./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product50.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_bae8d5f3-6ec5-4645-b19a-a74242734a35/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae8d5f3-6ec5-4645-b19a-a74242734a35/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_bae8d5f3-6ec5-4645-b19a-a74242734a35/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae8d5f3-6ec5-4645-b19a-a74242734a35/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product50.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae8d5f3-6ec5-4645-b19a-a74242734a35/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_bae8d5f3-6ec5-4645-b19a-a74242734a35/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 9cfe95aaca007f6467395901a9efc89e5ad27f0fc32ae7ae8a1fe4e27a1f35c1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:22:51,925 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:22:52,032 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae8d5f3-6ec5-4645-b19a-a74242734a35/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 02:22:52,039 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:22:52,043 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:22:52,070 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:22:52,071 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:22:52,071 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:22:52,072 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:22:52,072 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:22:52,073 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:22:52,073 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:22:52,074 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:22:52,074 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:22:52,074 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:22:52,074 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:22:52,074 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:22:52,074 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:22:52,074 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:22:52,074 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:22:52,074 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:22:52,074 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:22:52,075 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:22:52,075 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:22:52,075 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:22:52,075 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:22:52,075 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:22:52,075 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:22:52,075 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:22:52,075 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:22:52,075 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:22:52,075 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:22:52,075 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:22:52,076 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:22:52,077 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:22:52,077 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:22:52,077 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:22:52,077 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:22:52,077 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:22:52,078 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:22:52,078 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:22:52,078 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:22:52,078 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:22:52,078 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:22:52,078 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:22:52,079 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:22:52,079 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:22:52,079 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:22:52,079 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_bae8d5f3-6ec5-4645-b19a-a74242734a35/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 -> 9cfe95aaca007f6467395901a9efc89e5ad27f0fc32ae7ae8a1fe4e27a1f35c1 [2024-11-28 02:22:52,407 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:22:52,416 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:22:52,419 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:22:52,420 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:22:52,420 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:22:52,422 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae8d5f3-6ec5-4645-b19a-a74242734a35/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/product-lines/minepump_spec5_product50.cil.c [2024-11-28 02:22:55,546 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae8d5f3-6ec5-4645-b19a-a74242734a35/bin/uautomizer-verify-aQ6SnzHsRB/data/fb31a17ba/fc42849a48a8481dafca464bba9fe673/FLAGe67cfacc7 [2024-11-28 02:22:55,916 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:22:55,917 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae8d5f3-6ec5-4645-b19a-a74242734a35/sv-benchmarks/c/product-lines/minepump_spec5_product50.cil.c [2024-11-28 02:22:55,930 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae8d5f3-6ec5-4645-b19a-a74242734a35/bin/uautomizer-verify-aQ6SnzHsRB/data/fb31a17ba/fc42849a48a8481dafca464bba9fe673/FLAGe67cfacc7 [2024-11-28 02:22:55,946 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae8d5f3-6ec5-4645-b19a-a74242734a35/bin/uautomizer-verify-aQ6SnzHsRB/data/fb31a17ba/fc42849a48a8481dafca464bba9fe673 [2024-11-28 02:22:55,948 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:22:55,950 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:22:55,951 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:22:55,951 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:22:55,956 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:22:55,957 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:22:55" (1/1) ... [2024-11-28 02:22:55,958 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78e7c093 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:55, skipping insertion in model container [2024-11-28 02:22:55,958 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:22:55" (1/1) ... [2024-11-28 02:22:56,008 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:22:56,219 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_bae8d5f3-6ec5-4645-b19a-a74242734a35/sv-benchmarks/c/product-lines/minepump_spec5_product50.cil.c[1605,1618] [2024-11-28 02:22:56,448 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:22:56,469 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:22:56,480 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2024-11-28 02:22:56,482 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [58] [2024-11-28 02:22:56,482 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [279] [2024-11-28 02:22:56,483 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [349] [2024-11-28 02:22:56,483 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [453] [2024-11-28 02:22:56,483 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [819] [2024-11-28 02:22:56,483 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [868] [2024-11-28 02:22:56,484 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [906] [2024-11-28 02:22:56,492 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_bae8d5f3-6ec5-4645-b19a-a74242734a35/sv-benchmarks/c/product-lines/minepump_spec5_product50.cil.c[1605,1618] [2024-11-28 02:22:56,585 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:22:56,610 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:22:56,610 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:56 WrapperNode [2024-11-28 02:22:56,611 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:22:56,612 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:22:56,612 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:22:56,612 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:22:56,620 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:56" (1/1) ... [2024-11-28 02:22:56,632 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:56" (1/1) ... [2024-11-28 02:22:56,657 INFO L138 Inliner]: procedures = 58, calls = 102, calls flagged for inlining = 26, calls inlined = 22, statements flattened = 211 [2024-11-28 02:22:56,657 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:22:56,658 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:22:56,658 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:22:56,658 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:22:56,673 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:56" (1/1) ... [2024-11-28 02:22:56,673 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:56" (1/1) ... [2024-11-28 02:22:56,679 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:56" (1/1) ... [2024-11-28 02:22:56,696 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 02:22:56,696 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:56" (1/1) ... [2024-11-28 02:22:56,697 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:56" (1/1) ... [2024-11-28 02:22:56,701 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:56" (1/1) ... [2024-11-28 02:22:56,703 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:56" (1/1) ... [2024-11-28 02:22:56,707 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:56" (1/1) ... [2024-11-28 02:22:56,708 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:56" (1/1) ... [2024-11-28 02:22:56,709 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:56" (1/1) ... [2024-11-28 02:22:56,712 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:22:56,713 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:22:56,713 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:22:56,713 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:22:56,714 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:56" (1/1) ... [2024-11-28 02:22:56,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:22:56,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae8d5f3-6ec5-4645-b19a-a74242734a35/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:22:56,748 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae8d5f3-6ec5-4645-b19a-a74242734a35/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:22:56,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae8d5f3-6ec5-4645-b19a-a74242734a35/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:22:56,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:22:56,776 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-28 02:22:56,776 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-28 02:22:56,776 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-28 02:22:56,776 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-28 02:22:56,776 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-28 02:22:56,776 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-28 02:22:56,776 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-11-28 02:22:56,776 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-11-28 02:22:56,776 