./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product42.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_894b99cd-4485-4e7a-b1ba-5ebbfe49503c/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_894b99cd-4485-4e7a-b1ba-5ebbfe49503c/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_894b99cd-4485-4e7a-b1ba-5ebbfe49503c/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_894b99cd-4485-4e7a-b1ba-5ebbfe49503c/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product42.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_894b99cd-4485-4e7a-b1ba-5ebbfe49503c/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_894b99cd-4485-4e7a-b1ba-5ebbfe49503c/bin/uautomizer-verify-aQ6SnzHsRB --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 449370313253a0d5d7b509b2cd15e912fe8e85dcb7140575e7078385cf7fc6cf --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:25:50,423 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:25:50,508 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_894b99cd-4485-4e7a-b1ba-5ebbfe49503c/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 02:25:50,513 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:25:50,516 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:25:50,540 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:25:50,540 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:25:50,541 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:25:50,541 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:25:50,541 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:25:50,541 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:25:50,541 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:25:50,542 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:25:50,542 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:25:50,542 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:25:50,542 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:25:50,542 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:25:50,542 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:25:50,542 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:25:50,542 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:25:50,543 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:25:50,543 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:25:50,543 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:25:50,543 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:25:50,543 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:25:50,543 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:25:50,543 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:25:50,543 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:25:50,543 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:25:50,544 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:25:50,544 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:25:50,547 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:25:50,547 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:25:50,547 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:25:50,547 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:25:50,547 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:25:50,547 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:25:50,547 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:25:50,548 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:25:50,548 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:25:50,548 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:25:50,548 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:25:50,548 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:25:50,548 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:25:50,548 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:25:50,549 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:25:50,549 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:25:50,549 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:25:50,549 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_894b99cd-4485-4e7a-b1ba-5ebbfe49503c/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 449370313253a0d5d7b509b2cd15e912fe8e85dcb7140575e7078385cf7fc6cf [2024-11-28 02:25:50,871 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:25:50,885 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:25:50,888 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:25:50,890 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:25:50,891 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:25:50,893 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_894b99cd-4485-4e7a-b1ba-5ebbfe49503c/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/product-lines/minepump_spec3_product42.cil.c [2024-11-28 02:25:53,809 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_894b99cd-4485-4e7a-b1ba-5ebbfe49503c/bin/uautomizer-verify-aQ6SnzHsRB/data/43d85a308/ed3716a97f064b65b966a727c7ffbf9e/FLAG359add96c [2024-11-28 02:25:54,164 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:25:54,168 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_894b99cd-4485-4e7a-b1ba-5ebbfe49503c/sv-benchmarks/c/product-lines/minepump_spec3_product42.cil.c [2024-11-28 02:25:54,182 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_894b99cd-4485-4e7a-b1ba-5ebbfe49503c/bin/uautomizer-verify-aQ6SnzHsRB/data/43d85a308/ed3716a97f064b65b966a727c7ffbf9e/FLAG359add96c [2024-11-28 02:25:54,368 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_894b99cd-4485-4e7a-b1ba-5ebbfe49503c/bin/uautomizer-verify-aQ6SnzHsRB/data/43d85a308/ed3716a97f064b65b966a727c7ffbf9e [2024-11-28 02:25:54,370 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:25:54,372 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:25:54,373 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:25:54,373 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:25:54,378 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:25:54,379 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:25:54" (1/1) ... [2024-11-28 02:25:54,380 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32e020ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:25:54, skipping insertion in model container [2024-11-28 02:25:54,380 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:25:54" (1/1) ... [2024-11-28 02:25:54,425 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:25:54,653 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_894b99cd-4485-4e7a-b1ba-5ebbfe49503c/sv-benchmarks/c/product-lines/minepump_spec3_product42.cil.c[7477,7490] [2024-11-28 02:25:54,753 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:25:54,766 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:25:54,775 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] [2024-11-28 02:25:54,776 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [153] [2024-11-28 02:25:54,777 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [221] [2024-11-28 02:25:54,777 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [407] [2024-11-28 02:25:54,777 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [502] [2024-11-28 02:25:54,777 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [511] [2024-11-28 02:25:54,777 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [546] [2024-11-28 02:25:54,778 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [912] [2024-11-28 02:25:54,805 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_894b99cd-4485-4e7a-b1ba-5ebbfe49503c/sv-benchmarks/c/product-lines/minepump_spec3_product42.cil.c[7477,7490] [2024-11-28 02:25:54,872 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:25:54,895 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:25:54,895 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:25:54 WrapperNode [2024-11-28 02:25:54,896 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:25:54,897 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:25:54,897 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:25:54,897 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:25:54,904 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:25:54" (1/1) ... [2024-11-28 02:25:54,915 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:25:54" (1/1) ... [2024-11-28 02:25:54,937 INFO L138 Inliner]: procedures = 54, calls = 97, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 195 [2024-11-28 02:25:54,937 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:25:54,938 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:25:54,938 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:25:54,938 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:25:54,948 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:25:54" (1/1) ... [2024-11-28 02:25:54,948 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:25:54" (1/1) ... [2024-11-28 02:25:54,950 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:25:54" (1/1) ... [2024-11-28 02:25:54,962 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]. [2024-11-28 02:25:54,963 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:25:54" (1/1) ... [2024-11-28 02:25:54,963 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:25:54" (1/1) ... [2024-11-28 02:25:54,967 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:25:54" (1/1) ... [2024-11-28 02:25:54,968 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:25:54" (1/1) ... [2024-11-28 02:25:54,972 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:25:54" (1/1) ... [2024-11-28 02:25:54,974 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:25:54" (1/1) ... [2024-11-28 02:25:54,975 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:25:54" (1/1) ... [2024-11-28 02:25:54,977 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:25:54,978 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:25:54,978 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:25:54,978 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:25:54,979 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:25:54" (1/1) ... [2024-11-28 02:25:54,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:25:55,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_894b99cd-4485-4e7a-b1ba-5ebbfe49503c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:25:55,030 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_894b99cd-4485-4e7a-b1ba-5ebbfe49503c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:25:55,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_894b99cd-4485-4e7a-b1ba-5ebbfe49503c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:25:55,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:25:55,052 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-28 02:25:55,053 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-28 02:25:55,053 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2024-11-28 02:25:55,053 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2024-11-28 02:25:55,053 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-28 02:25:55,053 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-28 02:25:55,053 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-28 02:25:55,053 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-28 02:25:55,053 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-28 02:25:55,053 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-28 02:25:55,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:25:55,053 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-28 02:25:55,053 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-28 02:25:55,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:25:55,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:25:55,131 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:25:55,133 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:25:55,445 INFO L? ?]: Removed 44 outVars from TransFormulas that were not future-live. [2024-11-28 02:25:55,445 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:25:55,460 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:25:55,461 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-28 02:25:55,463 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:25:55 BoogieIcfgContainer [2024-11-28 02:25:55,463 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:25:55,466 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:25:55,466 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:25:55,472 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:25:55,472 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:25:54" (1/3) ... [2024-11-28 02:25:55,473 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57d321f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:25:55, skipping insertion in model container [2024-11-28 02:25:55,473 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:25:54" (2/3) ... [2024-11-28 02:25:55,473 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57d321f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:25:55, skipping insertion in model container [2024-11-28 02:25:55,473 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:25:55" (3/3) ... [2024-11-28 02:25:55,476 INFO L128 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product42.cil.c [2024-11-28 02:25:55,493 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:25:55,494 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG minepump_spec3_product42.cil.c that has 7 procedures, 80 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-11-28 02:25:55,569 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:25:55,587 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;@7b050128, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:25:55,588 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:25:55,594 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 62 states have (on average 1.403225806451613) internal successors, (87), 68 states have internal predecessors, (87), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 02:25:55,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-28 02:25:55,605 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:25:55,606 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] [2024-11-28 02:25:55,607 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:25:55,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:25:55,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1956896675, now seen corresponding path program 1 times [2024-11-28 02:25:55,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:25:55,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372316138] [2024-11-28 02:25:55,623 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:25:55,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:25:55,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:25:55,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:25:55,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:25:55,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372316138] [2024-11-28 02:25:55,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372316138] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:25:55,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:25:55,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:25:55,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731566922] [2024-11-28 02:25:55,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:25:55,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:25:55,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:25:55,906 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:25:55,907 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:25:55,909 INFO L87 Difference]: Start difference. First operand has 80 states, 62 states have (on average 1.403225806451613) internal successors, (87), 68 states have internal predecessors, (87), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 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) [2024-11-28 02:25:55,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:25:55,945 INFO L93 Difference]: Finished difference Result 152 states and 209 transitions. [2024-11-28 02:25:55,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:25:55,947 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 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 [2024-11-28 02:25:55,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:25:55,956 INFO L225 Difference]: With dead ends: 152 [2024-11-28 02:25:55,957 INFO L226 Difference]: Without dead ends: 71 [2024-11-28 02:25:55,961 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:25:55,965 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:25:55,966 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:25:55,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-11-28 02:25:56,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2024-11-28 02:25:56,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 55 states have (on average 1.3272727272727274) internal successors, (73), 60 states have internal predecessors, (73), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 02:25:56,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 92 transitions. [2024-11-28 02:25:56,015 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 92 transitions. Word has length 25 [2024-11-28 02:25:56,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:25:56,016 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 92 transitions. [2024-11-28 02:25:56,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 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) [2024-11-28 02:25:56,016 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 92 transitions. [2024-11-28 02:25:56,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-28 02:25:56,019 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:25:56,019 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] [2024-11-28 02:25:56,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 02:25:56,020 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:25:56,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:25:56,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1878792255, now seen corresponding path program 1 times [2024-11-28 02:25:56,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:25:56,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986822263] [2024-11-28 02:25:56,022 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:25:56,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:25:56,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:25:56,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:25:56,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:25:56,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986822263] [2024-11-28 02:25:56,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986822263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:25:56,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:25:56,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:25:56,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680479840] [2024-11-28 02:25:56,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:25:56,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:25:56,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:25:56,213 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:25:56,213 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:25:56,214 INFO L87 Difference]: Start difference. First operand 71 states and 92 transitions. 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) [2024-11-28 02:25:56,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:25:56,236 INFO L93 Difference]: Finished difference Result 109 states and 141 transitions. [2024-11-28 02:25:56,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:25:56,238 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 [2024-11-28 02:25:56,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:25:56,239 INFO L225 Difference]: With dead ends: 109 [2024-11-28 02:25:56,241 INFO L226 Difference]: Without dead ends: 63 [2024-11-28 02:25:56,241 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 [2024-11-28 02:25:56,243 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 13 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 144 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 [2024-11-28 02:25:56,244 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 144 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:25:56,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-11-28 02:25:56,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2024-11-28 02:25:56,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 50 states have (on average 1.34) internal successors, (67), 55 states have internal predecessors, (67), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-28 02:25:56,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 81 transitions. [2024-11-28 02:25:56,253 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 81 transitions. Word has length 25 [2024-11-28 02:25:56,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:25:56,254 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 81 transitions. [2024-11-28 02:25:56,254 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) [2024-11-28 02:25:56,254 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 81 transitions. [2024-11-28 02:25:56,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-28 02:25:56,255 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:25:56,255 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] [2024-11-28 02:25:56,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:25:56,256 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:25:56,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:25:56,256 INFO L85 PathProgramCache]: Analyzing trace with hash -187115122, now seen corresponding path program 1 times [2024-11-28 02:25:56,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:25:56,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642196093] [2024-11-28 02:25:56,257 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:25:56,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:25:56,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:25:56,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:25:56,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:25:56,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642196093] [2024-11-28 02:25:56,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642196093] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:25:56,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:25:56,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:25:56,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674457869] [2024-11-28 02:25:56,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:25:56,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:25:56,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:25:56,421 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:25:56,421 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:25:56,421 INFO L87 Difference]: Start difference. First operand 63 states and 81 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) [2024-11-28 02:25:56,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:25:56,483 INFO L93 Difference]: Finished difference Result 119 states and 156 transitions. [2024-11-28 02:25:56,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:25:56,484 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 [2024-11-28 02:25:56,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:25:56,487 INFO L225 Difference]: With dead ends: 119 [2024-11-28 02:25:56,487 INFO L226 Difference]: Without dead ends: 63 [2024-11-28 02:25:56,488 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 [2024-11-28 02:25:56,489 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 75 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 229 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 [2024-11-28 02:25:56,489 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 229 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:25:56,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-11-28 02:25:56,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2024-11-28 02:25:56,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 50 states have (on average 1.32) internal successors, (66), 55 states have internal predecessors, (66), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-28 02:25:56,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 80 transitions. [2024-11-28 02:25:56,506 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 80 transitions. Word has length 30 [2024-11-28 02:25:56,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:25:56,506 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 80 transitions. [2024-11-28 02:25:56,506 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) [2024-11-28 02:25:56,507 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 80 transitions. [2024-11-28 02:25:56,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-28 02:25:56,507 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:25:56,508 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] [2024-11-28 02:25:56,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:25:56,508 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:25:56,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:25:56,509 INFO L85 PathProgramCache]: Analyzing trace with hash 413726059, now seen corresponding path program 1 times [2024-11-28 02:25:56,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:25:56,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98083652] [2024-11-28 02:25:56,509 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:25:56,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:25:56,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:25:56,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:25:56,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:25:56,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98083652] [2024-11-28 02:25:56,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98083652] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:25:56,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:25:56,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:25:56,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937126450] [2024-11-28 02:25:56,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:25:56,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:25:56,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:25:56,562 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:25:56,562 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:25:56,562 INFO L87 Difference]: Start difference. First operand 63 states and 80 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:25:56,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:25:56,629 INFO L93 Difference]: Finished difference Result 160 states and 207 transitions. [2024-11-28 02:25:56,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:25:56,632 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 35 [2024-11-28 02:25:56,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:25:56,633 INFO L225 Difference]: With dead ends: 160 [2024-11-28 02:25:56,633 INFO L226 Difference]: Without dead ends: 104 [2024-11-28 02:25:56,634 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 [2024-11-28 02:25:56,634 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 69 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:25:56,638 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 142 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:25:56,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-28 02:25:56,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 102. [2024-11-28 02:25:56,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 80 states have (on average 1.3125) internal successors, (105), 87 states have internal predecessors, (105), 11 states have call successors, (11), 10 states have call predecessors, (11), 10 states have return successors, (13), 11 states have call predecessors, (13), 11 states have call successors, (13) [2024-11-28 02:25:56,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 129 transitions. [2024-11-28 02:25:56,665 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 129 transitions. Word has length 35 [2024-11-28 02:25:56,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:25:56,666 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 129 transitions. [2024-11-28 02:25:56,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:25:56,666 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 129 transitions. [2024-11-28 02:25:56,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-28 02:25:56,671 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:25:56,671 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] [2024-11-28 02:25:56,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 02:25:56,671 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:25:56,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:25:56,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1120509789, now seen corresponding path program 1 times [2024-11-28 02:25:56,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:25:56,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885023869] [2024-11-28 02:25:56,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:25:56,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:25:56,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:25:56,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:25:56,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:25:56,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885023869] [2024-11-28 02:25:56,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885023869] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:25:56,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:25:56,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:25:56,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808993354] [2024-11-28 02:25:56,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:25:56,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:25:56,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:25:56,904 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:25:56,904 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:25:56,904 INFO L87 Difference]: Start difference. First operand 102 states and 129 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:25:57,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:25:57,027 INFO L93 Difference]: Finished difference Result 276 states and 365 transitions. [2024-11-28 02:25:57,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:25:57,028 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 41 [2024-11-28 02:25:57,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:25:57,030 INFO L225 Difference]: With dead ends: 276 [2024-11-28 02:25:57,030 INFO L226 Difference]: Without dead ends: 181 [2024-11-28 02:25:57,031 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 [2024-11-28 02:25:57,032 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 34 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:25:57,032 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 286 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:25:57,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-11-28 02:25:57,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2024-11-28 02:25:57,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 142 states have (on average 1.2887323943661972) internal successors, (183), 152 states have internal predecessors, (183), 21 states have call successors, (21), 19 states have call predecessors, (21), 17 states have return successors, (27), 19 states have call predecessors, (27), 21 states have call successors, (27) [2024-11-28 02:25:57,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 231 transitions. [2024-11-28 02:25:57,067 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 231 transitions. Word has length 41 [2024-11-28 02:25:57,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:25:57,067 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 231 transitions. [2024-11-28 02:25:57,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:25:57,072 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 231 transitions. [2024-11-28 02:25:57,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-28 02:25:57,073 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:25:57,073 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] [2024-11-28 02:25:57,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 02:25:57,073 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:25:57,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:25:57,074 INFO L85 PathProgramCache]: Analyzing trace with hash -25034359, now seen corresponding path program 1 times [2024-11-28 02:25:57,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:25:57,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033704586] [2024-11-28 02:25:57,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:25:57,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:25:57,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:25:57,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:25:57,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:25:57,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033704586] [2024-11-28 02:25:57,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033704586] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:25:57,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:25:57,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:25:57,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451471780] [2024-11-28 02:25:57,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:25:57,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:25:57,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:25:57,273 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:25:57,274 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:25:57,274 INFO L87 Difference]: Start difference. First operand 181 states and 231 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 02:25:57,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:25:57,392 INFO L93 Difference]: Finished difference Result 361 states and 482 transitions. [2024-11-28 02:25:57,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:25:57,393 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 45 [2024-11-28 02:25:57,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:25:57,397 INFO L225 Difference]: With dead ends: 361 [2024-11-28 02:25:57,401 INFO L226 Difference]: Without dead ends: 266 [2024-11-28 02:25:57,402 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:25:57,403 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 58 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:25:57,403 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 282 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:25:57,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2024-11-28 02:25:57,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 262. [2024-11-28 02:25:57,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 206 states have (on average 1.2864077669902914) internal successors, (265), 220 states have internal predecessors, (265), 30 states have call successors, (30), 27 states have call predecessors, (30), 25 states have return successors, (42), 28 states have call predecessors, (42), 30 states have call successors, (42) [2024-11-28 02:25:57,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 337 transitions. [2024-11-28 02:25:57,462 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 337 transitions. Word has length 45 [2024-11-28 02:25:57,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:25:57,464 INFO L471 AbstractCegarLoop]: Abstraction has 262 states and 337 transitions. [2024-11-28 02:25:57,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 02:25:57,464 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 337 transitions. [2024-11-28 02:25:57,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-28 02:25:57,466 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:25:57,466 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] [2024-11-28 02:25:57,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 02:25:57,470 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:25:57,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:25:57,471 INFO L85 PathProgramCache]: Analyzing trace with hash 193820359, now seen corresponding path program 1 times [2024-11-28 02:25:57,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:25:57,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377294371] [2024-11-28 02:25:57,471 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:25:57,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:25:57,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:25:57,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:25:57,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:25:57,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377294371] [2024-11-28 02:25:57,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377294371] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:25:57,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:25:57,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:25:57,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559916732] [2024-11-28 02:25:57,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:25:57,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:25:57,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:25:57,583 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:25:57,583 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:25:57,583 INFO L87 Difference]: Start difference. First operand 262 states and 337 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 02:25:57,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:25:57,636 INFO L93 Difference]: Finished difference Result 442 states and 575 transitions. [2024-11-28 02:25:57,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:25:57,637 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 45 [2024-11-28 02:25:57,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:25:57,639 INFO L225 Difference]: With dead ends: 442 [2024-11-28 02:25:57,639 INFO L226 Difference]: Without dead ends: 262 [2024-11-28 02:25:57,640 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:25:57,644 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 0 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:25:57,646 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 231 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:25:57,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2024-11-28 02:25:57,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2024-11-28 02:25:57,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 206 states have (on average 1.2815533980582525) internal successors, (264), 220 states have internal predecessors, (264), 30 states have call successors, (30), 27 states have call predecessors, (30), 25 states have return successors, (42), 28 states have call predecessors, (42), 30 states have call successors, (42) [2024-11-28 02:25:57,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 336 transitions. [2024-11-28 02:25:57,695 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 336 transitions. Word has length 45 [2024-11-28 02:25:57,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:25:57,695 INFO L471 AbstractCegarLoop]: Abstraction has 262 states and 336 transitions. [2024-11-28 02:25:57,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 02:25:57,695 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 336 transitions. [2024-11-28 02:25:57,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-28 02:25:57,696 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:25:57,696 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] [2024-11-28 02:25:57,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 02:25:57,697 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:25:57,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:25:57,697 INFO L85 PathProgramCache]: Analyzing trace with hash -623828091, now seen corresponding path program 1 times [2024-11-28 02:25:57,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:25:57,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367978222] [2024-11-28 02:25:57,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:25:57,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:25:57,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:25:57,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:25:57,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:25:57,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367978222] [2024-11-28 02:25:57,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367978222] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:25:57,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:25:57,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:25:57,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146862713] [2024-11-28 02:25:57,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:25:57,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:25:57,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:25:57,830 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:25:57,831 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:25:57,831 INFO L87 Difference]: Start difference. First operand 262 states and 336 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 02:25:57,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:25:57,897 INFO L93 Difference]: Finished difference Result 520 states and 679 transitions. [2024-11-28 02:25:57,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:25:57,897 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 45 [2024-11-28 02:25:57,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:25:57,899 INFO L225 Difference]: With dead ends: 520 [2024-11-28 02:25:57,903 INFO L226 Difference]: Without dead ends: 265 [2024-11-28 02:25:57,904 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 [2024-11-28 02:25:57,905 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 0 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:25:57,906 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 307 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:25:57,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2024-11-28 02:25:57,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 265. [2024-11-28 02:25:57,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 211 states have (on average 1.2701421800947867) internal successors, (268), 224 states have internal predecessors, (268), 29 states have call successors, (29), 26 states have call predecessors, (29), 24 states have return successors, (41), 27 states have call predecessors, (41), 29 states have call successors, (41) [2024-11-28 02:25:57,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 338 transitions. [2024-11-28 02:25:57,945 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 338 transitions. Word has length 45 [2024-11-28 02:25:57,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:25:57,945 INFO L471 AbstractCegarLoop]: Abstraction has 265 states and 338 transitions. [2024-11-28 02:25:57,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 02:25:57,946 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 338 transitions. [2024-11-28 02:25:57,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-28 02:25:57,950 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:25:57,950 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] [2024-11-28 02:25:57,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 02:25:57,950 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:25:57,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:25:57,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1409060371, now seen corresponding path program 1 times [2024-11-28 02:25:57,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:25:57,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437101169] [2024-11-28 02:25:57,951 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:25:57,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:25:57,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:25:58,233 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 02:25:58,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:25:58,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437101169] [2024-11-28 02:25:58,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437101169] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:25:58,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1497003924] [2024-11-28 02:25:58,236 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:25:58,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:25:58,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_894b99cd-4485-4e7a-b1ba-5ebbfe49503c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:25:58,241 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_894b99cd-4485-4e7a-b1ba-5ebbfe49503c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:25:58,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_894b99cd-4485-4e7a-b1ba-5ebbfe49503c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:25:58,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:25:58,351 INFO L256 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 02:25:58,357 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:25:58,520 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:25:58,521 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:25:58,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1497003924] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:25:58,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:25:58,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-11-28 02:25:58,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144072590] [2024-11-28 02:25:58,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:25:58,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 02:25:58,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:25:58,524 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 02:25:58,524 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:25:58,524 INFO L87 Difference]: Start difference. First operand 265 states and 338 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 02:25:58,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:25:58,691 INFO L93 Difference]: Finished difference Result 761 states and 993 transitions. [2024-11-28 02:25:58,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:25:58,692 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 50 [2024-11-28 02:25:58,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:25:58,698 INFO L225 Difference]: With dead ends: 761 [2024-11-28 02:25:58,699 INFO L226 Difference]: Without dead ends: 503 [2024-11-28 02:25:58,701 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:25:58,702 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 43 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:25:58,703 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 430 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:25:58,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2024-11-28 02:25:58,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 501. [2024-11-28 02:25:58,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 397 states have (on average 1.251889168765743) internal successors, (497), 419 states have internal predecessors, (497), 56 states have call successors, (56), 51 states have call predecessors, (56), 47 states have return successors, (84), 52 states have call predecessors, (84), 56 states have call successors, (84) [2024-11-28 02:25:58,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 637 transitions. [2024-11-28 02:25:58,777 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 637 transitions. Word has length 50 [2024-11-28 02:25:58,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:25:58,777 INFO L471 AbstractCegarLoop]: Abstraction has 501 states and 637 transitions. [2024-11-28 02:25:58,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 02:25:58,778 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 637 transitions. [2024-11-28 02:25:58,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-28 02:25:58,780 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:25:58,780 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] [2024-11-28 02:25:58,792 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_894b99cd-4485-4e7a-b1ba-5ebbfe49503c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 02:25:58,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_894b99cd-4485-4e7a-b1ba-5ebbfe49503c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:25:58,984 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:25:58,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:25:58,985 INFO L85 PathProgramCache]: Analyzing trace with hash 718701930, now seen corresponding path program 1 times [2024-11-28 02:25:58,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:25:58,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610288533] [2024-11-28 02:25:58,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:25:58,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:25:59,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:25:59,157 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 02:25:59,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:25:59,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610288533] [2024-11-28 02:25:59,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610288533] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:25:59,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:25:59,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 02:25:59,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478983815] [2024-11-28 02:25:59,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:25:59,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 02:25:59,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:25:59,159 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 02:25:59,159 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:25:59,159 INFO L87 Difference]: Start difference. First operand 501 states and 637 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 02:25:59,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:25:59,302 INFO L93 Difference]: Finished difference Result 995 states and 1275 transitions. [2024-11-28 02:25:59,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:25:59,302 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 51 [2024-11-28 02:25:59,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:25:59,305 INFO L225 Difference]: With dead ends: 995 [2024-11-28 02:25:59,305 INFO L226 Difference]: Without dead ends: 249 [2024-11-28 02:25:59,308 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:25:59,310 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 44 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:25:59,312 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 574 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:25:59,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2024-11-28 02:25:59,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 240. [2024-11-28 02:25:59,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 191 states have (on average 1.193717277486911) internal successors, (228), 201 states have internal predecessors, (228), 26 states have call successors, (26), 23 states have call predecessors, (26), 22 states have return successors, (30), 24 states have call predecessors, (30), 26 states have call successors, (30) [2024-11-28 02:25:59,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 284 transitions. [2024-11-28 02:25:59,340 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 284 transitions. Word has length 51 [2024-11-28 02:25:59,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:25:59,340 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 284 transitions. [2024-11-28 02:25:59,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 02:25:59,341 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 284 transitions. [2024-11-28 02:25:59,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-28 02:25:59,342 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:25:59,342 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] [2024-11-28 02:25:59,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 02:25:59,344 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:25:59,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:25:59,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1019103439, now seen corresponding path program 1 times [2024-11-28 02:25:59,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:25:59,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432683338] [2024-11-28 02:25:59,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:25:59,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:25:59,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:25:59,567 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 02:25:59,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:25:59,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432683338] [2024-11-28 02:25:59,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432683338] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:25:59,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:25:59,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 02:25:59,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300801294] [2024-11-28 02:25:59,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:25:59,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 02:25:59,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:25:59,569 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 02:25:59,569 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:25:59,570 INFO L87 Difference]: Start difference. First operand 240 states and 284 transitions. Second operand has 9 states, 9 states have (on average 5.0) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 02:25:59,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:25:59,736 INFO L93 Difference]: Finished difference Result 463 states and 554 transitions. [2024-11-28 02:25:59,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:25:59,737 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.0) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 54 [2024-11-28 02:25:59,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:25:59,737 INFO L225 Difference]: With dead ends: 463 [2024-11-28 02:25:59,738 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 02:25:59,739 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-28 02:25:59,739 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 51 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 672 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:25:59,740 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 672 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:25:59,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 02:25:59,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 02:25:59,740 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) [2024-11-28 02:25:59,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 02:25:59,741 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 54 [2024-11-28 02:25:59,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:25:59,741 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 02:25:59,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.0) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 02:25:59,741 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 02:25:59,742 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 02:25:59,744 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 02:25:59,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 02:25:59,751 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:25:59,754 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 02:26:02,988 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 02:26:03,002 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:26:03 BoogieIcfgContainer [2024-11-28 02:26:03,002 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 02:26:03,003 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 02:26:03,003 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 02:26:03,003 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 02:26:03,004 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:25:55" (3/4) ... [2024-11-28 02:26:03,006 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 02:26:03,011 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-28 02:26:03,011 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-28 02:26:03,011 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2024-11-28 02:26:03,011 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-28 02:26:03,011 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-28 02:26:03,012 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-28 02:26:03,023 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2024-11-28 02:26:03,023 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-28 02:26:03,024 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-28 02:26:03,025 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 02:26:03,025 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 02:26:03,144 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_894b99cd-4485-4e7a-b1ba-5ebbfe49503c/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 02:26:03,144 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_894b99cd-4485-4e7a-b1ba-5ebbfe49503c/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 02:26:03,144 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 02:26:03,145 INFO L158 Benchmark]: Toolchain (without parser) took 8773.39ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 91.9MB in the beginning and 108.5MB in the end (delta: -16.6MB). Peak memory consumption was 81.9MB. Max. memory is 16.1GB. [2024-11-28 02:26:03,145 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 117.4MB. Free memory is still 73.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:26:03,145 INFO L158 Benchmark]: CACSL2BoogieTranslator took 522.94ms. Allocated memory is still 117.4MB. Free memory was 91.7MB in the beginning and 73.2MB in the end (delta: 18.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 02:26:03,146 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.82ms. Allocated memory is still 117.4MB. Free memory was 73.2MB in the beginning and 71.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:26:03,146 INFO L158 Benchmark]: Boogie Preprocessor took 39.02ms. Allocated memory is still 117.4MB. Free memory was 71.3MB in the beginning and 69.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:26:03,146 INFO L158 Benchmark]: RCFGBuilder took 485.49ms. Allocated memory is still 117.4MB. Free memory was 69.6MB in the beginning and 53.5MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 02:26:03,146 INFO L158 Benchmark]: TraceAbstraction took 7536.59ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 52.8MB in the beginning and 40.3MB in the end (delta: 12.5MB). Peak memory consumption was 31.6MB. Max. memory is 16.1GB. [2024-11-28 02:26:03,147 INFO L158 Benchmark]: Witness Printer took 141.32ms. Allocated memory is still 142.6MB. Free memory was 40.3MB in the beginning and 108.5MB in the end (delta: -68.2MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2024-11-28 02:26:03,152 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 117.4MB. Free memory is still 73.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 522.94ms. Allocated memory is still 117.4MB. Free memory was 91.7MB in the beginning and 73.2MB in the end (delta: 18.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.82ms. Allocated memory is still 117.4MB. Free memory was 73.2MB in the beginning and 71.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 39.02ms. Allocated memory is still 117.4MB. Free memory was 71.3MB in the beginning and 69.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 485.49ms. Allocated memory is still 117.4MB. Free memory was 69.6MB in the beginning and 53.5MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 7536.59ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 52.8MB in the beginning and 40.3MB in the end (delta: 12.5MB). Peak memory consumption was 31.6MB. Max. memory is 16.1GB. * Witness Printer took 141.32ms. Allocated memory is still 142.6MB. Free memory was 40.3MB in the beginning and 108.5MB in the end (delta: -68.2MB). Peak memory consumption was 8.5MB. 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,"Test.i","") [49] - GenericResultAtLocation [Line: 153]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [153] - GenericResultAtLocation [Line: 221]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [221] - GenericResultAtLocation [Line: 407]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [407] - GenericResultAtLocation [Line: 502]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [502] - GenericResultAtLocation [Line: 511]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [511] - GenericResultAtLocation [Line: 546]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [546] - GenericResultAtLocation [Line: 912]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [912] * 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: 507]: 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 7 procedures, 80 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.2s, OverallIterations: 11, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 394 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 387 mSDsluCounter, 3398 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2461 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 274 IncrementalHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 937 mSDtfsCounter, 274 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 122 GetRequests, 73 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=501occurred in iteration=9, InterpolantAutomatonStates: 55, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 17 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 496 NumberOfCodeBlocks, 496 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 484 ConstructedInterpolants, 0 QuantifiedInterpolants, 879 SizeOfPredicates, 1 NumberOfNonLiveVariables, 217 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 12 InterpolantComputations, 11 PerfectInterpolantSequences, 10/12 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: 164]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: (((((pumpRunning != 0) && (splverifierCounter == 0)) && (0 != systemActive)) || ((((methaneLevelCritical == 0) && (waterLevel <= 1)) && (splverifierCounter == 0)) && (0 != systemActive))) || (((methaneLevelCritical == 1) && (splverifierCounter == 0)) && (0 != systemActive))) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2024-11-28 02:26:03,172 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_894b99cd-4485-4e7a-b1ba-5ebbfe49503c/bin/uautomizer-verify-aQ6SnzHsRB/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