./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product47.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_48f88614-209e-4129-971e-cc0e355c2531/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f88614-209e-4129-971e-cc0e355c2531/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f88614-209e-4129-971e-cc0e355c2531/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f88614-209e-4129-971e-cc0e355c2531/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f88614-209e-4129-971e-cc0e355c2531/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f88614-209e-4129-971e-cc0e355c2531/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 303db4082dd8b7a60cb4b5043655f09159321046818373497160cd54b8948d04 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 14:49:03,711 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 14:49:03,765 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f88614-209e-4129-971e-cc0e355c2531/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 14:49:03,769 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 14:49:03,769 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 14:49:03,788 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 14:49:03,789 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 14:49:03,789 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 14:49:03,789 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 14:49:03,789 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 14:49:03,789 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 14:49:03,790 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 14:49:03,790 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 14:49:03,790 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 14:49:03,790 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 14:49:03,790 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 14:49:03,790 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 14:49:03,790 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 14:49:03,790 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 14:49:03,791 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 14:49:03,791 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 14:49:03,791 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 14:49:03,791 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 14:49:03,791 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 14:49:03,791 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 14:49:03,791 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 14:49:03,791 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 14:49:03,791 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 14:49:03,791 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 14:49:03,792 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:49:03,792 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:49:03,792 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:49:03,792 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:49:03,792 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 14:49:03,792 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:49:03,792 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:49:03,792 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:49:03,792 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:49:03,792 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 14:49:03,793 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 14:49:03,793 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 14:49:03,793 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 14:49:03,793 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 14:49:03,793 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 14:49:03,793 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 14:49:03,793 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 14:49:03,793 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 14:49:03,793 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 14:49:03,793 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_48f88614-209e-4129-971e-cc0e355c2531/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 303db4082dd8b7a60cb4b5043655f09159321046818373497160cd54b8948d04 [2024-12-02 14:49:03,998 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 14:49:04,005 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 14:49:04,008 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 14:49:04,009 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 14:49:04,009 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 14:49:04,010 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f88614-209e-4129-971e-cc0e355c2531/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c [2024-12-02 14:49:06,676 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f88614-209e-4129-971e-cc0e355c2531/bin/uautomizer-verify-84ZbGMXZE1/data/ef681973b/c13fda46be4541a9b79ede09d81a2fa3/FLAGe38d04949 [2024-12-02 14:49:06,862 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 14:49:06,863 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f88614-209e-4129-971e-cc0e355c2531/sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c [2024-12-02 14:49:06,874 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f88614-209e-4129-971e-cc0e355c2531/bin/uautomizer-verify-84ZbGMXZE1/data/ef681973b/c13fda46be4541a9b79ede09d81a2fa3/FLAGe38d04949 [2024-12-02 14:49:06,888 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f88614-209e-4129-971e-cc0e355c2531/bin/uautomizer-verify-84ZbGMXZE1/data/ef681973b/c13fda46be4541a9b79ede09d81a2fa3 [2024-12-02 14:49:06,890 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 14:49:06,891 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 14:49:06,892 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 14:49:06,892 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 14:49:06,896 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 14:49:06,897 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:49:06" (1/1) ... [2024-12-02 14:49:06,898 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4494c8df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:49:06, skipping insertion in model container [2024-12-02 14:49:06,898 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:49:06" (1/1) ... [2024-12-02 14:49:06,926 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 14:49:07,058 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_48f88614-209e-4129-971e-cc0e355c2531/sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c[1605,1618] [2024-12-02 14:49:07,159 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:49:07,168 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 14:49:07,176 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2024-12-02 14:49:07,177 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [58] [2024-12-02 14:49:07,177 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [283] [2024-12-02 14:49:07,177 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [353] [2024-12-02 14:49:07,177 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [454] [2024-12-02 14:49:07,178 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [820] [2024-12-02 14:49:07,178 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [855] [2024-12-02 14:49:07,178 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [905] [2024-12-02 14:49:07,181 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_48f88614-209e-4129-971e-cc0e355c2531/sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c[1605,1618] [2024-12-02 14:49:07,223 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:49:07,240 INFO L204 MainTranslator]: Completed translation [2024-12-02 14:49:07,241 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:49:07 WrapperNode [2024-12-02 14:49:07,241 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 14:49:07,242 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 14:49:07,242 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 14:49:07,242 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 14:49:07,248 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:49:07" (1/1) ... [2024-12-02 14:49:07,257 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:49:07" (1/1) ... [2024-12-02 14:49:07,277 INFO L138 Inliner]: procedures = 57, calls = 104, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 213 [2024-12-02 14:49:07,277 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 14:49:07,278 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 14:49:07,278 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 14:49:07,278 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 14:49:07,287 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:49:07" (1/1) ... [2024-12-02 14:49:07,287 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:49:07" (1/1) ... [2024-12-02 14:49:07,289 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:49:07" (1/1) ... [2024-12-02 14:49:07,302 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 14:49:07,302 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:49:07" (1/1) ... [2024-12-02 14:49:07,302 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:49:07" (1/1) ... [2024-12-02 14:49:07,306 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:49:07" (1/1) ... [2024-12-02 14:49:07,307 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:49:07" (1/1) ... [2024-12-02 14:49:07,311 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:49:07" (1/1) ... [2024-12-02 14:49:07,312 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:49:07" (1/1) ... [2024-12-02 14:49:07,313 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:49:07" (1/1) ... [2024-12-02 14:49:07,315 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 14:49:07,315 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 14:49:07,316 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 14:49:07,316 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 14:49:07,317 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:49:07" (1/1) ... [2024-12-02 14:49:07,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:49:07,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f88614-209e-4129-971e-cc0e355c2531/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:49:07,345 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f88614-209e-4129-971e-cc0e355c2531/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 14:49:07,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f88614-209e-4129-971e-cc0e355c2531/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 14:49:07,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 14:49:07,371 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-12-02 14:49:07,371 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-12-02 14:49:07,371 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-12-02 14:49:07,372 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-12-02 14:49:07,372 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-12-02 14:49:07,372 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-12-02 14:49:07,372 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-12-02 14:49:07,372 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-12-02 14:49:07,372 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2024-12-02 14:49:07,372 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2024-12-02 14:49:07,372 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2024-12-02 14:49:07,372 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2024-12-02 14:49:07,372 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2024-12-02 14:49:07,372 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2024-12-02 14:49:07,372 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-12-02 14:49:07,372 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-12-02 14:49:07,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 14:49:07,372 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-12-02 14:49:07,373 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-12-02 14:49:07,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 14:49:07,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 14:49:07,441 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 14:49:07,443 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 14:49:07,678 INFO L? ?]: Removed 43 outVars from TransFormulas that were not future-live. [2024-12-02 14:49:07,678 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 14:49:07,690 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 14:49:07,690 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-12-02 14:49:07,690 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:49:07 BoogieIcfgContainer [2024-12-02 14:49:07,690 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 14:49:07,692 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 14:49:07,692 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 14:49:07,697 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 14:49:07,697 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:49:06" (1/3) ... [2024-12-02 14:49:07,698 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e390dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:49:07, skipping insertion in model container [2024-12-02 14:49:07,698 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:49:07" (2/3) ... [2024-12-02 14:49:07,698 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e390dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:49:07, skipping insertion in model container [2024-12-02 14:49:07,698 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:49:07" (3/3) ... [2024-12-02 14:49:07,700 INFO L128 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product47.cil.c [2024-12-02 14:49:07,715 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 14:49:07,716 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG minepump_spec5_product47.cil.c that has 10 procedures, 103 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-12-02 14:49:07,771 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 14:49:07,782 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;@6f45be28, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 14:49:07,782 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 14:49:07,786 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 76 states have (on average 1.368421052631579) internal successors, (104), 85 states have internal predecessors, (104), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 14:49:07,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-12-02 14:49:07,794 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:49:07,795 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:49:07,795 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:49:07,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:49:07,799 INFO L85 PathProgramCache]: Analyzing trace with hash 868506466, now seen corresponding path program 1 times [2024-12-02 14:49:07,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:49:07,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039873783] [2024-12-02 14:49:07,805 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:49:07,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:49:07,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:49:07,949 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 14:49:07,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:49:07,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039873783] [2024-12-02 14:49:07,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039873783] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:49:07,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:49:07,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 14:49:07,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637173612] [2024-12-02 14:49:07,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:49:07,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 14:49:07,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:49:07,971 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 14:49:07,972 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 14:49:07,974 INFO L87 Difference]: Start difference. First operand has 103 states, 76 states have (on average 1.368421052631579) internal successors, (104), 85 states have internal predecessors, (104), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 14:49:08,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:49:08,002 INFO L93 Difference]: Finished difference Result 197 states and 266 transitions. [2024-12-02 14:49:08,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 14:49:08,003 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2024-12-02 14:49:08,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:49:08,010 INFO L225 Difference]: With dead ends: 197 [2024-12-02 14:49:08,010 INFO L226 Difference]: Without dead ends: 94 [2024-12-02 14:49:08,012 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 [2024-12-02 14:49:08,015 INFO L435 NwaCegarLoop]: 130 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, 130 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 [2024-12-02 14:49:08,016 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:49:08,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-12-02 14:49:08,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2024-12-02 14:49:08,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 69 states have (on average 1.3043478260869565) internal successors, (90), 77 states have internal predecessors, (90), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 12 states have call predecessors, (15), 15 states have call successors, (15) [2024-12-02 14:49:08,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 121 transitions. [2024-12-02 14:49:08,051 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 121 transitions. Word has length 32 [2024-12-02 14:49:08,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:49:08,051 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 121 transitions. [2024-12-02 14:49:08,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 14:49:08,052 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 121 transitions. [2024-12-02 14:49:08,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-12-02 14:49:08,053 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:49:08,053 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:49:08,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 14:49:08,053 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:49:08,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:49:08,054 INFO L85 PathProgramCache]: Analyzing trace with hash 466465948, now seen corresponding path program 1 times [2024-12-02 14:49:08,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:49:08,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154457602] [2024-12-02 14:49:08,054 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:49:08,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:49:08,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:49:08,165 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 14:49:08,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:49:08,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154457602] [2024-12-02 14:49:08,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154457602] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:49:08,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:49:08,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 14:49:08,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073209200] [2024-12-02 14:49:08,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:49:08,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:49:08,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:49:08,168 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:49:08,168 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:49:08,168 INFO L87 Difference]: Start difference. First operand 94 states and 121 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 14:49:08,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:49:08,188 INFO L93 Difference]: Finished difference Result 151 states and 193 transitions. [2024-12-02 14:49:08,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:49:08,188 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2024-12-02 14:49:08,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:49:08,190 INFO L225 Difference]: With dead ends: 151 [2024-12-02 14:49:08,190 INFO L226 Difference]: Without dead ends: 86 [2024-12-02 14:49:08,190 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:49:08,191 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 16 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:49:08,192 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 198 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:49:08,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-12-02 14:49:08,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2024-12-02 14:49:08,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 64 states have (on average 1.3125) internal successors, (84), 72 states have internal predecessors, (84), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2024-12-02 14:49:08,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 110 transitions. [2024-12-02 14:49:08,202 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 110 transitions. Word has length 32 [2024-12-02 14:49:08,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:49:08,202 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 110 transitions. [2024-12-02 14:49:08,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 14:49:08,202 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 110 transitions. [2024-12-02 14:49:08,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-12-02 14:49:08,204 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:49:08,204 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] [2024-12-02 14:49:08,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 14:49:08,204 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:49:08,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:49:08,204 INFO L85 PathProgramCache]: Analyzing trace with hash 454616413, now seen corresponding path program 1 times [2024-12-02 14:49:08,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:49:08,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569852478] [2024-12-02 14:49:08,205 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:49:08,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:49:08,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:49:08,298 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 14:49:08,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:49:08,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569852478] [2024-12-02 14:49:08,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569852478] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:49:08,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:49:08,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 14:49:08,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860928254] [2024-12-02 14:49:08,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:49:08,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:49:08,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:49:08,300 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:49:08,300 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:49:08,300 INFO L87 Difference]: Start difference. First operand 86 states and 110 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 14:49:08,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:49:08,330 INFO L93 Difference]: Finished difference Result 241 states and 314 transitions. [2024-12-02 14:49:08,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:49:08,331 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 36 [2024-12-02 14:49:08,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:49:08,333 INFO L225 Difference]: With dead ends: 241 [2024-12-02 14:49:08,333 INFO L226 Difference]: Without dead ends: 163 [2024-12-02 14:49:08,333 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:49:08,334 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 86 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:49:08,335 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 224 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:49:08,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2024-12-02 14:49:08,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 160. [2024-12-02 14:49:08,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 117 states have (on average 1.3333333333333333) internal successors, (156), 132 states have internal predecessors, (156), 26 states have call successors, (26), 16 states have call predecessors, (26), 16 states have return successors, (26), 19 states have call predecessors, (26), 26 states have call successors, (26) [2024-12-02 14:49:08,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 208 transitions. [2024-12-02 14:49:08,354 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 208 transitions. Word has length 36 [2024-12-02 14:49:08,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:49:08,354 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 208 transitions. [2024-12-02 14:49:08,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 14:49:08,354 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 208 transitions. [2024-12-02 14:49:08,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-12-02 14:49:08,356 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:49:08,356 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] [2024-12-02 14:49:08,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 14:49:08,357 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:49:08,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:49:08,357 INFO L85 PathProgramCache]: Analyzing trace with hash 2102142547, now seen corresponding path program 1 times [2024-12-02 14:49:08,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:49:08,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999915724] [2024-12-02 14:49:08,357 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:49:08,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:49:08,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:49:08,472 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-02 14:49:08,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:49:08,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999915724] [2024-12-02 14:49:08,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999915724] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:49:08,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:49:08,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 14:49:08,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133388224] [2024-12-02 14:49:08,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:49:08,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 14:49:08,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:49:08,474 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 14:49:08,474 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:49:08,474 INFO L87 Difference]: Start difference. First operand 160 states and 208 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 14:49:08,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:49:08,650 INFO L93 Difference]: Finished difference Result 410 states and 541 transitions. [2024-12-02 14:49:08,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 14:49:08,651 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 40 [2024-12-02 14:49:08,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:49:08,654 INFO L225 Difference]: With dead ends: 410 [2024-12-02 14:49:08,654 INFO L226 Difference]: Without dead ends: 258 [2024-12-02 14:49:08,655 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 14:49:08,656 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 79 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:49:08,656 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 458 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 14:49:08,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2024-12-02 14:49:08,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 257. [2024-12-02 14:49:08,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 190 states have (on average 1.2842105263157895) internal successors, (244), 207 states have internal predecessors, (244), 36 states have call successors, (36), 30 states have call predecessors, (36), 30 states have return successors, (44), 33 states have call predecessors, (44), 36 states have call successors, (44) [2024-12-02 14:49:08,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 324 transitions. [2024-12-02 14:49:08,706 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 324 transitions. Word has length 40 [2024-12-02 14:49:08,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:49:08,706 INFO L471 AbstractCegarLoop]: Abstraction has 257 states and 324 transitions. [2024-12-02 14:49:08,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 14:49:08,707 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 324 transitions. [2024-12-02 14:49:08,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-12-02 14:49:08,708 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:49:08,708 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] [2024-12-02 14:49:08,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 14:49:08,709 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:49:08,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:49:08,709 INFO L85 PathProgramCache]: Analyzing trace with hash -718764182, now seen corresponding path program 1 times [2024-12-02 14:49:08,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:49:08,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259275189] [2024-12-02 14:49:08,710 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:49:08,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:49:08,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:49:08,830 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 14:49:08,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:49:08,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259275189] [2024-12-02 14:49:08,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259275189] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:49:08,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:49:08,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 14:49:08,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742455355] [2024-12-02 14:49:08,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:49:08,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:49:08,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:49:08,831 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:49:08,831 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:49:08,831 INFO L87 Difference]: Start difference. First operand 257 states and 324 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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) [2024-12-02 14:49:09,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:49:09,016 INFO L93 Difference]: Finished difference Result 962 states and 1269 transitions. [2024-12-02 14:49:09,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:49:09,017 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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 58 [2024-12-02 14:49:09,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:49:09,023 INFO L225 Difference]: With dead ends: 962 [2024-12-02 14:49:09,023 INFO L226 Difference]: Without dead ends: 713 [2024-12-02 14:49:09,024 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:49:09,025 INFO L435 NwaCegarLoop]: 202 mSDtfsCounter, 158 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:49:09,026 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 374 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 14:49:09,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2024-12-02 14:49:09,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 694. [2024-12-02 14:49:09,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 517 states have (on average 1.2707930367504836) internal successors, (657), 557 states have internal predecessors, (657), 95 states have call successors, (95), 79 states have call predecessors, (95), 81 states have return successors, (145), 91 states have call predecessors, (145), 95 states have call successors, (145) [2024-12-02 14:49:09,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 897 transitions. [2024-12-02 14:49:09,099 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 897 transitions. Word has length 58 [2024-12-02 14:49:09,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:49:09,099 INFO L471 AbstractCegarLoop]: Abstraction has 694 states and 897 transitions. [2024-12-02 14:49:09,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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) [2024-12-02 14:49:09,100 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 897 transitions. [2024-12-02 14:49:09,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-12-02 14:49:09,102 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:49:09,102 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] [2024-12-02 14:49:09,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 14:49:09,102 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:49:09,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:49:09,103 INFO L85 PathProgramCache]: Analyzing trace with hash -2104967576, now seen corresponding path program 1 times [2024-12-02 14:49:09,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:49:09,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365693038] [2024-12-02 14:49:09,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:49:09,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:49:09,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:49:09,193 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 14:49:09,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:49:09,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365693038] [2024-12-02 14:49:09,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365693038] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:49:09,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:49:09,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:49:09,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19775895] [2024-12-02 14:49:09,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:49:09,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 14:49:09,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:49:09,195 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 14:49:09,195 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:49:09,196 INFO L87 Difference]: Start difference. First operand 694 states and 897 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-12-02 14:49:09,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:49:09,290 INFO L93 Difference]: Finished difference Result 1398 states and 1878 transitions. [2024-12-02 14:49:09,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 14:49:09,290 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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 58 [2024-12-02 14:49:09,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:49:09,296 INFO L225 Difference]: With dead ends: 1398 [2024-12-02 14:49:09,296 INFO L226 Difference]: Without dead ends: 712 [2024-12-02 14:49:09,299 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:49:09,300 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 0 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:49:09,301 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 422 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:49:09,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2024-12-02 14:49:09,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 712. [2024-12-02 14:49:09,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 535 states have (on average 1.2616822429906542) internal successors, (675), 575 states have internal predecessors, (675), 95 states have call successors, (95), 79 states have call predecessors, (95), 81 states have return successors, (145), 91 states have call predecessors, (145), 95 states have call successors, (145) [2024-12-02 14:49:09,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 915 transitions. [2024-12-02 14:49:09,385 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 915 transitions. Word has length 58 [2024-12-02 14:49:09,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:49:09,385 INFO L471 AbstractCegarLoop]: Abstraction has 712 states and 915 transitions. [2024-12-02 14:49:09,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-12-02 14:49:09,386 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 915 transitions. [2024-12-02 14:49:09,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-12-02 14:49:09,388 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:49:09,388 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] [2024-12-02 14:49:09,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 14:49:09,388 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:49:09,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:49:09,389 INFO L85 PathProgramCache]: Analyzing trace with hash -181739542, now seen corresponding path program 1 times [2024-12-02 14:49:09,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:49:09,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934963568] [2024-12-02 14:49:09,389 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:49:09,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:49:09,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:49:09,489 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 14:49:09,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:49:09,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934963568] [2024-12-02 14:49:09,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934963568] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:49:09,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:49:09,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:49:09,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229150458] [2024-12-02 14:49:09,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:49:09,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 14:49:09,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:49:09,491 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 14:49:09,491 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:49:09,491 INFO L87 Difference]: Start difference. First operand 712 states and 915 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-12-02 14:49:09,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:49:09,590 INFO L93 Difference]: Finished difference Result 1297 states and 1709 transitions. [2024-12-02 14:49:09,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 14:49:09,591 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 58 [2024-12-02 14:49:09,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:49:09,595 INFO L225 Difference]: With dead ends: 1297 [2024-12-02 14:49:09,595 INFO L226 Difference]: Without dead ends: 593 [2024-12-02 14:49:09,599 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 14:49:09,599 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 88 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:49:09,600 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 439 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:49:09,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2024-12-02 14:49:09,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 585. [2024-12-02 14:49:09,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 436 states have (on average 1.25) internal successors, (545), 467 states have internal predecessors, (545), 80 states have call successors, (80), 66 states have call predecessors, (80), 68 states have return successors, (116), 76 states have call predecessors, (116), 80 states have call successors, (116) [2024-12-02 14:49:09,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 741 transitions. [2024-12-02 14:49:09,661 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 741 transitions. Word has length 58 [2024-12-02 14:49:09,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:49:09,662 INFO L471 AbstractCegarLoop]: Abstraction has 585 states and 741 transitions. [2024-12-02 14:49:09,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-12-02 14:49:09,662 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 741 transitions. [2024-12-02 14:49:09,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-12-02 14:49:09,664 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:49:09,664 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:49:09,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 14:49:09,664 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:49:09,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:49:09,665 INFO L85 PathProgramCache]: Analyzing trace with hash -201063982, now seen corresponding path program 1 times [2024-12-02 14:49:09,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:49:09,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522340595] [2024-12-02 14:49:09,665 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:49:09,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:49:09,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:49:09,896 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 14:49:09,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:49:09,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522340595] [2024-12-02 14:49:09,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522340595] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:49:09,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:49:09,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 14:49:09,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329598525] [2024-12-02 14:49:09,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:49:09,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 14:49:09,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:49:09,897 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 14:49:09,897 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-12-02 14:49:09,897 INFO L87 Difference]: Start difference. First operand 585 states and 741 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-12-02 14:49:10,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:49:10,456 INFO L93 Difference]: Finished difference Result 1735 states and 2279 transitions. [2024-12-02 14:49:10,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 14:49:10,456 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 62 [2024-12-02 14:49:10,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:49:10,464 INFO L225 Difference]: With dead ends: 1735 [2024-12-02 14:49:10,464 INFO L226 Difference]: Without dead ends: 1259 [2024-12-02 14:49:10,467 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-12-02 14:49:10,467 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 365 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 14:49:10,468 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [372 Valid, 591 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 14:49:10,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1259 states. [2024-12-02 14:49:10,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1259 to 1136. [2024-12-02 14:49:10,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1136 states, 845 states have (on average 1.2284023668639052) internal successors, (1038), 907 states have internal predecessors, (1038), 153 states have call successors, (153), 117 states have call predecessors, (153), 137 states have return successors, (237), 150 states have call predecessors, (237), 153 states have call successors, (237) [2024-12-02 14:49:10,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 1428 transitions. [2024-12-02 14:49:10,565 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 1428 transitions. Word has length 62 [2024-12-02 14:49:10,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:49:10,565 INFO L471 AbstractCegarLoop]: Abstraction has 1136 states and 1428 transitions. [2024-12-02 14:49:10,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-12-02 14:49:10,566 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 1428 transitions. [2024-12-02 14:49:10,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-12-02 14:49:10,568 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:49:10,568 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, 1, 1, 1, 1, 1, 1] [2024-12-02 14:49:10,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 14:49:10,568 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:49:10,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:49:10,569 INFO L85 PathProgramCache]: Analyzing trace with hash 922167942, now seen corresponding path program 1 times [2024-12-02 14:49:10,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:49:10,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252360015] [2024-12-02 14:49:10,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:49:10,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:49:10,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:49:10,632 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-12-02 14:49:10,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:49:10,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252360015] [2024-12-02 14:49:10,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252360015] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:49:10,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:49:10,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 14:49:10,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934695309] [2024-12-02 14:49:10,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:49:10,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:49:10,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:49:10,633 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:49:10,633 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:49:10,633 INFO L87 Difference]: Start difference. First operand 1136 states and 1428 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-12-02 14:49:10,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:49:10,760 INFO L93 Difference]: Finished difference Result 1334 states and 1675 transitions. [2024-12-02 14:49:10,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:49:10,761 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 91 [2024-12-02 14:49:10,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:49:10,765 INFO L225 Difference]: With dead ends: 1334 [2024-12-02 14:49:10,765 INFO L226 Difference]: Without dead ends: 557 [2024-12-02 14:49:10,767 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 [2024-12-02 14:49:10,768 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 141 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:49:10,768 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 265 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 14:49:10,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2024-12-02 14:49:10,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 557. [2024-12-02 14:49:10,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 415 states have (on average 1.1927710843373494) internal successors, (495), 443 states have internal predecessors, (495), 73 states have call successors, (73), 58 states have call predecessors, (73), 68 states have return successors, (115), 73 states have call predecessors, (115), 73 states have call successors, (115) [2024-12-02 14:49:10,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 683 transitions. [2024-12-02 14:49:10,815 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 683 transitions. Word has length 91 [2024-12-02 14:49:10,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:49:10,815 INFO L471 AbstractCegarLoop]: Abstraction has 557 states and 683 transitions. [2024-12-02 14:49:10,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-12-02 14:49:10,816 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 683 transitions. [2024-12-02 14:49:10,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-12-02 14:49:10,817 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:49:10,817 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:49:10,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 14:49:10,818 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:49:10,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:49:10,818 INFO L85 PathProgramCache]: Analyzing trace with hash 408308924, now seen corresponding path program 1 times [2024-12-02 14:49:10,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:49:10,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322618089] [2024-12-02 14:49:10,818 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:49:10,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:49:10,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:49:11,035 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 8 proven. 17 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-12-02 14:49:11,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:49:11,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322618089] [2024-12-02 14:49:11,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322618089] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:49:11,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [398681423] [2024-12-02 14:49:11,035 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:49:11,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:49:11,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f88614-209e-4129-971e-cc0e355c2531/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:49:11,038 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f88614-209e-4129-971e-cc0e355c2531/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:49:11,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f88614-209e-4129-971e-cc0e355c2531/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 14:49:11,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:49:11,154 INFO L256 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 14:49:11,161 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:49:11,372 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 27 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:49:11,372 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 14:49:11,630 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 17 proven. 8 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-12-02 14:49:11,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [398681423] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 14:49:11,630 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 14:49:11,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6, 6] total 15 [2024-12-02 14:49:11,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883429738] [2024-12-02 14:49:11,630 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 14:49:11,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 14:49:11,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:49:11,632 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 14:49:11,632 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-12-02 14:49:11,632 INFO L87 Difference]: Start difference. First operand 557 states and 683 transitions. Second operand has 15 states, 15 states have (on average 9.4) internal successors, (141), 13 states have internal predecessors, (141), 7 states have call successors, (24), 4 states have call predecessors, (24), 8 states have return successors, (22), 9 states have call predecessors, (22), 7 states have call successors, (22) [2024-12-02 14:49:12,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:49:12,196 INFO L93 Difference]: Finished difference Result 1258 states and 1608 transitions. [2024-12-02 14:49:12,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 14:49:12,197 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 9.4) internal successors, (141), 13 states have internal predecessors, (141), 7 states have call successors, (24), 4 states have call predecessors, (24), 8 states have return successors, (22), 9 states have call predecessors, (22), 7 states have call successors, (22) Word has length 104 [2024-12-02 14:49:12,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:49:12,202 INFO L225 Difference]: With dead ends: 1258 [2024-12-02 14:49:12,202 INFO L226 Difference]: Without dead ends: 756 [2024-12-02 14:49:12,204 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 205 SyntacticMatches, 4 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=208, Invalid=604, Unknown=0, NotChecked=0, Total=812 [2024-12-02 14:49:12,204 INFO L435 NwaCegarLoop]: 205 mSDtfsCounter, 299 mSDsluCounter, 1160 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 1365 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 14:49:12,205 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 1365 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 14:49:12,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2024-12-02 14:49:12,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 660. [2024-12-02 14:49:12,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 660 states, 487 states have (on average 1.1848049281314168) internal successors, (577), 524 states have internal predecessors, (577), 88 states have call successors, (88), 76 states have call predecessors, (88), 84 states have return successors, (124), 86 states have call predecessors, (124), 88 states have call successors, (124) [2024-12-02 14:49:12,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 789 transitions. [2024-12-02 14:49:12,248 INFO L78 Accepts]: Start accepts. Automaton has 660 states and 789 transitions. Word has length 104 [2024-12-02 14:49:12,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:49:12,248 INFO L471 AbstractCegarLoop]: Abstraction has 660 states and 789 transitions. [2024-12-02 14:49:12,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 9.4) internal successors, (141), 13 states have internal predecessors, (141), 7 states have call successors, (24), 4 states have call predecessors, (24), 8 states have return successors, (22), 9 states have call predecessors, (22), 7 states have call successors, (22) [2024-12-02 14:49:12,248 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 789 transitions. [2024-12-02 14:49:12,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-12-02 14:49:12,251 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:49:12,252 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-12-02 14:49:12,263 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f88614-209e-4129-971e-cc0e355c2531/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 14:49:12,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f88614-209e-4129-971e-cc0e355c2531/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:49:12,452 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:49:12,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:49:12,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1672823508, now seen corresponding path program 1 times [2024-12-02 14:49:12,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:49:12,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345785855] [2024-12-02 14:49:12,453 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:49:12,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:49:12,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:49:12,828 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 86 proven. 31 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2024-12-02 14:49:12,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:49:12,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345785855] [2024-12-02 14:49:12,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345785855] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:49:12,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1348268873] [2024-12-02 14:49:12,828 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:49:12,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:49:12,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f88614-209e-4129-971e-cc0e355c2531/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:49:12,831 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f88614-209e-4129-971e-cc0e355c2531/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:49:12,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f88614-209e-4129-971e-cc0e355c2531/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 14:49:12,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:49:12,975 INFO L256 TraceCheckSpWp]: Trace formula consists of 549 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 14:49:12,980 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:49:13,239 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 150 proven. 3 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-12-02 14:49:13,239 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 14:49:13,783 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 73 proven. 38 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-12-02 14:49:13,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1348268873] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 14:49:13,783 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 14:49:13,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 11] total 25 [2024-12-02 14:49:13,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363956828] [2024-12-02 14:49:13,783 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 14:49:13,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-12-02 14:49:13,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:49:13,785 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-12-02 14:49:13,785 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=498, Unknown=0, NotChecked=0, Total=600 [2024-12-02 14:49:13,786 INFO L87 Difference]: Start difference. First operand 660 states and 789 transitions. Second operand has 25 states, 25 states have (on average 8.36) internal successors, (209), 22 states have internal predecessors, (209), 10 states have call successors, (34), 5 states have call predecessors, (34), 11 states have return successors, (39), 11 states have call predecessors, (39), 10 states have call successors, (39) [2024-12-02 14:49:15,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:49:15,549 INFO L93 Difference]: Finished difference Result 1911 states and 2406 transitions. [2024-12-02 14:49:15,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-12-02 14:49:15,549 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 8.36) internal successors, (209), 22 states have internal predecessors, (209), 10 states have call successors, (34), 5 states have call predecessors, (34), 11 states have return successors, (39), 11 states have call predecessors, (39), 10 states have call successors, (39) Word has length 187 [2024-12-02 14:49:15,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:49:15,557 INFO L225 Difference]: With dead ends: 1911 [2024-12-02 14:49:15,557 INFO L226 Difference]: Without dead ends: 1229 [2024-12-02 14:49:15,562 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 368 SyntacticMatches, 3 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 982 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=758, Invalid=3664, Unknown=0, NotChecked=0, Total=4422 [2024-12-02 14:49:15,562 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 839 mSDsluCounter, 881 mSDsCounter, 0 mSdLazyCounter, 1730 mSolverCounterSat, 385 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 839 SdHoareTripleChecker+Valid, 979 SdHoareTripleChecker+Invalid, 2115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 385 IncrementalHoareTripleChecker+Valid, 1730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:49:15,563 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [839 Valid, 979 Invalid, 2115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [385 Valid, 1730 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 14:49:15,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2024-12-02 14:49:15,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 1132. [2024-12-02 14:49:15,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1132 states, 847 states have (on average 1.1168831168831168) internal successors, (946), 886 states have internal predecessors, (946), 154 states have call successors, (154), 137 states have call predecessors, (154), 130 states have return successors, (178), 132 states have call predecessors, (178), 154 states have call successors, (178) [2024-12-02 14:49:15,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1132 states to 1132 states and 1278 transitions. [2024-12-02 14:49:15,669 INFO L78 Accepts]: Start accepts. Automaton has 1132 states and 1278 transitions. Word has length 187 [2024-12-02 14:49:15,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:49:15,670 INFO L471 AbstractCegarLoop]: Abstraction has 1132 states and 1278 transitions. [2024-12-02 14:49:15,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 8.36) internal successors, (209), 22 states have internal predecessors, (209), 10 states have call successors, (34), 5 states have call predecessors, (34), 11 states have return successors, (39), 11 states have call predecessors, (39), 10 states have call successors, (39) [2024-12-02 14:49:15,670 INFO L276 IsEmpty]: Start isEmpty. Operand 1132 states and 1278 transitions. [2024-12-02 14:49:15,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2024-12-02 14:49:15,673 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:49:15,673 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:49:15,681 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f88614-209e-4129-971e-cc0e355c2531/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 14:49:15,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f88614-209e-4129-971e-cc0e355c2531/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:49:15,874 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:49:15,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:49:15,875 INFO L85 PathProgramCache]: Analyzing trace with hash -342331762, now seen corresponding path program 1 times [2024-12-02 14:49:15,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:49:15,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462410465] [2024-12-02 14:49:15,875 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:49:15,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:49:15,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:49:16,221 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 85 proven. 64 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2024-12-02 14:49:16,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:49:16,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462410465] [2024-12-02 14:49:16,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462410465] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:49:16,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [123408621] [2024-12-02 14:49:16,221 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:49:16,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:49:16,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f88614-209e-4129-971e-cc0e355c2531/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:49:16,223 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f88614-209e-4129-971e-cc0e355c2531/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:49:16,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f88614-209e-4129-971e-cc0e355c2531/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 14:49:16,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:49:16,375 INFO L256 TraceCheckSpWp]: Trace formula consists of 607 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-02 14:49:16,380 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:49:16,548 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 190 proven. 9 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-12-02 14:49:16,549 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 14:49:17,003 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 94 proven. 54 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-12-02 14:49:17,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [123408621] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 14:49:17,003 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 14:49:17,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8] total 23 [2024-12-02 14:49:17,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399561749] [2024-12-02 14:49:17,004 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 14:49:17,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-12-02 14:49:17,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:49:17,006 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-12-02 14:49:17,006 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=425, Unknown=0, NotChecked=0, Total=506 [2024-12-02 14:49:17,006 INFO L87 Difference]: Start difference. First operand 1132 states and 1278 transitions. Second operand has 23 states, 23 states have (on average 10.304347826086957) internal successors, (237), 20 states have internal predecessors, (237), 9 states have call successors, (44), 5 states have call predecessors, (44), 14 states have return successors, (44), 12 states have call predecessors, (44), 9 states have call successors, (44) [2024-12-02 14:49:17,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:49:17,754 INFO L93 Difference]: Finished difference Result 2215 states and 2520 transitions. [2024-12-02 14:49:17,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 14:49:17,754 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 10.304347826086957) internal successors, (237), 20 states have internal predecessors, (237), 9 states have call successors, (44), 5 states have call predecessors, (44), 14 states have return successors, (44), 12 states have call predecessors, (44), 9 states have call successors, (44) Word has length 211 [2024-12-02 14:49:17,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:49:17,762 INFO L225 Difference]: With dead ends: 2215 [2024-12-02 14:49:17,762 INFO L226 Difference]: Without dead ends: 1185 [2024-12-02 14:49:17,765 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 455 GetRequests, 418 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=299, Invalid=1107, Unknown=0, NotChecked=0, Total=1406 [2024-12-02 14:49:17,766 INFO L435 NwaCegarLoop]: 106 mSDtfsCounter, 447 mSDsluCounter, 660 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 14:49:17,766 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [451 Valid, 766 Invalid, 886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 14:49:17,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1185 states. [2024-12-02 14:49:17,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1185 to 1123. [2024-12-02 14:49:17,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1123 states, 843 states have (on average 1.1091340450771057) internal successors, (935), 879 states have internal predecessors, (935), 145 states have call successors, (145), 138 states have call predecessors, (145), 134 states have return successors, (169), 129 states have call predecessors, (169), 145 states have call successors, (169) [2024-12-02 14:49:17,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1123 states to 1123 states and 1249 transitions. [2024-12-02 14:49:17,889 INFO L78 Accepts]: Start accepts. Automaton has 1123 states and 1249 transitions. Word has length 211 [2024-12-02 14:49:17,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:49:17,890 INFO L471 AbstractCegarLoop]: Abstraction has 1123 states and 1249 transitions. [2024-12-02 14:49:17,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 10.304347826086957) internal successors, (237), 20 states have internal predecessors, (237), 9 states have call successors, (44), 5 states have call predecessors, (44), 14 states have return successors, (44), 12 states have call predecessors, (44), 9 states have call successors, (44) [2024-12-02 14:49:17,890 INFO L276 IsEmpty]: Start isEmpty. Operand 1123 states and 1249 transitions. [2024-12-02 14:49:17,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-12-02 14:49:17,895 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:49:17,895 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:49:17,905 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f88614-209e-4129-971e-cc0e355c2531/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 14:49:18,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f88614-209e-4129-971e-cc0e355c2531/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:49:18,096 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:49:18,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:49:18,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1295119437, now seen corresponding path program 1 times [2024-12-02 14:49:18,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:49:18,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123406936] [2024-12-02 14:49:18,096 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:49:18,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:49:18,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:49:18,733 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 90 proven. 56 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-12-02 14:49:18,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:49:18,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123406936] [2024-12-02 14:49:18,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123406936] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:49:18,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1634687216] [2024-12-02 14:49:18,733 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:49:18,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:49:18,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f88614-209e-4129-971e-cc0e355c2531/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:49:18,735 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f88614-209e-4129-971e-cc0e355c2531/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:49:18,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f88614-209e-4129-971e-cc0e355c2531/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 14:49:18,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:49:18,894 INFO L256 TraceCheckSpWp]: Trace formula consists of 607 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 14:49:18,900 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:49:19,122 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 134 proven. 25 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-12-02 14:49:19,122 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 14:49:19,773 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 95 proven. 44 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-12-02 14:49:19,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1634687216] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 14:49:19,773 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 14:49:19,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 13] total 21 [2024-12-02 14:49:19,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369666534] [2024-12-02 14:49:19,773 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 14:49:19,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-12-02 14:49:19,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:49:19,775 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-12-02 14:49:19,776 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2024-12-02 14:49:19,776 INFO L87 Difference]: Start difference. First operand 1123 states and 1249 transitions. Second operand has 21 states, 21 states have (on average 11.333333333333334) internal successors, (238), 20 states have internal predecessors, (238), 15 states have call successors, (47), 8 states have call predecessors, (47), 14 states have return successors, (46), 15 states have call predecessors, (46), 15 states have call successors, (46) [2024-12-02 14:49:20,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:49:20,612 INFO L93 Difference]: Finished difference Result 2165 states and 2451 transitions. [2024-12-02 14:49:20,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-12-02 14:49:20,613 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 11.333333333333334) internal successors, (238), 20 states have internal predecessors, (238), 15 states have call successors, (47), 8 states have call predecessors, (47), 14 states have return successors, (46), 15 states have call predecessors, (46), 15 states have call successors, (46) Word has length 212 [2024-12-02 14:49:20,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:49:20,621 INFO L225 Difference]: With dead ends: 2165 [2024-12-02 14:49:20,621 INFO L226 Difference]: Without dead ends: 1531 [2024-12-02 14:49:20,624 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 461 GetRequests, 418 SyntacticMatches, 8 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=389, Invalid=943, Unknown=0, NotChecked=0, Total=1332 [2024-12-02 14:49:20,625 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 621 mSDsluCounter, 697 mSDsCounter, 0 mSdLazyCounter, 1000 mSolverCounterSat, 234 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 624 SdHoareTripleChecker+Valid, 846 SdHoareTripleChecker+Invalid, 1234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 234 IncrementalHoareTripleChecker+Valid, 1000 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 14:49:20,625 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [624 Valid, 846 Invalid, 1234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [234 Valid, 1000 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 14:49:20,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1531 states. [2024-12-02 14:49:20,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1531 to 1395. [2024-12-02 14:49:20,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1395 states, 1047 states have (on average 1.1021967526265521) internal successors, (1154), 1085 states have internal predecessors, (1154), 183 states have call successors, (183), 174 states have call predecessors, (183), 164 states have return successors, (200), 163 states have call predecessors, (200), 183 states have call successors, (200) [2024-12-02 14:49:20,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1395 states to 1395 states and 1537 transitions. [2024-12-02 14:49:20,801 INFO L78 Accepts]: Start accepts. Automaton has 1395 states and 1537 transitions. Word has length 212 [2024-12-02 14:49:20,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:49:20,802 INFO L471 AbstractCegarLoop]: Abstraction has 1395 states and 1537 transitions. [2024-12-02 14:49:20,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 11.333333333333334) internal successors, (238), 20 states have internal predecessors, (238), 15 states have call successors, (47), 8 states have call predecessors, (47), 14 states have return successors, (46), 15 states have call predecessors, (46), 15 states have call successors, (46) [2024-12-02 14:49:20,802 INFO L276 IsEmpty]: Start isEmpty. Operand 1395 states and 1537 transitions. [2024-12-02 14:49:20,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2024-12-02 14:49:20,808 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:49:20,809 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:49:20,819 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f88614-209e-4129-971e-cc0e355c2531/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 14:49:21,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f88614-209e-4129-971e-cc0e355c2531/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-12-02 14:49:21,010 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:49:21,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:49:21,010 INFO L85 PathProgramCache]: Analyzing trace with hash -802018879, now seen corresponding path program 1 times [2024-12-02 14:49:21,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:49:21,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963424434] [2024-12-02 14:49:21,010 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:49:21,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:49:21,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:49:21,766 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 93 proven. 135 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2024-12-02 14:49:21,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:49:21,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963424434] [2024-12-02 14:49:21,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963424434] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:49:21,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [296195125] [2024-12-02 14:49:21,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:49:21,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:49:21,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f88614-209e-4129-971e-cc0e355c2531/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:49:21,768 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f88614-209e-4129-971e-cc0e355c2531/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:49:21,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f88614-209e-4129-971e-cc0e355c2531/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 14:49:21,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:49:21,937 INFO L256 TraceCheckSpWp]: Trace formula consists of 728 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-12-02 14:49:21,943 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:49:22,308 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 150 proven. 87 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2024-12-02 14:49:22,308 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 14:49:23,172 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 91 proven. 134 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2024-12-02 14:49:23,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [296195125] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 14:49:23,173 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 14:49:23,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11, 16] total 29 [2024-12-02 14:49:23,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828179129] [2024-12-02 14:49:23,173 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 14:49:23,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-12-02 14:49:23,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:49:23,175 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-12-02 14:49:23,176 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=664, Unknown=0, NotChecked=0, Total=812 [2024-12-02 14:49:23,176 INFO L87 Difference]: Start difference. First operand 1395 states and 1537 transitions. Second operand has 29 states, 29 states have (on average 10.448275862068966) internal successors, (303), 28 states have internal predecessors, (303), 19 states have call successors, (63), 11 states have call predecessors, (63), 20 states have return successors, (65), 19 states have call predecessors, (65), 19 states have call successors, (65) [2024-12-02 14:49:24,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:49:24,112 INFO L93 Difference]: Finished difference Result 2262 states and 2508 transitions. [2024-12-02 14:49:24,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-12-02 14:49:24,113 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 10.448275862068966) internal successors, (303), 28 states have internal predecessors, (303), 19 states have call successors, (63), 11 states have call predecessors, (63), 20 states have return successors, (65), 19 states have call predecessors, (65), 19 states have call successors, (65) Word has length 261 [2024-12-02 14:49:24,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:49:24,115 INFO L225 Difference]: With dead ends: 2262 [2024-12-02 14:49:24,115 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 14:49:24,117 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 564 GetRequests, 511 SyntacticMatches, 9 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=459, Invalid=1611, Unknown=0, NotChecked=0, Total=2070 [2024-12-02 14:49:24,117 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 843 mSDsluCounter, 1144 mSDsCounter, 0 mSdLazyCounter, 1611 mSolverCounterSat, 373 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 845 SdHoareTripleChecker+Valid, 1283 SdHoareTripleChecker+Invalid, 1984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 373 IncrementalHoareTripleChecker+Valid, 1611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 14:49:24,118 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [845 Valid, 1283 Invalid, 1984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [373 Valid, 1611 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 14:49:24,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 14:49:24,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 14:49:24,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:49:24,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 14:49:24,119 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 261 [2024-12-02 14:49:24,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:49:24,119 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 14:49:24,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 10.448275862068966) internal successors, (303), 28 states have internal predecessors, (303), 19 states have call successors, (63), 11 states have call predecessors, (63), 20 states have return successors, (65), 19 states have call predecessors, (65), 19 states have call successors, (65) [2024-12-02 14:49:24,120 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 14:49:24,120 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 14:49:24,122 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 14:49:24,129 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f88614-209e-4129-971e-cc0e355c2531/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 14:49:24,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f88614-209e-4129-971e-cc0e355c2531/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-12-02 14:49:24,324 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:49:24,325 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-12-02 14:49:38,068 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 14:49:38,080 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:49:38 BoogieIcfgContainer [2024-12-02 14:49:38,081 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 14:49:38,081 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 14:49:38,081 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 14:49:38,082 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 14:49:38,082 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:49:07" (3/4) ... [2024-12-02 14:49:38,085 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 14:49:38,090 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-12-02 14:49:38,090 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-12-02 14:49:38,090 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-12-02 14:49:38,090 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-12-02 14:49:38,090 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-12-02 14:49:38,090 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-12-02 14:49:38,090 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2024-12-02 14:49:38,090 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2024-12-02 14:49:38,090 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2024-12-02 14:49:38,096 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2024-12-02 14:49:38,096 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-12-02 14:49:38,097 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-12-02 14:49:38,097 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 14:49:38,097 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 14:49:38,186 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f88614-209e-4129-971e-cc0e355c2531/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 14:49:38,186 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f88614-209e-4129-971e-cc0e355c2531/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 14:49:38,186 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 14:49:38,187 INFO L158 Benchmark]: Toolchain (without parser) took 31295.80ms. Allocated memory was 117.4MB in the beginning and 385.9MB in the end (delta: 268.4MB). Free memory was 91.9MB in the beginning and 172.8MB in the end (delta: -81.0MB). Peak memory consumption was 188.2MB. Max. memory is 16.1GB. [2024-12-02 14:49:38,187 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory is still 71.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 14:49:38,187 INFO L158 Benchmark]: CACSL2BoogieTranslator took 348.95ms. Allocated memory is still 117.4MB. Free memory was 91.7MB in the beginning and 72.8MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 14:49:38,188 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.92ms. Allocated memory is still 117.4MB. Free memory was 72.8MB in the beginning and 70.9MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 14:49:38,188 INFO L158 Benchmark]: Boogie Preprocessor took 36.99ms. Allocated memory is still 117.4MB. Free memory was 70.9MB in the beginning and 69.0MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 14:49:38,188 INFO L158 Benchmark]: RCFGBuilder took 374.84ms. Allocated memory is still 117.4MB. Free memory was 69.0MB in the beginning and 52.0MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 14:49:38,188 INFO L158 Benchmark]: TraceAbstraction took 30388.27ms. Allocated memory was 117.4MB in the beginning and 385.9MB in the end (delta: 268.4MB). Free memory was 51.4MB in the beginning and 177.1MB in the end (delta: -125.7MB). Peak memory consumption was 192.5MB. Max. memory is 16.1GB. [2024-12-02 14:49:38,188 INFO L158 Benchmark]: Witness Printer took 104.88ms. Allocated memory is still 385.9MB. Free memory was 177.1MB in the beginning and 172.8MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 14:49:38,190 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory is still 71.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 348.95ms. Allocated memory is still 117.4MB. Free memory was 91.7MB in the beginning and 72.8MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.92ms. Allocated memory is still 117.4MB. Free memory was 72.8MB in the beginning and 70.9MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.99ms. Allocated memory is still 117.4MB. Free memory was 70.9MB in the beginning and 69.0MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 374.84ms. Allocated memory is still 117.4MB. Free memory was 69.0MB in the beginning and 52.0MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 30388.27ms. Allocated memory was 117.4MB in the beginning and 385.9MB in the end (delta: 268.4MB). Free memory was 51.4MB in the beginning and 177.1MB in the end (delta: -125.7MB). Peak memory consumption was 192.5MB. Max. memory is 16.1GB. * Witness Printer took 104.88ms. Allocated memory is still 385.9MB. Free memory was 177.1MB in the beginning and 172.8MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] - GenericResultAtLocation [Line: 58]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [58] - GenericResultAtLocation [Line: 283]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [283] - GenericResultAtLocation [Line: 353]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [353] - GenericResultAtLocation [Line: 454]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [454] - GenericResultAtLocation [Line: 820]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [820] - GenericResultAtLocation [Line: 855]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [855] - GenericResultAtLocation [Line: 905]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [905] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 54]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 103 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 16.6s, OverallIterations: 14, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4006 SdHoareTripleChecker+Valid, 3.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3982 mSDsluCounter, 8340 SdHoareTripleChecker+Invalid, 3.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6459 mSDsCounter, 1372 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5998 IncrementalHoareTripleChecker+Invalid, 7370 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1372 mSolverCounterUnsat, 1881 mSDtfsCounter, 5998 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2209 GetRequests, 1945 SyntacticMatches, 25 SemanticMatches, 239 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2103 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1395occurred in iteration=13, InterpolantAutomatonStates: 169, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 14 MinimizatonAttempts, 545 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 7.0s InterpolantComputationTime, 2417 NumberOfCodeBlocks, 2417 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 3368 ConstructedInterpolants, 0 QuantifiedInterpolants, 7947 SizeOfPredicates, 5 NumberOfNonLiveVariables, 2830 ConjunctsInSsa, 79 ConjunctsInUnsatCore, 24 InterpolantComputations, 9 PerfectInterpolantSequences, 2897/3611 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: 365]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 297]: Loop Invariant Derived loop invariant: ((((((((((pumpRunning == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel == 0)) || (((((2 == waterLevel) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (splverifierCounter == 0)) && (pumpRunning == 1))) || ((((pumpRunning == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel == 1))) || ((((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0))) || ((((((methaneLevelCritical == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel == 1)) && (1 <= switchedOnBeforeTS)) && (pumpRunning == 1))) || (((pumpRunning == 0) && (splverifierCounter == 0)) && (0 == systemActive))) || ((((((methaneLevelCritical == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (1 <= switchedOnBeforeTS)) && (waterLevel == 0)) && (pumpRunning == 1))) - InvariantResult [Line: 296]: Location Invariant Derived location invariant: 0 RESULT: Ultimate proved your program to be correct! [2024-12-02 14:49:38,210 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f88614-209e-4129-971e-cc0e355c2531/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE