./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product53.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7358f044-4ec8-4aeb-8b3b-f145ce948a17/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7358f044-4ec8-4aeb-8b3b-f145ce948a17/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7358f044-4ec8-4aeb-8b3b-f145ce948a17/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7358f044-4ec8-4aeb-8b3b-f145ce948a17/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product53.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7358f044-4ec8-4aeb-8b3b-f145ce948a17/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7358f044-4ec8-4aeb-8b3b-f145ce948a17/bin/uautomizer-verify-LYvppIcaGC --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 e91d5c860cfea17112af53939b2fffb1e4c536355098377ab18c754994d1bc2b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:04:03,106 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:04:03,195 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7358f044-4ec8-4aeb-8b3b-f145ce948a17/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 01:04:03,201 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:04:03,202 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:04:03,228 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:04:03,229 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:04:03,229 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:04:03,230 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:04:03,230 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:04:03,230 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:04:03,230 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:04:03,231 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:04:03,231 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:04:03,231 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:04:03,231 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:04:03,231 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:04:03,231 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:04:03,231 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:04:03,232 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:04:03,232 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:04:03,232 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:04:03,232 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:04:03,232 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:04:03,232 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:04:03,232 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:04:03,232 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:04:03,233 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:04:03,233 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:04:03,233 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:04:03,234 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:04:03,234 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:04:03,234 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:04:03,234 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:04:03,234 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:04:03,234 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:04:03,235 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:04:03,235 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:04:03,235 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:04:03,235 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:04:03,235 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:04:03,236 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:04:03,236 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:04:03,236 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:04:03,236 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:04:03,236 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:04:03,236 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:04:03,236 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:04:03,237 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_7358f044-4ec8-4aeb-8b3b-f145ce948a17/bin/uautomizer-verify-LYvppIcaGC 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 -> e91d5c860cfea17112af53939b2fffb1e4c536355098377ab18c754994d1bc2b [2024-11-24 01:04:03,643 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:04:03,656 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:04:03,659 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:04:03,660 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:04:03,661 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:04:03,662 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7358f044-4ec8-4aeb-8b3b-f145ce948a17/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/product-lines/minepump_spec4_product53.cil.c [2024-11-24 01:04:07,001 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7358f044-4ec8-4aeb-8b3b-f145ce948a17/bin/uautomizer-verify-LYvppIcaGC/data/9f84e2992/5e5b858f8835426e982a848b4b5f78b0/FLAG745e9b52c [2024-11-24 01:04:07,455 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:04:07,455 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7358f044-4ec8-4aeb-8b3b-f145ce948a17/sv-benchmarks/c/product-lines/minepump_spec4_product53.cil.c [2024-11-24 01:04:07,469 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7358f044-4ec8-4aeb-8b3b-f145ce948a17/bin/uautomizer-verify-LYvppIcaGC/data/9f84e2992/5e5b858f8835426e982a848b4b5f78b0/FLAG745e9b52c [2024-11-24 01:04:07,491 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7358f044-4ec8-4aeb-8b3b-f145ce948a17/bin/uautomizer-verify-LYvppIcaGC/data/9f84e2992/5e5b858f8835426e982a848b4b5f78b0 [2024-11-24 01:04:07,494 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:04:07,496 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:04:07,498 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:04:07,498 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:04:07,503 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:04:07,504 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:04:07" (1/1) ... [2024-11-24 01:04:07,506 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@534dcaa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:04:07, skipping insertion in model container [2024-11-24 01:04:07,506 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:04:07" (1/1) ... [2024-11-24 01:04:07,548 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:04:07,856 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_7358f044-4ec8-4aeb-8b3b-f145ce948a17/sv-benchmarks/c/product-lines/minepump_spec4_product53.cil.c[15987,16000] [2024-11-24 01:04:07,876 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:04:07,889 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:04:07,900 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] [2024-11-24 01:04:07,902 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [415] [2024-11-24 01:04:07,902 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [484] [2024-11-24 01:04:07,902 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [717] [2024-11-24 01:04:07,903 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [755] [2024-11-24 01:04:07,903 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [764] [2024-11-24 01:04:07,903 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [868] [2024-11-24 01:04:07,903 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [894] [2024-11-24 01:04:08,014 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7358f044-4ec8-4aeb-8b3b-f145ce948a17/sv-benchmarks/c/product-lines/minepump_spec4_product53.cil.c[15987,16000] [2024-11-24 01:04:08,032 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:04:08,064 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:04:08,065 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:04:08 WrapperNode [2024-11-24 01:04:08,066 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:04:08,068 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:04:08,068 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:04:08,068 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:04:08,074 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:04:08" (1/1) ... [2024-11-24 01:04:08,085 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:04:08" (1/1) ... [2024-11-24 01:04:08,112 INFO L138 Inliner]: procedures = 56, calls = 102, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 227 [2024-11-24 01:04:08,112 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:04:08,113 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:04:08,113 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:04:08,113 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:04:08,125 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:04:08" (1/1) ... [2024-11-24 01:04:08,125 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:04:08" (1/1) ... [2024-11-24 01:04:08,127 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:04:08" (1/1) ... [2024-11-24 01:04:08,144 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]. [2024-11-24 01:04:08,144 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:04:08" (1/1) ... [2024-11-24 01:04:08,144 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:04:08" (1/1) ... [2024-11-24 01:04:08,150 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:04:08" (1/1) ... [2024-11-24 01:04:08,151 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:04:08" (1/1) ... [2024-11-24 01:04:08,156 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:04:08" (1/1) ... [2024-11-24 01:04:08,158 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:04:08" (1/1) ... [2024-11-24 01:04:08,159 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:04:08" (1/1) ... [2024-11-24 01:04:08,162 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:04:08,163 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:04:08,164 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:04:08,164 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:04:08,165 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:04:08" (1/1) ... [2024-11-24 01:04:08,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:04:08,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7358f044-4ec8-4aeb-8b3b-f145ce948a17/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:04:08,205 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7358f044-4ec8-4aeb-8b3b-f145ce948a17/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:04:08,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7358f044-4ec8-4aeb-8b3b-f145ce948a17/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:04:08,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:04:08,253 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-24 01:04:08,253 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-24 01:04:08,253 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-24 01:04:08,253 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-24 01:04:08,253 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-24 01:04:08,253 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-24 01:04:08,254 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-11-24 01:04:08,254 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-11-24 01:04:08,254 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-24 01:04:08,254 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-24 01:04:08,254 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2024-11-24 01:04:08,254 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2024-11-24 01:04:08,254 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-11-24 01:04:08,254 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-11-24 01:04:08,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:04:08,254 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-24 01:04:08,255 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-24 01:04:08,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:04:08,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:04:08,334 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:04:08,336 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:04:08,687 INFO L? ?]: Removed 52 outVars from TransFormulas that were not future-live. [2024-11-24 01:04:08,687 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:04:08,705 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:04:08,705 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-24 01:04:08,705 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:04:08 BoogieIcfgContainer [2024-11-24 01:04:08,706 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:04:08,708 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:04:08,709 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:04:08,715 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:04:08,715 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:04:07" (1/3) ... [2024-11-24 01:04:08,716 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@165e6cbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:04:08, skipping insertion in model container [2024-11-24 01:04:08,717 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:04:08" (2/3) ... [2024-11-24 01:04:08,718 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@165e6cbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:04:08, skipping insertion in model container [2024-11-24 01:04:08,719 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:04:08" (3/3) ... [2024-11-24 01:04:08,720 INFO L128 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product53.cil.c [2024-11-24 01:04:08,741 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:04:08,743 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG minepump_spec4_product53.cil.c that has 9 procedures, 93 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-11-24 01:04:08,811 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:04:08,827 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;@171d8a43, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:04:08,828 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 01:04:08,833 INFO L276 IsEmpty]: Start isEmpty. Operand has 93 states, 69 states have (on average 1.4057971014492754) internal successors, (97), 79 states have internal predecessors, (97), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 9 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-24 01:04:08,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-24 01:04:08,842 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:04:08,843 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:04:08,843 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:04:08,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:04:08,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1407994042, now seen corresponding path program 1 times [2024-11-24 01:04:08,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:04:08,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24497204] [2024-11-24 01:04:08,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:04:08,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:04:09,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:04:09,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:04:09,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:04:09,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24497204] [2024-11-24 01:04:09,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24497204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:04:09,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:04:09,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 01:04:09,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109016073] [2024-11-24 01:04:09,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:04:09,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 01:04:09,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:04:09,153 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 01:04:09,153 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:04:09,156 INFO L87 Difference]: Start difference. First operand has 93 states, 69 states have (on average 1.4057971014492754) internal successors, (97), 79 states have internal predecessors, (97), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 9 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:04:09,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:04:09,193 INFO L93 Difference]: Finished difference Result 178 states and 245 transitions. [2024-11-24 01:04:09,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 01:04:09,196 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-11-24 01:04:09,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:04:09,207 INFO L225 Difference]: With dead ends: 178 [2024-11-24 01:04:09,207 INFO L226 Difference]: Without dead ends: 84 [2024-11-24 01:04:09,212 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:04:09,215 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:04:09,216 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:04:09,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-11-24 01:04:09,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2024-11-24 01:04:09,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 62 states have (on average 1.3387096774193548) internal successors, (83), 71 states have internal predecessors, (83), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 8 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-24 01:04:09,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 110 transitions. [2024-11-24 01:04:09,276 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 110 transitions. Word has length 19 [2024-11-24 01:04:09,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:04:09,277 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 110 transitions. [2024-11-24 01:04:09,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:04:09,277 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 110 transitions. [2024-11-24 01:04:09,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-24 01:04:09,279 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:04:09,279 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:04:09,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 01:04:09,282 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:04:09,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:04:09,282 INFO L85 PathProgramCache]: Analyzing trace with hash -2112476940, now seen corresponding path program 1 times [2024-11-24 01:04:09,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:04:09,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559784839] [2024-11-24 01:04:09,283 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:04:09,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:04:09,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:04:09,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:04:09,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:04:09,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559784839] [2024-11-24 01:04:09,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559784839] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:04:09,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:04:09,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:04:09,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863076603] [2024-11-24 01:04:09,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:04:09,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:04:09,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:04:09,479 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:04:09,479 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:04:09,480 INFO L87 Difference]: Start difference. First operand 84 states and 110 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:04:09,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:04:09,521 INFO L93 Difference]: Finished difference Result 136 states and 178 transitions. [2024-11-24 01:04:09,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:04:09,522 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-11-24 01:04:09,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:04:09,525 INFO L225 Difference]: With dead ends: 136 [2024-11-24 01:04:09,526 INFO L226 Difference]: Without dead ends: 76 [2024-11-24 01:04:09,527 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 [2024-11-24 01:04:09,528 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 12 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 181 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 [2024-11-24 01:04:09,529 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 181 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:04:09,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-11-24 01:04:09,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2024-11-24 01:04:09,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 57 states have (on average 1.3508771929824561) internal successors, (77), 66 states have internal predecessors, (77), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 6 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-24 01:04:09,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 99 transitions. [2024-11-24 01:04:09,542 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 99 transitions. Word has length 19 [2024-11-24 01:04:09,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:04:09,543 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 99 transitions. [2024-11-24 01:04:09,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:04:09,543 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 99 transitions. [2024-11-24 01:04:09,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-24 01:04:09,545 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:04:09,545 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:04:09,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 01:04:09,545 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:04:09,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:04:09,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1845687010, now seen corresponding path program 1 times [2024-11-24 01:04:09,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:04:09,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032669810] [2024-11-24 01:04:09,547 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:04:09,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:04:09,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:04:09,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:04:09,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:04:09,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032669810] [2024-11-24 01:04:09,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032669810] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:04:09,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:04:09,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 01:04:09,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710857183] [2024-11-24 01:04:09,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:04:09,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:04:09,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:04:09,693 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:04:09,693 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:04:09,694 INFO L87 Difference]: Start difference. First operand 76 states and 99 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:04:09,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:04:09,725 INFO L93 Difference]: Finished difference Result 145 states and 192 transitions. [2024-11-24 01:04:09,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:04:09,729 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2024-11-24 01:04:09,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:04:09,731 INFO L225 Difference]: With dead ends: 145 [2024-11-24 01:04:09,731 INFO L226 Difference]: Without dead ends: 76 [2024-11-24 01:04:09,732 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:04:09,732 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 82 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 97 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 [2024-11-24 01:04:09,736 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 97 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:04:09,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-11-24 01:04:09,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2024-11-24 01:04:09,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 57 states have (on average 1.3333333333333333) internal successors, (76), 66 states have internal predecessors, (76), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 6 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-24 01:04:09,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 98 transitions. [2024-11-24 01:04:09,759 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 98 transitions. Word has length 23 [2024-11-24 01:04:09,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:04:09,760 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 98 transitions. [2024-11-24 01:04:09,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:04:09,760 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 98 transitions. [2024-11-24 01:04:09,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-24 01:04:09,761 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:04:09,761 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:04:09,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 01:04:09,762 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:04:09,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:04:09,766 INFO L85 PathProgramCache]: Analyzing trace with hash -641332089, now seen corresponding path program 1 times [2024-11-24 01:04:09,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:04:09,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090348381] [2024-11-24 01:04:09,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:04:09,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:04:09,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:04:09,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:04:09,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:04:09,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090348381] [2024-11-24 01:04:09,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090348381] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:04:09,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:04:09,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:04:09,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571400333] [2024-11-24 01:04:09,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:04:09,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:04:09,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:04:09,926 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:04:09,926 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:04:09,926 INFO L87 Difference]: Start difference. First operand 76 states and 98 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-24 01:04:10,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:04:10,010 INFO L93 Difference]: Finished difference Result 186 states and 249 transitions. [2024-11-24 01:04:10,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:04:10,010 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2024-11-24 01:04:10,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:04:10,013 INFO L225 Difference]: With dead ends: 186 [2024-11-24 01:04:10,014 INFO L226 Difference]: Without dead ends: 117 [2024-11-24 01:04:10,014 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:04:10,019 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 55 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:04:10,020 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 175 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:04:10,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-24 01:04:10,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 115. [2024-11-24 01:04:10,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 87 states have (on average 1.3103448275862069) internal successors, (114), 95 states have internal predecessors, (114), 14 states have call successors, (14), 13 states have call predecessors, (14), 13 states have return successors, (20), 12 states have call predecessors, (20), 14 states have call successors, (20) [2024-11-24 01:04:10,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 148 transitions. [2024-11-24 01:04:10,056 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 148 transitions. Word has length 32 [2024-11-24 01:04:10,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:04:10,056 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 148 transitions. [2024-11-24 01:04:10,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-24 01:04:10,057 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 148 transitions. [2024-11-24 01:04:10,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-24 01:04:10,061 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:04:10,061 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:04:10,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 01:04:10,061 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:04:10,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:04:10,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1575154390, now seen corresponding path program 1 times [2024-11-24 01:04:10,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:04:10,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810799563] [2024-11-24 01:04:10,062 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:04:10,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:04:10,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:04:10,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:04:10,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:04:10,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810799563] [2024-11-24 01:04:10,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810799563] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:04:10,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:04:10,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:04:10,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060051345] [2024-11-24 01:04:10,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:04:10,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:04:10,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:04:10,231 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:04:10,231 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:04:10,233 INFO L87 Difference]: Start difference. First operand 115 states and 148 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-24 01:04:10,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:04:10,297 INFO L93 Difference]: Finished difference Result 226 states and 299 transitions. [2024-11-24 01:04:10,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:04:10,298 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 42 [2024-11-24 01:04:10,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:04:10,300 INFO L225 Difference]: With dead ends: 226 [2024-11-24 01:04:10,300 INFO L226 Difference]: Without dead ends: 118 [2024-11-24 01:04:10,301 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 [2024-11-24 01:04:10,301 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 0 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:04:10,302 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 374 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:04:10,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-24 01:04:10,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2024-11-24 01:04:10,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 90 states have (on average 1.3) internal successors, (117), 98 states have internal predecessors, (117), 14 states have call successors, (14), 13 states have call predecessors, (14), 13 states have return successors, (20), 12 states have call predecessors, (20), 14 states have call successors, (20) [2024-11-24 01:04:10,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 151 transitions. [2024-11-24 01:04:10,324 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 151 transitions. Word has length 42 [2024-11-24 01:04:10,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:04:10,326 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 151 transitions. [2024-11-24 01:04:10,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-24 01:04:10,326 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 151 transitions. [2024-11-24 01:04:10,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-24 01:04:10,330 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:04:10,330 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:04:10,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 01:04:10,330 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:04:10,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:04:10,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1698744552, now seen corresponding path program 1 times [2024-11-24 01:04:10,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:04:10,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872508154] [2024-11-24 01:04:10,331 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:04:10,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:04:10,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:04:10,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:04:10,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:04:10,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872508154] [2024-11-24 01:04:10,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872508154] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:04:10,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:04:10,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:04:10,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738826739] [2024-11-24 01:04:10,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:04:10,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:04:10,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:04:10,486 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:04:10,486 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:04:10,487 INFO L87 Difference]: Start difference. First operand 118 states and 151 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-24 01:04:10,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:04:10,601 INFO L93 Difference]: Finished difference Result 231 states and 310 transitions. [2024-11-24 01:04:10,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:04:10,603 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 42 [2024-11-24 01:04:10,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:04:10,605 INFO L225 Difference]: With dead ends: 231 [2024-11-24 01:04:10,605 INFO L226 Difference]: Without dead ends: 120 [2024-11-24 01:04:10,605 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:04:10,608 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 84 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:04:10,608 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 279 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:04:10,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-24 01:04:10,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2024-11-24 01:04:10,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 92 states have (on average 1.2934782608695652) internal successors, (119), 100 states have internal predecessors, (119), 14 states have call successors, (14), 13 states have call predecessors, (14), 13 states have return successors, (20), 12 states have call predecessors, (20), 14 states have call successors, (20) [2024-11-24 01:04:10,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 153 transitions. [2024-11-24 01:04:10,641 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 153 transitions. Word has length 42 [2024-11-24 01:04:10,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:04:10,642 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 153 transitions. [2024-11-24 01:04:10,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-24 01:04:10,642 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 153 transitions. [2024-11-24 01:04:10,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-24 01:04:10,643 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:04:10,643 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:04:10,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 01:04:10,647 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:04:10,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:04:10,647 INFO L85 PathProgramCache]: Analyzing trace with hash -295400154, now seen corresponding path program 1 times [2024-11-24 01:04:10,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:04:10,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752493419] [2024-11-24 01:04:10,648 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:04:10,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:04:10,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:04:10,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:04:10,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:04:10,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752493419] [2024-11-24 01:04:10,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752493419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:04:10,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:04:10,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:04:10,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995552402] [2024-11-24 01:04:10,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:04:10,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:04:10,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:04:10,831 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:04:10,831 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:04:10,834 INFO L87 Difference]: Start difference. First operand 120 states and 153 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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) [2024-11-24 01:04:11,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:04:11,066 INFO L93 Difference]: Finished difference Result 388 states and 516 transitions. [2024-11-24 01:04:11,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:04:11,067 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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 42 [2024-11-24 01:04:11,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:04:11,070 INFO L225 Difference]: With dead ends: 388 [2024-11-24 01:04:11,070 INFO L226 Difference]: Without dead ends: 275 [2024-11-24 01:04:11,071 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 [2024-11-24 01:04:11,072 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 127 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:04:11,072 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 334 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:04:11,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2024-11-24 01:04:11,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 266. [2024-11-24 01:04:11,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 202 states have (on average 1.2772277227722773) internal successors, (258), 217 states have internal predecessors, (258), 32 states have call successors, (32), 30 states have call predecessors, (32), 31 states have return successors, (57), 29 states have call predecessors, (57), 32 states have call successors, (57) [2024-11-24 01:04:11,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 347 transitions. [2024-11-24 01:04:11,140 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 347 transitions. Word has length 42 [2024-11-24 01:04:11,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:04:11,141 INFO L471 AbstractCegarLoop]: Abstraction has 266 states and 347 transitions. [2024-11-24 01:04:11,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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) [2024-11-24 01:04:11,142 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 347 transitions. [2024-11-24 01:04:11,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-24 01:04:11,146 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:04:11,147 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:04:11,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 01:04:11,147 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:04:11,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:04:11,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1670941619, now seen corresponding path program 1 times [2024-11-24 01:04:11,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:04:11,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586661986] [2024-11-24 01:04:11,148 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:04:11,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:04:11,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:04:11,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:04:11,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:04:11,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586661986] [2024-11-24 01:04:11,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586661986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:04:11,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:04:11,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:04:11,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762449437] [2024-11-24 01:04:11,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:04:11,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:04:11,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:04:11,351 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:04:11,351 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:04:11,351 INFO L87 Difference]: Start difference. First operand 266 states and 347 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-24 01:04:11,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:04:11,479 INFO L93 Difference]: Finished difference Result 523 states and 685 transitions. [2024-11-24 01:04:11,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:04:11,479 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 44 [2024-11-24 01:04:11,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:04:11,486 INFO L225 Difference]: With dead ends: 523 [2024-11-24 01:04:11,487 INFO L226 Difference]: Without dead ends: 264 [2024-11-24 01:04:11,488 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:04:11,489 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 35 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:04:11,489 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 360 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:04:11,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2024-11-24 01:04:11,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 264. [2024-11-24 01:04:11,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 200 states have (on average 1.27) internal successors, (254), 215 states have internal predecessors, (254), 32 states have call successors, (32), 30 states have call predecessors, (32), 31 states have return successors, (57), 29 states have call predecessors, (57), 32 states have call successors, (57) [2024-11-24 01:04:11,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 343 transitions. [2024-11-24 01:04:11,581 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 343 transitions. Word has length 44 [2024-11-24 01:04:11,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:04:11,581 INFO L471 AbstractCegarLoop]: Abstraction has 264 states and 343 transitions. [2024-11-24 01:04:11,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-24 01:04:11,582 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 343 transitions. [2024-11-24 01:04:11,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-24 01:04:11,583 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:04:11,583 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:04:11,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 01:04:11,588 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:04:11,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:04:11,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1509172544, now seen corresponding path program 1 times [2024-11-24 01:04:11,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:04:11,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88946458] [2024-11-24 01:04:11,589 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:04:11,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:04:11,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:04:11,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:04:11,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:04:11,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88946458] [2024-11-24 01:04:11,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88946458] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:04:11,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:04:11,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:04:11,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515499349] [2024-11-24 01:04:11,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:04:11,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:04:11,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:04:11,781 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:04:11,782 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:04:11,782 INFO L87 Difference]: Start difference. First operand 264 states and 343 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-24 01:04:11,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:04:11,951 INFO L93 Difference]: Finished difference Result 549 states and 750 transitions. [2024-11-24 01:04:11,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:04:11,958 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 46 [2024-11-24 01:04:11,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:04:11,964 INFO L225 Difference]: With dead ends: 549 [2024-11-24 01:04:11,965 INFO L226 Difference]: Without dead ends: 336 [2024-11-24 01:04:11,967 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:04:11,969 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 46 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:04:11,969 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 523 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:04:11,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2024-11-24 01:04:12,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 336. [2024-11-24 01:04:12,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 253 states have (on average 1.256916996047431) internal successors, (318), 270 states have internal predecessors, (318), 41 states have call successors, (41), 39 states have call predecessors, (41), 41 states have return successors, (83), 39 states have call predecessors, (83), 41 states have call successors, (83) [2024-11-24 01:04:12,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 442 transitions. [2024-11-24 01:04:12,044 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 442 transitions. Word has length 46 [2024-11-24 01:04:12,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:04:12,044 INFO L471 AbstractCegarLoop]: Abstraction has 336 states and 442 transitions. [2024-11-24 01:04:12,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-24 01:04:12,045 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 442 transitions. [2024-11-24 01:04:12,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-24 01:04:12,046 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:04:12,047 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:04:12,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 01:04:12,047 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:04:12,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:04:12,048 INFO L85 PathProgramCache]: Analyzing trace with hash 124896103, now seen corresponding path program 1 times [2024-11-24 01:04:12,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:04:12,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786763098] [2024-11-24 01:04:12,048 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:04:12,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:04:12,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:04:12,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:04:12,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:04:12,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786763098] [2024-11-24 01:04:12,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786763098] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:04:12,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:04:12,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:04:12,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501981927] [2024-11-24 01:04:12,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:04:12,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:04:12,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:04:12,282 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:04:12,282 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:04:12,283 INFO L87 Difference]: Start difference. First operand 336 states and 442 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-24 01:04:12,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:04:12,652 INFO L93 Difference]: Finished difference Result 360 states and 472 transitions. [2024-11-24 01:04:12,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 01:04:12,654 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 48 [2024-11-24 01:04:12,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:04:12,658 INFO L225 Difference]: With dead ends: 360 [2024-11-24 01:04:12,660 INFO L226 Difference]: Without dead ends: 358 [2024-11-24 01:04:12,661 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:04:12,662 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 105 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:04:12,662 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 301 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:04:12,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2024-11-24 01:04:12,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 358. [2024-11-24 01:04:12,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 271 states have (on average 1.2398523985239853) internal successors, (336), 288 states have internal predecessors, (336), 41 states have call successors, (41), 39 states have call predecessors, (41), 45 states have return successors, (90), 43 states have call predecessors, (90), 41 states have call successors, (90) [2024-11-24 01:04:12,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 467 transitions. [2024-11-24 01:04:12,737 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 467 transitions. Word has length 48 [2024-11-24 01:04:12,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:04:12,737 INFO L471 AbstractCegarLoop]: Abstraction has 358 states and 467 transitions. [2024-11-24 01:04:12,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-24 01:04:12,738 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 467 transitions. [2024-11-24 01:04:12,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-24 01:04:12,743 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:04:12,744 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:04:12,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 01:04:12,744 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:04:12,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:04:12,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1037272251, now seen corresponding path program 1 times [2024-11-24 01:04:12,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:04:12,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310025299] [2024-11-24 01:04:12,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:04:12,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:04:12,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:04:13,127 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 11 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-24 01:04:13,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:04:13,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310025299] [2024-11-24 01:04:13,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310025299] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:04:13,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [182897546] [2024-11-24 01:04:13,130 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:04:13,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:04:13,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7358f044-4ec8-4aeb-8b3b-f145ce948a17/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:04:13,136 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7358f044-4ec8-4aeb-8b3b-f145ce948a17/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:04:13,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7358f044-4ec8-4aeb-8b3b-f145ce948a17/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:04:13,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:04:13,304 INFO L256 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-24 01:04:13,314 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:04:13,530 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 15 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:04:13,531 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:04:13,792 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 11 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-24 01:04:13,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [182897546] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:04:13,793 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:04:13,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 6 [2024-11-24 01:04:13,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221527922] [2024-11-24 01:04:13,793 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:04:13,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:04:13,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:04:13,795 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:04:13,795 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:04:13,796 INFO L87 Difference]: Start difference. First operand 358 states and 467 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-24 01:04:14,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:04:14,112 INFO L93 Difference]: Finished difference Result 825 states and 1138 transitions. [2024-11-24 01:04:14,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 01:04:14,113 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 87 [2024-11-24 01:04:14,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:04:14,118 INFO L225 Difference]: With dead ends: 825 [2024-11-24 01:04:14,120 INFO L226 Difference]: Without dead ends: 520 [2024-11-24 01:04:14,125 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 170 SyntacticMatches, 5 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:04:14,126 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 91 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:04:14,126 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 547 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:04:14,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2024-11-24 01:04:14,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 468. [2024-11-24 01:04:14,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 352 states have (on average 1.2414772727272727) internal successors, (437), 375 states have internal predecessors, (437), 55 states have call successors, (55), 52 states have call predecessors, (55), 60 states have return successors, (124), 54 states have call predecessors, (124), 55 states have call successors, (124) [2024-11-24 01:04:14,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 616 transitions. [2024-11-24 01:04:14,249 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 616 transitions. Word has length 87 [2024-11-24 01:04:14,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:04:14,251 INFO L471 AbstractCegarLoop]: Abstraction has 468 states and 616 transitions. [2024-11-24 01:04:14,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-24 01:04:14,251 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 616 transitions. [2024-11-24 01:04:14,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-24 01:04:14,257 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:04:14,258 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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, 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] [2024-11-24 01:04:14,270 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7358f044-4ec8-4aeb-8b3b-f145ce948a17/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 01:04:14,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7358f044-4ec8-4aeb-8b3b-f145ce948a17/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-24 01:04:14,459 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:04:14,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:04:14,459 INFO L85 PathProgramCache]: Analyzing trace with hash -499576544, now seen corresponding path program 2 times [2024-11-24 01:04:14,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:04:14,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598459671] [2024-11-24 01:04:14,460 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:04:14,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:04:14,524 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 01:04:14,524 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:04:14,849 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 45 proven. 8 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-24 01:04:14,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:04:14,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598459671] [2024-11-24 01:04:14,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598459671] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:04:14,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [789276746] [2024-11-24 01:04:14,850 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:04:14,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:04:14,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7358f044-4ec8-4aeb-8b3b-f145ce948a17/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:04:14,854 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7358f044-4ec8-4aeb-8b3b-f145ce948a17/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:04:14,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7358f044-4ec8-4aeb-8b3b-f145ce948a17/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 01:04:15,027 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 01:04:15,028 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:04:15,030 INFO L256 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-24 01:04:15,038 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:04:15,366 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 55 proven. 19 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-24 01:04:15,366 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:04:15,699 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 43 proven. 10 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-24 01:04:15,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [789276746] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:04:15,699 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:04:15,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 8] total 11 [2024-11-24 01:04:15,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245523285] [2024-11-24 01:04:15,700 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:04:15,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 01:04:15,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:04:15,702 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 01:04:15,703 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:04:15,704 INFO L87 Difference]: Start difference. First operand 468 states and 616 transitions. Second operand has 11 states, 11 states have (on average 12.363636363636363) internal successors, (136), 11 states have internal predecessors, (136), 5 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-24 01:04:16,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:04:16,506 INFO L93 Difference]: Finished difference Result 1315 states and 1834 transitions. [2024-11-24 01:04:16,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 01:04:16,507 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.363636363636363) internal successors, (136), 11 states have internal predecessors, (136), 5 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 128 [2024-11-24 01:04:16,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:04:16,515 INFO L225 Difference]: With dead ends: 1315 [2024-11-24 01:04:16,515 INFO L226 Difference]: Without dead ends: 899 [2024-11-24 01:04:16,518 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 246 SyntacticMatches, 5 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=87, Invalid=255, Unknown=0, NotChecked=0, Total=342 [2024-11-24 01:04:16,519 INFO L435 NwaCegarLoop]: 230 mSDtfsCounter, 300 mSDsluCounter, 1043 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 1273 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:04:16,520 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 1273 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 01:04:16,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 899 states. [2024-11-24 01:04:16,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 899 to 884. [2024-11-24 01:04:16,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 884 states, 665 states have (on average 1.219548872180451) internal successors, (811), 702 states have internal predecessors, (811), 105 states have call successors, (105), 101 states have call predecessors, (105), 113 states have return successors, (203), 103 states have call predecessors, (203), 105 states have call successors, (203) [2024-11-24 01:04:16,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 884 states to 884 states and 1119 transitions. [2024-11-24 01:04:16,658 INFO L78 Accepts]: Start accepts. Automaton has 884 states and 1119 transitions. Word has length 128 [2024-11-24 01:04:16,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:04:16,659 INFO L471 AbstractCegarLoop]: Abstraction has 884 states and 1119 transitions. [2024-11-24 01:04:16,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.363636363636363) internal successors, (136), 11 states have internal predecessors, (136), 5 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-24 01:04:16,660 INFO L276 IsEmpty]: Start isEmpty. Operand 884 states and 1119 transitions. [2024-11-24 01:04:16,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-24 01:04:16,663 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:04:16,663 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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, 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] [2024-11-24 01:04:16,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7358f044-4ec8-4aeb-8b3b-f145ce948a17/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-24 01:04:16,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7358f044-4ec8-4aeb-8b3b-f145ce948a17/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-24 01:04:16,868 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:04:16,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:04:16,868 INFO L85 PathProgramCache]: Analyzing trace with hash 179695710, now seen corresponding path program 1 times [2024-11-24 01:04:16,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:04:16,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556162262] [2024-11-24 01:04:16,869 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:04:16,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:04:16,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:04:17,073 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 41 proven. 15 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-24 01:04:17,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:04:17,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556162262] [2024-11-24 01:04:17,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556162262] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:04:17,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [175407999] [2024-11-24 01:04:17,075 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:04:17,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:04:17,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7358f044-4ec8-4aeb-8b3b-f145ce948a17/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:04:17,079 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7358f044-4ec8-4aeb-8b3b-f145ce948a17/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:04:17,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7358f044-4ec8-4aeb-8b3b-f145ce948a17/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 01:04:17,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:04:17,254 INFO L256 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 01:04:17,266 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:04:17,335 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-24 01:04:17,337 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:04:17,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [175407999] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:04:17,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:04:17,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2024-11-24 01:04:17,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361517752] [2024-11-24 01:04:17,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:04:17,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:04:17,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:04:17,338 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:04:17,338 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:04:17,341 INFO L87 Difference]: Start difference. First operand 884 states and 1119 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 01:04:17,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:04:17,418 INFO L93 Difference]: Finished difference Result 1122 states and 1416 transitions. [2024-11-24 01:04:17,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:04:17,419 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 128 [2024-11-24 01:04:17,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:04:17,421 INFO L225 Difference]: With dead ends: 1122 [2024-11-24 01:04:17,421 INFO L226 Difference]: Without dead ends: 0 [2024-11-24 01:04:17,425 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:04:17,425 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 0 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:04:17,427 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 356 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:04:17,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-24 01:04:17,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-24 01:04:17,428 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) [2024-11-24 01:04:17,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-24 01:04:17,429 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 128 [2024-11-24 01:04:17,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:04:17,429 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-24 01:04:17,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 01:04:17,429 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-24 01:04:17,429 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-24 01:04:17,433 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-24 01:04:17,445 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7358f044-4ec8-4aeb-8b3b-f145ce948a17/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-24 01:04:17,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7358f044-4ec8-4aeb-8b3b-f145ce948a17/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-24 01:04:17,639 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:04:17,641 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-24 01:04:19,980 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 01:04:20,000 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 01:04:20 BoogieIcfgContainer [2024-11-24 01:04:20,004 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 01:04:20,004 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 01:04:20,005 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 01:04:20,005 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 01:04:20,006 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:04:08" (3/4) ... [2024-11-24 01:04:20,008 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-24 01:04:20,014 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-11-24 01:04:20,014 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-24 01:04:20,014 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-24 01:04:20,015 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-24 01:04:20,015 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-24 01:04:20,015 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-11-24 01:04:20,015 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-24 01:04:20,015 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__lowWaterSensor [2024-11-24 01:04:20,025 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-11-24 01:04:20,025 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-24 01:04:20,026 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-24 01:04:20,026 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-24 01:04:20,027 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-24 01:04:20,150 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7358f044-4ec8-4aeb-8b3b-f145ce948a17/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-24 01:04:20,151 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7358f044-4ec8-4aeb-8b3b-f145ce948a17/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-24 01:04:20,151 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 01:04:20,152 INFO L158 Benchmark]: Toolchain (without parser) took 12655.64ms. Allocated memory was 142.6MB in the beginning and 343.9MB in the end (delta: 201.3MB). Free memory was 107.0MB in the beginning and 293.5MB in the end (delta: -186.5MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. [2024-11-24 01:04:20,152 INFO L158 Benchmark]: CDTParser took 0.50ms. Allocated memory is still 167.8MB. Free memory is still 105.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:04:20,153 INFO L158 Benchmark]: CACSL2BoogieTranslator took 569.44ms. Allocated memory is still 142.6MB. Free memory was 106.7MB in the beginning and 87.7MB in the end (delta: 19.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 01:04:20,153 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.42ms. Allocated memory is still 142.6MB. Free memory was 87.7MB in the beginning and 85.8MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:04:20,153 INFO L158 Benchmark]: Boogie Preprocessor took 49.91ms. Allocated memory is still 142.6MB. Free memory was 85.8MB in the beginning and 83.8MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 01:04:20,154 INFO L158 Benchmark]: RCFGBuilder took 542.39ms. Allocated memory is still 142.6MB. Free memory was 83.8MB in the beginning and 66.1MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 01:04:20,154 INFO L158 Benchmark]: TraceAbstraction took 11295.53ms. Allocated memory was 142.6MB in the beginning and 343.9MB in the end (delta: 201.3MB). Free memory was 65.8MB in the beginning and 301.8MB in the end (delta: -236.0MB). Peak memory consumption was 144.1MB. Max. memory is 16.1GB. [2024-11-24 01:04:20,155 INFO L158 Benchmark]: Witness Printer took 146.36ms. Allocated memory is still 343.9MB. Free memory was 301.8MB in the beginning and 293.5MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 01:04:20,157 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50ms. Allocated memory is still 167.8MB. Free memory is still 105.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 569.44ms. Allocated memory is still 142.6MB. Free memory was 106.7MB in the beginning and 87.7MB in the end (delta: 19.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.42ms. Allocated memory is still 142.6MB. Free memory was 87.7MB in the beginning and 85.8MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 49.91ms. Allocated memory is still 142.6MB. Free memory was 85.8MB in the beginning and 83.8MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 542.39ms. Allocated memory is still 142.6MB. Free memory was 83.8MB in the beginning and 66.1MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 11295.53ms. Allocated memory was 142.6MB in the beginning and 343.9MB in the end (delta: 201.3MB). Free memory was 65.8MB in the beginning and 301.8MB in the end (delta: -236.0MB). Peak memory consumption was 144.1MB. Max. memory is 16.1GB. * Witness Printer took 146.36ms. Allocated memory is still 343.9MB. Free memory was 301.8MB in the beginning and 293.5MB 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,"libacc.i","") [49] - GenericResultAtLocation [Line: 415]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [415] - GenericResultAtLocation [Line: 484]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [484] - GenericResultAtLocation [Line: 717]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [717] - GenericResultAtLocation [Line: 755]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [755] - GenericResultAtLocation [Line: 764]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [764] - GenericResultAtLocation [Line: 868]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [868] - GenericResultAtLocation [Line: 894]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [894] * 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: 760]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 93 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.9s, OverallIterations: 13, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 942 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 937 mSDsluCounter, 4919 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3363 mSDsCounter, 132 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 697 IncrementalHoareTripleChecker+Invalid, 829 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 132 mSolverCounterUnsat, 1556 mSDtfsCounter, 697 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 649 GetRequests, 574 SyntacticMatches, 10 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=884occurred in iteration=12, InterpolantAutomatonStates: 72, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 13 MinimizatonAttempts, 78 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 1043 NumberOfCodeBlocks, 1043 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1240 ConstructedInterpolants, 0 QuantifiedInterpolants, 2263 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1097 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 18 InterpolantComputations, 11 PerfectInterpolantSequences, 428/504 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: 906]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 430]: Loop Invariant Derived loop invariant: ((((2 <= waterLevel) && (1 == systemActive)) && (splverifierCounter == 0)) || ((((pumpRunning == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (1 <= waterLevel))) - InvariantResult [Line: 429]: Location Invariant Derived location invariant: 0 RESULT: Ultimate proved your program to be correct! [2024-11-24 01:04:20,180 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7358f044-4ec8-4aeb-8b3b-f145ce948a17/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE