./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product08.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_ed10c5ea-0c27-40f9-b747-86586966ec85/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed10c5ea-0c27-40f9-b747-86586966ec85/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed10c5ea-0c27-40f9-b747-86586966ec85/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed10c5ea-0c27-40f9-b747-86586966ec85/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product08.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed10c5ea-0c27-40f9-b747-86586966ec85/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed10c5ea-0c27-40f9-b747-86586966ec85/bin/utaipan-gh47qXpMRh --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 87d91e56d61e49620ea5a2c0236a89cbd5cce3c0ef7c136160e7b734dcc26431 --- 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-2329fc7 [2022-12-14 14:10:15,773 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:10:15,774 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:10:15,792 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:10:15,792 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:10:15,793 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:10:15,794 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:10:15,796 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:10:15,797 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:10:15,798 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:10:15,799 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:10:15,800 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:10:15,800 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:10:15,801 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:10:15,802 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:10:15,803 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:10:15,804 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:10:15,805 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:10:15,806 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:10:15,808 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:10:15,809 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:10:15,810 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:10:15,812 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:10:15,812 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:10:15,815 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:10:15,816 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:10:15,816 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:10:15,817 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:10:15,817 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:10:15,818 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:10:15,818 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:10:15,819 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:10:15,820 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:10:15,821 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:10:15,821 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:10:15,822 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:10:15,822 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:10:15,822 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:10:15,823 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:10:15,823 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:10:15,824 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:10:15,825 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed10c5ea-0c27-40f9-b747-86586966ec85/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 14:10:15,844 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:10:15,844 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:10:15,844 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:10:15,845 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:10:15,845 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:10:15,845 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:10:15,846 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:10:15,846 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:10:15,846 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:10:15,846 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 14:10:15,846 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:10:15,846 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:10:15,846 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 14:10:15,847 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 14:10:15,847 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:10:15,847 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 14:10:15,847 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 14:10:15,847 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 14:10:15,848 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:10:15,848 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 14:10:15,848 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 14:10:15,848 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 14:10:15,849 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:10:15,849 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 14:10:15,849 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:10:15,849 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 14:10:15,849 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 14:10:15,849 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 14:10:15,849 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:10:15,850 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 14:10:15,850 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:10:15,850 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:10:15,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:10:15,850 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:10:15,850 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 14:10:15,850 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:10:15,851 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 14:10:15,851 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 14:10:15,851 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 14:10:15,851 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 14:10:15,851 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:10:15,851 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_ed10c5ea-0c27-40f9-b747-86586966ec85/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed10c5ea-0c27-40f9-b747-86586966ec85/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87d91e56d61e49620ea5a2c0236a89cbd5cce3c0ef7c136160e7b734dcc26431 [2022-12-14 14:10:16,062 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:10:16,079 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:10:16,081 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:10:16,082 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:10:16,082 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:10:16,083 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed10c5ea-0c27-40f9-b747-86586966ec85/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/minepump_spec2_product08.cil.c [2022-12-14 14:10:18,657 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:10:18,839 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:10:18,839 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed10c5ea-0c27-40f9-b747-86586966ec85/sv-benchmarks/c/product-lines/minepump_spec2_product08.cil.c [2022-12-14 14:10:18,852 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed10c5ea-0c27-40f9-b747-86586966ec85/bin/utaipan-gh47qXpMRh/data/3c4490280/f4e1d95296d14e9da4e3d37a02aa38f2/FLAG63e805b96 [2022-12-14 14:10:18,865 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed10c5ea-0c27-40f9-b747-86586966ec85/bin/utaipan-gh47qXpMRh/data/3c4490280/f4e1d95296d14e9da4e3d37a02aa38f2 [2022-12-14 14:10:18,868 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:10:18,869 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:10:18,870 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:10:18,871 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:10:18,874 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:10:18,874 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:10:18" (1/1) ... [2022-12-14 14:10:18,875 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@464f70aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:10:18, skipping insertion in model container [2022-12-14 14:10:18,876 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:10:18" (1/1) ... [2022-12-14 14:10:18,882 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:10:18,917 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:10:19,086 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed10c5ea-0c27-40f9-b747-86586966ec85/sv-benchmarks/c/product-lines/minepump_spec2_product08.cil.c[13819,13832] [2022-12-14 14:10:19,100 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:10:19,111 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:10:19,161 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed10c5ea-0c27-40f9-b747-86586966ec85/sv-benchmarks/c/product-lines/minepump_spec2_product08.cil.c[13819,13832] [2022-12-14 14:10:19,169 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:10:19,185 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:10:19,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:10:19 WrapperNode [2022-12-14 14:10:19,186 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:10:19,187 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:10:19,187 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:10:19,187 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:10:19,194 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:10:19" (1/1) ... [2022-12-14 14:10:19,204 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:10:19" (1/1) ... [2022-12-14 14:10:19,225 INFO L138 Inliner]: procedures = 53, calls = 96, calls flagged for inlining = 20, calls inlined = 17, statements flattened = 159 [2022-12-14 14:10:19,225 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:10:19,226 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:10:19,226 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:10:19,226 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:10:19,234 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:10:19" (1/1) ... [2022-12-14 14:10:19,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:10:19" (1/1) ... [2022-12-14 14:10:19,235 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:10:19" (1/1) ... [2022-12-14 14:10:19,236 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:10:19" (1/1) ... [2022-12-14 14:10:19,238 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:10:19" (1/1) ... [2022-12-14 14:10:19,241 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:10:19" (1/1) ... [2022-12-14 14:10:19,241 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:10:19" (1/1) ... [2022-12-14 14:10:19,242 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:10:19" (1/1) ... [2022-12-14 14:10:19,244 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:10:19,244 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:10:19,244 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:10:19,245 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:10:19,245 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:10:19" (1/1) ... [2022-12-14 14:10:19,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:10:19,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed10c5ea-0c27-40f9-b747-86586966ec85/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:10:19,270 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed10c5ea-0c27-40f9-b747-86586966ec85/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:10:19,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed10c5ea-0c27-40f9-b747-86586966ec85/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:10:19,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 14:10:19,304 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-12-14 14:10:19,304 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-12-14 14:10:19,304 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-12-14 14:10:19,305 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-12-14 14:10:19,305 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-12-14 14:10:19,305 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-12-14 14:10:19,305 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-12-14 14:10:19,305 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-12-14 14:10:19,305 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-12-14 14:10:19,306 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-12-14 14:10:19,306 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-12-14 14:10:19,306 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-12-14 14:10:19,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 14:10:19,306 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-12-14 14:10:19,307 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-12-14 14:10:19,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:10:19,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:10:19,379 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:10:19,381 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:10:19,563 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:10:19,615 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:10:19,615 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 14:10:19,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:10:19 BoogieIcfgContainer [2022-12-14 14:10:19,618 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:10:19,620 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:10:19,621 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:10:19,624 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:10:19,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:10:18" (1/3) ... [2022-12-14 14:10:19,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bd00493 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:10:19, skipping insertion in model container [2022-12-14 14:10:19,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:10:19" (2/3) ... [2022-12-14 14:10:19,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bd00493 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:10:19, skipping insertion in model container [2022-12-14 14:10:19,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:10:19" (3/3) ... [2022-12-14 14:10:19,627 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product08.cil.c [2022-12-14 14:10:19,646 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:10:19,646 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 14:10:19,696 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:10:19,701 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;@3f1c3683, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:10:19,702 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 14:10:19,706 INFO L276 IsEmpty]: Start isEmpty. Operand has 59 states, 38 states have (on average 1.4473684210526316) internal successors, (55), 45 states have internal predecessors, (55), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2022-12-14 14:10:19,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 14:10:19,715 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:10:19,716 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:10:19,716 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:10:19,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:10:19,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1579057025, now seen corresponding path program 1 times [2022-12-14 14:10:19,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:10:19,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269057721] [2022-12-14 14:10:19,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:10:19,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:10:19,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:10:19,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:10:19,886 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:10:19,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269057721] [2022-12-14 14:10:19,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269057721] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:10:19,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:10:19,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 14:10:19,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426701576] [2022-12-14 14:10:19,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:10:19,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 14:10:19,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:10:19,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 14:10:19,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 14:10:19,916 INFO L87 Difference]: Start difference. First operand has 59 states, 38 states have (on average 1.4473684210526316) internal successors, (55), 45 states have internal predecessors, (55), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 14:10:19,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:10:19,973 INFO L93 Difference]: Finished difference Result 116 states and 159 transitions. [2022-12-14 14:10:19,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 14:10:19,975 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 [2022-12-14 14:10:19,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:10:19,981 INFO L225 Difference]: With dead ends: 116 [2022-12-14 14:10:19,981 INFO L226 Difference]: Without dead ends: 54 [2022-12-14 14:10:19,984 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 [2022-12-14 14:10:19,986 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:10:19,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 60 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:10:20,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-12-14 14:10:20,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2022-12-14 14:10:20,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 35 states have (on average 1.3428571428571427) internal successors, (47), 41 states have internal predecessors, (47), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 14:10:20,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 70 transitions. [2022-12-14 14:10:20,024 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 70 transitions. Word has length 17 [2022-12-14 14:10:20,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:10:20,024 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 70 transitions. [2022-12-14 14:10:20,024 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) [2022-12-14 14:10:20,025 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 70 transitions. [2022-12-14 14:10:20,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-14 14:10:20,037 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:10:20,037 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:10:20,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 14:10:20,038 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:10:20,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:10:20,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1125168579, now seen corresponding path program 1 times [2022-12-14 14:10:20,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:10:20,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507460924] [2022-12-14 14:10:20,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:10:20,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:10:20,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:10:20,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:10:20,128 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:10:20,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507460924] [2022-12-14 14:10:20,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507460924] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:10:20,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:10:20,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:10:20,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734628529] [2022-12-14 14:10:20,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:10:20,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:10:20,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:10:20,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:10:20,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:10:20,131 INFO L87 Difference]: Start difference. First operand 54 states and 70 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) [2022-12-14 14:10:20,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:10:20,163 INFO L93 Difference]: Finished difference Result 80 states and 102 transitions. [2022-12-14 14:10:20,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:10:20,163 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 [2022-12-14 14:10:20,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:10:20,164 INFO L225 Difference]: With dead ends: 80 [2022-12-14 14:10:20,165 INFO L226 Difference]: Without dead ends: 46 [2022-12-14 14:10:20,165 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 [2022-12-14 14:10:20,167 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 14 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:10:20,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 76 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:10:20,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-12-14 14:10:20,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-12-14 14:10:20,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 36 states have internal predecessors, (41), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2022-12-14 14:10:20,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 59 transitions. [2022-12-14 14:10:20,177 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 59 transitions. Word has length 18 [2022-12-14 14:10:20,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:10:20,177 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 59 transitions. [2022-12-14 14:10:20,177 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) [2022-12-14 14:10:20,177 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 59 transitions. [2022-12-14 14:10:20,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-14 14:10:20,178 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:10:20,178 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] [2022-12-14 14:10:20,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 14:10:20,179 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:10:20,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:10:20,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1583560075, now seen corresponding path program 1 times [2022-12-14 14:10:20,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:10:20,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470189662] [2022-12-14 14:10:20,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:10:20,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:10:20,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:10:20,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:10:20,276 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:10:20,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470189662] [2022-12-14 14:10:20,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470189662] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:10:20,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:10:20,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:10:20,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459262160] [2022-12-14 14:10:20,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:10:20,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:10:20,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:10:20,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:10:20,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:10:20,278 INFO L87 Difference]: Start difference. First operand 46 states and 59 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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) [2022-12-14 14:10:20,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:10:20,349 INFO L93 Difference]: Finished difference Result 124 states and 160 transitions. [2022-12-14 14:10:20,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 14:10:20,350 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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 21 [2022-12-14 14:10:20,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:10:20,352 INFO L225 Difference]: With dead ends: 124 [2022-12-14 14:10:20,352 INFO L226 Difference]: Without dead ends: 80 [2022-12-14 14:10:20,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:10:20,354 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 82 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:10:20,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 125 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:10:20,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-12-14 14:10:20,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 77. [2022-12-14 14:10:20,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 51 states have (on average 1.3725490196078431) internal successors, (70), 60 states have internal predecessors, (70), 14 states have call successors, (14), 11 states have call predecessors, (14), 11 states have return successors, (15), 11 states have call predecessors, (15), 14 states have call successors, (15) [2022-12-14 14:10:20,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 99 transitions. [2022-12-14 14:10:20,372 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 99 transitions. Word has length 21 [2022-12-14 14:10:20,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:10:20,373 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 99 transitions. [2022-12-14 14:10:20,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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) [2022-12-14 14:10:20,373 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 99 transitions. [2022-12-14 14:10:20,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 14:10:20,375 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:10:20,375 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] [2022-12-14 14:10:20,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 14:10:20,375 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:10:20,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:10:20,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1833173345, now seen corresponding path program 1 times [2022-12-14 14:10:20,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:10:20,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820693189] [2022-12-14 14:10:20,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:10:20,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:10:20,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:10:20,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:10:20,508 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:10:20,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820693189] [2022-12-14 14:10:20,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820693189] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:10:20,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:10:20,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 14:10:20,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243816056] [2022-12-14 14:10:20,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:10:20,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 14:10:20,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:10:20,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 14:10:20,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 14:10:20,512 INFO L87 Difference]: Start difference. First operand 77 states and 99 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 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) [2022-12-14 14:10:20,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:10:20,629 INFO L93 Difference]: Finished difference Result 223 states and 292 transitions. [2022-12-14 14:10:20,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 14:10:20,629 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 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 24 [2022-12-14 14:10:20,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:10:20,633 INFO L225 Difference]: With dead ends: 223 [2022-12-14 14:10:20,633 INFO L226 Difference]: Without dead ends: 148 [2022-12-14 14:10:20,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-12-14 14:10:20,635 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 35 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:10:20,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 234 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:10:20,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2022-12-14 14:10:20,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 140. [2022-12-14 14:10:20,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 93 states have (on average 1.3440860215053763) internal successors, (125), 108 states have internal predecessors, (125), 26 states have call successors, (26), 20 states have call predecessors, (26), 20 states have return successors, (28), 20 states have call predecessors, (28), 26 states have call successors, (28) [2022-12-14 14:10:20,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 179 transitions. [2022-12-14 14:10:20,666 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 179 transitions. Word has length 24 [2022-12-14 14:10:20,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:10:20,666 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 179 transitions. [2022-12-14 14:10:20,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 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) [2022-12-14 14:10:20,667 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 179 transitions. [2022-12-14 14:10:20,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-14 14:10:20,669 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:10:20,669 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] [2022-12-14 14:10:20,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 14:10:20,670 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:10:20,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:10:20,670 INFO L85 PathProgramCache]: Analyzing trace with hash 816333014, now seen corresponding path program 1 times [2022-12-14 14:10:20,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:10:20,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406646582] [2022-12-14 14:10:20,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:10:20,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:10:20,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:10:20,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:10:20,753 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:10:20,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406646582] [2022-12-14 14:10:20,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406646582] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:10:20,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:10:20,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:10:20,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57571165] [2022-12-14 14:10:20,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:10:20,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:10:20,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:10:20,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:10:20,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:10:20,755 INFO L87 Difference]: Start difference. First operand 140 states and 179 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 14:10:20,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:10:20,808 INFO L93 Difference]: Finished difference Result 215 states and 282 transitions. [2022-12-14 14:10:20,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:10:20,809 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 27 [2022-12-14 14:10:20,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:10:20,810 INFO L225 Difference]: With dead ends: 215 [2022-12-14 14:10:20,810 INFO L226 Difference]: Without dead ends: 213 [2022-12-14 14:10:20,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:10:20,811 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 34 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:10:20,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 97 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:10:20,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2022-12-14 14:10:20,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 213. [2022-12-14 14:10:20,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 141 states have (on average 1.3475177304964538) internal successors, (190), 164 states have internal predecessors, (190), 40 states have call successors, (40), 31 states have call predecessors, (40), 31 states have return successors, (49), 31 states have call predecessors, (49), 40 states have call successors, (49) [2022-12-14 14:10:20,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 279 transitions. [2022-12-14 14:10:20,847 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 279 transitions. Word has length 27 [2022-12-14 14:10:20,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:10:20,847 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 279 transitions. [2022-12-14 14:10:20,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 14:10:20,847 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 279 transitions. [2022-12-14 14:10:20,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-12-14 14:10:20,850 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:10:20,851 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 14:10:20,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 14:10:20,851 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:10:20,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:10:20,852 INFO L85 PathProgramCache]: Analyzing trace with hash -386908829, now seen corresponding path program 1 times [2022-12-14 14:10:20,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:10:20,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984022496] [2022-12-14 14:10:20,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:10:20,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:10:20,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:10:21,081 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 14:10:21,082 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:10:21,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984022496] [2022-12-14 14:10:21,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984022496] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:10:21,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:10:21,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 14:10:21,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074261471] [2022-12-14 14:10:21,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:10:21,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 14:10:21,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:10:21,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 14:10:21,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 14:10:21,084 INFO L87 Difference]: Start difference. First operand 213 states and 279 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-12-14 14:10:21,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:10:21,206 INFO L93 Difference]: Finished difference Result 329 states and 433 transitions. [2022-12-14 14:10:21,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 14:10:21,207 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 48 [2022-12-14 14:10:21,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:10:21,207 INFO L225 Difference]: With dead ends: 329 [2022-12-14 14:10:21,208 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 14:10:21,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-12-14 14:10:21,210 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 35 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:10:21,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 62 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:10:21,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 14:10:21,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 14:10:21,211 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) [2022-12-14 14:10:21,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 14:10:21,212 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48 [2022-12-14 14:10:21,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:10:21,212 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 14:10:21,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-12-14 14:10:21,212 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 14:10:21,212 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 14:10:21,215 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 14:10:21,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 14:10:21,217 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 14:10:21,807 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 831 838) no Hoare annotation was computed. [2022-12-14 14:10:21,807 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 831 838) the Hoare annotation is: true [2022-12-14 14:10:21,807 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 790 796) no Hoare annotation was computed. [2022-12-14 14:10:21,807 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 790 796) the Hoare annotation is: true [2022-12-14 14:10:21,808 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 552 563) the Hoare annotation is: true [2022-12-14 14:10:21,808 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 552 563) no Hoare annotation was computed. [2022-12-14 14:10:21,808 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 564 572) the Hoare annotation is: true [2022-12-14 14:10:21,808 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 564 572) no Hoare annotation was computed. [2022-12-14 14:10:21,808 INFO L899 garLoopResultBuilder]: For program point L770-1(lines 769 788) no Hoare annotation was computed. [2022-12-14 14:10:21,808 INFO L895 garLoopResultBuilder]: At program point L812(line 812) the Hoare annotation is: (or (not (= |old(~methAndRunningLastTime~0)| 0)) (not (<= |old(~pumpRunning~0)| 0)) (not (<= 0 |old(~pumpRunning~0)|))) [2022-12-14 14:10:21,809 INFO L895 garLoopResultBuilder]: At program point L808(line 808) the Hoare annotation is: (or (not (= |old(~methAndRunningLastTime~0)| 0)) (not (<= |old(~pumpRunning~0)| 0)) (not (<= 0 |old(~pumpRunning~0)|))) [2022-12-14 14:10:21,809 INFO L895 garLoopResultBuilder]: At program point L610(line 610) the Hoare annotation is: (or (not (= |old(~methAndRunningLastTime~0)| 0)) (not (<= |old(~pumpRunning~0)| 0)) (not (<= 0 |old(~pumpRunning~0)|))) [2022-12-14 14:10:21,809 INFO L899 garLoopResultBuilder]: For program point L672(lines 672 682) no Hoare annotation was computed. [2022-12-14 14:10:21,809 INFO L895 garLoopResultBuilder]: At program point L668(lines 668 685) the Hoare annotation is: (let ((.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not (<= |old(~pumpRunning~0)| 0))) (.cse2 (not (<= 0 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~4#1| 0) (not (= ~methaneLevelCritical~0 0)) .cse2) (or .cse0 .cse1 .cse2 (and (<= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (<= 0 ~pumpRunning~0))))) [2022-12-14 14:10:21,809 INFO L895 garLoopResultBuilder]: At program point L668-1(lines 660 688) the Hoare annotation is: (let ((.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not (<= |old(~pumpRunning~0)| 0))) (.cse2 (not (<= 0 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~4#1| 0) (not (= ~methaneLevelCritical~0 0)) .cse2) (or .cse0 .cse1 .cse2 (and (<= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (<= 0 ~pumpRunning~0))))) [2022-12-14 14:10:21,810 INFO L895 garLoopResultBuilder]: At program point L817(line 817) the Hoare annotation is: (or (not (= |old(~methAndRunningLastTime~0)| 0)) (and (<= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (<= 0 ~pumpRunning~0) (not (= 0 ~systemActive~0))) (not (<= |old(~pumpRunning~0)| 0)) (not (<= 0 |old(~pumpRunning~0)|))) [2022-12-14 14:10:21,810 INFO L895 garLoopResultBuilder]: At program point L817-1(lines 798 822) the Hoare annotation is: (or (not (= |old(~methAndRunningLastTime~0)| 0)) (and (<= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (<= 0 ~pumpRunning~0) (not (= 0 ~systemActive~0))) (not (<= |old(~pumpRunning~0)| 0)) (not (<= 0 |old(~pumpRunning~0)|))) [2022-12-14 14:10:21,810 INFO L899 garLoopResultBuilder]: For program point L673(lines 673 679) no Hoare annotation was computed. [2022-12-14 14:10:21,810 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 766 789) the Hoare annotation is: (or (not (= |old(~methAndRunningLastTime~0)| 0)) (not (<= |old(~pumpRunning~0)| 0)) (not (<= 0 |old(~pumpRunning~0)|)) (and (<= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (<= 0 ~pumpRunning~0))) [2022-12-14 14:10:21,810 INFO L899 garLoopResultBuilder]: For program point L777-1(lines 777 783) no Hoare annotation was computed. [2022-12-14 14:10:21,810 INFO L899 garLoopResultBuilder]: For program point L806(lines 806 814) no Hoare annotation was computed. [2022-12-14 14:10:21,810 INFO L899 garLoopResultBuilder]: For program point L802(lines 802 819) no Hoare annotation was computed. [2022-12-14 14:10:21,811 INFO L895 garLoopResultBuilder]: At program point L666(line 666) the Hoare annotation is: (or (not (= |old(~methAndRunningLastTime~0)| 0)) (not (<= |old(~pumpRunning~0)| 0)) (not (<= 0 |old(~pumpRunning~0)|)) (and (<= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (<= 0 ~pumpRunning~0))) [2022-12-14 14:10:21,811 INFO L899 garLoopResultBuilder]: For program point L666-1(line 666) no Hoare annotation was computed. [2022-12-14 14:10:21,811 INFO L895 garLoopResultBuilder]: At program point L844(line 844) the Hoare annotation is: (or (not (= |old(~methAndRunningLastTime~0)| 0)) (not (<= |old(~pumpRunning~0)| 0)) (not (<= 0 |old(~pumpRunning~0)|))) [2022-12-14 14:10:21,811 INFO L895 garLoopResultBuilder]: At program point L844-1(line 844) the Hoare annotation is: (or (not (= |old(~methAndRunningLastTime~0)| 0)) (not (<= |old(~pumpRunning~0)| 0)) (not (<= 0 |old(~pumpRunning~0)|))) [2022-12-14 14:10:21,811 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 766 789) no Hoare annotation was computed. [2022-12-14 14:10:21,811 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 610) no Hoare annotation was computed. [2022-12-14 14:10:21,811 INFO L902 garLoopResultBuilder]: At program point L66-1(lines 66 70) the Hoare annotation is: true [2022-12-14 14:10:21,812 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 52 81) no Hoare annotation was computed. [2022-12-14 14:10:21,812 INFO L902 garLoopResultBuilder]: At program point L62-2(lines 62 76) the Hoare annotation is: true [2022-12-14 14:10:21,812 INFO L902 garLoopResultBuilder]: At program point L58(line 58) the Hoare annotation is: true [2022-12-14 14:10:21,812 INFO L899 garLoopResultBuilder]: For program point L58-1(line 58) no Hoare annotation was computed. [2022-12-14 14:10:21,812 INFO L902 garLoopResultBuilder]: At program point L77(lines 52 81) the Hoare annotation is: true [2022-12-14 14:10:21,812 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 52 81) the Hoare annotation is: true [2022-12-14 14:10:21,812 INFO L899 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2022-12-14 14:10:21,812 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2022-12-14 14:10:21,812 INFO L899 garLoopResultBuilder]: For program point L899(lines 899 905) no Hoare annotation was computed. [2022-12-14 14:10:21,813 INFO L895 garLoopResultBuilder]: At program point L899-1(lines 899 905) the Hoare annotation is: (and (<= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (<= 0 ~pumpRunning~0)) [2022-12-14 14:10:21,813 INFO L902 garLoopResultBuilder]: At program point L755(lines 692 759) the Hoare annotation is: true [2022-12-14 14:10:21,813 INFO L899 garLoopResultBuilder]: For program point L722(lines 722 728) no Hoare annotation was computed. [2022-12-14 14:10:21,813 INFO L899 garLoopResultBuilder]: For program point L722-1(lines 722 728) no Hoare annotation was computed. [2022-12-14 14:10:21,813 INFO L895 garLoopResultBuilder]: At program point L714(line 714) the Hoare annotation is: (and (<= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (<= 0 ~pumpRunning~0)) [2022-12-14 14:10:21,813 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 14:10:21,813 INFO L895 garLoopResultBuilder]: At program point L752(lines 701 753) the Hoare annotation is: false [2022-12-14 14:10:21,813 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2022-12-14 14:10:21,813 INFO L895 garLoopResultBuilder]: At program point L901(line 901) the Hoare annotation is: false [2022-12-14 14:10:21,814 INFO L899 garLoopResultBuilder]: For program point L740(lines 740 746) no Hoare annotation was computed. [2022-12-14 14:10:21,814 INFO L895 garLoopResultBuilder]: At program point L740-2(lines 732 747) the Hoare annotation is: (and (<= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (<= 0 ~pumpRunning~0)) [2022-12-14 14:10:21,814 INFO L899 garLoopResultBuilder]: For program point L703(lines 702 751) no Hoare annotation was computed. [2022-12-14 14:10:21,814 INFO L895 garLoopResultBuilder]: At program point L732(lines 732 747) the Hoare annotation is: (and (<= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (<= 0 ~pumpRunning~0)) [2022-12-14 14:10:21,814 INFO L895 garLoopResultBuilder]: At program point L724(line 724) the Hoare annotation is: (and (<= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (<= 0 ~pumpRunning~0)) [2022-12-14 14:10:21,814 INFO L895 garLoopResultBuilder]: At program point L142(lines 142 149) the Hoare annotation is: (and (<= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= |ULTIMATE.start_main_~tmp~0#1| 1) (<= 0 ~pumpRunning~0) (not (= 0 ~systemActive~0))) [2022-12-14 14:10:21,814 INFO L895 garLoopResultBuilder]: At program point L749(lines 702 751) the Hoare annotation is: (and (<= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (<= 0 ~pumpRunning~0)) [2022-12-14 14:10:21,814 INFO L902 garLoopResultBuilder]: At program point L142-2(lines 142 149) the Hoare annotation is: true [2022-12-14 14:10:21,815 INFO L899 garLoopResultBuilder]: For program point L712(lines 712 718) no Hoare annotation was computed. [2022-12-14 14:10:21,815 INFO L899 garLoopResultBuilder]: For program point L712-1(lines 712 718) no Hoare annotation was computed. [2022-12-14 14:10:21,815 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 540 551) no Hoare annotation was computed. [2022-12-14 14:10:21,815 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 540 551) the Hoare annotation is: true [2022-12-14 14:10:21,818 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-12-14 14:10:21,820 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 14:10:21,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 02:10:21 BoogieIcfgContainer [2022-12-14 14:10:21,833 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 14:10:21,834 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 14:10:21,834 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 14:10:21,834 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 14:10:21,835 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:10:19" (3/4) ... [2022-12-14 14:10:21,838 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 14:10:21,843 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-12-14 14:10:21,844 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-12-14 14:10:21,844 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-12-14 14:10:21,844 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-12-14 14:10:21,844 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-12-14 14:10:21,844 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-12-14 14:10:21,844 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-12-14 14:10:21,849 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 38 nodes and edges [2022-12-14 14:10:21,850 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-12-14 14:10:21,850 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-14 14:10:21,850 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 14:10:21,850 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 14:10:21,870 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(methAndRunningLastTime) == 0) || !(\old(pumpRunning) <= 0)) || !(0 <= \old(pumpRunning))) || ((pumpRunning <= 0 && methAndRunningLastTime == 0) && 0 <= pumpRunning) [2022-12-14 14:10:21,871 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(methAndRunningLastTime) == 0) || (((pumpRunning <= 0 && methAndRunningLastTime == 0) && 0 <= pumpRunning) && !(0 == systemActive))) || !(\old(pumpRunning) <= 0)) || !(0 <= \old(pumpRunning)) [2022-12-14 14:10:21,871 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(methAndRunningLastTime) == 0) || !(\old(pumpRunning) <= 0)) || tmp == 0) || !(methaneLevelCritical == 0)) || !(0 <= \old(pumpRunning))) && (((!(\old(methAndRunningLastTime) == 0) || !(\old(pumpRunning) <= 0)) || !(0 <= \old(pumpRunning))) || ((pumpRunning <= 0 && methAndRunningLastTime == 0) && 0 <= pumpRunning)) [2022-12-14 14:10:21,871 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(methAndRunningLastTime) == 0) || !(\old(pumpRunning) <= 0)) || !(0 <= \old(pumpRunning)) [2022-12-14 14:10:21,872 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(methAndRunningLastTime) == 0) || !(\old(pumpRunning) <= 0)) || tmp == 0) || !(methaneLevelCritical == 0)) || !(0 <= \old(pumpRunning))) && (((!(\old(methAndRunningLastTime) == 0) || !(\old(pumpRunning) <= 0)) || !(0 <= \old(pumpRunning))) || ((pumpRunning <= 0 && methAndRunningLastTime == 0) && 0 <= pumpRunning)) [2022-12-14 14:10:21,872 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(methAndRunningLastTime) == 0) || !(\old(pumpRunning) <= 0)) || !(0 <= \old(pumpRunning)) [2022-12-14 14:10:21,893 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed10c5ea-0c27-40f9-b747-86586966ec85/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 14:10:21,894 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 14:10:21,894 INFO L158 Benchmark]: Toolchain (without parser) took 3025.15ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 122.8MB in the beginning and 150.6MB in the end (delta: -27.8MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. [2022-12-14 14:10:21,894 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 159.4MB. Free memory is still 131.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:10:21,895 INFO L158 Benchmark]: CACSL2BoogieTranslator took 316.01ms. Allocated memory is still 159.4MB. Free memory was 122.2MB in the beginning and 104.5MB in the end (delta: 17.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 14:10:21,895 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.25ms. Allocated memory is still 159.4MB. Free memory was 103.9MB in the beginning and 102.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 14:10:21,895 INFO L158 Benchmark]: Boogie Preprocessor took 17.75ms. Allocated memory is still 159.4MB. Free memory was 101.8MB in the beginning and 100.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:10:21,896 INFO L158 Benchmark]: RCFGBuilder took 373.44ms. Allocated memory is still 159.4MB. Free memory was 100.8MB in the beginning and 80.9MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-12-14 14:10:21,896 INFO L158 Benchmark]: TraceAbstraction took 2213.13ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 80.3MB in the beginning and 155.8MB in the end (delta: -75.5MB). Peak memory consumption was 45.4MB. Max. memory is 16.1GB. [2022-12-14 14:10:21,896 INFO L158 Benchmark]: Witness Printer took 59.58ms. Allocated memory is still 192.9MB. Free memory was 155.8MB in the beginning and 150.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 14:10:21,898 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 159.4MB. Free memory is still 131.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 316.01ms. Allocated memory is still 159.4MB. Free memory was 122.2MB in the beginning and 104.5MB in the end (delta: 17.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.25ms. Allocated memory is still 159.4MB. Free memory was 103.9MB in the beginning and 102.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.75ms. Allocated memory is still 159.4MB. Free memory was 101.8MB in the beginning and 100.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 373.44ms. Allocated memory is still 159.4MB. Free memory was 100.8MB in the beginning and 80.9MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 2213.13ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 80.3MB in the beginning and 155.8MB in the end (delta: -75.5MB). Peak memory consumption was 45.4MB. Max. memory is 16.1GB. * Witness Printer took 59.58ms. Allocated memory is still 192.9MB. Free memory was 155.8MB in the beginning and 150.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 610]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 59 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 212 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 200 mSDsluCounter, 654 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 364 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 283 IncrementalHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 290 mSDtfsCounter, 283 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=213occurred in iteration=5, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 11 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 33 LocationsWithAnnotation, 299 PreInvPairs, 347 NumberOfFragments, 384 HoareAnnotationTreeSize, 299 FomulaSimplifications, 45 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 33 FomulaSimplificationsInter, 1812 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 155 NumberOfCodeBlocks, 155 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 149 ConstructedInterpolants, 0 QuantifiedInterpolants, 372 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 19/19 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: 798]: Loop Invariant Derived loop invariant: ((!(\old(methAndRunningLastTime) == 0) || (((pumpRunning <= 0 && methAndRunningLastTime == 0) && 0 <= pumpRunning) && !(0 == systemActive))) || !(\old(pumpRunning) <= 0)) || !(0 <= \old(pumpRunning)) - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 702]: Loop Invariant Derived loop invariant: (((pumpRunning <= 0 && methAndRunningLastTime == 0) && tmp == 1) && splverifierCounter == 0) && 0 <= pumpRunning - InvariantResult [Line: 701]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 692]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 668]: Loop Invariant Derived loop invariant: ((((!(\old(methAndRunningLastTime) == 0) || !(\old(pumpRunning) <= 0)) || tmp == 0) || !(methaneLevelCritical == 0)) || !(0 <= \old(pumpRunning))) && (((!(\old(methAndRunningLastTime) == 0) || !(\old(pumpRunning) <= 0)) || !(0 <= \old(pumpRunning))) || ((pumpRunning <= 0 && methAndRunningLastTime == 0) && 0 <= pumpRunning)) - InvariantResult [Line: 732]: Loop Invariant Derived loop invariant: (((pumpRunning <= 0 && methAndRunningLastTime == 0) && tmp == 1) && splverifierCounter == 0) && 0 <= pumpRunning - InvariantResult [Line: 844]: Loop Invariant Derived loop invariant: (!(\old(methAndRunningLastTime) == 0) || !(\old(pumpRunning) <= 0)) || !(0 <= \old(pumpRunning)) - InvariantResult [Line: 142]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 610]: Loop Invariant Derived loop invariant: (!(\old(methAndRunningLastTime) == 0) || !(\old(pumpRunning) <= 0)) || !(0 <= \old(pumpRunning)) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 899]: Loop Invariant Derived loop invariant: (((pumpRunning <= 0 && methAndRunningLastTime == 0) && tmp == 1) && splverifierCounter == 0) && 0 <= pumpRunning - InvariantResult [Line: 142]: Loop Invariant Derived loop invariant: ((((pumpRunning <= 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && tmp == 1) && 0 <= pumpRunning) && !(0 == systemActive) - InvariantResult [Line: 766]: Loop Invariant Derived loop invariant: ((!(\old(methAndRunningLastTime) == 0) || !(\old(pumpRunning) <= 0)) || !(0 <= \old(pumpRunning))) || ((pumpRunning <= 0 && methAndRunningLastTime == 0) && 0 <= pumpRunning) - InvariantResult [Line: 660]: Loop Invariant Derived loop invariant: ((((!(\old(methAndRunningLastTime) == 0) || !(\old(pumpRunning) <= 0)) || tmp == 0) || !(methaneLevelCritical == 0)) || !(0 <= \old(pumpRunning))) && (((!(\old(methAndRunningLastTime) == 0) || !(\old(pumpRunning) <= 0)) || !(0 <= \old(pumpRunning))) || ((pumpRunning <= 0 && methAndRunningLastTime == 0) && 0 <= pumpRunning)) RESULT: Ultimate proved your program to be correct! [2022-12-14 14:10:21,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed10c5ea-0c27-40f9-b747-86586966ec85/bin/utaipan-gh47qXpMRh/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