./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product06.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ac1951-e8ba-4ebe-a09e-0a852863a688/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ac1951-e8ba-4ebe-a09e-0a852863a688/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_f2ac1951-e8ba-4ebe-a09e-0a852863a688/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ac1951-e8ba-4ebe-a09e-0a852863a688/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product06.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ac1951-e8ba-4ebe-a09e-0a852863a688/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_f2ac1951-e8ba-4ebe-a09e-0a852863a688/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 02f348a1765e9ec5744c77eeefa530e23dc9cfba8d17cca10f5e72556b3df984 --- 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 03:48:14,537 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:48:14,539 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:48:14,595 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:48:14,595 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:48:14,599 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:48:14,602 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:48:14,604 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:48:14,609 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:48:14,614 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:48:14,615 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:48:14,618 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:48:14,618 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:48:14,620 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:48:14,622 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:48:14,624 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:48:14,625 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:48:14,626 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:48:14,628 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:48:14,635 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:48:14,636 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:48:14,637 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:48:14,641 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:48:14,642 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:48:14,651 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:48:14,651 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:48:14,651 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:48:14,654 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:48:14,654 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:48:14,655 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:48:14,655 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:48:14,656 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:48:14,658 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:48:14,659 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:48:14,662 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:48:14,662 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:48:14,663 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:48:14,663 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:48:14,663 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:48:14,664 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:48:14,665 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:48:14,666 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ac1951-e8ba-4ebe-a09e-0a852863a688/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 03:48:14,708 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:48:14,708 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:48:14,709 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:48:14,709 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:48:14,710 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:48:14,710 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:48:14,710 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:48:14,711 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:48:14,711 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:48:14,711 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:48:14,712 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:48:14,713 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:48:14,713 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:48:14,713 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:48:14,713 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:48:14,714 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:48:14,714 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:48:14,714 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:48:14,715 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:48:14,715 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 03:48:14,715 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:48:14,715 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 03:48:14,716 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:48:14,717 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:48:14,717 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:48:14,718 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:48:14,718 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 03:48:14,718 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:48:14,718 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:48:14,719 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:48:14,719 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:48:14,719 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:48:14,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:48:14,720 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:48:14,720 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:48:14,720 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:48:14,721 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:48:14,721 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:48:14,721 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:48:14,721 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:48:14,721 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:48:14,722 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_f2ac1951-e8ba-4ebe-a09e-0a852863a688/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ac1951-e8ba-4ebe-a09e-0a852863a688/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 02f348a1765e9ec5744c77eeefa530e23dc9cfba8d17cca10f5e72556b3df984 [2022-11-03 03:48:15,027 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:48:15,074 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:48:15,077 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:48:15,078 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:48:15,079 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:48:15,080 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ac1951-e8ba-4ebe-a09e-0a852863a688/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/product-lines/minepump_spec4_product06.cil.c [2022-11-03 03:48:15,165 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ac1951-e8ba-4ebe-a09e-0a852863a688/bin/utaipan-7li7fVZpFI/data/ad5d07a0f/3e5b3b0850d44305b04cf5f1b3e4379b/FLAG0eeba2860 [2022-11-03 03:48:15,755 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:48:15,769 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ac1951-e8ba-4ebe-a09e-0a852863a688/sv-benchmarks/c/product-lines/minepump_spec4_product06.cil.c [2022-11-03 03:48:15,786 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ac1951-e8ba-4ebe-a09e-0a852863a688/bin/utaipan-7li7fVZpFI/data/ad5d07a0f/3e5b3b0850d44305b04cf5f1b3e4379b/FLAG0eeba2860 [2022-11-03 03:48:16,044 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ac1951-e8ba-4ebe-a09e-0a852863a688/bin/utaipan-7li7fVZpFI/data/ad5d07a0f/3e5b3b0850d44305b04cf5f1b3e4379b [2022-11-03 03:48:16,046 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:48:16,049 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:48:16,053 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:48:16,053 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:48:16,057 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:48:16,057 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:48:16" (1/1) ... [2022-11-03 03:48:16,059 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d269ce4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:48:16, skipping insertion in model container [2022-11-03 03:48:16,060 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:48:16" (1/1) ... [2022-11-03 03:48:16,068 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:48:16,125 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:48:16,461 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_f2ac1951-e8ba-4ebe-a09e-0a852863a688/sv-benchmarks/c/product-lines/minepump_spec4_product06.cil.c[17188,17201] [2022-11-03 03:48:16,464 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:48:16,473 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:48:16,597 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_f2ac1951-e8ba-4ebe-a09e-0a852863a688/sv-benchmarks/c/product-lines/minepump_spec4_product06.cil.c[17188,17201] [2022-11-03 03:48:16,598 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:48:16,616 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:48:16,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:48:16 WrapperNode [2022-11-03 03:48:16,617 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:48:16,618 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:48:16,618 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:48:16,618 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:48:16,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:48:16" (1/1) ... [2022-11-03 03:48:16,640 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:48:16" (1/1) ... [2022-11-03 03:48:16,674 INFO L138 Inliner]: procedures = 51, calls = 149, calls flagged for inlining = 21, calls inlined = 18, statements flattened = 216 [2022-11-03 03:48:16,679 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:48:16,680 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:48:16,680 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:48:16,680 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:48:16,690 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:48:16" (1/1) ... [2022-11-03 03:48:16,691 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:48:16" (1/1) ... [2022-11-03 03:48:16,693 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:48:16" (1/1) ... [2022-11-03 03:48:16,693 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:48:16" (1/1) ... [2022-11-03 03:48:16,698 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:48:16" (1/1) ... [2022-11-03 03:48:16,703 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:48:16" (1/1) ... [2022-11-03 03:48:16,705 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:48:16" (1/1) ... [2022-11-03 03:48:16,706 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:48:16" (1/1) ... [2022-11-03 03:48:16,708 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:48:16,709 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:48:16,709 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:48:16,710 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:48:16,710 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:48:16" (1/1) ... [2022-11-03 03:48:16,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:48:16,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ac1951-e8ba-4ebe-a09e-0a852863a688/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:48:16,763 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ac1951-e8ba-4ebe-a09e-0a852863a688/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:48:16,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ac1951-e8ba-4ebe-a09e-0a852863a688/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:48:16,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:48:16,805 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-03 03:48:16,805 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-03 03:48:16,805 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-03 03:48:16,806 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-03 03:48:16,806 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-03 03:48:16,806 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-03 03:48:16,806 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-03 03:48:16,806 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-03 03:48:16,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:48:16,806 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-03 03:48:16,807 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-03 03:48:16,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:48:16,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:48:16,883 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:48:16,885 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:48:17,184 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:48:17,359 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:48:17,359 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-03 03:48:17,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:48:17 BoogieIcfgContainer [2022-11-03 03:48:17,362 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:48:17,364 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:48:17,365 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:48:17,368 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:48:17,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:48:16" (1/3) ... [2022-11-03 03:48:17,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b0bc420 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:48:17, skipping insertion in model container [2022-11-03 03:48:17,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:48:16" (2/3) ... [2022-11-03 03:48:17,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b0bc420 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:48:17, skipping insertion in model container [2022-11-03 03:48:17,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:48:17" (3/3) ... [2022-11-03 03:48:17,371 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product06.cil.c [2022-11-03 03:48:17,390 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:48:17,390 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:48:17,469 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:48:17,482 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;@6ed94719, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:48:17,482 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:48:17,494 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 29 states have (on average 1.4482758620689655) internal successors, (42), 35 states have internal predecessors, (42), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-03 03:48:17,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-03 03:48:17,510 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:48:17,511 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:48:17,512 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:48:17,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:48:17,518 INFO L85 PathProgramCache]: Analyzing trace with hash 2009456478, now seen corresponding path program 1 times [2022-11-03 03:48:17,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:48:17,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426038720] [2022-11-03 03:48:17,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:48:17,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:48:17,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:48:17,865 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 03:48:17,865 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:48:17,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426038720] [2022-11-03 03:48:17,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426038720] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:48:17,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:48:17,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 03:48:17,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944977504] [2022-11-03 03:48:17,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:48:17,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 03:48:17,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:48:17,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 03:48:17,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 03:48:17,914 INFO L87 Difference]: Start difference. First operand has 44 states, 29 states have (on average 1.4482758620689655) internal successors, (42), 35 states have internal predecessors, (42), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:48:18,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:48:18,012 INFO L93 Difference]: Finished difference Result 86 states and 117 transitions. [2022-11-03 03:48:18,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 03:48:18,014 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-03 03:48:18,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:48:18,024 INFO L225 Difference]: With dead ends: 86 [2022-11-03 03:48:18,024 INFO L226 Difference]: Without dead ends: 39 [2022-11-03 03:48:18,028 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 03:48:18,031 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:48:18,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:48:18,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-11-03 03:48:18,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-11-03 03:48:18,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 31 states have internal predecessors, (34), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-03 03:48:18,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 49 transitions. [2022-11-03 03:48:18,074 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 49 transitions. Word has length 12 [2022-11-03 03:48:18,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:48:18,075 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 49 transitions. [2022-11-03 03:48:18,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:48:18,075 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 49 transitions. [2022-11-03 03:48:18,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-03 03:48:18,077 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:48:18,077 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:48:18,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 03:48:18,078 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:48:18,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:48:18,079 INFO L85 PathProgramCache]: Analyzing trace with hash 391542380, now seen corresponding path program 1 times [2022-11-03 03:48:18,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:48:18,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019728678] [2022-11-03 03:48:18,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:48:18,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:48:18,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:48:18,170 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 03:48:18,170 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:48:18,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019728678] [2022-11-03 03:48:18,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019728678] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:48:18,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:48:18,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:48:18,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084208639] [2022-11-03 03:48:18,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:48:18,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:48:18,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:48:18,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:48:18,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:48:18,175 INFO L87 Difference]: Start difference. First operand 39 states and 49 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:48:18,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:48:18,230 INFO L93 Difference]: Finished difference Result 55 states and 69 transitions. [2022-11-03 03:48:18,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:48:18,231 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-03 03:48:18,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:48:18,232 INFO L225 Difference]: With dead ends: 55 [2022-11-03 03:48:18,232 INFO L226 Difference]: Without dead ends: 31 [2022-11-03 03:48:18,233 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 03:48:18,234 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 7 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:48:18,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 43 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 03:48:18,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-03 03:48:18,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-11-03 03:48:18,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 26 states have internal predecessors, (28), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-03 03:48:18,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2022-11-03 03:48:18,241 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 13 [2022-11-03 03:48:18,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:48:18,241 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2022-11-03 03:48:18,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:48:18,242 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2022-11-03 03:48:18,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-03 03:48:18,243 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:48:18,243 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:48:18,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 03:48:18,248 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:48:18,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:48:18,249 INFO L85 PathProgramCache]: Analyzing trace with hash 504576305, now seen corresponding path program 1 times [2022-11-03 03:48:18,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:48:18,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117897999] [2022-11-03 03:48:18,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:48:18,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:48:18,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:48:18,554 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 03:48:18,554 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:48:18,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117897999] [2022-11-03 03:48:18,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117897999] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:48:18,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:48:18,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:48:18,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721443928] [2022-11-03 03:48:18,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:48:18,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:48:18,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:48:18,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:48:18,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:48:18,558 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:48:18,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:48:18,677 INFO L93 Difference]: Finished difference Result 94 states and 121 transitions. [2022-11-03 03:48:18,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 03:48:18,678 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-03 03:48:18,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:48:18,679 INFO L225 Difference]: With dead ends: 94 [2022-11-03 03:48:18,679 INFO L226 Difference]: Without dead ends: 65 [2022-11-03 03:48:18,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-03 03:48:18,681 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 56 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:48:18,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 111 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:48:18,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-11-03 03:48:18,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 52. [2022-11-03 03:48:18,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 36 states have (on average 1.2777777777777777) internal successors, (46), 42 states have internal predecessors, (46), 8 states have call successors, (8), 7 states have call predecessors, (8), 7 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-03 03:48:18,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 62 transitions. [2022-11-03 03:48:18,700 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 62 transitions. Word has length 15 [2022-11-03 03:48:18,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:48:18,701 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 62 transitions. [2022-11-03 03:48:18,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:48:18,701 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 62 transitions. [2022-11-03 03:48:18,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-03 03:48:18,702 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:48:18,702 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 03:48:18,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 03:48:18,703 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:48:18,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:48:18,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1885611035, now seen corresponding path program 1 times [2022-11-03 03:48:18,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:48:18,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319962634] [2022-11-03 03:48:18,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:48:18,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:48:18,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:48:18,907 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 03:48:18,908 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:48:18,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319962634] [2022-11-03 03:48:18,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319962634] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:48:18,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:48:18,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 03:48:18,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586741260] [2022-11-03 03:48:18,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:48:18,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 03:48:18,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:48:18,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 03:48:18,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:48:18,913 INFO L87 Difference]: Start difference. First operand 52 states and 62 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 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 03:48:18,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:48:18,975 INFO L93 Difference]: Finished difference Result 79 states and 96 transitions. [2022-11-03 03:48:18,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 03:48:18,976 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 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 18 [2022-11-03 03:48:18,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:48:18,976 INFO L225 Difference]: With dead ends: 79 [2022-11-03 03:48:18,977 INFO L226 Difference]: Without dead ends: 0 [2022-11-03 03:48:18,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:48:18,979 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 20 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:48:18,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 40 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 03:48:18,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-03 03:48:18,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-03 03:48:18,980 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 03:48:18,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-03 03:48:18,981 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2022-11-03 03:48:18,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:48:18,981 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-03 03:48:18,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 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 03:48:18,981 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-03 03:48:18,982 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-03 03:48:18,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 03:48:18,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 03:48:18,987 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-03 03:48:19,366 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 296 302) no Hoare annotation was computed. [2022-11-03 03:48:19,366 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 296 302) the Hoare annotation is: true [2022-11-03 03:48:19,367 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 184 195) the Hoare annotation is: true [2022-11-03 03:48:19,367 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 184 195) no Hoare annotation was computed. [2022-11-03 03:48:19,367 INFO L895 garLoopResultBuilder]: At program point L283-1(lines 283 289) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (= ~pumpRunning~0 0)) (or .cse0 (not (= ~waterLevel~0 0)) (= |old(~waterLevel~0)| 0)))) [2022-11-03 03:48:19,367 INFO L895 garLoopResultBuilder]: At program point L312(lines 312 320) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-11-03 03:48:19,368 INFO L895 garLoopResultBuilder]: At program point L308(lines 308 325) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (= ~pumpRunning~0 0)) (or .cse0 (not (= ~waterLevel~0 0)) (= |old(~waterLevel~0)| 0)))) [2022-11-03 03:48:19,368 INFO L895 garLoopResultBuilder]: At program point L882(line 882) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-11-03 03:48:19,370 INFO L899 garLoopResultBuilder]: For program point L276-1(lines 275 294) no Hoare annotation was computed. [2022-11-03 03:48:19,370 INFO L895 garLoopResultBuilder]: At program point L318(line 318) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-11-03 03:48:19,370 INFO L899 garLoopResultBuilder]: For program point L252(lines 252 258) no Hoare annotation was computed. [2022-11-03 03:48:19,371 INFO L895 garLoopResultBuilder]: At program point L248(lines 248 261) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (and (not (= ~waterLevel~0 0)) (not (= |timeShift___utac_acc__Specification4_spec__1_~tmp~1#1| 0))) (= |old(~waterLevel~0)| 0)) (or .cse0 (= ~pumpRunning~0 0)))) [2022-11-03 03:48:19,372 INFO L895 garLoopResultBuilder]: At program point L248-1(lines 240 264) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (and (not (= ~waterLevel~0 0)) (not (= |timeShift___utac_acc__Specification4_spec__1_~tmp~1#1| 0))) (= |old(~waterLevel~0)| 0)) (or .cse0 (= ~pumpRunning~0 0)))) [2022-11-03 03:48:19,372 INFO L895 garLoopResultBuilder]: At program point L323(line 323) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (= ~pumpRunning~0 0)) (or .cse0 (not (= ~waterLevel~0 0)) (= |old(~waterLevel~0)| 0)))) [2022-11-03 03:48:19,372 INFO L895 garLoopResultBuilder]: At program point L323-1(lines 304 328) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (= ~pumpRunning~0 0)) (or .cse0 (not (= ~waterLevel~0 0)) (= |old(~waterLevel~0)| 0)))) [2022-11-03 03:48:19,373 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 272 295) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (= ~pumpRunning~0 0)) (or .cse0 (not (= ~waterLevel~0 0)) (= |old(~waterLevel~0)| 0)))) [2022-11-03 03:48:19,374 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 272 295) no Hoare annotation was computed. [2022-11-03 03:48:19,374 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 882) no Hoare annotation was computed. [2022-11-03 03:48:19,374 INFO L902 garLoopResultBuilder]: At program point L66-1(lines 66 70) the Hoare annotation is: true [2022-11-03 03:48:19,374 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 52 81) no Hoare annotation was computed. [2022-11-03 03:48:19,375 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 52 81) the Hoare annotation is: true [2022-11-03 03:48:19,379 INFO L902 garLoopResultBuilder]: At program point L62-2(lines 62 76) the Hoare annotation is: true [2022-11-03 03:48:19,379 INFO L902 garLoopResultBuilder]: At program point L58(line 58) the Hoare annotation is: true [2022-11-03 03:48:19,379 INFO L899 garLoopResultBuilder]: For program point L58-1(line 58) no Hoare annotation was computed. [2022-11-03 03:48:19,379 INFO L902 garLoopResultBuilder]: At program point L77(lines 52 81) the Hoare annotation is: true [2022-11-03 03:48:19,380 INFO L899 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2022-11-03 03:48:19,381 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2022-11-03 03:48:19,381 INFO L899 garLoopResultBuilder]: For program point L440(lines 440 446) no Hoare annotation was computed. [2022-11-03 03:48:19,382 INFO L895 garLoopResultBuilder]: At program point L440-1(lines 440 446) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-03 03:48:19,382 INFO L895 garLoopResultBuilder]: At program point L465(lines 420 467) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-03 03:48:19,386 INFO L895 garLoopResultBuilder]: At program point L432(line 432) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-03 03:48:19,386 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-03 03:48:19,387 INFO L895 garLoopResultBuilder]: At program point L140(lines 140 147) the Hoare annotation is: (and (= ~waterLevel~0 |ULTIMATE.start_main_~tmp~0#1|) (= ~pumpRunning~0 0) (not (= ~waterLevel~0 0))) [2022-11-03 03:48:19,387 INFO L902 garLoopResultBuilder]: At program point L140-2(lines 140 147) the Hoare annotation is: true [2022-11-03 03:48:19,387 INFO L895 garLoopResultBuilder]: At program point L458-2(lines 450 463) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-03 03:48:19,387 INFO L899 garLoopResultBuilder]: For program point L421(lines 420 467) no Hoare annotation was computed. [2022-11-03 03:48:19,387 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-03 03:48:19,388 INFO L895 garLoopResultBuilder]: At program point L442(line 442) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-03 03:48:19,388 INFO L902 garLoopResultBuilder]: At program point L471(lines 410 475) the Hoare annotation is: true [2022-11-03 03:48:19,388 INFO L899 garLoopResultBuilder]: For program point L430(lines 430 436) no Hoare annotation was computed. [2022-11-03 03:48:19,388 INFO L899 garLoopResultBuilder]: For program point L430-1(lines 430 436) no Hoare annotation was computed. [2022-11-03 03:48:19,388 INFO L895 garLoopResultBuilder]: At program point L468(lines 419 469) the Hoare annotation is: false [2022-11-03 03:48:19,388 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 172 183) no Hoare annotation was computed. [2022-11-03 03:48:19,389 INFO L902 garLoopResultBuilder]: At program point waterRiseENTRY(lines 172 183) the Hoare annotation is: true [2022-11-03 03:48:19,399 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-03 03:48:19,401 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 03:48:19,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 03:48:19 BoogieIcfgContainer [2022-11-03 03:48:19,429 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 03:48:19,430 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 03:48:19,430 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 03:48:19,430 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 03:48:19,430 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:48:17" (3/4) ... [2022-11-03 03:48:19,433 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-03 03:48:19,439 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-03 03:48:19,439 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-03 03:48:19,448 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-03 03:48:19,448 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-03 03:48:19,448 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-03 03:48:19,464 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 67 nodes and edges [2022-11-03 03:48:19,465 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2022-11-03 03:48:19,466 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-03 03:48:19,466 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-03 03:48:19,466 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-03 03:48:19,467 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 03:48:19,467 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 03:48:19,500 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || pumpRunning == 0) && ((!(\old(pumpRunning) == 0) || !(waterLevel == 0)) || \old(waterLevel) == 0) [2022-11-03 03:48:19,501 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || pumpRunning == 0) && ((!(\old(pumpRunning) == 0) || !(waterLevel == 0)) || \old(waterLevel) == 0) [2022-11-03 03:48:19,502 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || pumpRunning == 0) && ((!(\old(pumpRunning) == 0) || !(waterLevel == 0)) || \old(waterLevel) == 0) [2022-11-03 03:48:19,503 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || pumpRunning == 0) && ((!(\old(pumpRunning) == 0) || !(waterLevel == 0)) || \old(waterLevel) == 0) [2022-11-03 03:48:19,504 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || (!(waterLevel == 0) && !(tmp == 0))) || \old(waterLevel) == 0) && (!(\old(pumpRunning) == 0) || pumpRunning == 0) [2022-11-03 03:48:19,504 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || (!(waterLevel == 0) && !(tmp == 0))) || \old(waterLevel) == 0) && (!(\old(pumpRunning) == 0) || pumpRunning == 0) [2022-11-03 03:48:19,505 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-11-03 03:48:19,505 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-11-03 03:48:19,544 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ac1951-e8ba-4ebe-a09e-0a852863a688/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 03:48:19,544 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 03:48:19,545 INFO L158 Benchmark]: Toolchain (without parser) took 3496.01ms. Allocated memory was 86.0MB in the beginning and 142.6MB in the end (delta: 56.6MB). Free memory was 52.5MB in the beginning and 76.9MB in the end (delta: -24.5MB). Peak memory consumption was 31.4MB. Max. memory is 16.1GB. [2022-11-03 03:48:19,545 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 86.0MB. Free memory was 66.7MB in the beginning and 66.7MB in the end (delta: 27.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 03:48:19,546 INFO L158 Benchmark]: CACSL2BoogieTranslator took 564.00ms. Allocated memory was 86.0MB in the beginning and 117.4MB in the end (delta: 31.5MB). Free memory was 52.3MB in the beginning and 86.1MB in the end (delta: -33.9MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. [2022-11-03 03:48:19,546 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.80ms. Allocated memory is still 117.4MB. Free memory was 86.1MB in the beginning and 84.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 03:48:19,546 INFO L158 Benchmark]: Boogie Preprocessor took 28.47ms. Allocated memory is still 117.4MB. Free memory was 84.0MB in the beginning and 82.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 03:48:19,547 INFO L158 Benchmark]: RCFGBuilder took 653.18ms. Allocated memory is still 117.4MB. Free memory was 82.3MB in the beginning and 83.7MB in the end (delta: -1.4MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. [2022-11-03 03:48:19,547 INFO L158 Benchmark]: TraceAbstraction took 2064.92ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 83.0MB in the beginning and 81.3MB in the end (delta: 1.7MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB. [2022-11-03 03:48:19,547 INFO L158 Benchmark]: Witness Printer took 114.31ms. Allocated memory is still 142.6MB. Free memory was 81.3MB in the beginning and 76.9MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-03 03:48:19,550 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 86.0MB. Free memory was 66.7MB in the beginning and 66.7MB in the end (delta: 27.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 564.00ms. Allocated memory was 86.0MB in the beginning and 117.4MB in the end (delta: 31.5MB). Free memory was 52.3MB in the beginning and 86.1MB in the end (delta: -33.9MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.80ms. Allocated memory is still 117.4MB. Free memory was 86.1MB in the beginning and 84.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.47ms. Allocated memory is still 117.4MB. Free memory was 84.0MB in the beginning and 82.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 653.18ms. Allocated memory is still 117.4MB. Free memory was 82.3MB in the beginning and 83.7MB in the end (delta: -1.4MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. * TraceAbstraction took 2064.92ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 83.0MB in the beginning and 81.3MB in the end (delta: 1.7MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB. * Witness Printer took 114.31ms. Allocated memory is still 142.6MB. Free memory was 81.3MB in the beginning and 76.9MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 882]: 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 6 procedures, 44 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 86 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 83 mSDsluCounter, 234 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 153 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 121 IncrementalHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 116 mSDtfsCounter, 121 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred in iteration=3, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 13 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 28 LocationsWithAnnotation, 129 PreInvPairs, 150 NumberOfFragments, 227 HoareAnnotationTreeSize, 129 FomulaSimplifications, 34 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 28 FomulaSimplificationsInter, 207 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 157 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 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: 304]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || pumpRunning == 0) && ((!(\old(pumpRunning) == 0) || !(waterLevel == 0)) || \old(waterLevel) == 0) - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 312]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 419]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 140]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 240]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || (!(waterLevel == 0) && !(tmp == 0))) || \old(waterLevel) == 0) && (!(\old(pumpRunning) == 0) || pumpRunning == 0) - InvariantResult [Line: 140]: Loop Invariant Derived loop invariant: (waterLevel == tmp && pumpRunning == 0) && !(waterLevel == 0) - InvariantResult [Line: 272]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || pumpRunning == 0) && ((!(\old(pumpRunning) == 0) || !(waterLevel == 0)) || \old(waterLevel) == 0) - InvariantResult [Line: 882]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 410]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 440]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 308]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || pumpRunning == 0) && ((!(\old(pumpRunning) == 0) || !(waterLevel == 0)) || \old(waterLevel) == 0) - InvariantResult [Line: 420]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 283]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || pumpRunning == 0) && ((!(\old(pumpRunning) == 0) || !(waterLevel == 0)) || \old(waterLevel) == 0) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 248]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || (!(waterLevel == 0) && !(tmp == 0))) || \old(waterLevel) == 0) && (!(\old(pumpRunning) == 0) || pumpRunning == 0) RESULT: Ultimate proved your program to be correct! [2022-11-03 03:48:19,617 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2ac1951-e8ba-4ebe-a09e-0a852863a688/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE