04:01:02,188 INFO L138 Inliner]: procedures = 58, calls = 162, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 283 [2022-11-03 04:01:02,189 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 04:01:02,190 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 04:01:02,190 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 04:01:02,190 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 04:01:02,201 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:01:02" (1/1) ... [2022-11-03 04:01:02,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:01:02" (1/1) ... [2022-11-03 04:01:02,204 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:01:02" (1/1) ... [2022-11-03 04:01:02,204 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:01:02" (1/1) ... [2022-11-03 04:01:02,211 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:01:02" (1/1) ... [2022-11-03 04:01:02,216 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:01:02" (1/1) ... [2022-11-03 04:01:02,218 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:01:02" (1/1) ... [2022-11-03 04:01:02,220 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:01:02" (1/1) ... [2022-11-03 04:01:02,223 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 04:01:02,224 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 04:01:02,224 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 04:01:02,224 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 04:01:02,225 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:01:02" (1/1) ... [2022-11-03 04:01:02,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:01:02,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b24c16e-6f30-4ae2-b502-666359376133/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:01:02,261 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b24c16e-6f30-4ae2-b502-666359376133/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 04:01:02,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b24c16e-6f30-4ae2-b502-666359376133/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 04:01:02,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 04:01:02,309 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-03 04:01:02,309 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-03 04:01:02,309 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-03 04:01:02,309 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-03 04:01:02,310 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-03 04:01:02,310 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-03 04:01:02,310 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-03 04:01:02,310 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-03 04:01:02,311 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-11-03 04:01:02,311 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-11-03 04:01:02,311 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-03 04:01:02,311 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-03 04:01:02,312 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-11-03 04:01:02,312 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-11-03 04:01:02,312 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-11-03 04:01:02,312 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-11-03 04:01:02,313 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-11-03 04:01:02,313 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-11-03 04:01:02,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 04:01:02,313 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-03 04:01:02,314 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-03 04:01:02,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 04:01:02,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 04:01:02,418 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 04:01:02,421 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 04:01:02,937 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 04:01:03,146 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 04:01:03,147 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-03 04:01:03,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:01:03 BoogieIcfgContainer [2022-11-03 04:01:03,150 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 04:01:03,153 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 04:01:03,154 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 04:01:03,161 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 04:01:03,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:01:01" (1/3) ... [2022-11-03 04:01:03,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b6af516 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:01:03, skipping insertion in model container [2022-11-03 04:01:03,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:01:02" (2/3) ... [2022-11-03 04:01:03,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b6af516 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:01:03, skipping insertion in model container [2022-11-03 04:01:03,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:01:03" (3/3) ... [2022-11-03 04:01:03,167 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product62.cil.c [2022-11-03 04:01:03,191 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 04:01:03,191 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 04:01:03,276 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 04:01:03,284 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;@766ca1c5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 04:01:03,285 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 04:01:03,292 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) [2022-11-03 04:01:03,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-03 04:01:03,303 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:01:03,307 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:01:03,308 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:01:03,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:01:03,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1270636600, now seen corresponding path program 1 times [2022-11-03 04:01:03,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:01:03,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348150403] [2022-11-03 04:01:03,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:01:03,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:01:03,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:01:03,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:01:03,685 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:01:03,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348150403] [2022-11-03 04:01:03,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348150403] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:01:03,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:01:03,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 04:01:03,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816301337] [2022-11-03 04:01:03,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:01:03,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 04:01:03,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:01:03,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 04:01:03,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 04:01:03,750 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) [2022-11-03 04:01:03,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:01:03,889 INFO L93 Difference]: Finished difference Result 148 states and 199 transitions. [2022-11-03 04:01:03,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 04:01:03,893 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 [2022-11-03 04:01:03,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:01:03,911 INFO L225 Difference]: With dead ends: 148 [2022-11-03 04:01:03,911 INFO L226 Difference]: Without dead ends: 70 [2022-11-03 04:01:03,917 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 [2022-11-03 04:01:03,922 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:01:03,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 77 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:01:03,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-11-03 04:01:03,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2022-11-03 04:01:03,982 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) [2022-11-03 04:01:03,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 90 transitions. [2022-11-03 04:01:03,995 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 90 transitions. Word has length 17 [2022-11-03 04:01:03,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:01:03,997 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 90 transitions. [2022-11-03 04:01:03,998 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) [2022-11-03 04:01:03,998 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 90 transitions. [2022-11-03 04:01:04,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-03 04:01:04,003 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:01:04,003 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:01:04,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 04:01:04,004 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:01:04,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:01:04,005 INFO L85 PathProgramCache]: Analyzing trace with hash -867172057, now seen corresponding path program 1 times [2022-11-03 04:01:04,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:01:04,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180024525] [2022-11-03 04:01:04,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:01:04,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:01:04,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:01:04,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:01:04,204 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:01:04,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180024525] [2022-11-03 04:01:04,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180024525] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:01:04,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:01:04,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:01:04,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94494423] [2022-11-03 04:01:04,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:01:04,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:01:04,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:01:04,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:01:04,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:01:04,222 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) [2022-11-03 04:01:04,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:01:04,284 INFO L93 Difference]: Finished difference Result 117 states and 151 transitions. [2022-11-03 04:01:04,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:01:04,285 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 [2022-11-03 04:01:04,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:01:04,286 INFO L225 Difference]: With dead ends: 117 [2022-11-03 04:01:04,287 INFO L226 Difference]: Without dead ends: 62 [2022-11-03 04:01:04,288 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 [2022-11-03 04:01:04,289 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 7 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 04:01:04,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 117 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 04:01:04,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-11-03 04:01:04,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-11-03 04:01:04,299 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) [2022-11-03 04:01:04,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 79 transitions. [2022-11-03 04:01:04,301 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 79 transitions. Word has length 18 [2022-11-03 04:01:04,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:01:04,301 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 79 transitions. [2022-11-03 04:01:04,302 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) [2022-11-03 04:01:04,302 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 79 transitions. [2022-11-03 04:01:04,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-03 04:01:04,303 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:01:04,303 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] [2022-11-03 04:01:04,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 04:01:04,304 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:01:04,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:01:04,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1813213069, now seen corresponding path program 1 times [2022-11-03 04:01:04,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:01:04,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277284053] [2022-11-03 04:01:04,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:01:04,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:01:04,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:01:04,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:01:04,587 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:01:04,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277284053] [2022-11-03 04:01:04,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277284053] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:01:04,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:01:04,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:01:04,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832016614] [2022-11-03 04:01:04,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:01:04,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:01:04,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:01:04,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:01:04,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:01:04,592 INFO L87 Difference]: Start difference. First operand 62 states and 79 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 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) [2022-11-03 04:01:04,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:01:04,771 INFO L93 Difference]: Finished difference Result 122 states and 157 transitions. [2022-11-03 04:01:04,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:01:04,772 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 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 [2022-11-03 04:01:04,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:01:04,773 INFO L225 Difference]: With dead ends: 122 [2022-11-03 04:01:04,773 INFO L226 Difference]: Without dead ends: 62 [2022-11-03 04:01:04,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:01:04,776 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 74 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:01:04,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 83 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:01:04,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-11-03 04:01:04,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-11-03 04:01:04,788 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) [2022-11-03 04:01:04,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 78 transitions. [2022-11-03 04:01:04,789 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 78 transitions. Word has length 20 [2022-11-03 04:01:04,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:01:04,790 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 78 transitions. [2022-11-03 04:01:04,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 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) [2022-11-03 04:01:04,790 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 78 transitions. [2022-11-03 04:01:04,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-03 04:01:04,792 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:01:04,792 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] [2022-11-03 04:01:04,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 04:01:04,792 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:01:04,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:01:04,793 INFO L85 PathProgramCache]: Analyzing trace with hash 347622461, now seen corresponding path program 1 times [2022-11-03 04:01:04,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:01:04,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387177527] [2022-11-03 04:01:04,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:01:04,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:01:04,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:01:04,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:01:04,920 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:01:04,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387177527] [2022-11-03 04:01:04,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387177527] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:01:04,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:01:04,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 04:01:04,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331157261] [2022-11-03 04:01:04,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:01:04,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:01:04,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:01:04,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:01:04,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:01:04,923 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) [2022-11-03 04:01:05,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:01:05,220 INFO L93 Difference]: Finished difference Result 195 states and 244 transitions. [2022-11-03 04:01:05,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:01:05,221 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 [2022-11-03 04:01:05,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:01:05,222 INFO L225 Difference]: With dead ends: 195 [2022-11-03 04:01:05,223 INFO L226 Difference]: Without dead ends: 135 [2022-11-03 04:01:05,224 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 [2022-11-03 04:01:05,225 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 134 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:01:05,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 180 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:01:05,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2022-11-03 04:01:05,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 129. [2022-11-03 04:01:05,250 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) [2022-11-03 04:01:05,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 154 transitions. [2022-11-03 04:01:05,251 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 154 transitions. Word has length 31 [2022-11-03 04:01:05,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:01:05,252 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 154 transitions. [2022-11-03 04:01:05,252 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) [2022-11-03 04:01:05,252 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 154 transitions. [2022-11-03 04:01:05,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-03 04:01:05,253 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:01:05,254 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] [2022-11-03 04:01:05,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 04:01:05,254 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:01:05,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:01:05,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1589821877, now seen corresponding path program 1 times [2022-11-03 04:01:05,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:01:05,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703802038] [2022-11-03 04:01:05,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:01:05,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:01:05,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:01:05,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:01:05,466 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:01:05,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703802038] [2022-11-03 04:01:05,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703802038] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:01:05,467 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:01:05,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 04:01:05,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482951782] [2022-11-03 04:01:05,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:01:05,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:01:05,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:01:05,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:01:05,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:01:05,470 INFO L87 Difference]: Start difference. First operand 129 states and 154 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 04:01:05,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:01:05,774 INFO L93 Difference]: Finished difference Result 430 states and 525 transitions. [2022-11-03 04:01:05,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 04:01:05,775 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 36 [2022-11-03 04:01:05,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:01:05,779 INFO L225 Difference]: With dead ends: 430 [2022-11-03 04:01:05,779 INFO L226 Difference]: Without dead ends: 303 [2022-11-03 04:01:05,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-03 04:01:05,782 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 113 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:01:05,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 306 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:01:05,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2022-11-03 04:01:05,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 286. [2022-11-03 04:01:05,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 184 states have (on average 1.1956521739130435) internal successors, (220), 199 states have internal predecessors, (220), 50 states have call successors, (50), 41 states have call predecessors, (50), 51 states have return successors, (67), 53 states have call predecessors, (67), 50 states have call successors, (67) [2022-11-03 04:01:05,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 337 transitions. [2022-11-03 04:01:05,843 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 337 transitions. Word has length 36 [2022-11-03 04:01:05,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:01:05,844 INFO L495 AbstractCegarLoop]: Abstraction has 286 states and 337 transitions. [2022-11-03 04:01:05,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 04:01:05,844 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 337 transitions. [2022-11-03 04:01:05,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-03 04:01:05,846 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:01:05,846 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] [2022-11-03 04:01:05,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 04:01:05,847 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:01:05,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:01:05,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1390594626, now seen corresponding path program 1 times [2022-11-03 04:01:05,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:01:05,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038947683] [2022-11-03 04:01:05,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:01:05,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:01:05,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:01:06,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:01:06,351 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:01:06,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038947683] [2022-11-03 04:01:06,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038947683] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:01:06,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:01:06,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-03 04:01:06,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813583051] [2022-11-03 04:01:06,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:01:06,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-03 04:01:06,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:01:06,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-03 04:01:06,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-03 04:01:06,355 INFO L87 Difference]: Start difference. First operand 286 states and 337 transitions. Second operand has 9 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-03 04:01:07,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:01:07,292 INFO L93 Difference]: Finished difference Result 652 states and 800 transitions. [2022-11-03 04:01:07,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-03 04:01:07,293 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) Word has length 39 [2022-11-03 04:01:07,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:01:07,308 INFO L225 Difference]: With dead ends: 652 [2022-11-03 04:01:07,308 INFO L226 Difference]: Without dead ends: 525 [2022-11-03 04:01:07,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2022-11-03 04:01:07,317 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 402 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-03 04:01:07,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 311 Invalid, 794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-03 04:01:07,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2022-11-03 04:01:07,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 492. [2022-11-03 04:01:07,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 321 states have (on average 1.2211838006230529) internal successors, (392), 346 states have internal predecessors, (392), 88 states have call successors, (88), 67 states have call predecessors, (88), 82 states have return successors, (116), 91 states have call predecessors, (116), 88 states have call successors, (116) [2022-11-03 04:01:07,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 596 transitions. [2022-11-03 04:01:07,471 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 596 transitions. Word has length 39 [2022-11-03 04:01:07,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:01:07,472 INFO L495 AbstractCegarLoop]: Abstraction has 492 states and 596 transitions. [2022-11-03 04:01:07,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-03 04:01:07,472 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 596 transitions. [2022-11-03 04:01:07,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-03 04:01:07,483 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:01:07,483 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] [2022-11-03 04:01:07,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 04:01:07,483 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:01:07,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:01:07,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1237992750, now seen corresponding path program 1 times [2022-11-03 04:01:07,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:01:07,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183298930] [2022-11-03 04:01:07,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:01:07,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:01:07,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:01:07,774 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 04:01:07,775 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:01:07,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183298930] [2022-11-03 04:01:07,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183298930] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:01:07,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [500360615] [2022-11-03 04:01:07,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:01:07,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:01:07,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b24c16e-6f30-4ae2-b502-666359376133/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:01:07,778 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b24c16e-6f30-4ae2-b502-666359376133/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:01:07,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b24c16e-6f30-4ae2-b502-666359376133/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 04:01:07,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:01:07,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 37 conjunts are in the unsatisfiable core [2022-11-03 04:01:07,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:01:08,270 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:01:08,271 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:01:09,233 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 04:01:09,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [500360615] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:01:09,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1493029220] [2022-11-03 04:01:09,254 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2022-11-03 04:01:09,254 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:01:09,258 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:01:09,263 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:01:09,264 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:01:11,388 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 294 for LOIs [2022-11-03 04:01:11,461 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 295 for LOIs [2022-11-03 04:01:16,671 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 292 for LOIs [2022-11-03 04:01:17,308 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 292 for LOIs [2022-11-03 04:01:18,151 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 293 for LOIs [2022-11-03 04:01:18,656 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 45 for LOIs [2022-11-03 04:01:18,663 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:02:12,470 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4691#(and (= (select |#length| 15) 25) (= (select (select |#memory_int| 19) 0) 79) (= (select (select |#memory_int| 17) 6) 0) (= 9 (select |#length| 5)) (= (select |#length| 9) 21) (= 30 (select |#length| 7)) (= 1 (select |#valid| 5)) (= |timeShift_getWaterLevel_~retValue_acc~4#1| |timeShift_getWaterLevel_#res#1|) (= (select |#length| 3) 12) (= 2 (select |#length| 20)) (= (select |#valid| 15) 1) (= (select (select |#memory_int| 22) 0) 79) (= 5 (select |#length| 18)) (= (select |#valid| 26) 1) (= (select (select |#memory_int| 27) 2) 0) (= |timeShift_getWaterLevel_~retValue_acc~4#1| ~waterLevel~0) (= (select (select |#memory_int| 26) 3) 0) (= (select |#valid| 9) 1) (= 13 (select |#length| 16)) (= (select |#length| 12) 25) (= (select (select |#memory_int| 18) 2) 73) (= (select |#length| 28) 2) (= (select |#valid| 11) 1) (= (select |#valid| 27) 1) (= 30 (select |#length| 4)) (= (select |#length| 22) 3) (= 4 (select |#length| 26)) (= 102 (select (select |#memory_int| 23) 1)) (= 31 (select |#length| 2)) (= ~head~0.offset 0) (= (select |#length| 21) 13) (= (select |#length| 27) 3) (= 2 (select |#length| 1)) (= (select |#length| 8) 9) (= ~pumpRunning~0 |timeShift_isPumpRunning_~retValue_acc~10#1|) (= 84 (select (select |#memory_int| 18) 3)) (= 41 (select (select |#memory_int| 27) 0)) (= ~methaneLevelCritical~0 |timeShift___utac_acc__Specification3_spec__1_~tmp~0#1|) (= (select |#valid| 3) 1) (= (select |#length| 19) 3) (= (select |#valid| 7) 1) (= |timeShift_getWaterLevel_#res#1| |timeShift___utac_acc__Specification3_spec__1_~tmp___0~0#1|) (= (select |#valid| 18) 1) (= 0 |timeShift___utac_acc__Specification3_spec__1_~tmp___1~0#1|) (= (select |#valid| 22) 1) (= 30 (select |#length| 13)) (= 117 (select (select |#memory_int| 24) 2)) (= 1 ~systemActive~0) (= |old(~pumpRunning~0)| 0) (= (select |#valid| 24) 1) (= 30 (select |#length| 10)) (= (select (select |#memory_int| 19) 2) 0) (= 3 (select |#length| 25)) (= (select |#valid| 12) 1) (= 82 (select (select |#memory_int| 18) 1)) (= (select (select |#memory_int| 25) 1) 110) (= (select |#valid| 28) 1) (= (select (select |#memory_int| 25) 2) 0) (= 102 (select (select |#memory_int| 23) 2)) (= (select (select |#memory_int| 28) 1) 0) (= (select |#valid| 4) 1) (<= 0 ~head~0.base) (= (select (select |#memory_int| 22) 2) 0) (= (select |#valid| 1) 1) (= (select |#valid| 20) 1) (= (select |#length| 6) 21) (= |timeShift___utac_acc__Specification3_spec__1_~tmp~0#1| 0) (= (select |#valid| 21) 1) (= 7 (select |#length| 24)) (= 58 (select (select |#memory_int| 24) 5)) (= (select (select |#memory_int| 24) 1) 80) (= (select (select |#memory_int| 26) 2) 102) (= (select (select |#memory_int| 24) 6) 0) (= |timeShift_isPumpRunning_#res#1| |timeShift_isPumpRunning_~retValue_acc~10#1|) (= (select (select |#memory_int| 18) 4) 0) (= (select |#valid| 14) 1) (= 109 (select (select |#memory_int| 24) 3)) (= |old(~waterLevel~0)| ~waterLevel~0) (= 77 (select (select |#memory_int| 17) 1)) (= 110 (select (select |#memory_int| 22) 1)) (= 9 (select |#length| 14)) (= (select (select |#memory_int| 17) 4) 104) (= (select |#valid| 0) 0) (= 79 (select (select |#memory_int| 26) 0)) (= (select (select |#memory_int| 28) 0) 10) (= (select |#valid| 25) 1) (<= ~head~0.base 0) (= 112 (select (select |#memory_int| 24) 4)) (= (select (select |#memory_int| 23) 3) 0) (= 116 (select (select |#memory_int| 17) 3)) (= (select |#valid| 2) 1) (= (select (select |#memory_int| 20) 0) 41) (= |#NULL.offset| 0) (= 9 (select |#length| 11)) (= 44 (select (select |#memory_int| 24) 0)) (= (select (select |#memory_int| 26) 1) 102) (= (select (select |#memory_int| 1) 0) 48) (= 67 (select (select |#memory_int| 18) 0)) (= (select |#valid| 23) 1) (= 4 (select |#length| 23)) (= (select (select |#memory_int| 23) 0) 79) (= (select (select |#memory_int| 27) 1) 32) (= 101 (select (select |#memory_int| 17) 2)) (= (select |#valid| 19) 1) (= (select (select |#memory_int| 19) 1) 75) (= (select (select |#memory_int| 20) 1) 0) (= 44 (select (select |#memory_int| 17) 0)) (= (select |#valid| 16) 1) (= |timeShift_isPumpRunning_#res#1| |timeShift___utac_acc__Specification3_spec__1_~tmp___1~0#1|) (= (select |#valid| 6) 1) (= (select (select |#memory_int| 1) 1) 0) (= (select |#length| 17) 7) (= (select |#valid| 17) 1) (= (select |#valid| 10) 1) (= (select |#valid| 8) 1) (= (select (select |#memory_int| 17) 5) 58) (= (select |#valid| 13) 1) (< 0 |#StackHeapBarrier|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0) (= 2 |timeShift___utac_acc__Specification3_spec__1_~tmp___0~0#1|) (= (select (select |#memory_int| 25) 0) 79))' at error location [2022-11-03 04:02:12,470 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 04:02:12,471 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:02:12,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 12] total 26 [2022-11-03 04:02:12,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241566876] [2022-11-03 04:02:12,471 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:02:12,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-03 04:02:12,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:02:12,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-03 04:02:12,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=317, Invalid=2545, Unknown=0, NotChecked=0, Total=2862 [2022-11-03 04:02:12,475 INFO L87 Difference]: Start difference. First operand 492 states and 596 transitions. Second operand has 26 states, 20 states have (on average 3.1) internal successors, (62), 20 states have internal predecessors, (62), 5 states have call successors, (14), 3 states have call predecessors, (14), 12 states have return successors, (17), 13 states have call predecessors, (17), 5 states have call successors, (17) [2022-11-03 04:02:16,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:02:16,991 INFO L93 Difference]: Finished difference Result 2198 states and 2752 transitions. [2022-11-03 04:02:16,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-11-03 04:02:16,992 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 20 states have (on average 3.1) internal successors, (62), 20 states have internal predecessors, (62), 5 states have call successors, (14), 3 states have call predecessors, (14), 12 states have return successors, (17), 13 states have call predecessors, (17), 5 states have call successors, (17) Word has length 44 [2022-11-03 04:02:16,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:02:17,013 INFO L225 Difference]: With dead ends: 2198 [2022-11-03 04:02:17,018 INFO L226 Difference]: Without dead ends: 1834 [2022-11-03 04:02:17,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 89 SyntacticMatches, 7 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5090 ImplicationChecksByTransitivity, 56.3s TimeCoverageRelationStatistics Valid=1134, Invalid=12206, Unknown=0, NotChecked=0, Total=13340 [2022-11-03 04:02:17,027 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 1158 mSDsluCounter, 1412 mSDsCounter, 0 mSdLazyCounter, 1996 mSolverCounterSat, 775 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1176 SdHoareTripleChecker+Valid, 1442 SdHoareTripleChecker+Invalid, 2771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 775 IncrementalHoareTripleChecker+Valid, 1996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-03 04:02:17,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1176 Valid, 1442 Invalid, 2771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [775 Valid, 1996 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-03 04:02:17,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1834 states. [2022-11-03 04:02:17,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1834 to 1570. [2022-11-03 04:02:17,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1047 states have (on average 1.20152817574021) internal successors, (1258), 1097 states have internal predecessors, (1258), 272 states have call successors, (272), 216 states have call predecessors, (272), 250 states have return successors, (371), 281 states have call predecessors, (371), 272 states have call successors, (371) [2022-11-03 04:02:17,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 1901 transitions. [2022-11-03 04:02:17,253 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 1901 transitions. Word has length 44 [2022-11-03 04:02:17,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:02:17,253 INFO L495 AbstractCegarLoop]: Abstraction has 1570 states and 1901 transitions. [2022-11-03 04:02:17,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 20 states have (on average 3.1) internal successors, (62), 20 states have internal predecessors, (62), 5 states have call successors, (14), 3 states have call predecessors, (14), 12 states have return successors, (17), 13 states have call predecessors, (17), 5 states have call successors, (17) [2022-11-03 04:02:17,253 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 1901 transitions. [2022-11-03 04:02:17,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-03 04:02:17,255 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:02:17,255 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, 1, 1, 1] [2022-11-03 04:02:17,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b24c16e-6f30-4ae2-b502-666359376133/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 04:02:17,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b24c16e-6f30-4ae2-b502-666359376133/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-03 04:02:17,484 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:02:17,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:02:17,485 INFO L85 PathProgramCache]: Analyzing trace with hash -260228681, now seen corresponding path program 1 times [2022-11-03 04:02:17,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:02:17,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289032088] [2022-11-03 04:02:17,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:17,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:02:17,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:02:17,682 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 04:02:17,682 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:02:17,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289032088] [2022-11-03 04:02:17,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289032088] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:02:17,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:02:17,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-03 04:02:17,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731223375] [2022-11-03 04:02:17,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:02:17,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-03 04:02:17,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:02:17,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-03 04:02:17,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:02:17,685 INFO L87 Difference]: Start difference. First operand 1570 states and 1901 transitions. Second operand has 10 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-03 04:02:18,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:02:18,678 INFO L93 Difference]: Finished difference Result 3842 states and 4774 transitions. [2022-11-03 04:02:18,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-03 04:02:18,679 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 47 [2022-11-03 04:02:18,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:02:18,695 INFO L225 Difference]: With dead ends: 3842 [2022-11-03 04:02:18,695 INFO L226 Difference]: Without dead ends: 2725 [2022-11-03 04:02:18,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2022-11-03 04:02:18,704 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 194 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 825 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-03 04:02:18,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 178 Invalid, 973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 825 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-03 04:02:18,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2725 states. [2022-11-03 04:02:19,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2725 to 2622. [2022-11-03 04:02:19,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2622 states, 1732 states have (on average 1.1697459584295613) internal successors, (2026), 1815 states have internal predecessors, (2026), 466 states have call successors, (466), 370 states have call predecessors, (466), 423 states have return successors, (644), 479 states have call predecessors, (644), 466 states have call successors, (644) [2022-11-03 04:02:19,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2622 states to 2622 states and 3136 transitions. [2022-11-03 04:02:19,034 INFO L78 Accepts]: Start accepts. Automaton has 2622 states and 3136 transitions. Word has length 47 [2022-11-03 04:02:19,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:02:19,035 INFO L495 AbstractCegarLoop]: Abstraction has 2622 states and 3136 transitions. [2022-11-03 04:02:19,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-03 04:02:19,036 INFO L276 IsEmpty]: Start isEmpty. Operand 2622 states and 3136 transitions. [2022-11-03 04:02:19,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-03 04:02:19,042 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:02:19,042 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-11-03 04:02:19,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 04:02:19,043 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:02:19,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:02:19,043 INFO L85 PathProgramCache]: Analyzing trace with hash -874487163, now seen corresponding path program 1 times [2022-11-03 04:02:19,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:02:19,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990851395] [2022-11-03 04:02:19,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:19,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:02:19,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:02:19,195 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-03 04:02:19,195 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:02:19,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990851395] [2022-11-03 04:02:19,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990851395] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:02:19,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [442992618] [2022-11-03 04:02:19,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:19,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:02:19,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b24c16e-6f30-4ae2-b502-666359376133/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:02:19,200 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b24c16e-6f30-4ae2-b502-666359376133/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:02:19,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b24c16e-6f30-4ae2-b502-666359376133/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 04:02:19,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:02:19,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-03 04:02:19,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:02:19,577 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 12 proven. 11 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-03 04:02:19,578 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:02:20,008 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-11-03 04:02:20,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [442992618] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:02:20,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1981724464] [2022-11-03 04:02:20,016 INFO L159 IcfgInterpreter]: Started Sifa with 51 locations of interest [2022-11-03 04:02:20,016 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:02:20,017 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:02:20,017 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:02:20,017 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:02:27,733 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 294 for LOIs [2022-11-03 04:02:27,772 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 303 for LOIs [2022-11-03 04:02:30,841 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 303 for LOIs [2022-11-03 04:02:33,146 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 303 for LOIs [2022-11-03 04:02:36,709 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 303 for LOIs [2022-11-03 04:02:37,236 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 316 for LOIs [2022-11-03 04:02:37,309 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:02:51,704 WARN L234 SmtUtils]: Spent 5.18s on a formula simplification. DAG size of input: 348 DAG size of output: 310 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:02:57,395 WARN L234 SmtUtils]: Spent 5.23s on a formula simplification. DAG size of input: 352 DAG size of output: 315 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:03:03,049 WARN L234 SmtUtils]: Spent 5.17s on a formula simplification. DAG size of input: 350 DAG size of output: 313 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:03:12,308 WARN L234 SmtUtils]: Spent 8.86s on a formula simplification. DAG size of input: 366 DAG size of output: 329 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:03:37,341 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '20975#(and (= |timeShift_getWaterLevel_~retValue_acc~4#1| |timeShift_getWaterLevel_#res#1|) (= |timeShift_getWaterLevel_~retValue_acc~4#1| ~waterLevel~0) (= ~head~0.offset 0) (= ~pumpRunning~0 |timeShift_isPumpRunning_~retValue_acc~10#1|) (= ~methaneLevelCritical~0 |timeShift___utac_acc__Specification3_spec__1_~tmp~0#1|) (= |timeShift_getWaterLevel_#res#1| |timeShift___utac_acc__Specification3_spec__1_~tmp___0~0#1|) (= 0 |timeShift___utac_acc__Specification3_spec__1_~tmp___1~0#1|) (= 1 ~systemActive~0) (= |old(~pumpRunning~0)| 0) (<= 2 |old(~waterLevel~0)|) (= |timeShift___utac_acc__Specification3_spec__1_~tmp~0#1| 0) (= |timeShift_isPumpRunning_#res#1| |timeShift_isPumpRunning_~retValue_acc~10#1|) (= ~head~0.base 0) (= |#NULL.offset| 0) (= |timeShift_isPumpRunning_#res#1| |timeShift___utac_acc__Specification3_spec__1_~tmp___1~0#1|) (<= 0 |#StackHeapBarrier|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0) (= 2 |timeShift___utac_acc__Specification3_spec__1_~tmp___0~0#1|))' at error location [2022-11-03 04:03:37,342 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 04:03:37,342 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:03:37,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 8] total 19 [2022-11-03 04:03:37,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756688211] [2022-11-03 04:03:37,342 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:03:37,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-03 04:03:37,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:03:37,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-03 04:03:37,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=265, Invalid=1897, Unknown=0, NotChecked=0, Total=2162 [2022-11-03 04:03:37,345 INFO L87 Difference]: Start difference. First operand 2622 states and 3136 transitions. Second operand has 19 states, 17 states have (on average 6.411764705882353) internal successors, (109), 18 states have internal predecessors, (109), 9 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (25), 10 states have call predecessors, (25), 9 states have call successors, (25) [2022-11-03 04:03:45,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:03:45,898 INFO L93 Difference]: Finished difference Result 7400 states and 9145 transitions. [2022-11-03 04:03:45,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2022-11-03 04:03:45,899 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 6.411764705882353) internal successors, (109), 18 states have internal predecessors, (109), 9 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (25), 10 states have call predecessors, (25), 9 states have call successors, (25) Word has length 75 [2022-11-03 04:03:45,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:03:45,935 INFO L225 Difference]: With dead ends: 7400 [2022-11-03 04:03:45,935 INFO L226 Difference]: Without dead ends: 4780 [2022-11-03 04:03:45,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 202 SyntacticMatches, 10 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8752 ImplicationChecksByTransitivity, 64.5s TimeCoverageRelationStatistics Valid=2013, Invalid=20337, Unknown=0, NotChecked=0, Total=22350 [2022-11-03 04:03:45,956 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 1502 mSDsluCounter, 1154 mSDsCounter, 0 mSdLazyCounter, 3868 mSolverCounterSat, 1397 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1502 SdHoareTripleChecker+Valid, 1123 SdHoareTripleChecker+Invalid, 5265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1397 IncrementalHoareTripleChecker+Valid, 3868 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-03 04:03:45,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1502 Valid, 1123 Invalid, 5265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1397 Valid, 3868 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-03 04:03:45,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4780 states. [2022-11-03 04:03:46,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4780 to 3807. [2022-11-03 04:03:46,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3807 states, 2505 states have (on average 1.1373253493013973) internal successors, (2849), 2624 states have internal predecessors, (2849), 669 states have call successors, (669), 555 states have call predecessors, (669), 632 states have return successors, (939), 693 states have call predecessors, (939), 669 states have call successors, (939) [2022-11-03 04:03:46,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3807 states to 3807 states and 4457 transitions. [2022-11-03 04:03:46,650 INFO L78 Accepts]: Start accepts. Automaton has 3807 states and 4457 transitions. Word has length 75 [2022-11-03 04:03:46,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:03:46,651 INFO L495 AbstractCegarLoop]: Abstraction has 3807 states and 4457 transitions. [2022-11-03 04:03:46,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 6.411764705882353) internal successors, (109), 18 states have internal predecessors, (109), 9 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (25), 10 states have call predecessors, (25), 9 states have call successors, (25) [2022-11-03 04:03:46,651 INFO L276 IsEmpty]: Start isEmpty. Operand 3807 states and 4457 transitions. [2022-11-03 04:03:46,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-03 04:03:46,655 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:03:46,656 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-11-03 04:03:46,706 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b24c16e-6f30-4ae2-b502-666359376133/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 04:03:46,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b24c16e-6f30-4ae2-b502-666359376133/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:03:46,870 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:03:46,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:03:46,870 INFO L85 PathProgramCache]: Analyzing trace with hash -376826429, now seen corresponding path program 1 times [2022-11-03 04:03:46,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:03:46,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991514113] [2022-11-03 04:03:46,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:46,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:03:46,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:47,399 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 17 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-03 04:03:47,400 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:03:47,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991514113] [2022-11-03 04:03:47,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991514113] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:03:47,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1140600501] [2022-11-03 04:03:47,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:47,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:03:47,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b24c16e-6f30-4ae2-b502-666359376133/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:03:47,402 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b24c16e-6f30-4ae2-b502-666359376133/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:03:47,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b24c16e-6f30-4ae2-b502-666359376133/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 04:03:47,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:47,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-03 04:03:47,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:03:47,685 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-03 04:03:47,685 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:03:47,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1140600501] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:03:47,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 04:03:47,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2022-11-03 04:03:47,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846335605] [2022-11-03 04:03:47,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:03:47,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:03:47,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:03:47,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:03:47,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-11-03 04:03:47,689 INFO L87 Difference]: Start difference. First operand 3807 states and 4457 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-03 04:03:48,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:03:48,195 INFO L93 Difference]: Finished difference Result 5560 states and 6559 transitions. [2022-11-03 04:03:48,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 04:03:48,196 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 83 [2022-11-03 04:03:48,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:03:48,210 INFO L225 Difference]: With dead ends: 5560 [2022-11-03 04:03:48,210 INFO L226 Difference]: Without dead ends: 2143 [2022-11-03 04:03:48,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2022-11-03 04:03:48,222 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 51 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:03:48,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 291 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:03:48,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2143 states. [2022-11-03 04:03:48,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2143 to 2131. [2022-11-03 04:03:48,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2131 states, 1408 states have (on average 1.1257102272727273) internal successors, (1585), 1480 states have internal predecessors, (1585), 383 states have call successors, (383), 327 states have call predecessors, (383), 339 states have return successors, (498), 371 states have call predecessors, (498), 383 states have call successors, (498) [2022-11-03 04:03:48,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2131 states to 2131 states and 2466 transitions. [2022-11-03 04:03:48,637 INFO L78 Accepts]: Start accepts. Automaton has 2131 states and 2466 transitions. Word has length 83 [2022-11-03 04:03:48,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:03:48,638 INFO L495 AbstractCegarLoop]: Abstraction has 2131 states and 2466 transitions. [2022-11-03 04:03:48,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-03 04:03:48,639 INFO L276 IsEmpty]: Start isEmpty. Operand 2131 states and 2466 transitions. [2022-11-03 04:03:48,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-03 04:03:48,641 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:03:48,642 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-11-03 04:03:48,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b24c16e-6f30-4ae2-b502-666359376133/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-03 04:03:48,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b24c16e-6f30-4ae2-b502-666359376133/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:03:48,868 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:03:48,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:03:48,868 INFO L85 PathProgramCache]: Analyzing trace with hash -162338619, now seen corresponding path program 2 times [2022-11-03 04:03:48,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:03:48,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294771614] [2022-11-03 04:03:48,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:48,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:03:48,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:49,318 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:03:49,318 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:03:49,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294771614] [2022-11-03 04:03:49,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294771614] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:03:49,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:03:49,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-03 04:03:49,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622659608] [2022-11-03 04:03:49,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:03:49,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-03 04:03:49,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:03:49,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-03 04:03:49,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-03 04:03:49,322 INFO L87 Difference]: Start difference. First operand 2131 states and 2466 transitions. Second operand has 13 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 10 states have internal predecessors, (42), 2 states have call successors, (10), 1 states have call predecessors, (10), 4 states have return successors, (12), 6 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-03 04:03:50,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:03:50,531 INFO L93 Difference]: Finished difference Result 3461 states and 4067 transitions. [2022-11-03 04:03:50,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-03 04:03:50,532 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 10 states have internal predecessors, (42), 2 states have call successors, (10), 1 states have call predecessors, (10), 4 states have return successors, (12), 6 states have call predecessors, (12), 2 states have call successors, (12) Word has length 83 [2022-11-03 04:03:50,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:03:50,534 INFO L225 Difference]: With dead ends: 3461 [2022-11-03 04:03:50,534 INFO L226 Difference]: Without dead ends: 0 [2022-11-03 04:03:50,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=162, Invalid=708, Unknown=0, NotChecked=0, Total=870 [2022-11-03 04:03:50,545 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 321 mSDsluCounter, 864 mSDsCounter, 0 mSdLazyCounter, 671 mSolverCounterSat, 192 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 855 SdHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 192 IncrementalHoareTripleChecker+Valid, 671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-03 04:03:50,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 855 Invalid, 863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [192 Valid, 671 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-03 04:03:50,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-03 04:03:50,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-03 04:03:50,546 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) [2022-11-03 04:03:50,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-03 04:03:50,547 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 83 [2022-11-03 04:03:50,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:03:50,548 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-03 04:03:50,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 10 states have internal predecessors, (42), 2 states have call successors, (10), 1 states have call predecessors, (10), 4 states have return successors, (12), 6 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-03 04:03:50,548 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-03 04:03:50,548 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-03 04:03:50,551 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 04:03:50,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-03 04:03:50,554 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-03 04:04:16,086 INFO L895 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 751 758) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (< ~waterLevel~0 2)) (= |old(~pumpRunning~0)| 0) (= 0 ~systemActive~0)) [2022-11-03 04:04:16,086 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 751 758) no Hoare annotation was computed. [2022-11-03 04:04:16,086 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 641 647) no Hoare annotation was computed. [2022-11-03 04:04:16,086 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 641 647) the Hoare annotation is: true [2022-11-03 04:04:16,087 INFO L895 garLoopResultBuilder]: At program point L694(line 694) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= |old(~pumpRunning~0)| 0)) (.cse2 (= 0 ~systemActive~0))) (and (or (not .cse0) .cse1 (not (= 2 ~waterLevel~0)) .cse2) (or .cse1 (not (<= ~waterLevel~0 1)) .cse2) (or (not (< ~waterLevel~0 2)) .cse0 .cse2))) [2022-11-03 04:04:16,087 INFO L899 garLoopResultBuilder]: For program point L694-1(lines 675 699) no Hoare annotation was computed. [2022-11-03 04:04:16,087 INFO L895 garLoopResultBuilder]: At program point L689(line 689) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (< ~waterLevel~0 2)) .cse0) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (< ~waterLevel~0 3))))) [2022-11-03 04:04:16,087 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 675 699) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 2 ~waterLevel~0)) .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (< ~waterLevel~0 2)) .cse0))) [2022-11-03 04:04:16,088 INFO L895 garLoopResultBuilder]: At program point L685(line 685) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (< ~waterLevel~0 2)) .cse0) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (< ~waterLevel~0 3))))) [2022-11-03 04:04:16,088 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 675 699) no Hoare annotation was computed. [2022-11-03 04:04:16,088 INFO L899 garLoopResultBuilder]: For program point L683(lines 683 691) no Hoare annotation was computed. [2022-11-03 04:04:16,088 INFO L895 garLoopResultBuilder]: At program point L679(lines 679 696) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 2 ~waterLevel~0)) .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (< ~waterLevel~0 2)) .cse0))) [2022-11-03 04:04:16,089 INFO L895 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 494 505) the Hoare annotation is: (or (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 0 ~systemActive~0) (not (< ~waterLevel~0 3))) [2022-11-03 04:04:16,089 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 494 505) no Hoare annotation was computed. [2022-11-03 04:04:16,089 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 931 960) no Hoare annotation was computed. [2022-11-03 04:04:16,089 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 931 960) the Hoare annotation is: true [2022-11-03 04:04:16,089 INFO L902 garLoopResultBuilder]: At program point L956(lines 931 960) the Hoare annotation is: true [2022-11-03 04:04:16,090 INFO L899 garLoopResultBuilder]: For program point L952(line 952) no Hoare annotation was computed. [2022-11-03 04:04:16,090 INFO L899 garLoopResultBuilder]: For program point L945(lines 945 949) no Hoare annotation was computed. [2022-11-03 04:04:16,090 INFO L902 garLoopResultBuilder]: At program point L945-1(lines 945 949) the Hoare annotation is: true [2022-11-03 04:04:16,090 INFO L902 garLoopResultBuilder]: At program point L941-2(lines 941 955) the Hoare annotation is: true [2022-11-03 04:04:16,090 INFO L902 garLoopResultBuilder]: At program point L937(line 937) the Hoare annotation is: true [2022-11-03 04:04:16,090 INFO L899 garLoopResultBuilder]: For program point L937-1(line 937) no Hoare annotation was computed. [2022-11-03 04:04:16,091 INFO L899 garLoopResultBuilder]: For program point L81(lines 81 87) no Hoare annotation was computed. [2022-11-03 04:04:16,091 INFO L895 garLoopResultBuilder]: At program point L77(lines 77 90) the Hoare annotation is: (let ((.cse1 (= 0 ~systemActive~0)) (.cse7 (= |old(~pumpRunning~0)| 0))) (let ((.cse6 (not .cse7)) (.cse3 (= ~pumpRunning~0 0)) (.cse4 (= ~methaneLevelCritical~0 0)) (.cse11 (= ~methaneLevelCritical~0 |timeShift___utac_acc__Specification3_spec__1_~tmp~0#1|)) (.cse5 (<= |timeShift___utac_acc__Specification3_spec__1_~tmp___0~0#1| 1)) (.cse12 (< ~waterLevel~0 2)) (.cse13 (not .cse1))) (let ((.cse8 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not .cse3) .cse4 .cse11 .cse5 .cse12 .cse13)) (.cse9 (and .cse6 .cse3 .cse4 .cse11 .cse5 .cse12 .cse13)) (.cse10 (not (< |old(~waterLevel~0)| 3))) (.cse0 (not (= |old(~waterLevel~0)| 2))) (.cse2 (= ~waterLevel~0 1))) (and (or .cse0 .cse1 .cse2 (= ~pumpRunning~0 1)) (or (and .cse3 .cse4 .cse5) .cse6 (not (< |old(~waterLevel~0)| 2)) .cse1) (or .cse7 .cse8 .cse1 .cse9 .cse10) (or .cse8 .cse1 .cse9 (and .cse11 (= |old(~waterLevel~0)| ~waterLevel~0)) .cse10) (or (and .cse4 (not (= |old(~pumpRunning~0)| 1))) .cse0 .cse1 .cse2))))) [2022-11-03 04:04:16,092 INFO L895 garLoopResultBuilder]: At program point L77-1(lines 62 94) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| 0))) (let ((.cse6 (= ~pumpRunning~0 0)) (.cse8 (= ~methaneLevelCritical~0 |timeShift___utac_acc__Specification3_spec__1_~tmp~0#1|)) (.cse10 (not (< |old(~waterLevel~0)| 3))) (.cse5 (not .cse0)) (.cse3 (not (= |old(~waterLevel~0)| 2))) (.cse7 (not (< |old(~waterLevel~0)| 2))) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (<= |timeShift___utac_acc__Specification3_spec__1_~tmp___0~0#1| 1)) (.cse4 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse7 .cse4) (let ((.cse9 (< ~waterLevel~0 2))) (or (and .cse6 .cse8 .cse9) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse8 .cse9) .cse0 .cse4 .cse10)) (or .cse5 .cse4 (and .cse8 (= |old(~waterLevel~0)| ~waterLevel~0)) .cse10) (or .cse0 .cse3 .cse4 (= ~waterLevel~0 1)) (or .cse5 .cse1 .cse3 .cse4 (= ~pumpRunning~0 1)) (or .cse7 .cse1 .cse2 .cse4)))) [2022-11-03 04:04:16,092 INFO L899 garLoopResultBuilder]: For program point L709(lines 709 717) no Hoare annotation was computed. [2022-11-03 04:04:16,092 INFO L895 garLoopResultBuilder]: At program point L69(line 69) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| 0))) (let ((.cse4 (= ~pumpRunning~0 0)) (.cse3 (not (< |old(~waterLevel~0)| 3))) (.cse5 (not .cse1)) (.cse6 (not (= |old(~waterLevel~0)| 2))) (.cse2 (= 0 ~systemActive~0))) (and (let ((.cse0 (< ~waterLevel~0 2))) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0) .cse1 .cse2 .cse3 (and .cse4 .cse0))) (or .cse5 .cse4 (not (< |old(~waterLevel~0)| 2)) .cse2) (or .cse5 (= |old(~waterLevel~0)| ~waterLevel~0) .cse2 .cse3) (or .cse1 .cse6 .cse2 (= ~waterLevel~0 1)) (or .cse5 (not (= ~methaneLevelCritical~0 0)) .cse6 .cse2 (= ~pumpRunning~0 1))))) [2022-11-03 04:04:16,092 INFO L899 garLoopResultBuilder]: For program point L69-1(line 69) no Hoare annotation was computed. [2022-11-03 04:04:16,093 INFO L899 garLoopResultBuilder]: For program point L705(lines 705 722) no Hoare annotation was computed. [2022-11-03 04:04:16,093 INFO L895 garLoopResultBuilder]: At program point L54(line 54) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (< |old(~waterLevel~0)| 2)) .cse0) (or (not (= |old(~waterLevel~0)| 2)) .cse0))) [2022-11-03 04:04:16,093 INFO L899 garLoopResultBuilder]: For program point L628-1(lines 628 634) no Hoare annotation was computed. [2022-11-03 04:04:16,093 INFO L895 garLoopResultBuilder]: At program point L715(line 715) the Hoare annotation is: (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= ~pumpRunning~0 0)) (let ((.cse0 (< 0 |old(~waterLevel~0)|))) (or (and (not .cse0) (= |old(~waterLevel~0)| ~waterLevel~0)) (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse0)))) (= 0 ~systemActive~0) (not (< |old(~waterLevel~0)| 3))) [2022-11-03 04:04:16,094 INFO L895 garLoopResultBuilder]: At program point L711(line 711) the Hoare annotation is: (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= ~pumpRunning~0 0)) (let ((.cse0 (< 0 |old(~waterLevel~0)|))) (or (and (not .cse0) (= |old(~waterLevel~0)| ~waterLevel~0)) (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse0)))) (= 0 ~systemActive~0) (not (< |old(~waterLevel~0)| 3))) [2022-11-03 04:04:16,094 INFO L895 garLoopResultBuilder]: At program point L71(lines 71 91) the Hoare annotation is: (let ((.cse8 (= |old(~pumpRunning~0)| 0)) (.cse6 (= ~methaneLevelCritical~0 |timeShift___utac_acc__Specification3_spec__1_~tmp~0#1|))) (let ((.cse2 (and .cse6 (= |old(~waterLevel~0)| ~waterLevel~0))) (.cse4 (not (< |old(~waterLevel~0)| 3))) (.cse3 (not (= |old(~waterLevel~0)| 2))) (.cse0 (not .cse8)) (.cse5 (= ~pumpRunning~0 0)) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (not (< |old(~waterLevel~0)| 2)) .cse1 .cse2) (or .cse0 .cse3 .cse1 .cse2) (or (<= ~waterLevel~0 1) (not (= ~methaneLevelCritical~0 0)) .cse1 .cse4 (= ~pumpRunning~0 1)) (let ((.cse7 (< ~waterLevel~0 2))) (or (and .cse5 .cse6 .cse7) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse6 .cse7) .cse8 .cse1 .cse4)) (or .cse8 .cse3 .cse1 (= ~waterLevel~0 1)) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse5 .cse1)))) [2022-11-03 04:04:16,094 INFO L895 garLoopResultBuilder]: At program point L707(line 707) the Hoare annotation is: (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= ~pumpRunning~0 0)) (let ((.cse0 (< 0 |old(~waterLevel~0)|))) (or (and (not .cse0) (= |old(~waterLevel~0)| ~waterLevel~0)) (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse0)))) (= 0 ~systemActive~0) (not (< |old(~waterLevel~0)| 3))) [2022-11-03 04:04:16,094 INFO L899 garLoopResultBuilder]: For program point L707-1(line 707) no Hoare annotation was computed. [2022-11-03 04:04:16,095 INFO L895 garLoopResultBuilder]: At program point L720(line 720) the Hoare annotation is: (let ((.cse3 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (.cse1 (not (= |old(~waterLevel~0)| 2))) (.cse0 (= |old(~pumpRunning~0)| 0)) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2) (or (not (<= |old(~waterLevel~0)| 1)) .cse3 .cse2) (or .cse3 .cse1 .cse2) (or (not (< |old(~waterLevel~0)| 2)) .cse0 .cse2))) [2022-11-03 04:04:16,095 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 617 640) the Hoare annotation is: (let ((.cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~waterLevel~0)| ~waterLevel~0))) (.cse1 (= 0 ~systemActive~0))) (and (or (not (< |old(~waterLevel~0)| 2)) .cse0 .cse1) (or .cse0 (not (= |old(~waterLevel~0)| 2)) .cse1))) [2022-11-03 04:04:16,095 INFO L895 garLoopResultBuilder]: At program point L720-1(lines 701 725) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| 0))) (let ((.cse4 (= ~pumpRunning~0 0)) (.cse3 (not (< |old(~waterLevel~0)| 3))) (.cse5 (not .cse1)) (.cse6 (not (= |old(~waterLevel~0)| 2))) (.cse2 (= 0 ~systemActive~0))) (and (let ((.cse0 (< ~waterLevel~0 2))) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0) .cse1 .cse2 .cse3 (and .cse4 .cse0))) (or .cse5 .cse4 (not (< |old(~waterLevel~0)| 2)) .cse2) (or .cse5 (= |old(~waterLevel~0)| ~waterLevel~0) .cse2 .cse3) (or .cse1 .cse6 .cse2 (= ~waterLevel~0 1)) (or .cse5 (not (= ~methaneLevelCritical~0 0)) .cse6 .cse2 (= ~pumpRunning~0 1))))) [2022-11-03 04:04:16,096 INFO L899 garLoopResultBuilder]: For program point L621-1(lines 620 639) no Hoare annotation was computed. [2022-11-03 04:04:16,096 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 617 640) no Hoare annotation was computed. [2022-11-03 04:04:16,096 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2022-11-03 04:04:16,096 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 506 514) the Hoare annotation is: true [2022-11-03 04:04:16,096 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 506 514) no Hoare annotation was computed. [2022-11-03 04:04:16,097 INFO L895 garLoopResultBuilder]: At program point L911-2(lines 903 916) the Hoare annotation is: (let ((.cse3 (= ~methaneLevelCritical~0 0)) (.cse0 (= |ULTIMATE.start_main_~tmp~11#1| 1)) (.cse1 (= |ULTIMATE.start_main_~tmp~11#1| ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (or (not (= |old(~methaneLevelCritical~0)| 0)) (= ~methaneLevelCritical~0 1)) .cse0 .cse1 .cse2 (< ~waterLevel~0 3)) (and .cse3 .cse0 .cse1 .cse2 (< ~waterLevel~0 2)) (and (= 2 ~waterLevel~0) .cse3 .cse0 .cse1 .cse2))) [2022-11-03 04:04:16,097 INFO L899 garLoopResultBuilder]: For program point L874(lines 873 920) no Hoare annotation was computed. [2022-11-03 04:04:16,097 INFO L895 garLoopResultBuilder]: At program point L895(line 895) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~11#1| 1)) (.cse1 (= |ULTIMATE.start_main_~tmp~11#1| ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (< ~waterLevel~0 3))) (or (and (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse2 .cse3) (and (or (not (= |old(~methaneLevelCritical~0)| 0)) (= ~methaneLevelCritical~0 1)) .cse0 .cse1 .cse2 .cse3))) [2022-11-03 04:04:16,097 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-03 04:04:16,098 INFO L902 garLoopResultBuilder]: At program point L924(lines 863 928) the Hoare annotation is: true [2022-11-03 04:04:16,098 INFO L899 garLoopResultBuilder]: For program point L883(lines 883 889) no Hoare annotation was computed. [2022-11-03 04:04:16,098 INFO L899 garLoopResultBuilder]: For program point L883-1(lines 883 889) no Hoare annotation was computed. [2022-11-03 04:04:16,098 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-03 04:04:16,098 INFO L895 garLoopResultBuilder]: At program point L921(lines 872 922) the Hoare annotation is: false [2022-11-03 04:04:16,099 INFO L895 garLoopResultBuilder]: At program point L1012(lines 1012 1019) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= |ULTIMATE.start_main_~tmp~11#1| 1) (= |ULTIMATE.start_main_~tmp~11#1| ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-03 04:04:16,099 INFO L902 garLoopResultBuilder]: At program point L1012-2(lines 1012 1019) the Hoare annotation is: true [2022-11-03 04:04:16,099 INFO L899 garLoopResultBuilder]: For program point L893(lines 893 899) no Hoare annotation was computed. [2022-11-03 04:04:16,099 INFO L895 garLoopResultBuilder]: At program point L893-1(lines 893 899) the Hoare annotation is: (let ((.cse3 (= ~methaneLevelCritical~0 0)) (.cse0 (= |ULTIMATE.start_main_~tmp~11#1| 1)) (.cse1 (= |ULTIMATE.start_main_~tmp~11#1| ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (or (not (= |old(~methaneLevelCritical~0)| 0)) (= ~methaneLevelCritical~0 1)) .cse0 .cse1 .cse2 (< ~waterLevel~0 3)) (and .cse3 .cse0 .cse1 .cse2 (< ~waterLevel~0 2)) (and (= 2 ~waterLevel~0) .cse3 .cse0 .cse1 .cse2))) [2022-11-03 04:04:16,100 INFO L895 garLoopResultBuilder]: At program point L918(lines 873 920) the Hoare annotation is: (let ((.cse0 (or (not (= |old(~methaneLevelCritical~0)| 0)) (= ~methaneLevelCritical~0 1))) (.cse4 (< ~waterLevel~0 2)) (.cse5 (= 2 ~waterLevel~0)) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse1 (= |ULTIMATE.start_main_~tmp~11#1| 1)) (.cse2 (= |ULTIMATE.start_main_~tmp~11#1| ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse0 .cse1 .cse2 (not .cse6) .cse3) (and .cse6 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse6 .cse1 .cse2 .cse3 (= ~pumpRunning~0 1)))) [2022-11-03 04:04:16,100 INFO L895 garLoopResultBuilder]: At program point L885(line 885) the Hoare annotation is: (let ((.cse5 (= ~methaneLevelCritical~0 0))) (let ((.cse0 (= |ULTIMATE.start_main_~tmp~11#1| 1)) (.cse1 (or (not .cse5) (= ~pumpRunning~0 1))) (.cse2 (= |ULTIMATE.start_main_~tmp~11#1| ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (< ~waterLevel~0 3))) (or (and (or (not (= |old(~methaneLevelCritical~0)| 0)) (= ~methaneLevelCritical~0 1)) .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse0 .cse2 .cse3 (< ~waterLevel~0 2)) (and (= ~pumpRunning~0 0) .cse5 .cse0 .cse2 .cse3 .cse4) (and .cse5 .cse0 .cse1 .cse2 .cse3 .cse4)))) [2022-11-03 04:04:16,100 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 649 673) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 2 ~waterLevel~0)) .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (< ~waterLevel~0 2)) .cse0))) [2022-11-03 04:04:16,101 INFO L895 garLoopResultBuilder]: At program point L663(line 663) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse1 (= 0 ~systemActive~0))) (and (or (not (< ~waterLevel~0 2)) .cse0 .cse1) (or (not .cse0) .cse1 (and (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~4#1| 0) (<= ~waterLevel~0 1)) (not (< ~waterLevel~0 3))))) [2022-11-03 04:04:16,101 INFO L899 garLoopResultBuilder]: For program point L657(lines 657 665) no Hoare annotation was computed. [2022-11-03 04:04:16,101 INFO L895 garLoopResultBuilder]: At program point L653(lines 653 670) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 2 ~waterLevel~0)) .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (< ~waterLevel~0 2)) .cse0))) [2022-11-03 04:04:16,101 INFO L895 garLoopResultBuilder]: At program point L668(line 668) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (< ~waterLevel~0 2)) .cse0) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (< ~waterLevel~0 3))))) [2022-11-03 04:04:16,101 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 649 673) no Hoare annotation was computed. [2022-11-03 04:04:16,102 INFO L899 garLoopResultBuilder]: For program point L668-1(lines 649 673) no Hoare annotation was computed. [2022-11-03 04:04:16,102 INFO L895 garLoopResultBuilder]: At program point L739(line 739) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (not (= 2 ~waterLevel~0)) .cse0 (and (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~4#1| 1))) (or (not (< ~waterLevel~0 2)) .cse0))) [2022-11-03 04:04:16,102 INFO L895 garLoopResultBuilder]: At program point L739-1(line 739) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (and (= ~methaneLevelCritical~0 |processEnvironment__wrappee__highWaterSensor_activatePump_#t~ret39#1|) (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~4#1| 1)) (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (< ~waterLevel~0 3))) (or (not (< ~waterLevel~0 2)) .cse0))) [2022-11-03 04:04:16,102 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 482 493) no Hoare annotation was computed. [2022-11-03 04:04:16,103 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 482 493) the Hoare annotation is: (let ((.cse2 (not (< |old(~waterLevel~0)| 3))) (.cse0 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse1 (= 0 ~systemActive~0))) (and (or (not (= ~pumpRunning~0 0)) .cse0 .cse1 .cse2) (or (and (= ~methaneLevelCritical~0 0) (not (= ~pumpRunning~0 1))) .cse0 .cse1 .cse2) (or (not (< |old(~waterLevel~0)| 2)) .cse0 .cse1))) [2022-11-03 04:04:16,103 INFO L902 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 759 769) the Hoare annotation is: true [2022-11-03 04:04:16,103 INFO L902 garLoopResultBuilder]: At program point L764(line 764) the Hoare annotation is: true [2022-11-03 04:04:16,103 INFO L899 garLoopResultBuilder]: For program point L764-1(line 764) no Hoare annotation was computed. [2022-11-03 04:04:16,104 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 759 769) no Hoare annotation was computed. [2022-11-03 04:04:16,107 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:04:16,110 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 04:04:16,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 04:04:16 BoogieIcfgContainer [2022-11-03 04:04:16,147 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 04:04:16,148 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 04:04:16,148 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 04:04:16,148 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 04:04:16,149 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:01:03" (3/4) ... [2022-11-03 04:04:16,152 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-03 04:04:16,159 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-11-03 04:04:16,159 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-03 04:04:16,159 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-03 04:04:16,159 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-03 04:04:16,160 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-03 04:04:16,160 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-11-03 04:04:16,160 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-11-03 04:04:16,161 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-03 04:04:16,161 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2022-11-03 04:04:16,161 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2022-11-03 04:04:16,170 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 82 nodes and edges [2022-11-03 04:04:16,171 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2022-11-03 04:04:16,172 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-11-03 04:04:16,172 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-03 04:04:16,173 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-03 04:04:16,173 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 04:04:16,174 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 04:04:16,203 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(methaneLevelCritical) == 0) || methaneLevelCritical == 1) && tmp == 1) && tmp == systemActive) && splverifierCounter == 0) && waterLevel < 2) || (((((2 == waterLevel && (!(\old(methaneLevelCritical) == 0) || methaneLevelCritical == 1)) && tmp == 1) && tmp == systemActive) && !(methaneLevelCritical == 0)) && splverifierCounter == 0)) || ((((methaneLevelCritical == 0 && tmp == 1) && tmp == systemActive) && splverifierCounter == 0) && waterLevel < 2)) || (((((2 == waterLevel && methaneLevelCritical == 0) && tmp == 1) && tmp == systemActive) && splverifierCounter == 0) && pumpRunning == 1) [2022-11-03 04:04:16,204 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(waterLevel) < 2) || (pumpRunning == \old(pumpRunning) && \old(waterLevel) == waterLevel)) || 0 == systemActive) && (((pumpRunning == \old(pumpRunning) && \old(waterLevel) == waterLevel) || !(\old(waterLevel) == 2)) || 0 == systemActive) [2022-11-03 04:04:16,204 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(methaneLevelCritical) == 0) || methaneLevelCritical == 1) && tmp == 1) && tmp == systemActive) && splverifierCounter == 0) && waterLevel < 3) || ((((methaneLevelCritical == 0 && tmp == 1) && tmp == systemActive) && splverifierCounter == 0) && waterLevel < 2)) || ((((2 == waterLevel && methaneLevelCritical == 0) && tmp == 1) && tmp == systemActive) && splverifierCounter == 0) [2022-11-03 04:04:16,205 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((pumpRunning == \old(pumpRunning) && waterLevel < 2) || \old(pumpRunning) == 0) || 0 == systemActive) || !(\old(waterLevel) < 3)) || (pumpRunning == 0 && waterLevel < 2)) && (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(\old(waterLevel) < 2)) || 0 == systemActive)) && (((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || 0 == systemActive) || !(\old(waterLevel) < 3))) && (((\old(pumpRunning) == 0 || !(\old(waterLevel) == 2)) || 0 == systemActive) || waterLevel == 1)) && ((((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) == 2)) || 0 == systemActive) || pumpRunning == 1) [2022-11-03 04:04:16,205 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(2 == waterLevel)) || 0 == systemActive) && ((pumpRunning == \old(pumpRunning) || !(waterLevel < 2)) || 0 == systemActive) [2022-11-03 04:04:16,206 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(2 == waterLevel)) || 0 == systemActive) && ((pumpRunning == \old(pumpRunning) || !(waterLevel < 2)) || 0 == systemActive) [2022-11-03 04:04:16,206 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) < 2)) || 0 == systemActive) || (methaneLevelCritical == tmp && \old(waterLevel) == waterLevel)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 2)) || 0 == systemActive) || (methaneLevelCritical == tmp && \old(waterLevel) == waterLevel))) && ((((waterLevel <= 1 || !(methaneLevelCritical == 0)) || 0 == systemActive) || !(\old(waterLevel) < 3)) || pumpRunning == 1)) && ((((((pumpRunning == 0 && methaneLevelCritical == tmp) && waterLevel < 2) || ((pumpRunning == \old(pumpRunning) && methaneLevelCritical == tmp) && waterLevel < 2)) || \old(pumpRunning) == 0) || 0 == systemActive) || !(\old(waterLevel) < 3))) && (((\old(pumpRunning) == 0 || !(\old(waterLevel) == 2)) || 0 == systemActive) || waterLevel == 1)) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || pumpRunning == 0) || 0 == systemActive) [2022-11-03 04:04:16,206 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((\old(pumpRunning) == 0 || !(methaneLevelCritical == 0)) || tmp___0 <= 1) || !(\old(waterLevel) == 2)) || 0 == systemActive) && (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(\old(waterLevel) < 2)) || 0 == systemActive)) && ((((((pumpRunning == 0 && methaneLevelCritical == tmp) && waterLevel < 2) || ((pumpRunning == \old(pumpRunning) && methaneLevelCritical == tmp) && waterLevel < 2)) || \old(pumpRunning) == 0) || 0 == systemActive) || !(\old(waterLevel) < 3))) && (((!(\old(pumpRunning) == 0) || 0 == systemActive) || (methaneLevelCritical == tmp && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) < 3))) && (((\old(pumpRunning) == 0 || !(\old(waterLevel) == 2)) || 0 == systemActive) || waterLevel == 1)) && ((((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) == 2)) || 0 == systemActive) || pumpRunning == 1)) && (((!(\old(waterLevel) < 2) || !(methaneLevelCritical == 0)) || tmp___0 <= 1) || 0 == systemActive) [2022-11-03 04:04:16,207 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((methaneLevelCritical == aux-isMethaneAlarm()-aux && pumpRunning == 0) && tmp == 1) || !(\old(pumpRunning) == 0)) || 0 == systemActive) || !(waterLevel < 3)) && (!(waterLevel < 2) || 0 == systemActive) [2022-11-03 04:04:16,208 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(waterLevel) == 2) || 0 == systemActive) || waterLevel == 1) || pumpRunning == 1) && (((((pumpRunning == 0 && methaneLevelCritical == 0) && tmp___0 <= 1) || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) < 2)) || 0 == systemActive)) && ((((\old(pumpRunning) == 0 || ((((((pumpRunning == \old(pumpRunning) && !(pumpRunning == 0)) && methaneLevelCritical == 0) && methaneLevelCritical == tmp) && tmp___0 <= 1) && waterLevel < 2) && !(0 == systemActive))) || 0 == systemActive) || ((((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && methaneLevelCritical == 0) && methaneLevelCritical == tmp) && tmp___0 <= 1) && waterLevel < 2) && !(0 == systemActive))) || !(\old(waterLevel) < 3))) && ((((((((((pumpRunning == \old(pumpRunning) && !(pumpRunning == 0)) && methaneLevelCritical == 0) && methaneLevelCritical == tmp) && tmp___0 <= 1) && waterLevel < 2) && !(0 == systemActive)) || 0 == systemActive) || ((((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && methaneLevelCritical == 0) && methaneLevelCritical == tmp) && tmp___0 <= 1) && waterLevel < 2) && !(0 == systemActive))) || (methaneLevelCritical == tmp && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) < 3))) && ((((methaneLevelCritical == 0 && !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || 0 == systemActive) || waterLevel == 1) [2022-11-03 04:04:16,208 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(waterLevel) < 2) || 0 == systemActive) && (!(\old(waterLevel) == 2) || 0 == systemActive) [2022-11-03 04:04:16,241 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b24c16e-6f30-4ae2-b502-666359376133/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 04:04:16,241 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 04:04:16,242 INFO L158 Benchmark]: Toolchain (without parser) took 194888.11ms. Allocated memory was 153.1MB in the beginning and 847.2MB in the end (delta: 694.2MB). Free memory was 123.0MB in the beginning and 651.3MB in the end (delta: -528.2MB). Peak memory consumption was 165.8MB. Max. memory is 16.1GB. [2022-11-03 04:04:16,242 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 92.3MB. Free memory is still 49.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 04:04:16,243 INFO L158 Benchmark]: CACSL2BoogieTranslator took 731.54ms. Allocated memory is still 153.1MB. Free memory was 123.0MB in the beginning and 120.6MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-03 04:04:16,243 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.18ms. Allocated memory is still 153.1MB. Free memory was 120.6MB in the beginning and 117.9MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-03 04:04:16,243 INFO L158 Benchmark]: Boogie Preprocessor took 33.35ms. Allocated memory is still 153.1MB. Free memory was 117.9MB in the beginning and 116.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 04:04:16,244 INFO L158 Benchmark]: RCFGBuilder took 926.81ms. Allocated memory is still 153.1MB. Free memory was 116.4MB in the beginning and 81.8MB in the end (delta: 34.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-11-03 04:04:16,244 INFO L158 Benchmark]: TraceAbstraction took 192993.65ms. Allocated memory was 153.1MB in the beginning and 847.2MB in the end (delta: 694.2MB). Free memory was 81.2MB in the beginning and 657.5MB in the end (delta: -576.3MB). Peak memory consumption was 491.7MB. Max. memory is 16.1GB. [2022-11-03 04:04:16,245 INFO L158 Benchmark]: Witness Printer took 93.73ms. Allocated memory is still 847.2MB. Free memory was 657.5MB in the beginning and 651.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-03 04:04:16,247 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 92.3MB. Free memory is still 49.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 731.54ms. Allocated memory is still 153.1MB. Free memory was 123.0MB in the beginning and 120.6MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.18ms. Allocated memory is still 153.1MB. Free memory was 120.6MB in the beginning and 117.9MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.35ms. Allocated memory is still 153.1MB. Free memory was 117.9MB in the beginning and 116.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 926.81ms. Allocated memory is still 153.1MB. Free memory was 116.4MB in the beginning and 81.8MB in the end (delta: 34.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * TraceAbstraction took 192993.65ms. Allocated memory was 153.1MB in the beginning and 847.2MB in the end (delta: 694.2MB). Free memory was 81.2MB in the beginning and 657.5MB in the end (delta: -576.3MB). Peak memory consumption was 491.7MB. Max. memory is 16.1GB. * Witness Printer took 93.73ms. Allocated memory is still 847.2MB. Free memory was 657.5MB in the beginning and 651.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 54]: 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: 192.9s, OverallIterations: 11, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 18.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 25.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4021 SdHoareTripleChecker+Valid, 8.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3956 mSDsluCounter, 4963 SdHoareTripleChecker+Invalid, 6.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4526 mSDsCounter, 2833 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8434 IncrementalHoareTripleChecker+Invalid, 11267 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2833 mSolverCounterUnsat, 1173 mSDtfsCounter, 8434 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 774 GetRequests, 409 SyntacticMatches, 17 SemanticMatches, 348 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14070 ImplicationChecksByTransitivity, 121.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3807occurred in iteration=9, InterpolantAutomatonStates: 270, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.0s AutomataMinimizationTime, 11 MinimizatonAttempts, 1408 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 44 LocationsWithAnnotation, 7447 PreInvPairs, 8343 NumberOfFragments, 1536 HoareAnnotationTreeSize, 7447 FomulaSimplifications, 55196 FormulaSimplificationTreeSizeReduction, 4.7s HoareSimplificationTime, 44 FomulaSimplificationsInter, 141121 FormulaSimplificationTreeSizeReductionInter, 20.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 695 NumberOfCodeBlocks, 695 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 798 ConstructedInterpolants, 0 QuantifiedInterpolants, 2179 SizeOfPredicates, 39 NumberOfNonLiveVariables, 1305 ConjunctsInSsa, 84 ConjunctsInUnsatCore, 16 InterpolantComputations, 9 PerfectInterpolantSequences, 182/206 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: 941]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 863]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: (!(\old(waterLevel) < 2) || 0 == systemActive) && (!(\old(waterLevel) == 2) || 0 == systemActive) - InvariantResult [Line: 701]: Loop Invariant Derived loop invariant: ((((((((pumpRunning == \old(pumpRunning) && waterLevel < 2) || \old(pumpRunning) == 0) || 0 == systemActive) || !(\old(waterLevel) < 3)) || (pumpRunning == 0 && waterLevel < 2)) && (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(\old(waterLevel) < 2)) || 0 == systemActive)) && (((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || 0 == systemActive) || !(\old(waterLevel) < 3))) && (((\old(pumpRunning) == 0 || !(\old(waterLevel) == 2)) || 0 == systemActive) || waterLevel == 1)) && ((((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) == 2)) || 0 == systemActive) || pumpRunning == 1) - InvariantResult [Line: 617]: Loop Invariant Derived loop invariant: ((!(\old(waterLevel) < 2) || (pumpRunning == \old(pumpRunning) && \old(waterLevel) == waterLevel)) || 0 == systemActive) && (((pumpRunning == \old(pumpRunning) && \old(waterLevel) == waterLevel) || !(\old(waterLevel) == 2)) || 0 == systemActive) - InvariantResult [Line: 679]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(2 == waterLevel)) || 0 == systemActive) && ((pumpRunning == \old(pumpRunning) || !(waterLevel < 2)) || 0 == systemActive) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: (((((((((\old(pumpRunning) == 0 || !(methaneLevelCritical == 0)) || tmp___0 <= 1) || !(\old(waterLevel) == 2)) || 0 == systemActive) && (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(\old(waterLevel) < 2)) || 0 == systemActive)) && ((((((pumpRunning == 0 && methaneLevelCritical == tmp) && waterLevel < 2) || ((pumpRunning == \old(pumpRunning) && methaneLevelCritical == tmp) && waterLevel < 2)) || \old(pumpRunning) == 0) || 0 == systemActive) || !(\old(waterLevel) < 3))) && (((!(\old(pumpRunning) == 0) || 0 == systemActive) || (methaneLevelCritical == tmp && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) < 3))) && (((\old(pumpRunning) == 0 || !(\old(waterLevel) == 2)) || 0 == systemActive) || waterLevel == 1)) && ((((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) == 2)) || 0 == systemActive) || pumpRunning == 1)) && (((!(\old(waterLevel) < 2) || !(methaneLevelCritical == 0)) || tmp___0 <= 1) || 0 == systemActive) - InvariantResult [Line: 872]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 739]: Loop Invariant Derived loop invariant: (((((methaneLevelCritical == aux-isMethaneAlarm()-aux && pumpRunning == 0) && tmp == 1) || !(\old(pumpRunning) == 0)) || 0 == systemActive) || !(waterLevel < 3)) && (!(waterLevel < 2) || 0 == systemActive) - InvariantResult [Line: 931]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1012]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 893]: Loop Invariant Derived loop invariant: ((((((!(\old(methaneLevelCritical) == 0) || methaneLevelCritical == 1) && tmp == 1) && tmp == systemActive) && splverifierCounter == 0) && waterLevel < 3) || ((((methaneLevelCritical == 0 && tmp == 1) && tmp == systemActive) && splverifierCounter == 0) && waterLevel < 2)) || ((((2 == waterLevel && methaneLevelCritical == 0) && tmp == 1) && tmp == systemActive) && splverifierCounter == 0) - InvariantResult [Line: 71]: Loop Invariant Derived loop invariant: (((((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) < 2)) || 0 == systemActive) || (methaneLevelCritical == tmp && \old(waterLevel) == waterLevel)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 2)) || 0 == systemActive) || (methaneLevelCritical == tmp && \old(waterLevel) == waterLevel))) && ((((waterLevel <= 1 || !(methaneLevelCritical == 0)) || 0 == systemActive) || !(\old(waterLevel) < 3)) || pumpRunning == 1)) && ((((((pumpRunning == 0 && methaneLevelCritical == tmp) && waterLevel < 2) || ((pumpRunning == \old(pumpRunning) && methaneLevelCritical == tmp) && waterLevel < 2)) || \old(pumpRunning) == 0) || 0 == systemActive) || !(\old(waterLevel) < 3))) && (((\old(pumpRunning) == 0 || !(\old(waterLevel) == 2)) || 0 == systemActive) || waterLevel == 1)) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || pumpRunning == 0) || 0 == systemActive) - InvariantResult [Line: 1012]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methaneLevelCritical == 0) && tmp == 1) && tmp == systemActive) && waterLevel == 1 - InvariantResult [Line: 77]: Loop Invariant Derived loop invariant: ((((((!(\old(waterLevel) == 2) || 0 == systemActive) || waterLevel == 1) || pumpRunning == 1) && (((((pumpRunning == 0 && methaneLevelCritical == 0) && tmp___0 <= 1) || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) < 2)) || 0 == systemActive)) && ((((\old(pumpRunning) == 0 || ((((((pumpRunning == \old(pumpRunning) && !(pumpRunning == 0)) && methaneLevelCritical == 0) && methaneLevelCritical == tmp) && tmp___0 <= 1) && waterLevel < 2) && !(0 == systemActive))) || 0 == systemActive) || ((((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && methaneLevelCritical == 0) && methaneLevelCritical == tmp) && tmp___0 <= 1) && waterLevel < 2) && !(0 == systemActive))) || !(\old(waterLevel) < 3))) && ((((((((((pumpRunning == \old(pumpRunning) && !(pumpRunning == 0)) && methaneLevelCritical == 0) && methaneLevelCritical == tmp) && tmp___0 <= 1) && waterLevel < 2) && !(0 == systemActive)) || 0 == systemActive) || ((((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && methaneLevelCritical == 0) && methaneLevelCritical == tmp) && tmp___0 <= 1) && waterLevel < 2) && !(0 == systemActive))) || (methaneLevelCritical == tmp && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) < 3))) && ((((methaneLevelCritical == 0 && !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || 0 == systemActive) || waterLevel == 1) - InvariantResult [Line: 873]: Loop Invariant Derived loop invariant: (((((((!(\old(methaneLevelCritical) == 0) || methaneLevelCritical == 1) && tmp == 1) && tmp == systemActive) && splverifierCounter == 0) && waterLevel < 2) || (((((2 == waterLevel && (!(\old(methaneLevelCritical) == 0) || methaneLevelCritical == 1)) && tmp == 1) && tmp == systemActive) && !(methaneLevelCritical == 0)) && splverifierCounter == 0)) || ((((methaneLevelCritical == 0 && tmp == 1) && tmp == systemActive) && splverifierCounter == 0) && waterLevel < 2)) || (((((2 == waterLevel && methaneLevelCritical == 0) && tmp == 1) && tmp == systemActive) && splverifierCounter == 0) && pumpRunning == 1) - InvariantResult [Line: 653]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(2 == waterLevel)) || 0 == systemActive) && ((pumpRunning == \old(pumpRunning) || !(waterLevel < 2)) || 0 == systemActive) RESULT: Ultimate proved your program to be correct! [2022-11-03 04:04:16,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b24c16e-6f30-4ae2-b502-666359376133/bin/utaipan-7li7fVZpFI/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