./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product46.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_341f0d50-08c3-4527-bc36-ed45348d5c48/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_341f0d50-08c3-4527-bc36-ed45348d5c48/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_341f0d50-08c3-4527-bc36-ed45348d5c48/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_341f0d50-08c3-4527-bc36-ed45348d5c48/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product46.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_341f0d50-08c3-4527-bc36-ed45348d5c48/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_341f0d50-08c3-4527-bc36-ed45348d5c48/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --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 02fb1fa00f2030f7900be70496baf2f4c44344da378fa11ef09f1f26dc14ae9d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 08:03:16,482 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 08:03:16,556 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_341f0d50-08c3-4527-bc36-ed45348d5c48/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 08:03:16,562 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 08:03:16,562 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 08:03:16,588 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 08:03:16,589 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 08:03:16,589 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 08:03:16,589 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 08:03:16,589 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 08:03:16,590 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 08:03:16,590 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 08:03:16,590 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 08:03:16,590 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 08:03:16,590 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 08:03:16,590 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 08:03:16,591 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 08:03:16,591 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 08:03:16,591 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 08:03:16,591 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 08:03:16,591 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 08:03:16,591 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 08:03:16,591 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 08:03:16,591 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 08:03:16,591 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 08:03:16,591 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 08:03:16,591 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 08:03:16,592 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 08:03:16,592 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 08:03:16,592 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:03:16,592 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:03:16,592 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:03:16,592 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:03:16,592 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 08:03:16,592 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:03:16,592 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:03:16,592 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:03:16,593 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:03:16,593 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 08:03:16,593 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 08:03:16,593 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 08:03:16,593 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 08:03:16,593 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 08:03:16,593 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 08:03:16,593 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 08:03:16,593 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 08:03:16,594 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 08:03:16,594 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 08:03:16,594 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_341f0d50-08c3-4527-bc36-ed45348d5c48/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness 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 -> 02fb1fa00f2030f7900be70496baf2f4c44344da378fa11ef09f1f26dc14ae9d [2024-12-02 08:03:16,903 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 08:03:16,915 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 08:03:16,918 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 08:03:16,919 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 08:03:16,919 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 08:03:16,920 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_341f0d50-08c3-4527-bc36-ed45348d5c48/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/product-lines/minepump_spec2_product46.cil.c [2024-12-02 08:03:20,355 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_341f0d50-08c3-4527-bc36-ed45348d5c48/bin/uautomizer-verify-84ZbGMXZE1/data/fbab9fcde/d94932f569104cdebc09e9a82a414bd2/FLAG77f684634 [2024-12-02 08:03:20,618 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 08:03:20,618 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_341f0d50-08c3-4527-bc36-ed45348d5c48/sv-benchmarks/c/product-lines/minepump_spec2_product46.cil.c [2024-12-02 08:03:20,634 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_341f0d50-08c3-4527-bc36-ed45348d5c48/bin/uautomizer-verify-84ZbGMXZE1/data/fbab9fcde/d94932f569104cdebc09e9a82a414bd2/FLAG77f684634 [2024-12-02 08:03:20,653 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_341f0d50-08c3-4527-bc36-ed45348d5c48/bin/uautomizer-verify-84ZbGMXZE1/data/fbab9fcde/d94932f569104cdebc09e9a82a414bd2 [2024-12-02 08:03:20,656 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 08:03:20,658 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 08:03:20,660 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 08:03:20,660 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 08:03:20,665 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 08:03:20,666 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:03:20" (1/1) ... [2024-12-02 08:03:20,667 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60d91347 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:03:20, skipping insertion in model container [2024-12-02 08:03:20,668 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:03:20" (1/1) ... [2024-12-02 08:03:20,705 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 08:03:21,014 WARN L250 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_341f0d50-08c3-4527-bc36-ed45348d5c48/sv-benchmarks/c/product-lines/minepump_spec2_product46.cil.c[17174,17187] [2024-12-02 08:03:21,023 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:03:21,035 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 08:03:21,046 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2024-12-02 08:03:21,048 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [87] [2024-12-02 08:03:21,048 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [453] [2024-12-02 08:03:21,048 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [554] [2024-12-02 08:03:21,048 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [655] [2024-12-02 08:03:21,048 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [863] [2024-12-02 08:03:21,048 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [872] [2024-12-02 08:03:21,049 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [911] [2024-12-02 08:03:21,102 WARN L250 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_341f0d50-08c3-4527-bc36-ed45348d5c48/sv-benchmarks/c/product-lines/minepump_spec2_product46.cil.c[17174,17187] [2024-12-02 08:03:21,106 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:03:21,129 INFO L204 MainTranslator]: Completed translation [2024-12-02 08:03:21,130 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:03:21 WrapperNode [2024-12-02 08:03:21,130 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 08:03:21,132 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 08:03:21,132 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 08:03:21,132 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 08:03:21,140 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:03:21" (1/1) ... [2024-12-02 08:03:21,153 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:03:21" (1/1) ... [2024-12-02 08:03:21,178 INFO L138 Inliner]: procedures = 56, calls = 101, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 195 [2024-12-02 08:03:21,178 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 08:03:21,179 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 08:03:21,179 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 08:03:21,179 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 08:03:21,191 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:03:21" (1/1) ... [2024-12-02 08:03:21,191 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:03:21" (1/1) ... [2024-12-02 08:03:21,193 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:03:21" (1/1) ... [2024-12-02 08:03:21,209 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 08:03:21,210 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:03:21" (1/1) ... [2024-12-02 08:03:21,210 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:03:21" (1/1) ... [2024-12-02 08:03:21,215 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:03:21" (1/1) ... [2024-12-02 08:03:21,216 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:03:21" (1/1) ... [2024-12-02 08:03:21,220 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:03:21" (1/1) ... [2024-12-02 08:03:21,222 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:03:21" (1/1) ... [2024-12-02 08:03:21,223 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:03:21" (1/1) ... [2024-12-02 08:03:21,225 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 08:03:21,226 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 08:03:21,226 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 08:03:21,226 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 08:03:21,228 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:03:21" (1/1) ... [2024-12-02 08:03:21,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:03:21,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_341f0d50-08c3-4527-bc36-ed45348d5c48/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:03:21,267 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_341f0d50-08c3-4527-bc36-ed45348d5c48/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 08:03:21,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_341f0d50-08c3-4527-bc36-ed45348d5c48/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 08:03:21,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 08:03:21,304 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-12-02 08:03:21,304 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-12-02 08:03:21,304 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-12-02 08:03:21,304 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-12-02 08:03:21,304 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-12-02 08:03:21,304 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-12-02 08:03:21,305 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2024-12-02 08:03:21,305 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2024-12-02 08:03:21,305 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-12-02 08:03:21,305 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-12-02 08:03:21,305 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2024-12-02 08:03:21,305 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2024-12-02 08:03:21,305 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2024-12-02 08:03:21,305 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2024-12-02 08:03:21,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 08:03:21,305 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-12-02 08:03:21,305 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-12-02 08:03:21,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 08:03:21,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 08:03:21,395 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 08:03:21,398 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 08:03:21,692 INFO L? ?]: Removed 41 outVars from TransFormulas that were not future-live. [2024-12-02 08:03:21,692 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 08:03:21,707 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 08:03:21,707 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-12-02 08:03:21,707 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:03:21 BoogieIcfgContainer [2024-12-02 08:03:21,708 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 08:03:21,710 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 08:03:21,710 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 08:03:21,716 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 08:03:21,716 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:03:20" (1/3) ... [2024-12-02 08:03:21,717 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58f39d6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:03:21, skipping insertion in model container [2024-12-02 08:03:21,717 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:03:21" (2/3) ... [2024-12-02 08:03:21,717 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58f39d6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:03:21, skipping insertion in model container [2024-12-02 08:03:21,717 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:03:21" (3/3) ... [2024-12-02 08:03:21,719 INFO L128 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product46.cil.c [2024-12-02 08:03:21,738 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 08:03:21,740 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG minepump_spec2_product46.cil.c that has 9 procedures, 94 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-12-02 08:03:21,802 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 08:03:21,815 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@55026d0d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 08:03:21,815 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 08:03:21,820 INFO L276 IsEmpty]: Start isEmpty. Operand has 94 states, 70 states have (on average 1.3857142857142857) internal successors, (97), 78 states have internal predecessors, (97), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) [2024-12-02 08:03:21,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-12-02 08:03:21,828 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:03:21,828 INFO L218 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] [2024-12-02 08:03:21,829 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:03:21,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:03:21,834 INFO L85 PathProgramCache]: Analyzing trace with hash -291657962, now seen corresponding path program 1 times [2024-12-02 08:03:21,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:03:21,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048330794] [2024-12-02 08:03:21,842 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:03:21,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:03:21,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:03:22,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:03:22,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:03:22,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048330794] [2024-12-02 08:03:22,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048330794] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:03:22,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:03:22,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:03:22,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465133846] [2024-12-02 08:03:22,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:03:22,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:03:22,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:03:22,140 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:03:22,141 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:03:22,144 INFO L87 Difference]: Start difference. First operand has 94 states, 70 states have (on average 1.3857142857142857) internal successors, (97), 78 states have internal predecessors, (97), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 08:03:22,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:03:22,184 INFO L93 Difference]: Finished difference Result 167 states and 224 transitions. [2024-12-02 08:03:22,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:03:22,187 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-12-02 08:03:22,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:03:22,195 INFO L225 Difference]: With dead ends: 167 [2024-12-02 08:03:22,195 INFO L226 Difference]: Without dead ends: 77 [2024-12-02 08:03:22,199 INFO L434 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 [2024-12-02 08:03:22,203 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 13 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 188 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 [2024-12-02 08:03:22,204 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 188 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:03:22,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-12-02 08:03:22,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2024-12-02 08:03:22,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 58 states have (on average 1.3275862068965518) internal successors, (77), 65 states have internal predecessors, (77), 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) [2024-12-02 08:03:22,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 99 transitions. [2024-12-02 08:03:22,264 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 99 transitions. Word has length 25 [2024-12-02 08:03:22,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:03:22,264 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 99 transitions. [2024-12-02 08:03:22,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 08:03:22,265 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 99 transitions. [2024-12-02 08:03:22,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-02 08:03:22,267 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:03:22,267 INFO L218 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] [2024-12-02 08:03:22,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 08:03:22,267 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:03:22,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:03:22,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1464722378, now seen corresponding path program 1 times [2024-12-02 08:03:22,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:03:22,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273036960] [2024-12-02 08:03:22,269 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:03:22,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:03:22,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:03:22,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:03:22,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:03:22,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273036960] [2024-12-02 08:03:22,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273036960] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:03:22,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:03:22,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:03:22,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081194507] [2024-12-02 08:03:22,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:03:22,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:03:22,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:03:22,445 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:03:22,445 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:03:22,446 INFO L87 Difference]: Start difference. First operand 77 states and 99 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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) [2024-12-02 08:03:22,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:03:22,516 INFO L93 Difference]: Finished difference Result 146 states and 191 transitions. [2024-12-02 08:03:22,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:03:22,517 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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 30 [2024-12-02 08:03:22,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:03:22,518 INFO L225 Difference]: With dead ends: 146 [2024-12-02 08:03:22,518 INFO L226 Difference]: Without dead ends: 77 [2024-12-02 08:03:22,519 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:03:22,520 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 93 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:03:22,520 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 283 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:03:22,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-12-02 08:03:22,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2024-12-02 08:03:22,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 58 states have (on average 1.3103448275862069) internal successors, (76), 65 states have internal predecessors, (76), 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) [2024-12-02 08:03:22,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 98 transitions. [2024-12-02 08:03:22,534 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 98 transitions. Word has length 30 [2024-12-02 08:03:22,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:03:22,535 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 98 transitions. [2024-12-02 08:03:22,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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) [2024-12-02 08:03:22,535 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 98 transitions. [2024-12-02 08:03:22,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-12-02 08:03:22,537 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:03:22,537 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:03:22,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 08:03:22,537 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:03:22,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:03:22,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1292048163, now seen corresponding path program 1 times [2024-12-02 08:03:22,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:03:22,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111593015] [2024-12-02 08:03:22,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:03:22,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:03:22,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:03:22,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:03:22,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:03:22,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111593015] [2024-12-02 08:03:22,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111593015] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:03:22,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:03:22,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:03:22,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225577375] [2024-12-02 08:03:22,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:03:22,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:03:22,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:03:22,675 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:03:22,675 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:03:22,675 INFO L87 Difference]: Start difference. First operand 77 states and 98 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 08:03:22,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:03:22,986 INFO L93 Difference]: Finished difference Result 226 states and 288 transitions. [2024-12-02 08:03:22,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:03:22,987 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 40 [2024-12-02 08:03:22,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:03:22,989 INFO L225 Difference]: With dead ends: 226 [2024-12-02 08:03:22,989 INFO L226 Difference]: Without dead ends: 157 [2024-12-02 08:03:22,990 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:03:22,991 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 181 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:03:22,992 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 278 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:03:22,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2024-12-02 08:03:23,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 151. [2024-12-02 08:03:23,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 114 states have (on average 1.2719298245614035) internal successors, (145), 122 states have internal predecessors, (145), 18 states have call successors, (18), 15 states have call predecessors, (18), 18 states have return successors, (23), 19 states have call predecessors, (23), 18 states have call successors, (23) [2024-12-02 08:03:23,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 186 transitions. [2024-12-02 08:03:23,020 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 186 transitions. Word has length 40 [2024-12-02 08:03:23,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:03:23,021 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 186 transitions. [2024-12-02 08:03:23,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 08:03:23,021 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 186 transitions. [2024-12-02 08:03:23,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-12-02 08:03:23,023 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:03:23,023 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:03:23,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 08:03:23,023 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:03:23,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:03:23,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1558508075, now seen corresponding path program 1 times [2024-12-02 08:03:23,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:03:23,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145275249] [2024-12-02 08:03:23,024 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:03:23,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:03:23,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:03:23,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:03:23,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:03:23,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145275249] [2024-12-02 08:03:23,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145275249] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:03:23,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:03:23,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:03:23,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33037801] [2024-12-02 08:03:23,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:03:23,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:03:23,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:03:23,185 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:03:23,185 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:03:23,185 INFO L87 Difference]: Start difference. First operand 151 states and 186 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 08:03:23,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:03:23,490 INFO L93 Difference]: Finished difference Result 294 states and 364 transitions. [2024-12-02 08:03:23,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 08:03:23,491 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 46 [2024-12-02 08:03:23,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:03:23,493 INFO L225 Difference]: With dead ends: 294 [2024-12-02 08:03:23,493 INFO L226 Difference]: Without dead ends: 151 [2024-12-02 08:03:23,494 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:03:23,495 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 109 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:03:23,496 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 334 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:03:23,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-12-02 08:03:23,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 149. [2024-12-02 08:03:23,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 112 states have (on average 1.2410714285714286) internal successors, (139), 120 states have internal predecessors, (139), 18 states have call successors, (18), 15 states have call predecessors, (18), 18 states have return successors, (23), 19 states have call predecessors, (23), 18 states have call successors, (23) [2024-12-02 08:03:23,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 180 transitions. [2024-12-02 08:03:23,519 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 180 transitions. Word has length 46 [2024-12-02 08:03:23,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:03:23,519 INFO L471 AbstractCegarLoop]: Abstraction has 149 states and 180 transitions. [2024-12-02 08:03:23,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 08:03:23,520 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 180 transitions. [2024-12-02 08:03:23,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-12-02 08:03:23,521 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:03:23,522 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:03:23,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 08:03:23,522 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:03:23,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:03:23,523 INFO L85 PathProgramCache]: Analyzing trace with hash 582423636, now seen corresponding path program 1 times [2024-12-02 08:03:23,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:03:23,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641196753] [2024-12-02 08:03:23,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:03:23,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:03:23,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:03:23,621 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 08:03:23,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:03:23,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641196753] [2024-12-02 08:03:23,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641196753] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:03:23,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:03:23,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:03:23,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077242031] [2024-12-02 08:03:23,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:03:23,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:03:23,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:03:23,622 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:03:23,622 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:03:23,622 INFO L87 Difference]: Start difference. First operand 149 states and 180 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-12-02 08:03:23,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:03:23,654 INFO L93 Difference]: Finished difference Result 293 states and 362 transitions. [2024-12-02 08:03:23,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:03:23,655 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 56 [2024-12-02 08:03:23,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:03:23,657 INFO L225 Difference]: With dead ends: 293 [2024-12-02 08:03:23,657 INFO L226 Difference]: Without dead ends: 152 [2024-12-02 08:03:23,659 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:03:23,659 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 0 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:03:23,660 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 374 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:03:23,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-12-02 08:03:23,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2024-12-02 08:03:23,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 115 states have (on average 1.2347826086956522) internal successors, (142), 123 states have internal predecessors, (142), 18 states have call successors, (18), 15 states have call predecessors, (18), 18 states have return successors, (23), 19 states have call predecessors, (23), 18 states have call successors, (23) [2024-12-02 08:03:23,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 183 transitions. [2024-12-02 08:03:23,683 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 183 transitions. Word has length 56 [2024-12-02 08:03:23,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:03:23,683 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 183 transitions. [2024-12-02 08:03:23,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-12-02 08:03:23,684 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 183 transitions. [2024-12-02 08:03:23,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-12-02 08:03:23,685 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:03:23,686 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:03:23,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 08:03:23,686 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:03:23,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:03:23,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1284023510, now seen corresponding path program 1 times [2024-12-02 08:03:23,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:03:23,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472126088] [2024-12-02 08:03:23,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:03:23,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:03:23,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:03:23,793 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 08:03:23,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:03:23,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472126088] [2024-12-02 08:03:23,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472126088] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:03:23,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:03:23,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:03:23,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399729156] [2024-12-02 08:03:23,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:03:23,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:03:23,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:03:23,795 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:03:23,796 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:03:23,796 INFO L87 Difference]: Start difference. First operand 152 states and 183 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-12-02 08:03:23,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:03:23,834 INFO L93 Difference]: Finished difference Result 298 states and 367 transitions. [2024-12-02 08:03:23,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:03:23,835 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 56 [2024-12-02 08:03:23,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:03:23,837 INFO L225 Difference]: With dead ends: 298 [2024-12-02 08:03:23,837 INFO L226 Difference]: Without dead ends: 154 [2024-12-02 08:03:23,838 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:03:23,838 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 0 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:03:23,839 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 462 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:03:23,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2024-12-02 08:03:23,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2024-12-02 08:03:23,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 117 states have (on average 1.2307692307692308) internal successors, (144), 125 states have internal predecessors, (144), 18 states have call successors, (18), 15 states have call predecessors, (18), 18 states have return successors, (23), 19 states have call predecessors, (23), 18 states have call successors, (23) [2024-12-02 08:03:23,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 185 transitions. [2024-12-02 08:03:23,858 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 185 transitions. Word has length 56 [2024-12-02 08:03:23,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:03:23,858 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 185 transitions. [2024-12-02 08:03:23,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-12-02 08:03:23,859 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 185 transitions. [2024-12-02 08:03:23,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-12-02 08:03:23,860 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:03:23,860 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:03:23,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 08:03:23,860 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:03:23,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:03:23,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1211636952, now seen corresponding path program 1 times [2024-12-02 08:03:23,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:03:23,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374277209] [2024-12-02 08:03:23,861 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:03:23,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:03:23,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:03:23,964 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 08:03:23,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:03:23,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374277209] [2024-12-02 08:03:23,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374277209] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:03:23,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:03:23,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:03:23,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381846603] [2024-12-02 08:03:23,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:03:23,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:03:23,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:03:23,966 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:03:23,966 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:03:23,967 INFO L87 Difference]: Start difference. First operand 154 states and 185 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-12-02 08:03:24,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:03:24,108 INFO L93 Difference]: Finished difference Result 460 states and 573 transitions. [2024-12-02 08:03:24,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:03:24,109 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 56 [2024-12-02 08:03:24,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:03:24,112 INFO L225 Difference]: With dead ends: 460 [2024-12-02 08:03:24,112 INFO L226 Difference]: Without dead ends: 314 [2024-12-02 08:03:24,113 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:03:24,114 INFO L435 NwaCegarLoop]: 157 mSDtfsCounter, 119 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:03:24,114 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 305 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:03:24,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2024-12-02 08:03:24,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 307. [2024-12-02 08:03:24,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 232 states have (on average 1.2198275862068966) internal successors, (283), 246 states have internal predecessors, (283), 37 states have call successors, (37), 32 states have call predecessors, (37), 37 states have return successors, (56), 39 states have call predecessors, (56), 37 states have call successors, (56) [2024-12-02 08:03:24,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 376 transitions. [2024-12-02 08:03:24,153 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 376 transitions. Word has length 56 [2024-12-02 08:03:24,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:03:24,153 INFO L471 AbstractCegarLoop]: Abstraction has 307 states and 376 transitions. [2024-12-02 08:03:24,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-12-02 08:03:24,153 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 376 transitions. [2024-12-02 08:03:24,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-12-02 08:03:24,154 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:03:24,155 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:03:24,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 08:03:24,155 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:03:24,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:03:24,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1216533890, now seen corresponding path program 1 times [2024-12-02 08:03:24,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:03:24,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705519505] [2024-12-02 08:03:24,156 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:03:24,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:03:24,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:03:24,329 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 08:03:24,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:03:24,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705519505] [2024-12-02 08:03:24,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705519505] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:03:24,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:03:24,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 08:03:24,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999138520] [2024-12-02 08:03:24,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:03:24,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 08:03:24,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:03:24,330 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 08:03:24,331 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:03:24,331 INFO L87 Difference]: Start difference. First operand 307 states and 376 transitions. Second operand has 10 states, 10 states have (on average 4.7) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 08:03:24,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:03:24,662 INFO L93 Difference]: Finished difference Result 865 states and 1101 transitions. [2024-12-02 08:03:24,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 08:03:24,663 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 2 states have call successors, (5) Word has length 60 [2024-12-02 08:03:24,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:03:24,668 INFO L225 Difference]: With dead ends: 865 [2024-12-02 08:03:24,668 INFO L226 Difference]: Without dead ends: 566 [2024-12-02 08:03:24,669 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2024-12-02 08:03:24,670 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 77 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 682 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:03:24,670 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 682 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:03:24,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2024-12-02 08:03:24,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 566. [2024-12-02 08:03:24,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 421 states have (on average 1.187648456057007) internal successors, (500), 446 states have internal predecessors, (500), 73 states have call successors, (73), 63 states have call predecessors, (73), 71 states have return successors, (116), 76 states have call predecessors, (116), 73 states have call successors, (116) [2024-12-02 08:03:24,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 689 transitions. [2024-12-02 08:03:24,725 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 689 transitions. Word has length 60 [2024-12-02 08:03:24,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:03:24,726 INFO L471 AbstractCegarLoop]: Abstraction has 566 states and 689 transitions. [2024-12-02 08:03:24,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 08:03:24,726 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 689 transitions. [2024-12-02 08:03:24,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 08:03:24,730 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:03:24,731 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:03:24,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 08:03:24,731 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:03:24,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:03:24,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1713760044, now seen corresponding path program 1 times [2024-12-02 08:03:24,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:03:24,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411013681] [2024-12-02 08:03:24,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:03:24,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:03:24,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:03:24,983 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-12-02 08:03:24,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:03:24,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411013681] [2024-12-02 08:03:24,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411013681] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:03:24,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1986618703] [2024-12-02 08:03:24,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:03:24,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:03:24,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_341f0d50-08c3-4527-bc36-ed45348d5c48/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:03:24,987 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_341f0d50-08c3-4527-bc36-ed45348d5c48/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:03:24,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_341f0d50-08c3-4527-bc36-ed45348d5c48/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 08:03:25,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:03:25,124 INFO L256 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-02 08:03:25,133 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:03:25,365 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-12-02 08:03:25,365 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:03:25,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1986618703] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:03:25,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:03:25,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2024-12-02 08:03:25,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901032942] [2024-12-02 08:03:25,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:03:25,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 08:03:25,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:03:25,367 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 08:03:25,368 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2024-12-02 08:03:25,368 INFO L87 Difference]: Start difference. First operand 566 states and 689 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (13), 3 states have call predecessors, (13), 5 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) [2024-12-02 08:03:25,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:03:25,618 INFO L93 Difference]: Finished difference Result 1250 states and 1530 transitions. [2024-12-02 08:03:25,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 08:03:25,619 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (13), 3 states have call predecessors, (13), 5 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) Word has length 108 [2024-12-02 08:03:25,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:03:25,621 INFO L225 Difference]: With dead ends: 1250 [2024-12-02 08:03:25,621 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 08:03:25,624 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2024-12-02 08:03:25,625 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 56 mSDsluCounter, 816 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 978 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:03:25,625 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 978 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:03:25,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 08:03:25,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 08:03:25,626 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) [2024-12-02 08:03:25,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 08:03:25,627 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 108 [2024-12-02 08:03:25,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:03:25,627 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 08:03:25,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (13), 3 states have call predecessors, (13), 5 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) [2024-12-02 08:03:25,627 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 08:03:25,627 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 08:03:25,630 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 08:03:25,639 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_341f0d50-08c3-4527-bc36-ed45348d5c48/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 08:03:25,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_341f0d50-08c3-4527-bc36-ed45348d5c48/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-12-02 08:03:25,834 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:03:25,837 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-12-02 08:03:29,765 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 08:03:29,781 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 08:03:29 BoogieIcfgContainer [2024-12-02 08:03:29,782 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 08:03:29,782 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 08:03:29,782 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 08:03:29,783 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 08:03:29,783 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:03:21" (3/4) ... [2024-12-02 08:03:29,786 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 08:03:29,792 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-12-02 08:03:29,792 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-12-02 08:03:29,792 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-12-02 08:03:29,792 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-12-02 08:03:29,792 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2024-12-02 08:03:29,792 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-12-02 08:03:29,792 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2024-12-02 08:03:29,792 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2024-12-02 08:03:29,797 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-12-02 08:03:29,797 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-12-02 08:03:29,798 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-12-02 08:03:29,798 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 08:03:29,798 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 08:03:29,904 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_341f0d50-08c3-4527-bc36-ed45348d5c48/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 08:03:29,904 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_341f0d50-08c3-4527-bc36-ed45348d5c48/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 08:03:29,904 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 08:03:29,905 INFO L158 Benchmark]: Toolchain (without parser) took 9247.84ms. Allocated memory was 142.6MB in the beginning and 293.6MB in the end (delta: 151.0MB). Free memory was 115.6MB in the beginning and 248.4MB in the end (delta: -132.8MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. [2024-12-02 08:03:29,906 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory was 80.4MB in the beginning and 80.3MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:03:29,906 INFO L158 Benchmark]: CACSL2BoogieTranslator took 471.57ms. Allocated memory is still 142.6MB. Free memory was 115.4MB in the beginning and 96.8MB in the end (delta: 18.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 08:03:29,906 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.81ms. Allocated memory is still 142.6MB. Free memory was 96.6MB in the beginning and 94.6MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 08:03:29,907 INFO L158 Benchmark]: Boogie Preprocessor took 46.33ms. Allocated memory is still 142.6MB. Free memory was 94.6MB in the beginning and 92.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:03:29,907 INFO L158 Benchmark]: RCFGBuilder took 481.59ms. Allocated memory is still 142.6MB. Free memory was 92.9MB in the beginning and 75.9MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 08:03:29,907 INFO L158 Benchmark]: TraceAbstraction took 8071.57ms. Allocated memory was 142.6MB in the beginning and 293.6MB in the end (delta: 151.0MB). Free memory was 75.4MB in the beginning and 256.7MB in the end (delta: -181.3MB). Peak memory consumption was 141.4MB. Max. memory is 16.1GB. [2024-12-02 08:03:29,908 INFO L158 Benchmark]: Witness Printer took 122.24ms. Allocated memory is still 293.6MB. Free memory was 256.7MB in the beginning and 248.4MB in the end (delta: 8.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:03:29,910 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory was 80.4MB in the beginning and 80.3MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 471.57ms. Allocated memory is still 142.6MB. Free memory was 115.4MB in the beginning and 96.8MB in the end (delta: 18.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.81ms. Allocated memory is still 142.6MB. Free memory was 96.6MB in the beginning and 94.6MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.33ms. Allocated memory is still 142.6MB. Free memory was 94.6MB in the beginning and 92.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 481.59ms. Allocated memory is still 142.6MB. Free memory was 92.9MB in the beginning and 75.9MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 8071.57ms. Allocated memory was 142.6MB in the beginning and 293.6MB in the end (delta: 151.0MB). Free memory was 75.4MB in the beginning and 256.7MB in the end (delta: -181.3MB). Peak memory consumption was 141.4MB. Max. memory is 16.1GB. * Witness Printer took 122.24ms. Allocated memory is still 293.6MB. Free memory was 256.7MB in the beginning and 248.4MB in the end (delta: 8.3MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [87] - GenericResultAtLocation [Line: 453]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [453] - GenericResultAtLocation [Line: 554]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [554] - GenericResultAtLocation [Line: 655]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [655] - GenericResultAtLocation [Line: 863]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [863] - GenericResultAtLocation [Line: 872]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [872] - GenericResultAtLocation [Line: 911]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [911] * 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: 868]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 94 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.1s, OverallIterations: 9, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 666 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 648 mSDsluCounter, 3884 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2893 mSDsCounter, 98 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 700 IncrementalHoareTripleChecker+Invalid, 798 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 98 mSolverCounterUnsat, 991 mSDtfsCounter, 700 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 193 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=566occurred in iteration=8, InterpolantAutomatonStates: 62, 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, 9 MinimizatonAttempts, 15 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 585 NumberOfCodeBlocks, 585 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 575 ConstructedInterpolants, 0 QuantifiedInterpolants, 966 SizeOfPredicates, 1 NumberOfNonLiveVariables, 346 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 98/100 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 921]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 922]: Loop Invariant Derived loop invariant: (((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (splverifierCounter == 0)) && (0 != systemActive)) || (((methaneLevelCritical == 0) && (splverifierCounter == 0)) && (0 != systemActive))) - InvariantResult [Line: 567]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2024-12-02 08:03:29,930 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_341f0d50-08c3-4527-bc36-ed45348d5c48/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE