./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product15.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51637a8-29aa-434b-ac5d-e3dea7024323/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51637a8-29aa-434b-ac5d-e3dea7024323/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51637a8-29aa-434b-ac5d-e3dea7024323/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51637a8-29aa-434b-ac5d-e3dea7024323/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product15.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51637a8-29aa-434b-ac5d-e3dea7024323/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51637a8-29aa-434b-ac5d-e3dea7024323/bin/uautomizer-tPACEb0tL8 --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3ff5e3440a113d04736761f02383989df8ff41baa6c3f7c82a502839a05f4fda --- 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-e04fb08 [2022-11-16 11:40:56,056 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:40:56,059 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:40:56,109 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:40:56,110 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:40:56,111 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:40:56,113 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:40:56,121 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:40:56,129 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:40:56,132 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:40:56,133 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:40:56,135 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:40:56,135 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:40:56,137 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:40:56,139 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:40:56,141 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:40:56,142 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:40:56,146 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:40:56,150 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:40:56,160 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:40:56,166 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:40:56,171 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:40:56,173 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:40:56,174 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:40:56,178 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:40:56,184 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:40:56,184 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:40:56,187 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:40:56,188 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:40:56,189 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:40:56,190 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:40:56,191 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:40:56,194 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:40:56,196 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:40:56,199 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:40:56,199 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:40:56,202 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:40:56,203 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:40:56,204 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:40:56,205 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:40:56,206 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:40:56,208 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51637a8-29aa-434b-ac5d-e3dea7024323/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 11:40:56,260 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:40:56,260 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:40:56,261 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:40:56,261 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:40:56,262 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:40:56,263 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:40:56,264 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:40:56,264 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:40:56,264 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:40:56,265 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:40:56,266 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:40:56,266 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:40:56,267 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:40:56,267 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:40:56,267 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:40:56,268 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:40:56,268 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:40:56,268 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:40:56,268 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:40:56,269 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:40:56,269 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:40:56,269 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:40:56,270 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:40:56,270 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:40:56,270 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:40:56,271 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:40:56,273 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:40:56,273 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:40:56,273 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:40:56,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:40:56,274 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:40:56,274 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:40:56,275 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:40:56,275 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_c51637a8-29aa-434b-ac5d-e3dea7024323/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51637a8-29aa-434b-ac5d-e3dea7024323/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3ff5e3440a113d04736761f02383989df8ff41baa6c3f7c82a502839a05f4fda [2022-11-16 11:40:56,701 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:40:56,749 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:40:56,753 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:40:56,754 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:40:56,756 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:40:56,757 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51637a8-29aa-434b-ac5d-e3dea7024323/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/product-lines/minepump_spec4_product15.cil.c [2022-11-16 11:40:56,833 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51637a8-29aa-434b-ac5d-e3dea7024323/bin/uautomizer-tPACEb0tL8/data/80605c5ac/17e41083f76a4a1e9e262de490b539bf/FLAGc97e1a0aa [2022-11-16 11:40:57,527 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:40:57,528 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51637a8-29aa-434b-ac5d-e3dea7024323/sv-benchmarks/c/product-lines/minepump_spec4_product15.cil.c [2022-11-16 11:40:57,545 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51637a8-29aa-434b-ac5d-e3dea7024323/bin/uautomizer-tPACEb0tL8/data/80605c5ac/17e41083f76a4a1e9e262de490b539bf/FLAGc97e1a0aa [2022-11-16 11:40:57,756 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51637a8-29aa-434b-ac5d-e3dea7024323/bin/uautomizer-tPACEb0tL8/data/80605c5ac/17e41083f76a4a1e9e262de490b539bf [2022-11-16 11:40:57,759 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:40:57,762 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:40:57,766 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:40:57,766 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:40:57,771 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:40:57,772 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:40:57" (1/1) ... [2022-11-16 11:40:57,774 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c50ea83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:57, skipping insertion in model container [2022-11-16 11:40:57,774 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:40:57" (1/1) ... [2022-11-16 11:40:57,785 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:40:57,851 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:40:58,225 WARN L229 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_c51637a8-29aa-434b-ac5d-e3dea7024323/sv-benchmarks/c/product-lines/minepump_spec4_product15.cil.c[2141,2154] [2022-11-16 11:40:58,423 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:40:58,435 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:40:58,454 WARN L229 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_c51637a8-29aa-434b-ac5d-e3dea7024323/sv-benchmarks/c/product-lines/minepump_spec4_product15.cil.c[2141,2154] [2022-11-16 11:40:58,518 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:40:58,540 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:40:58,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:58 WrapperNode [2022-11-16 11:40:58,541 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:40:58,542 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:40:58,543 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:40:58,543 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:40:58,557 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:58" (1/1) ... [2022-11-16 11:40:58,577 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:58" (1/1) ... [2022-11-16 11:40:58,637 INFO L138 Inliner]: procedures = 52, calls = 152, calls flagged for inlining = 20, calls inlined = 16, statements flattened = 216 [2022-11-16 11:40:58,638 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:40:58,638 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:40:58,639 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:40:58,639 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:40:58,656 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:58" (1/1) ... [2022-11-16 11:40:58,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:58" (1/1) ... [2022-11-16 11:40:58,670 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:58" (1/1) ... [2022-11-16 11:40:58,683 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:58" (1/1) ... [2022-11-16 11:40:58,689 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:58" (1/1) ... [2022-11-16 11:40:58,694 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:58" (1/1) ... [2022-11-16 11:40:58,696 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:58" (1/1) ... [2022-11-16 11:40:58,697 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:58" (1/1) ... [2022-11-16 11:40:58,716 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:40:58,717 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:40:58,718 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:40:58,718 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:40:58,719 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:58" (1/1) ... [2022-11-16 11:40:58,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:40:58,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51637a8-29aa-434b-ac5d-e3dea7024323/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:40:58,785 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51637a8-29aa-434b-ac5d-e3dea7024323/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:40:58,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51637a8-29aa-434b-ac5d-e3dea7024323/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:40:58,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:40:58,838 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-16 11:40:58,838 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-16 11:40:58,838 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-16 11:40:58,839 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-16 11:40:58,839 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-16 11:40:58,839 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-16 11:40:58,839 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-11-16 11:40:58,840 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-11-16 11:40:58,840 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-11-16 11:40:58,840 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-11-16 11:40:58,840 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-11-16 11:40:58,841 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-11-16 11:40:58,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:40:58,841 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-16 11:40:58,841 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-16 11:40:58,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:40:58,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:40:58,933 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:40:58,936 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:40:59,354 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:40:59,362 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:40:59,362 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-16 11:40:59,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:40:59 BoogieIcfgContainer [2022-11-16 11:40:59,365 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:40:59,368 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:40:59,368 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:40:59,375 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:40:59,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:40:57" (1/3) ... [2022-11-16 11:40:59,391 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71e55994 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:40:59, skipping insertion in model container [2022-11-16 11:40:59,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:58" (2/3) ... [2022-11-16 11:40:59,392 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71e55994 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:40:59, skipping insertion in model container [2022-11-16 11:40:59,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:40:59" (3/3) ... [2022-11-16 11:40:59,393 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product15.cil.c [2022-11-16 11:40:59,415 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:40:59,415 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 11:40:59,508 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:40:59,522 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=PETRI_NET, 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;@62c6aa5b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:40:59,522 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 11:40:59,528 INFO L276 IsEmpty]: Start isEmpty. Operand has 78 states, 58 states have (on average 1.3793103448275863) internal successors, (80), 65 states have internal predecessors, (80), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-16 11:40:59,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-16 11:40:59,542 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:40:59,543 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:40:59,545 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:40:59,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:40:59,553 INFO L85 PathProgramCache]: Analyzing trace with hash -2002568319, now seen corresponding path program 1 times [2022-11-16 11:40:59,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:40:59,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257345771] [2022-11-16 11:40:59,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:40:59,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:40:59,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:40:59,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:40:59,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:40:59,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257345771] [2022-11-16 11:40:59,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257345771] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:40:59,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:40:59,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:40:59,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582294601] [2022-11-16 11:40:59,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:40:59,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 11:40:59,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:40:59,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 11:40:59,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:40:59,966 INFO L87 Difference]: Start difference. First operand has 78 states, 58 states have (on average 1.3793103448275863) internal successors, (80), 65 states have internal predecessors, (80), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:00,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:41:00,003 INFO L93 Difference]: Finished difference Result 148 states and 199 transitions. [2022-11-16 11:41:00,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 11:41:00,005 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-16 11:41:00,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:41:00,016 INFO L225 Difference]: With dead ends: 148 [2022-11-16 11:41:00,016 INFO L226 Difference]: Without dead ends: 69 [2022-11-16 11:41:00,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:41:00,024 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:41:00,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:41:00,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-11-16 11:41:00,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2022-11-16 11:41:00,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 51 states have (on average 1.2941176470588236) internal successors, (66), 57 states have internal predecessors, (66), 11 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-16 11:41:00,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 87 transitions. [2022-11-16 11:41:00,093 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 87 transitions. Word has length 19 [2022-11-16 11:41:00,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:41:00,095 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 87 transitions. [2022-11-16 11:41:00,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:00,096 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 87 transitions. [2022-11-16 11:41:00,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-16 11:41:00,098 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:41:00,099 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:41:00,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:41:00,099 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:41:00,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:41:00,100 INFO L85 PathProgramCache]: Analyzing trace with hash 999716962, now seen corresponding path program 1 times [2022-11-16 11:41:00,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:41:00,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946355965] [2022-11-16 11:41:00,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:41:00,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:41:00,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:41:00,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:41:00,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:41:00,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946355965] [2022-11-16 11:41:00,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946355965] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:41:00,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:41:00,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:41:00,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551663661] [2022-11-16 11:41:00,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:41:00,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:41:00,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:41:00,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:41:00,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:41:00,320 INFO L87 Difference]: Start difference. First operand 69 states and 87 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:00,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:41:00,357 INFO L93 Difference]: Finished difference Result 100 states and 124 transitions. [2022-11-16 11:41:00,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:41:00,358 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-16 11:41:00,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:41:00,364 INFO L225 Difference]: With dead ends: 100 [2022-11-16 11:41:00,366 INFO L226 Difference]: Without dead ends: 60 [2022-11-16 11:41:00,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:41:00,369 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 16 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:41:00,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 127 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:41:00,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-11-16 11:41:00,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2022-11-16 11:41:00,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 45 states have (on average 1.3111111111111111) internal successors, (59), 51 states have internal predecessors, (59), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-16 11:41:00,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 75 transitions. [2022-11-16 11:41:00,395 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 75 transitions. Word has length 20 [2022-11-16 11:41:00,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:41:00,396 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 75 transitions. [2022-11-16 11:41:00,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:00,396 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 75 transitions. [2022-11-16 11:41:00,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 11:41:00,398 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:41:00,398 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] [2022-11-16 11:41:00,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:41:00,399 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:41:00,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:41:00,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1281821319, now seen corresponding path program 1 times [2022-11-16 11:41:00,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:41:00,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063882118] [2022-11-16 11:41:00,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:41:00,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:41:00,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:41:00,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:41:00,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:41:00,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063882118] [2022-11-16 11:41:00,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063882118] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:41:00,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:41:00,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:41:00,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621784761] [2022-11-16 11:41:00,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:41:00,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:41:00,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:41:00,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:41:00,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:41:00,501 INFO L87 Difference]: Start difference. First operand 60 states and 75 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:00,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:41:00,531 INFO L93 Difference]: Finished difference Result 165 states and 211 transitions. [2022-11-16 11:41:00,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:41:00,532 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 11:41:00,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:41:00,534 INFO L225 Difference]: With dead ends: 165 [2022-11-16 11:41:00,534 INFO L226 Difference]: Without dead ends: 112 [2022-11-16 11:41:00,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:41:00,537 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 55 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:41:00,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 157 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:41:00,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2022-11-16 11:41:00,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 109. [2022-11-16 11:41:00,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 80 states have (on average 1.3375) internal successors, (107), 91 states have internal predecessors, (107), 16 states have call successors, (16), 12 states have call predecessors, (16), 12 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-16 11:41:00,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 139 transitions. [2022-11-16 11:41:00,562 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 139 transitions. Word has length 24 [2022-11-16 11:41:00,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:41:00,562 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 139 transitions. [2022-11-16 11:41:00,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:00,563 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 139 transitions. [2022-11-16 11:41:00,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-16 11:41:00,564 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:41:00,564 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:41:00,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:41:00,565 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:41:00,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:41:00,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1956762765, now seen corresponding path program 1 times [2022-11-16 11:41:00,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:41:00,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742220641] [2022-11-16 11:41:00,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:41:00,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:41:00,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:41:00,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-16 11:41:00,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:41:00,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:41:00,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:41:00,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742220641] [2022-11-16 11:41:00,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742220641] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:41:00,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:41:00,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:41:00,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745738336] [2022-11-16 11:41:00,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:41:00,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:41:00,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:41:00,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:41:00,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:41:00,745 INFO L87 Difference]: Start difference. First operand 109 states and 139 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:41:00,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:41:00,875 INFO L93 Difference]: Finished difference Result 301 states and 398 transitions. [2022-11-16 11:41:00,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:41:00,876 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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 29 [2022-11-16 11:41:00,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:41:00,880 INFO L225 Difference]: With dead ends: 301 [2022-11-16 11:41:00,880 INFO L226 Difference]: Without dead ends: 199 [2022-11-16 11:41:00,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:41:00,883 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 48 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:41:00,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 299 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:41:00,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2022-11-16 11:41:00,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2022-11-16 11:41:00,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 144 states have (on average 1.3194444444444444) internal successors, (190), 163 states have internal predecessors, (190), 32 states have call successors, (32), 24 states have call predecessors, (32), 22 states have return successors, (34), 20 states have call predecessors, (34), 32 states have call successors, (34) [2022-11-16 11:41:00,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 256 transitions. [2022-11-16 11:41:00,923 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 256 transitions. Word has length 29 [2022-11-16 11:41:00,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:41:00,923 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 256 transitions. [2022-11-16 11:41:00,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:41:00,924 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 256 transitions. [2022-11-16 11:41:00,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-16 11:41:00,926 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:41:00,926 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:41:00,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:41:00,927 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:41:00,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:41:00,928 INFO L85 PathProgramCache]: Analyzing trace with hash 2058553646, now seen corresponding path program 1 times [2022-11-16 11:41:00,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:41:00,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169843621] [2022-11-16 11:41:00,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:41:00,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:41:00,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:41:01,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:41:01,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:41:01,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:41:01,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:41:01,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169843621] [2022-11-16 11:41:01,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169843621] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:41:01,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:41:01,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:41:01,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395091997] [2022-11-16 11:41:01,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:41:01,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:41:01,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:41:01,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:41:01,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:41:01,087 INFO L87 Difference]: Start difference. First operand 199 states and 256 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:41:01,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:41:01,141 INFO L93 Difference]: Finished difference Result 333 states and 437 transitions. [2022-11-16 11:41:01,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:41:01,142 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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 31 [2022-11-16 11:41:01,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:41:01,144 INFO L225 Difference]: With dead ends: 333 [2022-11-16 11:41:01,144 INFO L226 Difference]: Without dead ends: 141 [2022-11-16 11:41:01,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:41:01,147 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 37 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:41:01,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 49 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:41:01,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2022-11-16 11:41:01,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 139. [2022-11-16 11:41:01,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 108 states have (on average 1.2592592592592593) internal successors, (136), 115 states have internal predecessors, (136), 16 states have call successors, (16), 16 states have call predecessors, (16), 14 states have return successors, (16), 14 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-16 11:41:01,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 168 transitions. [2022-11-16 11:41:01,172 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 168 transitions. Word has length 31 [2022-11-16 11:41:01,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:41:01,172 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 168 transitions. [2022-11-16 11:41:01,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:41:01,173 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 168 transitions. [2022-11-16 11:41:01,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:41:01,174 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:41:01,175 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:41:01,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:41:01,175 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:41:01,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:41:01,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1598576531, now seen corresponding path program 1 times [2022-11-16 11:41:01,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:41:01,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790407334] [2022-11-16 11:41:01,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:41:01,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:41:01,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:41:01,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:41:01,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:41:01,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-16 11:41:01,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:41:01,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:41:01,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:41:01,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790407334] [2022-11-16 11:41:01,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790407334] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:41:01,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:41:01,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:41:01,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366499750] [2022-11-16 11:41:01,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:41:01,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:41:01,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:41:01,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:41:01,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:41:01,346 INFO L87 Difference]: Start difference. First operand 139 states and 168 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 11:41:01,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:41:01,533 INFO L93 Difference]: Finished difference Result 149 states and 178 transitions. [2022-11-16 11:41:01,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:41:01,560 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (3), 3 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 33 [2022-11-16 11:41:01,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:41:01,560 INFO L225 Difference]: With dead ends: 149 [2022-11-16 11:41:01,560 INFO L226 Difference]: Without dead ends: 0 [2022-11-16 11:41:01,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:41:01,563 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 50 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:41:01,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 143 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:41:01,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-16 11:41:01,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-16 11:41:01,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:01,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-16 11:41:01,565 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2022-11-16 11:41:01,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:41:01,566 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 11:41:01,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 11:41:01,566 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-16 11:41:01,567 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-16 11:41:01,570 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 11:41:01,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:41:01,573 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-16 11:41:02,265 INFO L902 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 262 269) the Hoare annotation is: true [2022-11-16 11:41:02,266 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 262 269) no Hoare annotation was computed. [2022-11-16 11:41:02,266 INFO L899 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 262 269) no Hoare annotation was computed. [2022-11-16 11:41:02,266 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 735 746) the Hoare annotation is: true [2022-11-16 11:41:02,266 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 735 746) no Hoare annotation was computed. [2022-11-16 11:41:02,267 INFO L899 garLoopResultBuilder]: For program point L739-1(lines 735 746) no Hoare annotation was computed. [2022-11-16 11:41:02,267 INFO L899 garLoopResultBuilder]: For program point L801(line 801) no Hoare annotation was computed. [2022-11-16 11:41:02,267 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 790 819) no Hoare annotation was computed. [2022-11-16 11:41:02,267 INFO L902 garLoopResultBuilder]: At program point L800-2(lines 800 814) the Hoare annotation is: true [2022-11-16 11:41:02,267 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 790 819) the Hoare annotation is: true [2022-11-16 11:41:02,268 INFO L902 garLoopResultBuilder]: At program point L796(line 796) the Hoare annotation is: true [2022-11-16 11:41:02,268 INFO L899 garLoopResultBuilder]: For program point L796-1(line 796) no Hoare annotation was computed. [2022-11-16 11:41:02,268 INFO L902 garLoopResultBuilder]: At program point L815(lines 790 819) the Hoare annotation is: true [2022-11-16 11:41:02,268 INFO L899 garLoopResultBuilder]: For program point L811(line 811) no Hoare annotation was computed. [2022-11-16 11:41:02,268 INFO L899 garLoopResultBuilder]: For program point L804(lines 804 808) no Hoare annotation was computed. [2022-11-16 11:41:02,269 INFO L902 garLoopResultBuilder]: At program point L804-1(lines 804 808) the Hoare annotation is: true [2022-11-16 11:41:02,269 INFO L895 garLoopResultBuilder]: At program point L93(lines 88 95) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-11-16 11:41:02,269 INFO L899 garLoopResultBuilder]: For program point L184-1(lines 183 202) no Hoare annotation was computed. [2022-11-16 11:41:02,269 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 180 203) no Hoare annotation was computed. [2022-11-16 11:41:02,270 INFO L895 garLoopResultBuilder]: At program point L226(line 226) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-11-16 11:41:02,270 INFO L895 garLoopResultBuilder]: At program point L222(line 222) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-11-16 11:41:02,270 INFO L895 garLoopResultBuilder]: At program point L218(line 218) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-11-16 11:41:02,270 INFO L899 garLoopResultBuilder]: For program point L218-1(line 218) no Hoare annotation was computed. [2022-11-16 11:41:02,271 INFO L895 garLoopResultBuilder]: At program point L784(lines 779 787) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (= |timeShift_getWaterLevel_#res#1| 1)))) [2022-11-16 11:41:02,271 INFO L895 garLoopResultBuilder]: At program point L231(line 231) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) [2022-11-16 11:41:02,271 INFO L895 garLoopResultBuilder]: At program point L231-1(lines 212 236) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) [2022-11-16 11:41:02,271 INFO L899 garLoopResultBuilder]: For program point L715(lines 715 719) no Hoare annotation was computed. [2022-11-16 11:41:02,272 INFO L895 garLoopResultBuilder]: At program point L715-2(lines 711 722) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-11-16 11:41:02,272 INFO L899 garLoopResultBuilder]: For program point L897(lines 897 903) no Hoare annotation was computed. [2022-11-16 11:41:02,272 INFO L899 garLoopResultBuilder]: For program point L191-1(lines 191 197) no Hoare annotation was computed. [2022-11-16 11:41:02,273 INFO L895 garLoopResultBuilder]: At program point L286(lines 281 289) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (and (= ~pumpRunning~0 0) (= |timeShift_isPumpRunning_#res#1| 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 (not (= |old(~waterLevel~0)| 1))))) [2022-11-16 11:41:02,273 INFO L899 garLoopResultBuilder]: For program point L893(lines 893 906) no Hoare annotation was computed. [2022-11-16 11:41:02,273 INFO L899 garLoopResultBuilder]: For program point L220(lines 220 228) no Hoare annotation was computed. [2022-11-16 11:41:02,273 INFO L899 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2022-11-16 11:41:02,273 INFO L895 garLoopResultBuilder]: At program point L893-1(lines 885 909) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and (= |timeShift___utac_acc__Specification4_spec__1_~tmp~7#1| 1) (= |timeShift_getWaterLevel_#res#1| 1))))) [2022-11-16 11:41:02,274 INFO L899 garLoopResultBuilder]: For program point L216(lines 216 233) no Hoare annotation was computed. [2022-11-16 11:41:02,274 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 180 203) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) [2022-11-16 11:41:02,274 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 180 203) no Hoare annotation was computed. [2022-11-16 11:41:02,274 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 92) no Hoare annotation was computed. [2022-11-16 11:41:02,275 INFO L899 garLoopResultBuilder]: For program point L122(lines 122 128) no Hoare annotation was computed. [2022-11-16 11:41:02,275 INFO L899 garLoopResultBuilder]: For program point L122-1(lines 122 128) no Hoare annotation was computed. [2022-11-16 11:41:02,275 INFO L899 garLoopResultBuilder]: For program point L114(lines 114 118) no Hoare annotation was computed. [2022-11-16 11:41:02,275 INFO L895 garLoopResultBuilder]: At program point L160(lines 111 161) the Hoare annotation is: false [2022-11-16 11:41:02,275 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-16 11:41:02,276 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-16 11:41:02,276 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-16 11:41:02,276 INFO L902 garLoopResultBuilder]: At program point L858(lines 851 860) the Hoare annotation is: true [2022-11-16 11:41:02,276 INFO L899 garLoopResultBuilder]: For program point L148(lines 148 154) no Hoare annotation was computed. [2022-11-16 11:41:02,277 INFO L895 garLoopResultBuilder]: At program point L338(lines 326 340) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-16 11:41:02,277 INFO L895 garLoopResultBuilder]: At program point L148-2(lines 142 155) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-16 11:41:02,277 INFO L899 garLoopResultBuilder]: For program point L330(lines 330 336) no Hoare annotation was computed. [2022-11-16 11:41:02,277 INFO L899 garLoopResultBuilder]: For program point L330-1(lines 330 336) no Hoare annotation was computed. [2022-11-16 11:41:02,278 INFO L899 garLoopResultBuilder]: For program point L871(lines 871 878) no Hoare annotation was computed. [2022-11-16 11:41:02,278 INFO L899 garLoopResultBuilder]: For program point L871-2(lines 871 878) no Hoare annotation was computed. [2022-11-16 11:41:02,278 INFO L899 garLoopResultBuilder]: For program point L132(lines 132 138) no Hoare annotation was computed. [2022-11-16 11:41:02,278 INFO L899 garLoopResultBuilder]: For program point L132-1(lines 132 138) no Hoare annotation was computed. [2022-11-16 11:41:02,278 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-16 11:41:02,279 INFO L895 garLoopResultBuilder]: At program point L157(lines 112 159) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-16 11:41:02,279 INFO L895 garLoopResultBuilder]: At program point L124(line 124) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-16 11:41:02,279 INFO L895 garLoopResultBuilder]: At program point L83(lines 78 86) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-16 11:41:02,280 INFO L902 garLoopResultBuilder]: At program point L880(lines 861 883) the Hoare annotation is: true [2022-11-16 11:41:02,280 INFO L895 garLoopResultBuilder]: At program point L75(lines 71 77) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-16 11:41:02,280 INFO L899 garLoopResultBuilder]: For program point L113(lines 112 159) no Hoare annotation was computed. [2022-11-16 11:41:02,280 INFO L895 garLoopResultBuilder]: At program point L848(lines 844 850) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-16 11:41:02,281 INFO L899 garLoopResultBuilder]: For program point L142(lines 142 155) no Hoare annotation was computed. [2022-11-16 11:41:02,281 INFO L895 garLoopResultBuilder]: At program point L332(line 332) the Hoare annotation is: false [2022-11-16 11:41:02,281 INFO L895 garLoopResultBuilder]: At program point L134(line 134) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-16 11:41:02,281 INFO L895 garLoopResultBuilder]: At program point L68(lines 64 70) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-16 11:41:02,282 INFO L902 garLoopResultBuilder]: At program point L163(lines 102 167) the Hoare annotation is: true [2022-11-16 11:41:02,282 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 723 734) no Hoare annotation was computed. [2022-11-16 11:41:02,282 INFO L899 garLoopResultBuilder]: For program point L727-1(lines 723 734) no Hoare annotation was computed. [2022-11-16 11:41:02,282 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 723 734) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (= |old(~waterLevel~0)| ~waterLevel~0)) [2022-11-16 11:41:02,283 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 204 210) no Hoare annotation was computed. [2022-11-16 11:41:02,283 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryFINAL(lines 204 210) the Hoare annotation is: true [2022-11-16 11:41:02,283 INFO L902 garLoopResultBuilder]: At program point L752(lines 747 755) the Hoare annotation is: true [2022-11-16 11:41:02,283 INFO L902 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 270 280) the Hoare annotation is: true [2022-11-16 11:41:02,284 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 270 280) no Hoare annotation was computed. [2022-11-16 11:41:02,284 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmFINAL(lines 270 280) no Hoare annotation was computed. [2022-11-16 11:41:02,288 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-16 11:41:02,291 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 11:41:02,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:41:02 BoogieIcfgContainer [2022-11-16 11:41:02,330 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 11:41:02,331 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:41:02,331 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:41:02,331 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:41:02,332 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:40:59" (3/4) ... [2022-11-16 11:41:02,335 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 11:41:02,345 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-11-16 11:41:02,345 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-16 11:41:02,345 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-16 11:41:02,345 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-16 11:41:02,346 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-16 11:41:02,346 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2022-11-16 11:41:02,347 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2022-11-16 11:41:02,364 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 48 nodes and edges [2022-11-16 11:41:02,365 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-11-16 11:41:02,366 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-16 11:41:02,366 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-16 11:41:02,367 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 11:41:02,367 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 11:41:02,368 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 11:41:02,406 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-11-16 11:41:02,408 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel) [2022-11-16 11:41:02,411 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || \result == 1) [2022-11-16 11:41:02,411 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (tmp == 1 && \result == 1)) [2022-11-16 11:41:02,412 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel)) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) [2022-11-16 11:41:02,412 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-11-16 11:41:02,460 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51637a8-29aa-434b-ac5d-e3dea7024323/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 11:41:02,461 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:41:02,462 INFO L158 Benchmark]: Toolchain (without parser) took 4699.49ms. Allocated memory was 79.7MB in the beginning and 157.3MB in the end (delta: 77.6MB). Free memory was 42.0MB in the beginning and 96.6MB in the end (delta: -54.6MB). Peak memory consumption was 23.0MB. Max. memory is 16.1GB. [2022-11-16 11:41:02,463 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 79.7MB. Free memory was 59.1MB in the beginning and 59.0MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:41:02,464 INFO L158 Benchmark]: CACSL2BoogieTranslator took 775.18ms. Allocated memory was 79.7MB in the beginning and 117.4MB in the end (delta: 37.7MB). Free memory was 41.8MB in the beginning and 86.8MB in the end (delta: -45.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 11:41:02,464 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.48ms. Allocated memory is still 117.4MB. Free memory was 86.8MB in the beginning and 84.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:41:02,467 INFO L158 Benchmark]: Boogie Preprocessor took 78.16ms. Allocated memory is still 117.4MB. Free memory was 84.7MB in the beginning and 83.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:41:02,468 INFO L158 Benchmark]: RCFGBuilder took 648.12ms. Allocated memory is still 117.4MB. Free memory was 83.2MB in the beginning and 65.8MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-16 11:41:02,469 INFO L158 Benchmark]: TraceAbstraction took 2961.79ms. Allocated memory was 117.4MB in the beginning and 157.3MB in the end (delta: 39.8MB). Free memory was 65.3MB in the beginning and 101.9MB in the end (delta: -36.6MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. [2022-11-16 11:41:02,470 INFO L158 Benchmark]: Witness Printer took 130.47ms. Allocated memory is still 157.3MB. Free memory was 101.9MB in the beginning and 96.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 11:41:02,472 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 79.7MB. Free memory was 59.1MB in the beginning and 59.0MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 775.18ms. Allocated memory was 79.7MB in the beginning and 117.4MB in the end (delta: 37.7MB). Free memory was 41.8MB in the beginning and 86.8MB in the end (delta: -45.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 95.48ms. Allocated memory is still 117.4MB. Free memory was 86.8MB in the beginning and 84.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 78.16ms. Allocated memory is still 117.4MB. Free memory was 84.7MB in the beginning and 83.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 648.12ms. Allocated memory is still 117.4MB. Free memory was 83.2MB in the beginning and 65.8MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2961.79ms. Allocated memory was 117.4MB in the beginning and 157.3MB in the end (delta: 39.8MB). Free memory was 65.3MB in the beginning and 101.9MB in the end (delta: -36.6MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. * Witness Printer took 130.47ms. Allocated memory is still 157.3MB. Free memory was 101.9MB in the beginning and 96.6MB 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: 92]: 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, 78 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.8s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 211 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 206 mSDsluCounter, 871 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 440 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 75 IncrementalHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 431 mSDtfsCounter, 75 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=199occurred in iteration=4, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 36 LocationsWithAnnotation, 281 PreInvPairs, 323 NumberOfFragments, 233 HoareAnnotationTreeSize, 281 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 36 FomulaSimplificationsInter, 863 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 156 NumberOfCodeBlocks, 156 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 150 ConstructedInterpolants, 0 QuantifiedInterpolants, 320 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 326]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 861]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 102]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 885]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (tmp == 1 && \result == 1)) - InvariantResult [Line: 790]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 779]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || \result == 1) - InvariantResult [Line: 747]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 112]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 111]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 851]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 71]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 844]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 212]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel) - InvariantResult [Line: 281]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel)) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) - InvariantResult [Line: 800]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 711]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 88]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) RESULT: Ultimate proved your program to be correct! [2022-11-16 11:41:02,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51637a8-29aa-434b-ac5d-e3dea7024323/bin/uautomizer-tPACEb0tL8/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