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-28 02:22:56,776 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-28 02:22:56,777 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2024-11-28 02:22:56,777 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2024-11-28 02:22:56,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:22:56,780 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-28 02:22:56,780 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-28 02:22:56,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:22:56,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:22:56,873 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:22:56,875 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:22:57,303 INFO L? ?]: Removed 45 outVars from TransFormulas that were not future-live. [2024-11-28 02:22:57,303 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:22:57,323 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:22:57,326 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-28 02:22:57,327 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:22:57 BoogieIcfgContainer [2024-11-28 02:22:57,327 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:22:57,331 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:22:57,331 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:22:57,338 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:22:57,339 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:22:55" (1/3) ... [2024-11-28 02:22:57,340 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@533d7982 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:22:57, skipping insertion in model container [2024-11-28 02:22:57,340 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:56" (2/3) ... [2024-11-28 02:22:57,340 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@533d7982 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:22:57, skipping insertion in model container [2024-11-28 02:22:57,342 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:22:57" (3/3) ... [2024-11-28 02:22:57,343 INFO L128 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product50.cil.c [2024-11-28 02:22:57,360 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:22:57,362 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG minepump_spec5_product50.cil.c that has 8 procedures, 91 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-11-28 02:22:57,432 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:22:57,446 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;@6adf9962, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:22:57,447 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:22:57,452 INFO L276 IsEmpty]: Start isEmpty. Operand has 91 states, 70 states have (on average 1.3857142857142857) internal successors, (97), 78 states have internal predecessors, (97), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 02:22:57,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-28 02:22:57,464 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:22:57,464 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] [2024-11-28 02:22:57,466 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:22:57,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:22:57,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1468179764, now seen corresponding path program 1 times [2024-11-28 02:22:57,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:22:57,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122951224] [2024-11-28 02:22:57,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:22:57,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:22:57,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:22:57,848 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 02:22:57,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:22:57,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122951224] [2024-11-28 02:22:57,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122951224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:22:57,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:22:57,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:22:57,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673183022] [2024-11-28 02:22:57,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:22:57,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:22:57,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:22:57,882 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:22:57,883 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:22:57,886 INFO L87 Difference]: Start difference. First operand has 91 states, 70 states have (on average 1.3857142857142857) internal successors, (97), 78 states have internal predecessors, (97), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:22:57,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:22:57,939 INFO L93 Difference]: Finished difference Result 161 states and 216 transitions. [2024-11-28 02:22:57,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:22:57,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2024-11-28 02:22:57,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:22:57,954 INFO L225 Difference]: With dead ends: 161 [2024-11-28 02:22:57,955 INFO L226 Difference]: Without dead ends: 74 [2024-11-28 02:22:57,959 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 02:22:57,965 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 13 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 180 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 02:22:57,967 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 180 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:22:57,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-11-28 02:22:58,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2024-11-28 02:22:58,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 58 states have (on average 1.3275862068965518) internal successors, (77), 65 states have internal predecessors, (77), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 02:22:58,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 95 transitions. [2024-11-28 02:22:58,010 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 95 transitions. Word has length 32 [2024-11-28 02:22:58,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:22:58,011 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 95 transitions. [2024-11-28 02:22:58,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:22:58,011 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 95 transitions. [2024-11-28 02:22:58,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-28 02:22:58,014 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:22:58,014 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] [2024-11-28 02:22:58,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 02:22:58,014 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:22:58,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:22:58,015 INFO L85 PathProgramCache]: Analyzing trace with hash 899945921, now seen corresponding path program 1 times [2024-11-28 02:22:58,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:22:58,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675505987] [2024-11-28 02:22:58,016 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:22:58,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:22:58,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:22:58,258 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 02:22:58,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:22:58,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675505987] [2024-11-28 02:22:58,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675505987] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:22:58,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:22:58,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:22:58,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932974306] [2024-11-28 02:22:58,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:22:58,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:22:58,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:22:58,260 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:22:58,260 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:22:58,262 INFO L87 Difference]: Start difference. First operand 74 states and 95 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 02:22:58,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:22:58,328 INFO L93 Difference]: Finished difference Result 140 states and 183 transitions. [2024-11-28 02:22:58,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:22:58,328 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 37 [2024-11-28 02:22:58,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:22:58,330 INFO L225 Difference]: With dead ends: 140 [2024-11-28 02:22:58,330 INFO L226 Difference]: Without dead ends: 74 [2024-11-28 02:22:58,330 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 02:22:58,332 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 85 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 271 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 02:22:58,332 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 271 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:22:58,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-11-28 02:22:58,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2024-11-28 02:22:58,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 58 states have (on average 1.3103448275862069) internal successors, (76), 65 states have internal predecessors, (76), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 02:22:58,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 94 transitions. [2024-11-28 02:22:58,344 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 94 transitions. Word has length 37 [2024-11-28 02:22:58,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:22:58,345 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 94 transitions. [2024-11-28 02:22:58,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 02:22:58,346 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 94 transitions. [2024-11-28 02:22:58,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-28 02:22:58,347 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:22:58,347 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] [2024-11-28 02:22:58,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:22:58,347 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:22:58,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:22:58,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1254980723, now seen corresponding path program 1 times [2024-11-28 02:22:58,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:22:58,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160174501] [2024-11-28 02:22:58,348 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:22:58,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:22:58,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:22:58,440 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 02:22:58,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:22:58,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160174501] [2024-11-28 02:22:58,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160174501] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:22:58,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:22:58,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:22:58,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147529370] [2024-11-28 02:22:58,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:22:58,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:22:58,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:22:58,442 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:22:58,442 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:22:58,443 INFO L87 Difference]: Start difference. First operand 74 states and 94 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 02:22:58,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:22:58,531 INFO L93 Difference]: Finished difference Result 187 states and 244 transitions. [2024-11-28 02:22:58,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:22:58,532 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2024-11-28 02:22:58,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:22:58,533 INFO L225 Difference]: With dead ends: 187 [2024-11-28 02:22:58,534 INFO L226 Difference]: Without dead ends: 121 [2024-11-28 02:22:58,534 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 02:22:58,535 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 74 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:22:58,536 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 174 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:22:58,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-11-28 02:22:58,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 119. [2024-11-28 02:22:58,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 92 states have (on average 1.2934782608695652) internal successors, (119), 99 states have internal predecessors, (119), 14 states have call successors, (14), 12 states have call predecessors, (14), 12 states have return successors, (18), 14 states have call predecessors, (18), 14 states have call successors, (18) [2024-11-28 02:22:58,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 151 transitions. [2024-11-28 02:22:58,577 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 151 transitions. Word has length 45 [2024-11-28 02:22:58,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:22:58,578 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 151 transitions. [2024-11-28 02:22:58,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 02:22:58,578 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 151 transitions. [2024-11-28 02:22:58,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-28 02:22:58,579 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:22:58,582 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 02:22:58,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:22:58,582 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:22:58,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:22:58,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1313594968, now seen corresponding path program 1 times [2024-11-28 02:22:58,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:22:58,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979110985] [2024-11-28 02:22:58,583 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:22:58,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:22:58,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:22:58,737 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 02:22:58,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:22:58,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979110985] [2024-11-28 02:22:58,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979110985] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:22:58,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:22:58,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:22:58,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064151654] [2024-11-28 02:22:58,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:22:58,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:22:58,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:22:58,739 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:22:58,739 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:22:58,739 INFO L87 Difference]: Start difference. First operand 119 states and 151 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 02:22:58,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:22:58,818 INFO L93 Difference]: Finished difference Result 232 states and 305 transitions. [2024-11-28 02:22:58,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:22:58,819 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 51 [2024-11-28 02:22:58,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:22:58,821 INFO L225 Difference]: With dead ends: 232 [2024-11-28 02:22:58,821 INFO L226 Difference]: Without dead ends: 121 [2024-11-28 02:22:58,822 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 02:22:58,823 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 0 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:22:58,823 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 270 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:22:58,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-11-28 02:22:58,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2024-11-28 02:22:58,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 94 states have (on average 1.2872340425531914) internal successors, (121), 101 states have internal predecessors, (121), 14 states have call successors, (14), 12 states have call predecessors, (14), 12 states have return successors, (18), 14 states have call predecessors, (18), 14 states have call successors, (18) [2024-11-28 02:22:58,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 153 transitions. [2024-11-28 02:22:58,841 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 153 transitions. Word has length 51 [2024-11-28 02:22:58,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:22:58,841 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 153 transitions. [2024-11-28 02:22:58,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 02:22:58,842 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 153 transitions. [2024-11-28 02:22:58,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-28 02:22:58,843 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:22:58,843 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 02:22:58,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 02:22:58,844 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:22:58,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:22:58,844 INFO L85 PathProgramCache]: Analyzing trace with hash 375348774, now seen corresponding path program 1 times [2024-11-28 02:22:58,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:22:58,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349452262] [2024-11-28 02:22:58,845 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:22:58,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:22:58,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:22:58,993 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 02:22:58,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:22:58,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349452262] [2024-11-28 02:22:58,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349452262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:22:58,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:22:58,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:22:58,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396365539] [2024-11-28 02:22:58,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:22:58,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:22:58,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:22:58,998 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:22:58,998 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:22:58,998 INFO L87 Difference]: Start difference. First operand 121 states and 153 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 02:22:59,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:22:59,056 INFO L93 Difference]: Finished difference Result 237 states and 306 transitions. [2024-11-28 02:22:59,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:22:59,057 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 51 [2024-11-28 02:22:59,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:22:59,058 INFO L225 Difference]: With dead ends: 237 [2024-11-28 02:22:59,058 INFO L226 Difference]: Without dead ends: 124 [2024-11-28 02:22:59,059 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 02:22:59,060 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 0 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:22:59,060 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 358 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:22:59,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-11-28 02:22:59,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2024-11-28 02:22:59,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 97 states have (on average 1.2783505154639174) internal successors, (124), 104 states have internal predecessors, (124), 14 states have call successors, (14), 12 states have call predecessors, (14), 12 states have return successors, (18), 14 states have call predecessors, (18), 14 states have call successors, (18) [2024-11-28 02:22:59,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 156 transitions. [2024-11-28 02:22:59,087 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 156 transitions. Word has length 51 [2024-11-28 02:22:59,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:22:59,087 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 156 transitions. [2024-11-28 02:22:59,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 02:22:59,087 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 156 transitions. [2024-11-28 02:22:59,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-28 02:22:59,088 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:22:59,089 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 02:22:59,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 02:22:59,091 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:22:59,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:22:59,092 INFO L85 PathProgramCache]: Analyzing trace with hash -890893142, now seen corresponding path program 1 times [2024-11-28 02:22:59,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:22:59,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276519547] [2024-11-28 02:22:59,092 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:22:59,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:22:59,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:22:59,288 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 02:22:59,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:22:59,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276519547] [2024-11-28 02:22:59,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276519547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:22:59,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:22:59,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:22:59,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680041718] [2024-11-28 02:22:59,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:22:59,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:22:59,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:22:59,290 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:22:59,290 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:22:59,291 INFO L87 Difference]: Start difference. First operand 124 states and 156 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 02:22:59,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:22:59,470 INFO L93 Difference]: Finished difference Result 403 states and 525 transitions. [2024-11-28 02:22:59,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:22:59,472 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 51 [2024-11-28 02:22:59,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:22:59,478 INFO L225 Difference]: With dead ends: 403 [2024-11-28 02:22:59,478 INFO L226 Difference]: Without dead ends: 287 [2024-11-28 02:22:59,479 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 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 02:22:59,480 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 124 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:22:59,480 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 310 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:22:59,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2024-11-28 02:22:59,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 278. [2024-11-28 02:22:59,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 215 states have (on average 1.2651162790697674) internal successors, (272), 228 states have internal predecessors, (272), 33 states have call successors, (33), 28 states have call predecessors, (33), 29 states have return successors, (51), 34 states have call predecessors, (51), 33 states have call successors, (51) [2024-11-28 02:22:59,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 356 transitions. [2024-11-28 02:22:59,567 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 356 transitions. Word has length 51 [2024-11-28 02:22:59,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:22:59,567 INFO L471 AbstractCegarLoop]: Abstraction has 278 states and 356 transitions. [2024-11-28 02:22:59,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 02:22:59,567 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 356 transitions. [2024-11-28 02:22:59,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-28 02:22:59,569 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:22:59,569 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] [2024-11-28 02:22:59,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 02:22:59,569 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:22:59,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:22:59,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1355262390, now seen corresponding path program 1 times [2024-11-28 02:22:59,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:22:59,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073082969] [2024-11-28 02:22:59,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:22:59,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:22:59,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:22:59,755 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 02:22:59,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:22:59,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073082969] [2024-11-28 02:22:59,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073082969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:22:59,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:22:59,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 02:22:59,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830918548] [2024-11-28 02:22:59,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:22:59,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 02:22:59,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:22:59,759 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 02:22:59,759 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:22:59,760 INFO L87 Difference]: Start difference. First operand 278 states and 356 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 02:23:00,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:23:00,185 INFO L93 Difference]: Finished difference Result 580 states and 753 transitions. [2024-11-28 02:23:00,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 02:23:00,188 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 53 [2024-11-28 02:23:00,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:23:00,193 INFO L225 Difference]: With dead ends: 580 [2024-11-28 02:23:00,194 INFO L226 Difference]: Without dead ends: 310 [2024-11-28 02:23:00,195 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2024-11-28 02:23:00,196 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 124 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:23:00,196 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 381 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 02:23:00,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2024-11-28 02:23:00,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 308. [2024-11-28 02:23:00,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 238 states have (on average 1.2352941176470589) internal successors, (294), 251 states have internal predecessors, (294), 36 states have call successors, (36), 28 states have call predecessors, (36), 33 states have return successors, (61), 38 states have call predecessors, (61), 36 states have call successors, (61) [2024-11-28 02:23:00,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 391 transitions. [2024-11-28 02:23:00,255 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 391 transitions. Word has length 53 [2024-11-28 02:23:00,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:23:00,256 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 391 transitions. [2024-11-28 02:23:00,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 02:23:00,256 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 391 transitions. [2024-11-28 02:23:00,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-28 02:23:00,260 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:23:00,260 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:23:00,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 02:23:00,261 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:23:00,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:23:00,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1243817084, now seen corresponding path program 1 times [2024-11-28 02:23:00,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:23:00,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526501294] [2024-11-28 02:23:00,262 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:23:00,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:23:00,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:23:00,580 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 02:23:00,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:23:00,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526501294] [2024-11-28 02:23:00,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526501294] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:23:00,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:23:00,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 02:23:00,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765617706] [2024-11-28 02:23:00,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:23:00,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 02:23:00,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:23:00,584 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 02:23:00,584 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:23:00,584 INFO L87 Difference]: Start difference. First operand 308 states and 391 transitions. Second operand has 8 states, 8 states have (on average 5.5) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 02:23:01,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:23:01,234 INFO L93 Difference]: Finished difference Result 876 states and 1160 transitions. [2024-11-28 02:23:01,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 02:23:01,235 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 55 [2024-11-28 02:23:01,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:23:01,240 INFO L225 Difference]: With dead ends: 876 [2024-11-28 02:23:01,241 INFO L226 Difference]: Without dead ends: 626 [2024-11-28 02:23:01,243 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-11-28 02:23:01,244 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 318 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:23:01,244 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 541 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 02:23:01,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2024-11-28 02:23:01,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 554. [2024-11-28 02:23:01,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 424 states have (on average 1.221698113207547) internal successors, (518), 450 states have internal predecessors, (518), 67 states have call successors, (67), 50 states have call predecessors, (67), 62 states have return successors, (113), 71 states have call predecessors, (113), 67 states have call successors, (113) [2024-11-28 02:23:01,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 698 transitions. [2024-11-28 02:23:01,341 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 698 transitions. Word has length 55 [2024-11-28 02:23:01,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:23:01,342 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 698 transitions. [2024-11-28 02:23:01,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 02:23:01,342 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 698 transitions. [2024-11-28 02:23:01,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-28 02:23:01,348 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:23:01,348 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:23:01,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 02:23:01,349 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:23:01,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:23:01,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1058612768, now seen corresponding path program 1 times [2024-11-28 02:23:01,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:23:01,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975470802] [2024-11-28 02:23:01,350 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:23:01,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:23:01,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:23:01,679 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-28 02:23:01,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:23:01,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975470802] [2024-11-28 02:23:01,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975470802] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:23:01,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [132447303] [2024-11-28 02:23:01,679 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:23:01,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:23:01,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae8d5f3-6ec5-4645-b19a-a74242734a35/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:23:01,687 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae8d5f3-6ec5-4645-b19a-a74242734a35/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:23:01,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae8d5f3-6ec5-4645-b19a-a74242734a35/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:23:01,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:23:01,838 INFO L256 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 02:23:01,848 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:23:02,110 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 24 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:23:02,110 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:23:02,402 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-28 02:23:02,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [132447303] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:23:02,403 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:23:02,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 14 [2024-11-28 02:23:02,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315718445] [2024-11-28 02:23:02,403 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:23:02,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 02:23:02,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:23:02,405 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 02:23:02,406 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-28 02:23:02,406 INFO L87 Difference]: Start difference. First operand 554 states and 698 transitions. Second operand has 14 states, 14 states have (on average 9.0) internal successors, (126), 12 states have internal predecessors, (126), 5 states have call successors, (17), 4 states have call predecessors, (17), 7 states have return successors, (17), 8 states have call predecessors, (17), 5 states have call successors, (17) [2024-11-28 02:23:03,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:23:03,069 INFO L93 Difference]: Finished difference Result 1241 states and 1629 transitions. [2024-11-28 02:23:03,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 02:23:03,070 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.0) internal successors, (126), 12 states have internal predecessors, (126), 5 states have call successors, (17), 4 states have call predecessors, (17), 7 states have return successors, (17), 8 states have call predecessors, (17), 5 states have call successors, (17) Word has length 96 [2024-11-28 02:23:03,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:23:03,076 INFO L225 Difference]: With dead ends: 1241 [2024-11-28 02:23:03,076 INFO L226 Difference]: Without dead ends: 743 [2024-11-28 02:23:03,079 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 187 SyntacticMatches, 4 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=133, Invalid=517, Unknown=0, NotChecked=0, Total=650 [2024-11-28 02:23:03,080 INFO L435 NwaCegarLoop]: 209 mSDtfsCounter, 281 mSDsluCounter, 1287 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 1496 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:23:03,080 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 1496 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 02:23:03,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2024-11-28 02:23:03,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 641. [2024-11-28 02:23:03,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 484 states have (on average 1.2169421487603307) internal successors, (589), 519 states have internal predecessors, (589), 80 states have call successors, (80), 68 states have call predecessors, (80), 76 states have return successors, (116), 78 states have call predecessors, (116), 80 states have call successors, (116) [2024-11-28 02:23:03,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 785 transitions. [2024-11-28 02:23:03,193 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 785 transitions. Word has length 96 [2024-11-28 02:23:03,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:23:03,194 INFO L471 AbstractCegarLoop]: Abstraction has 641 states and 785 transitions. [2024-11-28 02:23:03,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.0) internal successors, (126), 12 states have internal predecessors, (126), 5 states have call successors, (17), 4 states have call predecessors, (17), 7 states have return successors, (17), 8 states have call predecessors, (17), 5 states have call successors, (17) [2024-11-28 02:23:03,194 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 785 transitions. [2024-11-28 02:23:03,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-28 02:23:03,198 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:23:03,198 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:23:03,209 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae8d5f3-6ec5-4645-b19a-a74242734a35/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 02:23:03,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae8d5f3-6ec5-4645-b19a-a74242734a35/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:23:03,399 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:23:03,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:23:03,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1371761174, now seen corresponding path program 1 times [2024-11-28 02:23:03,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:23:03,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585233197] [2024-11-28 02:23:03,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:23:03,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:23:03,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:23:03,592 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2024-11-28 02:23:03,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:23:03,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585233197] [2024-11-28 02:23:03,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585233197] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:23:03,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:23:03,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:23:03,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61211840] [2024-11-28 02:23:03,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:23:03,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:23:03,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:23:03,594 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:23:03,595 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:23:03,596 INFO L87 Difference]: Start difference. First operand 641 states and 785 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-28 02:23:03,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:23:03,712 INFO L93 Difference]: Finished difference Result 1235 states and 1529 transitions. [2024-11-28 02:23:03,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:23:03,713 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 172 [2024-11-28 02:23:03,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:23:03,720 INFO L225 Difference]: With dead ends: 1235 [2024-11-28 02:23:03,720 INFO L226 Difference]: Without dead ends: 650 [2024-11-28 02:23:03,722 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 02:23:03,723 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 0 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:23:03,724 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 357 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:23:03,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2024-11-28 02:23:03,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 650. [2024-11-28 02:23:03,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 493 states have (on average 1.2129817444219066) internal successors, (598), 528 states have internal predecessors, (598), 80 states have call successors, (80), 68 states have call predecessors, (80), 76 states have return successors, (116), 78 states have call predecessors, (116), 80 states have call successors, (116) [2024-11-28 02:23:03,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 794 transitions. [2024-11-28 02:23:03,819 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 794 transitions. Word has length 172 [2024-11-28 02:23:03,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:23:03,820 INFO L471 AbstractCegarLoop]: Abstraction has 650 states and 794 transitions. [2024-11-28 02:23:03,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-28 02:23:03,820 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 794 transitions. [2024-11-28 02:23:03,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-28 02:23:03,828 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:23:03,828 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:23:03,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 02:23:03,828 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:23:03,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:23:03,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1342547472, now seen corresponding path program 1 times [2024-11-28 02:23:03,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:23:03,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697123157] [2024-11-28 02:23:03,829 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:23:03,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:23:03,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:23:04,319 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 88 proven. 31 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-11-28 02:23:04,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:23:04,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697123157] [2024-11-28 02:23:04,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697123157] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:23:04,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118967475] [2024-11-28 02:23:04,321 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:23:04,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:23:04,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae8d5f3-6ec5-4645-b19a-a74242734a35/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:23:04,323 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae8d5f3-6ec5-4645-b19a-a74242734a35/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:23:04,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae8d5f3-6ec5-4645-b19a-a74242734a35/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 02:23:04,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:23:04,506 INFO L256 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 02:23:04,516 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:23:04,807 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 136 proven. 3 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-28 02:23:04,808 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:23:05,519 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 77 proven. 40 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-28 02:23:05,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1118967475] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:23:05,520 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:23:05,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 11] total 25 [2024-11-28 02:23:05,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730335744] [2024-11-28 02:23:05,520 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:23:05,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-28 02:23:05,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:23:05,526 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-28 02:23:05,526 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=449, Unknown=0, NotChecked=0, Total=600 [2024-11-28 02:23:05,527 INFO L87 Difference]: Start difference. First operand 650 states and 794 transitions. Second operand has 25 states, 25 states have (on average 8.48) internal successors, (212), 24 states have internal predecessors, (212), 11 states have call successors, (26), 6 states have call predecessors, (26), 10 states have return successors, (28), 10 states have call predecessors, (28), 11 states have call successors, (28) [2024-11-28 02:23:06,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:23:06,468 INFO L93 Difference]: Finished difference Result 1426 states and 1809 transitions. [2024-11-28 02:23:06,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 02:23:06,470 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 8.48) internal successors, (212), 24 states have internal predecessors, (212), 11 states have call successors, (26), 6 states have call predecessors, (26), 10 states have return successors, (28), 10 states have call predecessors, (28), 11 states have call successors, (28) Word has length 168 [2024-11-28 02:23:06,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:23:06,476 INFO L225 Difference]: With dead ends: 1426 [2024-11-28 02:23:06,476 INFO L226 Difference]: Without dead ends: 784 [2024-11-28 02:23:06,480 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 323 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=275, Invalid=847, Unknown=0, NotChecked=0, Total=1122 [2024-11-28 02:23:06,481 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 470 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 473 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:23:06,481 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [473 Valid, 711 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 02:23:06,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2024-11-28 02:23:06,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 711. [2024-11-28 02:23:06,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 541 states have (on average 1.188539741219963) internal successors, (643), 573 states have internal predecessors, (643), 91 states have call successors, (91), 79 states have call predecessors, (91), 78 states have return successors, (114), 81 states have call predecessors, (114), 91 states have call successors, (114) [2024-11-28 02:23:06,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 848 transitions. [2024-11-28 02:23:06,591 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 848 transitions. Word has length 168 [2024-11-28 02:23:06,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:23:06,592 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 848 transitions. [2024-11-28 02:23:06,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 8.48) internal successors, (212), 24 states have internal predecessors, (212), 11 states have call successors, (26), 6 states have call predecessors, (26), 10 states have return successors, (28), 10 states have call predecessors, (28), 11 states have call successors, (28) [2024-11-28 02:23:06,592 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 848 transitions. [2024-11-28 02:23:06,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-28 02:23:06,597 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:23:06,598 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:23:06,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae8d5f3-6ec5-4645-b19a-a74242734a35/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 02:23:06,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae8d5f3-6ec5-4645-b19a-a74242734a35/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-28 02:23:06,798 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:23:06,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:23:06,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1086838688, now seen corresponding path program 1 times [2024-11-28 02:23:06,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:23:06,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136304973] [2024-11-28 02:23:06,800 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:23:06,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:23:06,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:23:07,169 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 99 proven. 55 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-28 02:23:07,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:23:07,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136304973] [2024-11-28 02:23:07,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136304973] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:23:07,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1794088477] [2024-11-28 02:23:07,169 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:23:07,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:23:07,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae8d5f3-6ec5-4645-b19a-a74242734a35/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:23:07,172 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae8d5f3-6ec5-4645-b19a-a74242734a35/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:23:07,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae8d5f3-6ec5-4645-b19a-a74242734a35/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 02:23:07,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:23:07,332 INFO L256 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 02:23:07,338 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:23:07,592 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 177 proven. 9 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-28 02:23:07,592 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:23:08,195 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 99 proven. 55 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-28 02:23:08,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1794088477] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:23:08,195 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:23:08,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 22 [2024-11-28 02:23:08,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75463920] [2024-11-28 02:23:08,196 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:23:08,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-28 02:23:08,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:23:08,198 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-28 02:23:08,198 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=389, Unknown=0, NotChecked=0, Total=462 [2024-11-28 02:23:08,198 INFO L87 Difference]: Start difference. First operand 711 states and 848 transitions. Second operand has 22 states, 22 states have (on average 10.0) internal successors, (220), 19 states have internal predecessors, (220), 7 states have call successors, (30), 5 states have call predecessors, (30), 13 states have return successors, (32), 11 states have call predecessors, (32), 7 states have call successors, (32) [2024-11-28 02:23:09,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:23:09,135 INFO L93 Difference]: Finished difference Result 1399 states and 1691 transitions. [2024-11-28 02:23:09,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 02:23:09,136 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 10.0) internal successors, (220), 19 states have internal predecessors, (220), 7 states have call successors, (30), 5 states have call predecessors, (30), 13 states have return successors, (32), 11 states have call predecessors, (32), 7 states have call successors, (32) Word has length 184 [2024-11-28 02:23:09,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:23:09,143 INFO L225 Difference]: With dead ends: 1399 [2024-11-28 02:23:09,143 INFO L226 Difference]: Without dead ends: 744 [2024-11-28 02:23:09,146 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 397 GetRequests, 362 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=225, Invalid=1035, Unknown=0, NotChecked=0, Total=1260 [2024-11-28 02:23:09,147 INFO L435 NwaCegarLoop]: 106 mSDtfsCounter, 241 mSDsluCounter, 1060 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 1166 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:23:09,148 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 1166 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 780 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 02:23:09,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2024-11-28 02:23:09,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 726. [2024-11-28 02:23:09,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 726 states, 551 states have (on average 1.177858439201452) internal successors, (649), 583 states have internal predecessors, (649), 91 states have call successors, (91), 84 states have call predecessors, (91), 83 states have return successors, (114), 81 states have call predecessors, (114), 91 states have call successors, (114) [2024-11-28 02:23:09,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 854 transitions. [2024-11-28 02:23:09,234 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 854 transitions. Word has length 184 [2024-11-28 02:23:09,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:23:09,235 INFO L471 AbstractCegarLoop]: Abstraction has 726 states and 854 transitions. [2024-11-28 02:23:09,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 10.0) internal successors, (220), 19 states have internal predecessors, (220), 7 states have call successors, (30), 5 states have call predecessors, (30), 13 states have return successors, (32), 11 states have call predecessors, (32), 7 states have call successors, (32) [2024-11-28 02:23:09,236 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 854 transitions. [2024-11-28 02:23:09,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-11-28 02:23:09,240 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:23:09,240 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:23:09,251 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae8d5f3-6ec5-4645-b19a-a74242734a35/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 02:23:09,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae8d5f3-6ec5-4645-b19a-a74242734a35/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-28 02:23:09,441 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:23:09,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:23:09,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1681838399, now seen corresponding path program 1 times [2024-11-28 02:23:09,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:23:09,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363922818] [2024-11-28 02:23:09,442 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:23:09,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:23:09,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:23:10,209 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 90 proven. 59 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 02:23:10,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:23:10,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363922818] [2024-11-28 02:23:10,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363922818] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:23:10,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [787193962] [2024-11-28 02:23:10,211 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:23:10,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:23:10,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae8d5f3-6ec5-4645-b19a-a74242734a35/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:23:10,214 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae8d5f3-6ec5-4645-b19a-a74242734a35/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:23:10,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae8d5f3-6ec5-4645-b19a-a74242734a35/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 02:23:10,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:23:10,375 INFO L256 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 02:23:10,381 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:23:10,705 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 122 proven. 25 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-11-28 02:23:10,705 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:23:11,582 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 95 proven. 46 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-11-28 02:23:11,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [787193962] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:23:11,583 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:23:11,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 8, 13] total 22 [2024-11-28 02:23:11,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694102670] [2024-11-28 02:23:11,583 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:23:11,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-28 02:23:11,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:23:11,586 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-28 02:23:11,586 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=341, Unknown=0, NotChecked=0, Total=462 [2024-11-28 02:23:11,587 INFO L87 Difference]: Start difference. First operand 726 states and 854 transitions. Second operand has 22 states, 22 states have (on average 10.727272727272727) internal successors, (236), 21 states have internal predecessors, (236), 14 states have call successors, (36), 8 states have call predecessors, (36), 14 states have return successors, (35), 14 states have call predecessors, (35), 14 states have call successors, (35) [2024-11-28 02:23:12,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:23:12,630 INFO L93 Difference]: Finished difference Result 1402 states and 1677 transitions. [2024-11-28 02:23:12,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-28 02:23:12,631 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 10.727272727272727) internal successors, (236), 21 states have internal predecessors, (236), 14 states have call successors, (36), 8 states have call predecessors, (36), 14 states have return successors, (35), 14 states have call predecessors, (35), 14 states have call successors, (35) Word has length 185 [2024-11-28 02:23:12,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:23:12,639 INFO L225 Difference]: With dead ends: 1402 [2024-11-28 02:23:12,639 INFO L226 Difference]: Without dead ends: 962 [2024-11-28 02:23:12,642 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 365 SyntacticMatches, 8 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=404, Invalid=1002, Unknown=0, NotChecked=0, Total=1406 [2024-11-28 02:23:12,642 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 512 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 832 SdHoareTripleChecker+Invalid, 906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 02:23:12,643 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 832 Invalid, 906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 02:23:12,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2024-11-28 02:23:12,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 892. [2024-11-28 02:23:12,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 892 states, 678 states have (on average 1.176991150442478) internal successors, (798), 715 states have internal predecessors, (798), 112 states have call successors, (112), 103 states have call predecessors, (112), 101 states have return successors, (137), 101 states have call predecessors, (137), 112 states have call successors, (137) [2024-11-28 02:23:12,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 892 states to 892 states and 1047 transitions. [2024-11-28 02:23:12,749 INFO L78 Accepts]: Start accepts. Automaton has 892 states and 1047 transitions. Word has length 185 [2024-11-28 02:23:12,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:23:12,750 INFO L471 AbstractCegarLoop]: Abstraction has 892 states and 1047 transitions. [2024-11-28 02:23:12,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 10.727272727272727) internal successors, (236), 21 states have internal predecessors, (236), 14 states have call successors, (36), 8 states have call predecessors, (36), 14 states have return successors, (35), 14 states have call predecessors, (35), 14 states have call successors, (35) [2024-11-28 02:23:12,750 INFO L276 IsEmpty]: Start isEmpty. Operand 892 states and 1047 transitions. [2024-11-28 02:23:12,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2024-11-28 02:23:12,755 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:23:12,756 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:23:12,768 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae8d5f3-6ec5-4645-b19a-a74242734a35/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 02:23:12,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae8d5f3-6ec5-4645-b19a-a74242734a35/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-28 02:23:12,960 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:23:12,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:23:12,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1806528254, now seen corresponding path program 1 times [2024-11-28 02:23:12,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:23:12,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919421576] [2024-11-28 02:23:12,961 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:23:12,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:23:13,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:23:13,880 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 148 proven. 76 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2024-11-28 02:23:13,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:23:13,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919421576] [2024-11-28 02:23:13,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919421576] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:23:13,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [961266193] [2024-11-28 02:23:13,881 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:23:13,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:23:13,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae8d5f3-6ec5-4645-b19a-a74242734a35/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:23:13,884 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae8d5f3-6ec5-4645-b19a-a74242734a35/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:23:13,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae8d5f3-6ec5-4645-b19a-a74242734a35/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 02:23:14,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:23:14,070 INFO L256 TraceCheckSpWp]: Trace formula consists of 671 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-28 02:23:14,078 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:23:14,536 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 138 proven. 89 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2024-11-28 02:23:14,537 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:23:15,564 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 91 proven. 138 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2024-11-28 02:23:15,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [961266193] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:23:15,564 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:23:15,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 16] total 27 [2024-11-28 02:23:15,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731784662] [2024-11-28 02:23:15,565 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:23:15,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-28 02:23:15,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:23:15,567 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-28 02:23:15,568 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=548, Unknown=0, NotChecked=0, Total=702 [2024-11-28 02:23:15,568 INFO L87 Difference]: Start difference. First operand 892 states and 1047 transitions. Second operand has 27 states, 27 states have (on average 10.814814814814815) internal successors, (292), 26 states have internal predecessors, (292), 15 states have call successors, (46), 8 states have call predecessors, (46), 16 states have return successors, (48), 15 states have call predecessors, (48), 15 states have call successors, (48) [2024-11-28 02:23:17,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:23:17,158 INFO L93 Difference]: Finished difference Result 1852 states and 2211 transitions. [2024-11-28 02:23:17,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-28 02:23:17,159 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 10.814814814814815) internal successors, (292), 26 states have internal predecessors, (292), 15 states have call successors, (46), 8 states have call predecessors, (46), 16 states have return successors, (48), 15 states have call predecessors, (48), 15 states have call successors, (48) Word has length 235 [2024-11-28 02:23:17,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:23:17,161 INFO L225 Difference]: With dead ends: 1852 [2024-11-28 02:23:17,163 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 02:23:17,169 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 523 GetRequests, 458 SyntacticMatches, 9 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 800 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=775, Invalid=2531, Unknown=0, NotChecked=0, Total=3306 [2024-11-28 02:23:17,170 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 481 mSDsluCounter, 1160 mSDsCounter, 0 mSdLazyCounter, 1265 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 1315 SdHoareTripleChecker+Invalid, 1437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 1265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 02:23:17,170 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 1315 Invalid, 1437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 1265 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 02:23:17,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 02:23:17,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 02:23:17,171 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 02:23:17,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 02:23:17,172 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 235 [2024-11-28 02:23:17,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:23:17,173 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 02:23:17,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 10.814814814814815) internal successors, (292), 26 states have internal predecessors, (292), 15 states have call successors, (46), 8 states have call predecessors, (46), 16 states have return successors, (48), 15 states have call predecessors, (48), 15 states have call successors, (48) [2024-11-28 02:23:17,173 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 02:23:17,174 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 02:23:17,177 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 02:23:17,186 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae8d5f3-6ec5-4645-b19a-a74242734a35/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 02:23:17,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae8d5f3-6ec5-4645-b19a-a74242734a35/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-28 02:23:17,385 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:23:17,387 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 02:23:25,776 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 02:23:25,789 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:23:25 BoogieIcfgContainer [2024-11-28 02:23:25,789 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 02:23:25,790 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 02:23:25,790 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 02:23:25,791 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 02:23:25,791 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:22:57" (3/4) ... [2024-11-28 02:23:25,793 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 02:23:25,799 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-28 02:23:25,799 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-28 02:23:25,799 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-28 02:23:25,799 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-28 02:23:25,800 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-11-28 02:23:25,800 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-28 02:23:25,800 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2024-11-28 02:23:25,805 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2024-11-28 02:23:25,806 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-28 02:23:25,806 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-28 02:23:25,806 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 02:23:25,807 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 02:23:25,903 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae8d5f3-6ec5-4645-b19a-a74242734a35/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 02:23:25,903 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae8d5f3-6ec5-4645-b19a-a74242734a35/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 02:23:25,903 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 02:23:25,904 INFO L158 Benchmark]: Toolchain (without parser) took 29954.65ms. Allocated memory was 117.4MB in the beginning and 268.4MB in the end (delta: 151.0MB). Free memory was 91.6MB in the beginning and 226.3MB in the end (delta: -134.7MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. [2024-11-28 02:23:25,905 INFO L158 Benchmark]: CDTParser took 0.45ms. Allocated memory is still 117.4MB. Free memory was 72.8MB in the beginning and 72.6MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:23:25,905 INFO L158 Benchmark]: CACSL2BoogieTranslator took 660.10ms. Allocated memory is still 117.4MB. Free memory was 91.6MB in the beginning and 72.6MB in the end (delta: 19.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 02:23:25,905 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.74ms. Allocated memory is still 117.4MB. Free memory was 72.6MB in the beginning and 70.4MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:23:25,905 INFO L158 Benchmark]: Boogie Preprocessor took 54.05ms. Allocated memory is still 117.4MB. Free memory was 70.4MB in the beginning and 68.5MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:23:25,906 INFO L158 Benchmark]: RCFGBuilder took 614.24ms. Allocated memory is still 117.4MB. Free memory was 68.5MB in the beginning and 52.0MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 02:23:25,906 INFO L158 Benchmark]: TraceAbstraction took 28458.34ms. Allocated memory was 117.4MB in the beginning and 268.4MB in the end (delta: 151.0MB). Free memory was 51.5MB in the beginning and 234.5MB in the end (delta: -183.0MB). Peak memory consumption was 120.8MB. Max. memory is 16.1GB. [2024-11-28 02:23:25,906 INFO L158 Benchmark]: Witness Printer took 113.32ms. Allocated memory is still 268.4MB. Free memory was 234.5MB in the beginning and 226.3MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:23:25,909 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45ms. Allocated memory is still 117.4MB. Free memory was 72.8MB in the beginning and 72.6MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 660.10ms. Allocated memory is still 117.4MB. Free memory was 91.6MB in the beginning and 72.6MB in the end (delta: 19.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.74ms. Allocated memory is still 117.4MB. Free memory was 72.6MB in the beginning and 70.4MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.05ms. Allocated memory is still 117.4MB. Free memory was 70.4MB in the beginning and 68.5MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 614.24ms. Allocated memory is still 117.4MB. Free memory was 68.5MB in the beginning and 52.0MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 28458.34ms. Allocated memory was 117.4MB in the beginning and 268.4MB in the end (delta: 151.0MB). Free memory was 51.5MB in the beginning and 234.5MB in the end (delta: -183.0MB). Peak memory consumption was 120.8MB. Max. memory is 16.1GB. * Witness Printer took 113.32ms. Allocated memory is still 268.4MB. Free memory was 234.5MB in the beginning and 226.3MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. 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,"wsllib_check.i","") [49] - GenericResultAtLocation [Line: 58]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [58] - GenericResultAtLocation [Line: 279]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [279] - GenericResultAtLocation [Line: 349]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [349] - GenericResultAtLocation [Line: 453]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [453] - GenericResultAtLocation [Line: 819]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [819] - GenericResultAtLocation [Line: 868]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [868] - GenericResultAtLocation [Line: 906]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [906] * 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: 54]: 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 8 procedures, 91 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 20.0s, OverallIterations: 14, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 7.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2760 SdHoareTripleChecker+Valid, 4.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2723 mSDsluCounter, 8362 SdHoareTripleChecker+Invalid, 3.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6689 mSDsCounter, 755 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4243 IncrementalHoareTripleChecker+Invalid, 4998 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 755 mSolverCounterUnsat, 1673 mSDtfsCounter, 4243 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1968 GetRequests, 1721 SyntacticMatches, 25 SemanticMatches, 222 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1753 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=892occurred in iteration=13, InterpolantAutomatonStates: 161, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 14 MinimizatonAttempts, 348 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 9.3s InterpolantComputationTime, 2283 NumberOfCodeBlocks, 2283 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 3127 ConstructedInterpolants, 0 QuantifiedInterpolants, 7504 SizeOfPredicates, 5 NumberOfNonLiveVariables, 2594 ConjunctsInSsa, 79 ConjunctsInUnsatCore, 24 InterpolantComputations, 9 PerfectInterpolantSequences, 2851/3502 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: 918]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 293]: Loop Invariant Derived loop invariant: ((((((((pumpRunning == 0) && (splverifierCounter == 0)) && (waterLevel <= 0)) && (0 != systemActive)) || ((((pumpRunning == 0) && (splverifierCounter == 0)) && (waterLevel == 1)) && (0 != systemActive))) || (((((waterLevel <= 1) && (splverifierCounter == 0)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive)) && (pumpRunning == 1))) || ((((pumpRunning == 0) && (2 == waterLevel)) && (splverifierCounter == 0)) && (0 != systemActive))) || ((((2 == waterLevel) && (splverifierCounter == 0)) && (0 != systemActive)) && (pumpRunning == 1))) - InvariantResult [Line: 292]: Location Invariant Derived location invariant: 0 RESULT: Ultimate proved your program to be correct! [2024-11-28 02:23:25,934 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae8d5f3-6ec5-4645-b19a-a74242734a35/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