./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product57.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a2d2b5f-dfab-4571-bb60-976e7c466b94/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a2d2b5f-dfab-4571-bb60-976e7c466b94/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a2d2b5f-dfab-4571-bb60-976e7c466b94/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a2d2b5f-dfab-4571-bb60-976e7c466b94/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product57.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a2d2b5f-dfab-4571-bb60-976e7c466b94/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a2d2b5f-dfab-4571-bb60-976e7c466b94/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3cfb2febd3006e73b0e8309478193e665e2e7ddd381dfad7d5652117e74962c4 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:06:17,604 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:06:17,722 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a2d2b5f-dfab-4571-bb60-976e7c466b94/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 20:06:17,731 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:06:17,732 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:06:17,779 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:06:17,781 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:06:17,781 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:06:17,782 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:06:17,782 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:06:17,783 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:06:17,783 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:06:17,784 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:06:17,784 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:06:17,784 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:06:17,784 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:06:17,785 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:06:17,785 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:06:17,785 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:06:17,786 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:06:17,786 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:06:17,786 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:06:17,786 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:06:17,786 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:06:17,786 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:06:17,786 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:06:17,787 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:06:17,787 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:06:17,787 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:06:17,787 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:06:17,787 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:06:17,787 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:06:17,787 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:06:17,787 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:06:17,787 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:06:17,788 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:06:17,788 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:06:17,788 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:06:17,789 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:06:17,789 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:06:17,789 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:06:17,789 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:06:17,790 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:06:17,790 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:06:17,790 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:06:17,790 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:06:17,791 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:06:17,791 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:06:17,791 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_9a2d2b5f-dfab-4571-bb60-976e7c466b94/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3cfb2febd3006e73b0e8309478193e665e2e7ddd381dfad7d5652117e74962c4 [2024-11-27 20:06:18,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:06:18,182 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:06:18,188 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:06:18,191 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:06:18,191 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:06:18,194 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a2d2b5f-dfab-4571-bb60-976e7c466b94/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/product-lines/minepump_spec3_product57.cil.c [2024-11-27 20:06:21,734 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a2d2b5f-dfab-4571-bb60-976e7c466b94/bin/uautomizer-verify-aQ6SnzHsRB/data/6e9d4bb86/e7dfef52375045ffa6af009bd40298e5/FLAG81ec69696 [2024-11-27 20:06:22,097 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:06:22,097 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a2d2b5f-dfab-4571-bb60-976e7c466b94/sv-benchmarks/c/product-lines/minepump_spec3_product57.cil.c [2024-11-27 20:06:22,128 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a2d2b5f-dfab-4571-bb60-976e7c466b94/bin/uautomizer-verify-aQ6SnzHsRB/data/6e9d4bb86/e7dfef52375045ffa6af009bd40298e5/FLAG81ec69696 [2024-11-27 20:06:22,314 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a2d2b5f-dfab-4571-bb60-976e7c466b94/bin/uautomizer-verify-aQ6SnzHsRB/data/6e9d4bb86/e7dfef52375045ffa6af009bd40298e5 [2024-11-27 20:06:22,317 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:06:22,319 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:06:22,323 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:06:22,323 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:06:22,329 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:06:22,330 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:06:22" (1/1) ... [2024-11-27 20:06:22,331 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41f4706d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:06:22, skipping insertion in model container [2024-11-27 20:06:22,334 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:06:22" (1/1) ... [2024-11-27 20:06:22,393 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:06:22,787 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_9a2d2b5f-dfab-4571-bb60-976e7c466b94/sv-benchmarks/c/product-lines/minepump_spec3_product57.cil.c[13989,14002] [2024-11-27 20:06:22,834 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:06:22,847 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:06:22,859 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] [2024-11-27 20:06:22,861 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [415] [2024-11-27 20:06:22,861 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [526] [2024-11-27 20:06:22,861 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [564] [2024-11-27 20:06:22,862 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [600] [2024-11-27 20:06:22,862 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [609] [2024-11-27 20:06:22,862 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [828] [2024-11-27 20:06:22,862 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [894] [2024-11-27 20:06:22,923 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_9a2d2b5f-dfab-4571-bb60-976e7c466b94/sv-benchmarks/c/product-lines/minepump_spec3_product57.cil.c[13989,14002] [2024-11-27 20:06:22,940 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:06:22,963 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:06:22,964 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:06:22 WrapperNode [2024-11-27 20:06:22,964 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:06:22,966 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:06:22,966 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:06:22,966 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:06:22,974 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:06:22" (1/1) ... [2024-11-27 20:06:22,988 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:06:22" (1/1) ... [2024-11-27 20:06:23,028 INFO L138 Inliner]: procedures = 56, calls = 101, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 226 [2024-11-27 20:06:23,029 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:06:23,029 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:06:23,030 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:06:23,030 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:06:23,043 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:06:22" (1/1) ... [2024-11-27 20:06:23,043 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:06:22" (1/1) ... [2024-11-27 20:06:23,047 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:06:22" (1/1) ... [2024-11-27 20:06:23,081 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]. [2024-11-27 20:06:23,085 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:06:22" (1/1) ... [2024-11-27 20:06:23,085 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:06:22" (1/1) ... [2024-11-27 20:06:23,098 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:06:22" (1/1) ... [2024-11-27 20:06:23,099 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:06:22" (1/1) ... [2024-11-27 20:06:23,108 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:06:22" (1/1) ... [2024-11-27 20:06:23,110 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:06:22" (1/1) ... [2024-11-27 20:06:23,115 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:06:22" (1/1) ... [2024-11-27 20:06:23,120 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:06:23,122 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:06:23,123 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:06:23,124 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:06:23,127 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:06:22" (1/1) ... [2024-11-27 20:06:23,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:06:23,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a2d2b5f-dfab-4571-bb60-976e7c466b94/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:06:23,168 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a2d2b5f-dfab-4571-bb60-976e7c466b94/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:06:23,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a2d2b5f-dfab-4571-bb60-976e7c466b94/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:06:23,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:06:23,211 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-27 20:06:23,211 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-27 20:06:23,211 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-27 20:06:23,211 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-27 20:06:23,212 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-27 20:06:23,212 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-27 20:06:23,212 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2024-11-27 20:06:23,212 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2024-11-27 20:06:23,213 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-11-27 20:06:23,214 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-11-27 20:06:23,214 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-27 20:06:23,214 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-27 20:06:23,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:06:23,215 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-27 20:06:23,216 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-27 20:06:23,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:06:23,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:06:23,320 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:06:23,323 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:06:23,704 INFO L? ?]: Removed 53 outVars from TransFormulas that were not future-live. [2024-11-27 20:06:23,705 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:06:23,725 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:06:23,729 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-27 20:06:23,729 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:06:23 BoogieIcfgContainer [2024-11-27 20:06:23,730 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:06:23,733 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:06:23,734 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:06:23,741 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:06:23,741 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:06:22" (1/3) ... [2024-11-27 20:06:23,743 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@391724ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:06:23, skipping insertion in model container [2024-11-27 20:06:23,743 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:06:22" (2/3) ... [2024-11-27 20:06:23,748 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@391724ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:06:23, skipping insertion in model container [2024-11-27 20:06:23,752 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:06:23" (3/3) ... [2024-11-27 20:06:23,754 INFO L128 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product57.cil.c [2024-11-27 20:06:23,772 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:06:23,776 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG minepump_spec3_product57.cil.c that has 8 procedures, 91 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-11-27 20:06:23,858 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:06:23,874 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;@39b83b5d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:06:23,874 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 20:06:23,878 INFO L276 IsEmpty]: Start isEmpty. Operand has 91 states, 70 states have (on average 1.4) internal successors, (98), 78 states have internal predecessors, (98), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-27 20:06:23,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-27 20:06:23,887 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:23,888 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:06:23,888 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:06:23,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:23,892 INFO L85 PathProgramCache]: Analyzing trace with hash -468476604, now seen corresponding path program 1 times [2024-11-27 20:06:23,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:06:23,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976254534] [2024-11-27 20:06:23,901 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:23,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:06:24,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:24,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:06:24,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:06:24,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976254534] [2024-11-27 20:06:24,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976254534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:06:24,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:06:24,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:06:24,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545532746] [2024-11-27 20:06:24,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:06:24,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 20:06:24,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:06:24,192 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 20:06:24,193 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:06:24,195 INFO L87 Difference]: Start difference. First operand has 91 states, 70 states have (on average 1.4) internal successors, (98), 78 states have internal predecessors, (98), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 20:06:24,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:24,234 INFO L93 Difference]: Finished difference Result 174 states and 239 transitions. [2024-11-27 20:06:24,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 20:06:24,238 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-11-27 20:06:24,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:24,249 INFO L225 Difference]: With dead ends: 174 [2024-11-27 20:06:24,250 INFO L226 Difference]: Without dead ends: 82 [2024-11-27 20:06:24,255 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 [2024-11-27 20:06:24,259 INFO L435 NwaCegarLoop]: 116 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, 116 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 [2024-11-27 20:06:24,260 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:06:24,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-11-27 20:06:24,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2024-11-27 20:06:24,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 63 states have (on average 1.3333333333333333) internal successors, (84), 70 states have internal predecessors, (84), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-27 20:06:24,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 107 transitions. [2024-11-27 20:06:24,318 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 107 transitions. Word has length 25 [2024-11-27 20:06:24,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:24,319 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 107 transitions. [2024-11-27 20:06:24,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 20:06:24,319 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 107 transitions. [2024-11-27 20:06:24,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-27 20:06:24,323 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:24,324 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:06:24,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 20:06:24,325 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:06:24,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:24,326 INFO L85 PathProgramCache]: Analyzing trace with hash 2139023870, now seen corresponding path program 1 times [2024-11-27 20:06:24,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:06:24,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514372164] [2024-11-27 20:06:24,326 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:24,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:06:24,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:24,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:06:24,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:06:24,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514372164] [2024-11-27 20:06:24,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514372164] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:06:24,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:06:24,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:06:24,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692788953] [2024-11-27 20:06:24,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:06:24,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:06:24,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:06:24,560 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:06:24,560 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:06:24,561 INFO L87 Difference]: Start difference. First operand 82 states and 107 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 20:06:24,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:24,584 INFO L93 Difference]: Finished difference Result 132 states and 172 transitions. [2024-11-27 20:06:24,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:06:24,585 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-11-27 20:06:24,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:24,586 INFO L225 Difference]: With dead ends: 132 [2024-11-27 20:06:24,587 INFO L226 Difference]: Without dead ends: 74 [2024-11-27 20:06:24,587 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 [2024-11-27 20:06:24,589 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 12 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 175 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 [2024-11-27 20:06:24,589 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 175 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:06:24,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-11-27 20:06:24,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2024-11-27 20:06:24,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 58 states have (on average 1.3448275862068966) internal successors, (78), 65 states have internal predecessors, (78), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-27 20:06:24,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 96 transitions. [2024-11-27 20:06:24,602 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 96 transitions. Word has length 25 [2024-11-27 20:06:24,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:24,602 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 96 transitions. [2024-11-27 20:06:24,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 20:06:24,603 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 96 transitions. [2024-11-27 20:06:24,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-27 20:06:24,604 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:24,605 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] [2024-11-27 20:06:24,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 20:06:24,605 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:06:24,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:24,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1244122823, now seen corresponding path program 1 times [2024-11-27 20:06:24,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:06:24,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334432512] [2024-11-27 20:06:24,607 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:24,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:06:24,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:24,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:06:24,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:06:24,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334432512] [2024-11-27 20:06:24,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334432512] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:06:24,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:06:24,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:06:24,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047300481] [2024-11-27 20:06:24,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:06:24,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:06:24,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:06:24,808 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:06:24,808 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:06:24,808 INFO L87 Difference]: Start difference. First operand 74 states and 96 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2024-11-27 20:06:24,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:24,837 INFO L93 Difference]: Finished difference Result 141 states and 186 transitions. [2024-11-27 20:06:24,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:06:24,838 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 29 [2024-11-27 20:06:24,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:24,839 INFO L225 Difference]: With dead ends: 141 [2024-11-27 20:06:24,839 INFO L226 Difference]: Without dead ends: 74 [2024-11-27 20:06:24,840 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 [2024-11-27 20:06:24,841 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 79 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 94 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 [2024-11-27 20:06:24,841 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 94 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:06:24,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-11-27 20:06:24,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2024-11-27 20:06:24,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 58 states have (on average 1.3275862068965518) internal successors, (77), 65 states have internal predecessors, (77), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-27 20:06:24,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 95 transitions. [2024-11-27 20:06:24,858 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 95 transitions. Word has length 29 [2024-11-27 20:06:24,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:24,858 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 95 transitions. [2024-11-27 20:06:24,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2024-11-27 20:06:24,859 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 95 transitions. [2024-11-27 20:06:24,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-27 20:06:24,860 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:24,860 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] [2024-11-27 20:06:24,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 20:06:24,861 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:06:24,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:24,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1971488251, now seen corresponding path program 1 times [2024-11-27 20:06:24,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:06:24,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941778903] [2024-11-27 20:06:24,862 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:24,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:06:24,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:24,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:06:24,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:06:24,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941778903] [2024-11-27 20:06:24,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941778903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:06:24,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:06:24,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:06:24,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453429915] [2024-11-27 20:06:24,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:06:24,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:06:24,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:06:24,978 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:06:24,979 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:06:24,981 INFO L87 Difference]: Start difference. First operand 74 states and 95 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 20:06:25,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:25,081 INFO L93 Difference]: Finished difference Result 185 states and 243 transitions. [2024-11-27 20:06:25,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:06:25,085 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (2), 1 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 37 [2024-11-27 20:06:25,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:25,087 INFO L225 Difference]: With dead ends: 185 [2024-11-27 20:06:25,087 INFO L226 Difference]: Without dead ends: 118 [2024-11-27 20:06:25,088 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 [2024-11-27 20:06:25,092 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 74 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:06:25,092 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 168 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:06:25,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-27 20:06:25,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 116. [2024-11-27 20:06:25,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 90 states have (on average 1.3111111111111111) internal successors, (118), 98 states have internal predecessors, (118), 13 states have call successors, (13), 12 states have call predecessors, (13), 12 states have return successors, (17), 13 states have call predecessors, (17), 13 states have call successors, (17) [2024-11-27 20:06:25,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 148 transitions. [2024-11-27 20:06:25,116 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 148 transitions. Word has length 37 [2024-11-27 20:06:25,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:25,116 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 148 transitions. [2024-11-27 20:06:25,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 20:06:25,117 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 148 transitions. [2024-11-27 20:06:25,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-27 20:06:25,118 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:25,118 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:06:25,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 20:06:25,118 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:06:25,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:25,119 INFO L85 PathProgramCache]: Analyzing trace with hash 2072803912, now seen corresponding path program 1 times [2024-11-27 20:06:25,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:06:25,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214755707] [2024-11-27 20:06:25,119 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:25,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:06:25,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:25,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:06:25,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:06:25,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214755707] [2024-11-27 20:06:25,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214755707] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:06:25,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:06:25,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:06:25,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141934967] [2024-11-27 20:06:25,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:06:25,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:06:25,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:06:25,402 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:06:25,403 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:06:25,442 INFO L87 Difference]: Start difference. First operand 116 states and 148 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 20:06:25,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:25,624 INFO L93 Difference]: Finished difference Result 309 states and 410 transitions. [2024-11-27 20:06:25,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:06:25,625 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 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 45 [2024-11-27 20:06:25,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:25,634 INFO L225 Difference]: With dead ends: 309 [2024-11-27 20:06:25,634 INFO L226 Difference]: Without dead ends: 200 [2024-11-27 20:06:25,635 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:06:25,637 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 45 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:06:25,637 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 345 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:06:25,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2024-11-27 20:06:25,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2024-11-27 20:06:25,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 154 states have (on average 1.2857142857142858) internal successors, (198), 165 states have internal predecessors, (198), 24 states have call successors, (24), 22 states have call predecessors, (24), 21 states have return successors, (33), 23 states have call predecessors, (33), 24 states have call successors, (33) [2024-11-27 20:06:25,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 255 transitions. [2024-11-27 20:06:25,680 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 255 transitions. Word has length 45 [2024-11-27 20:06:25,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:25,681 INFO L471 AbstractCegarLoop]: Abstraction has 200 states and 255 transitions. [2024-11-27 20:06:25,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 20:06:25,681 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 255 transitions. [2024-11-27 20:06:25,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-27 20:06:25,683 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:25,683 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, 1] [2024-11-27 20:06:25,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 20:06:25,683 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:06:25,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:25,684 INFO L85 PathProgramCache]: Analyzing trace with hash 899637806, now seen corresponding path program 1 times [2024-11-27 20:06:25,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:06:25,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334649154] [2024-11-27 20:06:25,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:25,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:06:25,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:25,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:06:25,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:06:25,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334649154] [2024-11-27 20:06:25,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334649154] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:06:25,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:06:25,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:06:25,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705070406] [2024-11-27 20:06:25,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:06:25,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:06:25,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:06:25,878 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:06:25,878 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:06:25,878 INFO L87 Difference]: Start difference. First operand 200 states and 255 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-27 20:06:26,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:26,026 INFO L93 Difference]: Finished difference Result 408 states and 552 transitions. [2024-11-27 20:06:26,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:06:26,027 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 49 [2024-11-27 20:06:26,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:26,031 INFO L225 Difference]: With dead ends: 408 [2024-11-27 20:06:26,035 INFO L226 Difference]: Without dead ends: 299 [2024-11-27 20:06:26,036 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 [2024-11-27 20:06:26,037 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 72 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:06:26,037 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 338 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:06:26,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2024-11-27 20:06:26,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 295. [2024-11-27 20:06:26,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 228 states have (on average 1.2850877192982457) internal successors, (293), 244 states have internal predecessors, (293), 35 states have call successors, (35), 32 states have call predecessors, (35), 31 states have return successors, (56), 34 states have call predecessors, (56), 35 states have call successors, (56) [2024-11-27 20:06:26,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 384 transitions. [2024-11-27 20:06:26,121 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 384 transitions. Word has length 49 [2024-11-27 20:06:26,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:26,124 INFO L471 AbstractCegarLoop]: Abstraction has 295 states and 384 transitions. [2024-11-27 20:06:26,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-27 20:06:26,125 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 384 transitions. [2024-11-27 20:06:26,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-27 20:06:26,127 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:26,127 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, 1] [2024-11-27 20:06:26,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 20:06:26,128 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:06:26,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:26,132 INFO L85 PathProgramCache]: Analyzing trace with hash 765624300, now seen corresponding path program 1 times [2024-11-27 20:06:26,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:06:26,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488416184] [2024-11-27 20:06:26,133 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:26,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:06:26,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:26,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:06:26,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:06:26,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488416184] [2024-11-27 20:06:26,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488416184] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:06:26,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:06:26,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:06:26,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781322165] [2024-11-27 20:06:26,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:06:26,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:06:26,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:06:26,269 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:06:26,269 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:06:26,269 INFO L87 Difference]: Start difference. First operand 295 states and 384 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-27 20:06:26,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:26,342 INFO L93 Difference]: Finished difference Result 503 states and 668 transitions. [2024-11-27 20:06:26,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:06:26,343 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 49 [2024-11-27 20:06:26,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:26,350 INFO L225 Difference]: With dead ends: 503 [2024-11-27 20:06:26,350 INFO L226 Difference]: Without dead ends: 295 [2024-11-27 20:06:26,351 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:06:26,354 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 0 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:06:26,355 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 276 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:06:26,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2024-11-27 20:06:26,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 295. [2024-11-27 20:06:26,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 228 states have (on average 1.280701754385965) internal successors, (292), 244 states have internal predecessors, (292), 35 states have call successors, (35), 32 states have call predecessors, (35), 31 states have return successors, (56), 34 states have call predecessors, (56), 35 states have call successors, (56) [2024-11-27 20:06:26,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 383 transitions. [2024-11-27 20:06:26,404 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 383 transitions. Word has length 49 [2024-11-27 20:06:26,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:26,404 INFO L471 AbstractCegarLoop]: Abstraction has 295 states and 383 transitions. [2024-11-27 20:06:26,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-27 20:06:26,405 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 383 transitions. [2024-11-27 20:06:26,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-27 20:06:26,407 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:26,407 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, 1] [2024-11-27 20:06:26,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 20:06:26,408 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:06:26,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:26,409 INFO L85 PathProgramCache]: Analyzing trace with hash 984479018, now seen corresponding path program 1 times [2024-11-27 20:06:26,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:06:26,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415988533] [2024-11-27 20:06:26,409 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:26,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:06:26,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:26,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:06:26,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:06:26,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415988533] [2024-11-27 20:06:26,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415988533] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:06:26,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:06:26,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:06:26,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551653199] [2024-11-27 20:06:26,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:06:26,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:06:26,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:06:26,567 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:06:26,568 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:06:26,568 INFO L87 Difference]: Start difference. First operand 295 states and 383 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-27 20:06:26,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:26,653 INFO L93 Difference]: Finished difference Result 586 states and 780 transitions. [2024-11-27 20:06:26,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:06:26,658 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 49 [2024-11-27 20:06:26,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:26,661 INFO L225 Difference]: With dead ends: 586 [2024-11-27 20:06:26,661 INFO L226 Difference]: Without dead ends: 298 [2024-11-27 20:06:26,663 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 [2024-11-27 20:06:26,664 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 0 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 368 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 [2024-11-27 20:06:26,664 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 368 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:06:26,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2024-11-27 20:06:26,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2024-11-27 20:06:26,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 233 states have (on average 1.2703862660944205) internal successors, (296), 248 states have internal predecessors, (296), 34 states have call successors, (34), 31 states have call predecessors, (34), 30 states have return successors, (55), 33 states have call predecessors, (55), 34 states have call successors, (55) [2024-11-27 20:06:26,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 385 transitions. [2024-11-27 20:06:26,716 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 385 transitions. Word has length 49 [2024-11-27 20:06:26,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:26,721 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 385 transitions. [2024-11-27 20:06:26,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-27 20:06:26,721 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 385 transitions. [2024-11-27 20:06:26,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-27 20:06:26,722 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:26,723 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:06:26,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 20:06:26,723 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:06:26,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:26,724 INFO L85 PathProgramCache]: Analyzing trace with hash -412087840, now seen corresponding path program 1 times [2024-11-27 20:06:26,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:06:26,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555658424] [2024-11-27 20:06:26,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:26,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:06:26,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:27,111 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 20:06:27,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:06:27,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555658424] [2024-11-27 20:06:27,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555658424] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:06:27,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [156362573] [2024-11-27 20:06:27,112 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:27,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:06:27,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a2d2b5f-dfab-4571-bb60-976e7c466b94/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:06:27,117 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a2d2b5f-dfab-4571-bb60-976e7c466b94/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:06:27,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a2d2b5f-dfab-4571-bb60-976e7c466b94/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 20:06:27,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:27,255 INFO L256 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-27 20:06:27,264 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:06:27,513 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:06:27,513 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:06:27,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [156362573] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:06:27,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:06:27,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2024-11-27 20:06:27,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956385969] [2024-11-27 20:06:27,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:06:27,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:06:27,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:06:27,519 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:06:27,519 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-27 20:06:27,519 INFO L87 Difference]: Start difference. First operand 298 states and 385 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-27 20:06:27,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:27,767 INFO L93 Difference]: Finished difference Result 875 states and 1162 transitions. [2024-11-27 20:06:27,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:06:27,768 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 54 [2024-11-27 20:06:27,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:27,777 INFO L225 Difference]: With dead ends: 875 [2024-11-27 20:06:27,777 INFO L226 Difference]: Without dead ends: 584 [2024-11-27 20:06:27,779 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-27 20:06:27,780 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 54 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:06:27,781 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 461 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:06:27,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2024-11-27 20:06:27,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 582. [2024-11-27 20:06:27,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 454 states have (on average 1.2577092511013215) internal successors, (571), 480 states have internal predecessors, (571), 68 states have call successors, (68), 62 states have call predecessors, (68), 59 states have return successors, (113), 65 states have call predecessors, (113), 68 states have call successors, (113) [2024-11-27 20:06:27,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 752 transitions. [2024-11-27 20:06:27,884 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 752 transitions. Word has length 54 [2024-11-27 20:06:27,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:27,885 INFO L471 AbstractCegarLoop]: Abstraction has 582 states and 752 transitions. [2024-11-27 20:06:27,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-27 20:06:27,885 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 752 transitions. [2024-11-27 20:06:27,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-27 20:06:27,887 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:27,887 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:06:27,902 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a2d2b5f-dfab-4571-bb60-976e7c466b94/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 20:06:28,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a2d2b5f-dfab-4571-bb60-976e7c466b94/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:06:28,091 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:06:28,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:28,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1513981096, now seen corresponding path program 1 times [2024-11-27 20:06:28,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:06:28,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608309080] [2024-11-27 20:06:28,093 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:28,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:06:28,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:28,254 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 20:06:28,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:06:28,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608309080] [2024-11-27 20:06:28,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608309080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:06:28,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:06:28,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 20:06:28,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459840908] [2024-11-27 20:06:28,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:06:28,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:06:28,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:06:28,256 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:06:28,256 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:06:28,257 INFO L87 Difference]: Start difference. First operand 582 states and 752 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-27 20:06:28,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:28,486 INFO L93 Difference]: Finished difference Result 1157 states and 1516 transitions. [2024-11-27 20:06:28,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:06:28,487 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 55 [2024-11-27 20:06:28,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:28,493 INFO L225 Difference]: With dead ends: 1157 [2024-11-27 20:06:28,493 INFO L226 Difference]: Without dead ends: 582 [2024-11-27 20:06:28,496 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:06:28,498 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 176 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:06:28,499 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 423 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:06:28,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2024-11-27 20:06:28,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 582. [2024-11-27 20:06:28,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 454 states have (on average 1.222466960352423) internal successors, (555), 480 states have internal predecessors, (555), 68 states have call successors, (68), 62 states have call predecessors, (68), 59 states have return successors, (102), 65 states have call predecessors, (102), 68 states have call successors, (102) [2024-11-27 20:06:28,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 725 transitions. [2024-11-27 20:06:28,611 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 725 transitions. Word has length 55 [2024-11-27 20:06:28,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:28,612 INFO L471 AbstractCegarLoop]: Abstraction has 582 states and 725 transitions. [2024-11-27 20:06:28,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-27 20:06:28,613 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 725 transitions. [2024-11-27 20:06:28,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-27 20:06:28,616 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:28,617 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:06:28,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 20:06:28,618 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:06:28,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:28,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1557283844, now seen corresponding path program 1 times [2024-11-27 20:06:28,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:06:28,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58237862] [2024-11-27 20:06:28,619 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:28,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:06:28,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:28,825 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 20:06:28,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:06:28,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58237862] [2024-11-27 20:06:28,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58237862] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:06:28,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:06:28,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-27 20:06:28,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604885458] [2024-11-27 20:06:28,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:06:28,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 20:06:28,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:06:28,827 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 20:06:28,828 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:06:28,832 INFO L87 Difference]: Start difference. First operand 582 states and 725 transitions. Second operand has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 8 states have internal predecessors, (47), 4 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-27 20:06:29,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:29,213 INFO L93 Difference]: Finished difference Result 1141 states and 1440 transitions. [2024-11-27 20:06:29,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 20:06:29,215 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 8 states have internal predecessors, (47), 4 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) Word has length 58 [2024-11-27 20:06:29,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:29,221 INFO L225 Difference]: With dead ends: 1141 [2024-11-27 20:06:29,221 INFO L226 Difference]: Without dead ends: 566 [2024-11-27 20:06:29,224 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2024-11-27 20:06:29,225 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 197 mSDsluCounter, 696 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:06:29,229 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 860 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:06:29,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2024-11-27 20:06:29,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 566. [2024-11-27 20:06:29,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 438 states have (on average 1.1963470319634704) internal successors, (524), 464 states have internal predecessors, (524), 68 states have call successors, (68), 62 states have call predecessors, (68), 59 states have return successors, (96), 65 states have call predecessors, (96), 68 states have call successors, (96) [2024-11-27 20:06:29,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 688 transitions. [2024-11-27 20:06:29,329 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 688 transitions. Word has length 58 [2024-11-27 20:06:29,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:29,329 INFO L471 AbstractCegarLoop]: Abstraction has 566 states and 688 transitions. [2024-11-27 20:06:29,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 8 states have internal predecessors, (47), 4 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-27 20:06:29,330 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 688 transitions. [2024-11-27 20:06:29,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-27 20:06:29,334 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:29,335 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-27 20:06:29,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-27 20:06:29,335 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:06:29,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:29,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1653701970, now seen corresponding path program 1 times [2024-11-27 20:06:29,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:06:29,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834171232] [2024-11-27 20:06:29,336 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:29,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:06:29,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:29,598 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-27 20:06:29,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:06:29,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834171232] [2024-11-27 20:06:29,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834171232] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:06:29,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1182673220] [2024-11-27 20:06:29,599 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:29,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:06:29,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a2d2b5f-dfab-4571-bb60-976e7c466b94/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:06:29,602 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a2d2b5f-dfab-4571-bb60-976e7c466b94/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:06:29,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a2d2b5f-dfab-4571-bb60-976e7c466b94/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 20:06:29,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:29,741 INFO L256 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-27 20:06:29,745 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:06:30,041 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-27 20:06:30,042 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:06:30,604 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-27 20:06:30,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1182673220] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:06:30,605 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:06:30,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 9] total 18 [2024-11-27 20:06:30,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632465810] [2024-11-27 20:06:30,606 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:06:30,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-27 20:06:30,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:06:30,607 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-27 20:06:30,608 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2024-11-27 20:06:30,608 INFO L87 Difference]: Start difference. First operand 566 states and 688 transitions. Second operand has 18 states, 18 states have (on average 7.444444444444445) internal successors, (134), 15 states have internal predecessors, (134), 7 states have call successors, (18), 7 states have call predecessors, (18), 9 states have return successors, (17), 9 states have call predecessors, (17), 7 states have call successors, (17) [2024-11-27 20:06:32,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:32,256 INFO L93 Difference]: Finished difference Result 1230 states and 1538 transitions. [2024-11-27 20:06:32,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-27 20:06:32,257 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.444444444444445) internal successors, (134), 15 states have internal predecessors, (134), 7 states have call successors, (18), 7 states have call predecessors, (18), 9 states have return successors, (17), 9 states have call predecessors, (17), 7 states have call successors, (17) Word has length 85 [2024-11-27 20:06:32,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:32,259 INFO L225 Difference]: With dead ends: 1230 [2024-11-27 20:06:32,259 INFO L226 Difference]: Without dead ends: 0 [2024-11-27 20:06:32,264 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 161 SyntacticMatches, 7 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=486, Invalid=1770, Unknown=0, NotChecked=0, Total=2256 [2024-11-27 20:06:32,264 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 565 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 567 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 196 IncrementalHoareTripleChecker+Valid, 562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:06:32,265 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [567 Valid, 499 Invalid, 758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [196 Valid, 562 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 20:06:32,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-27 20:06:32,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-27 20:06:32,266 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) [2024-11-27 20:06:32,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-27 20:06:32,267 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 85 [2024-11-27 20:06:32,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:32,267 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-27 20:06:32,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.444444444444445) internal successors, (134), 15 states have internal predecessors, (134), 7 states have call successors, (18), 7 states have call predecessors, (18), 9 states have return successors, (17), 9 states have call predecessors, (17), 7 states have call successors, (17) [2024-11-27 20:06:32,267 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-27 20:06:32,268 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-27 20:06:32,271 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-27 20:06:32,283 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a2d2b5f-dfab-4571-bb60-976e7c466b94/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 20:06:32,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a2d2b5f-dfab-4571-bb60-976e7c466b94/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:06:32,478 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:06:32,482 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-27 20:06:37,708 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 20:06:37,725 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 08:06:37 BoogieIcfgContainer [2024-11-27 20:06:37,725 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 20:06:37,726 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 20:06:37,726 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 20:06:37,726 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 20:06:37,727 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:06:23" (3/4) ... [2024-11-27 20:06:37,730 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-27 20:06:37,739 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-27 20:06:37,739 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-27 20:06:37,739 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-27 20:06:37,739 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-27 20:06:37,740 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2024-11-27 20:06:37,740 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-11-27 20:06:37,740 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-27 20:06:37,752 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2024-11-27 20:06:37,754 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-27 20:06:37,754 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-27 20:06:37,755 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-27 20:06:37,755 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-27 20:06:37,898 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a2d2b5f-dfab-4571-bb60-976e7c466b94/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 20:06:37,899 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a2d2b5f-dfab-4571-bb60-976e7c466b94/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-27 20:06:37,899 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 20:06:37,901 INFO L158 Benchmark]: Toolchain (without parser) took 15581.25ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 92.0MB in the beginning and 72.6MB in the end (delta: 19.3MB). Peak memory consumption was 40.9MB. Max. memory is 16.1GB. [2024-11-27 20:06:37,901 INFO L158 Benchmark]: CDTParser took 0.76ms. Allocated memory is still 117.4MB. Free memory is still 73.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:06:37,902 INFO L158 Benchmark]: CACSL2BoogieTranslator took 641.89ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 73.1MB in the end (delta: 18.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:06:37,903 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.41ms. Allocated memory is still 117.4MB. Free memory was 73.1MB in the beginning and 71.1MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:06:37,903 INFO L158 Benchmark]: Boogie Preprocessor took 91.48ms. Allocated memory is still 117.4MB. Free memory was 71.1MB in the beginning and 69.1MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:06:37,906 INFO L158 Benchmark]: RCFGBuilder took 607.37ms. Allocated memory is still 117.4MB. Free memory was 69.1MB in the beginning and 51.8MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 20:06:37,906 INFO L158 Benchmark]: TraceAbstraction took 13991.68ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 51.3MB in the beginning and 79.5MB in the end (delta: -28.2MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-11-27 20:06:37,906 INFO L158 Benchmark]: Witness Printer took 173.46ms. Allocated memory is still 142.6MB. Free memory was 79.5MB in the beginning and 72.6MB in the end (delta: 6.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:06:37,909 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.76ms. Allocated memory is still 117.4MB. Free memory is still 73.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 641.89ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 73.1MB in the end (delta: 18.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.41ms. Allocated memory is still 117.4MB. Free memory was 73.1MB in the beginning and 71.1MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 91.48ms. Allocated memory is still 117.4MB. Free memory was 71.1MB in the beginning and 69.1MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 607.37ms. Allocated memory is still 117.4MB. Free memory was 69.1MB in the beginning and 51.8MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 13991.68ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 51.3MB in the beginning and 79.5MB in the end (delta: -28.2MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Witness Printer took 173.46ms. Allocated memory is still 142.6MB. Free memory was 79.5MB in the beginning and 72.6MB in the end (delta: 6.9MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] - GenericResultAtLocation [Line: 415]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [415] - GenericResultAtLocation [Line: 526]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [526] - GenericResultAtLocation [Line: 564]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [564] - GenericResultAtLocation [Line: 600]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [600] - GenericResultAtLocation [Line: 609]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [609] - GenericResultAtLocation [Line: 828]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [828] - 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: 605]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 91 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.6s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1284 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1274 mSDsluCounter, 4123 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2922 mSDsCounter, 280 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 916 IncrementalHoareTripleChecker+Invalid, 1196 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 280 mSolverCounterUnsat, 1201 mSDtfsCounter, 916 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 337 GetRequests, 236 SyntacticMatches, 7 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=582occurred in iteration=9, InterpolantAutomatonStates: 85, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 12 MinimizatonAttempts, 8 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 699 NumberOfCodeBlocks, 699 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 769 ConstructedInterpolants, 0 QuantifiedInterpolants, 1526 SizeOfPredicates, 2 NumberOfNonLiveVariables, 523 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 15 InterpolantComputations, 11 PerfectInterpolantSequences, 67/87 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: 840]: Loop Invariant Derived loop invariant: ((((((((methaneLevelCritical == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel <= 2)) && (pumpRunning == 1)) || (((((pumpRunning == 0) && (1 == systemActive)) && (methaneLevelCritical == 1)) && (splverifierCounter == 0)) && (waterLevel <= 2))) || (((((waterLevel <= 1) && (1 == systemActive)) && (methaneLevelCritical == 1)) && (splverifierCounter == 0)) && (pumpRunning == 1))) || (((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (waterLevel <= 1)) && (1 == systemActive)) && (splverifierCounter == 0))) - InvariantResult [Line: 839]: Location Invariant Derived location invariant: 0 RESULT: Ultimate proved your program to be correct! [2024-11-27 20:06:37,941 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a2d2b5f-dfab-4571-bb60-976e7c466b94/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE