./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX --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 242c9b24ea8c293cca4af0028144a97f9048375edcd4379fb21e62564563d3d5 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:13:20,235 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:13:20,333 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 18:13:20,344 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:13:20,348 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:13:20,413 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:13:20,414 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:13:20,415 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:13:20,415 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:13:20,416 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:13:20,416 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:13:20,417 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:13:20,418 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:13:20,418 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:13:20,419 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:13:20,420 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:13:20,420 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:13:20,425 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:13:20,425 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:13:20,426 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:13:20,426 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:13:20,431 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:13:20,431 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:13:20,432 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:13:20,432 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:13:20,432 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:13:20,433 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:13:20,450 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:13:20,451 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:13:20,452 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:13:20,452 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:13:20,453 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:13:20,454 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:13:20,454 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:13:20,455 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:13:20,456 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:13:20,456 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:13:20,456 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:13:20,457 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:13:20,457 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:13:20,457 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:13:20,458 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:13:20,458 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 242c9b24ea8c293cca4af0028144a97f9048375edcd4379fb21e62564563d3d5 [2024-11-08 18:13:20,834 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:13:20,900 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:13:20,903 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:13:20,905 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:13:20,906 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:13:20,908 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c Unable to find full path for "g++" [2024-11-08 18:13:23,420 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:13:23,837 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:13:23,838 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c [2024-11-08 18:13:23,857 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/data/6dbe3bee5/37744206955b46e8adaf57c3c68ff312/FLAG8fe291201 [2024-11-08 18:13:24,029 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/data/6dbe3bee5/37744206955b46e8adaf57c3c68ff312 [2024-11-08 18:13:24,038 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:13:24,040 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:13:24,042 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:13:24,043 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:13:24,051 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:13:24,052 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:13:24" (1/1) ... [2024-11-08 18:13:24,053 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37defda9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:13:24, skipping insertion in model container [2024-11-08 18:13:24,054 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:13:24" (1/1) ... [2024-11-08 18:13:24,206 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:13:24,611 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_129f56e7-edcc-4ccc-887c-99d23bef66d6/sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c[9329,9342] [2024-11-08 18:13:24,741 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:13:24,761 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:13:24,775 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [49] [2024-11-08 18:13:24,777 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [121] [2024-11-08 18:13:24,777 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [343] [2024-11-08 18:13:24,778 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [383] [2024-11-08 18:13:24,778 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [421] [2024-11-08 18:13:24,778 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [525] [2024-11-08 18:13:24,779 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [622] [2024-11-08 18:13:24,779 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [631] [2024-11-08 18:13:24,846 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_129f56e7-edcc-4ccc-887c-99d23bef66d6/sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c[9329,9342] [2024-11-08 18:13:24,909 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:13:24,937 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:13:24,937 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:13:24 WrapperNode [2024-11-08 18:13:24,938 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:13:24,939 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:13:24,940 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:13:24,940 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:13:24,949 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:13:24" (1/1) ... [2024-11-08 18:13:24,964 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:13:24" (1/1) ... [2024-11-08 18:13:24,999 INFO L138 Inliner]: procedures = 57, calls = 101, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 208 [2024-11-08 18:13:24,999 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:13:25,000 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:13:25,001 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:13:25,001 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:13:25,019 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:13:24" (1/1) ... [2024-11-08 18:13:25,020 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:13:24" (1/1) ... [2024-11-08 18:13:25,022 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:13:24" (1/1) ... [2024-11-08 18:13:25,051 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 18:13:25,051 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:13:24" (1/1) ... [2024-11-08 18:13:25,051 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:13:24" (1/1) ... [2024-11-08 18:13:25,063 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:13:24" (1/1) ... [2024-11-08 18:13:25,069 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:13:24" (1/1) ... [2024-11-08 18:13:25,071 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:13:24" (1/1) ... [2024-11-08 18:13:25,072 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:13:24" (1/1) ... [2024-11-08 18:13:25,075 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:13:25,076 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:13:25,077 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:13:25,077 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:13:25,078 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:13:24" (1/1) ... [2024-11-08 18:13:25,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:13:25,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:13:25,122 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:13:25,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:13:25,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:13:25,170 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-08 18:13:25,170 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-08 18:13:25,171 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2024-11-08 18:13:25,171 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2024-11-08 18:13:25,171 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-08 18:13:25,171 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-08 18:13:25,171 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-08 18:13:25,172 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-08 18:13:25,172 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-11-08 18:13:25,172 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-11-08 18:13:25,173 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-08 18:13:25,173 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-08 18:13:25,173 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-11-08 18:13:25,173 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-11-08 18:13:25,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:13:25,174 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-08 18:13:25,174 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-08 18:13:25,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:13:25,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:13:25,286 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:13:25,289 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:13:25,710 INFO L? ?]: Removed 45 outVars from TransFormulas that were not future-live. [2024-11-08 18:13:25,710 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:13:25,733 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:13:25,737 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-08 18:13:25,738 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:13:25 BoogieIcfgContainer [2024-11-08 18:13:25,738 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:13:25,741 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:13:25,742 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:13:25,746 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:13:25,746 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:13:24" (1/3) ... [2024-11-08 18:13:25,747 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f14bd52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:13:25, skipping insertion in model container [2024-11-08 18:13:25,748 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:13:24" (2/3) ... [2024-11-08 18:13:25,748 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f14bd52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:13:25, skipping insertion in model container [2024-11-08 18:13:25,749 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:13:25" (3/3) ... [2024-11-08 18:13:25,750 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product51.cil.c [2024-11-08 18:13:25,773 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:13:25,774 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 18:13:25,853 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:13:25,863 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;@56511902, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:13:25,863 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 18:13:25,870 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 72 states have (on average 1.3888888888888888) internal successors, (100), 81 states have internal predecessors, (100), 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) [2024-11-08 18:13:25,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-08 18:13:25,881 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:13:25,882 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:13:25,883 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:13:25,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:13:25,889 INFO L85 PathProgramCache]: Analyzing trace with hash 550637774, now seen corresponding path program 1 times [2024-11-08 18:13:25,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:13:25,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337498193] [2024-11-08 18:13:25,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:13:25,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:13:26,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:26,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 18:13:26,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:26,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:13:26,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:13:26,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337498193] [2024-11-08 18:13:26,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337498193] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:13:26,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:13:26,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:13:26,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245789937] [2024-11-08 18:13:26,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:13:26,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 18:13:26,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:13:26,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 18:13:26,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 18:13:26,211 INFO L87 Difference]: Start difference. First operand has 95 states, 72 states have (on average 1.3888888888888888) internal successors, (100), 81 states have internal predecessors, (100), 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) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:13:26,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:13:26,254 INFO L93 Difference]: Finished difference Result 181 states and 246 transitions. [2024-11-08 18:13:26,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 18:13:26,257 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-11-08 18:13:26,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:13:26,271 INFO L225 Difference]: With dead ends: 181 [2024-11-08 18:13:26,271 INFO L226 Difference]: Without dead ends: 86 [2024-11-08 18:13:26,277 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 18:13:26,283 INFO L432 NwaCegarLoop]: 120 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, 120 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:13:26,285 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:13:26,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-08 18:13:26,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2024-11-08 18:13:26,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 65 states have (on average 1.323076923076923) internal successors, (86), 73 states have internal predecessors, (86), 13 states have call successors, (13), 8 states have call predecessors, (13), 7 states have return successors, (12), 9 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-08 18:13:26,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 111 transitions. [2024-11-08 18:13:26,354 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 111 transitions. Word has length 25 [2024-11-08 18:13:26,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:13:26,355 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 111 transitions. [2024-11-08 18:13:26,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:13:26,356 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 111 transitions. [2024-11-08 18:13:26,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-08 18:13:26,359 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:13:26,359 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:13:26,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:13:26,360 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:13:26,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:13:26,361 INFO L85 PathProgramCache]: Analyzing trace with hash 181873087, now seen corresponding path program 1 times [2024-11-08 18:13:26,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:13:26,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499018638] [2024-11-08 18:13:26,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:13:26,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:13:26,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:26,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 18:13:26,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:26,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:13:26,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:13:26,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499018638] [2024-11-08 18:13:26,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499018638] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:13:26,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:13:26,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:13:26,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538503264] [2024-11-08 18:13:26,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:13:26,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:13:26,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:13:26,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:13:26,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:13:26,619 INFO L87 Difference]: Start difference. First operand 86 states and 111 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:13:26,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:13:26,656 INFO L93 Difference]: Finished difference Result 133 states and 171 transitions. [2024-11-08 18:13:26,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:13:26,658 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2024-11-08 18:13:26,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:13:26,661 INFO L225 Difference]: With dead ends: 133 [2024-11-08 18:13:26,662 INFO L226 Difference]: Without dead ends: 77 [2024-11-08 18:13:26,664 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:13:26,668 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 16 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:13:26,668 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 175 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:13:26,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-11-08 18:13:26,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2024-11-08 18:13:26,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 59 states have (on average 1.3389830508474576) internal successors, (79), 67 states have internal predecessors, (79), 10 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (10), 7 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-08 18:13:26,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 99 transitions. [2024-11-08 18:13:26,693 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 99 transitions. Word has length 26 [2024-11-08 18:13:26,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:13:26,694 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 99 transitions. [2024-11-08 18:13:26,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:13:26,695 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 99 transitions. [2024-11-08 18:13:26,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-08 18:13:26,699 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:13:26,699 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:13:26,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 18:13:26,700 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:13:26,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:13:26,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1203449364, now seen corresponding path program 1 times [2024-11-08 18:13:26,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:13:26,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035138849] [2024-11-08 18:13:26,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:13:26,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:13:26,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:26,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:13:26,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:27,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:13:27,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:13:27,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035138849] [2024-11-08 18:13:27,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035138849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:13:27,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:13:27,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:13:27,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605393311] [2024-11-08 18:13:27,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:13:27,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:13:27,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:13:27,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:13:27,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:13:27,014 INFO L87 Difference]: Start difference. First operand 77 states and 99 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:13:27,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:13:27,361 INFO L93 Difference]: Finished difference Result 257 states and 338 transitions. [2024-11-08 18:13:27,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:13:27,362 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2024-11-08 18:13:27,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:13:27,368 INFO L225 Difference]: With dead ends: 257 [2024-11-08 18:13:27,369 INFO L226 Difference]: Without dead ends: 188 [2024-11-08 18:13:27,370 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:13:27,371 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 231 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:13:27,376 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 412 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:13:27,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2024-11-08 18:13:27,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 182. [2024-11-08 18:13:27,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 137 states have (on average 1.3722627737226278) internal successors, (188), 155 states have internal predecessors, (188), 25 states have call successors, (25), 19 states have call predecessors, (25), 19 states have return successors, (26), 17 states have call predecessors, (26), 25 states have call successors, (26) [2024-11-08 18:13:27,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 239 transitions. [2024-11-08 18:13:27,435 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 239 transitions. Word has length 30 [2024-11-08 18:13:27,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:13:27,436 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 239 transitions. [2024-11-08 18:13:27,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:13:27,437 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 239 transitions. [2024-11-08 18:13:27,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-08 18:13:27,439 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:13:27,439 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:13:27,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 18:13:27,440 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:13:27,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:13:27,441 INFO L85 PathProgramCache]: Analyzing trace with hash 159405918, now seen corresponding path program 1 times [2024-11-08 18:13:27,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:13:27,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140213805] [2024-11-08 18:13:27,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:13:27,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:13:27,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:27,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 18:13:27,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:27,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:13:27,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:13:27,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140213805] [2024-11-08 18:13:27,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140213805] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:13:27,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:13:27,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:13:27,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721283397] [2024-11-08 18:13:27,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:13:27,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:13:27,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:13:27,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:13:27,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:13:27,732 INFO L87 Difference]: Start difference. First operand 182 states and 239 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:13:27,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:13:27,864 INFO L93 Difference]: Finished difference Result 431 states and 580 transitions. [2024-11-08 18:13:27,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:13:27,865 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34 [2024-11-08 18:13:27,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:13:27,872 INFO L225 Difference]: With dead ends: 431 [2024-11-08 18:13:27,872 INFO L226 Difference]: Without dead ends: 257 [2024-11-08 18:13:27,874 INFO L431 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 [2024-11-08 18:13:27,880 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 48 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:13:27,880 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 348 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:13:27,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2024-11-08 18:13:27,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 255. [2024-11-08 18:13:27,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 192 states have (on average 1.3125) internal successors, (252), 209 states have internal predecessors, (252), 32 states have call successors, (32), 30 states have call predecessors, (32), 30 states have return successors, (42), 29 states have call predecessors, (42), 32 states have call successors, (42) [2024-11-08 18:13:27,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 326 transitions. [2024-11-08 18:13:27,962 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 326 transitions. Word has length 34 [2024-11-08 18:13:27,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:13:27,965 INFO L471 AbstractCegarLoop]: Abstraction has 255 states and 326 transitions. [2024-11-08 18:13:27,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:13:27,966 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 326 transitions. [2024-11-08 18:13:27,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-08 18:13:27,970 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:13:27,971 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:13:27,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 18:13:27,971 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:13:27,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:13:27,972 INFO L85 PathProgramCache]: Analyzing trace with hash 576803450, now seen corresponding path program 1 times [2024-11-08 18:13:27,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:13:27,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393511493] [2024-11-08 18:13:27,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:13:27,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:13:28,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:28,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:13:28,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:28,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-08 18:13:28,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:28,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:13:28,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:13:28,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393511493] [2024-11-08 18:13:28,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393511493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:13:28,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:13:28,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:13:28,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271334943] [2024-11-08 18:13:28,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:13:28,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:13:28,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:13:28,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:13:28,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:13:28,191 INFO L87 Difference]: Start difference. First operand 255 states and 326 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 18:13:28,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:13:28,572 INFO L93 Difference]: Finished difference Result 761 states and 1023 transitions. [2024-11-08 18:13:28,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:13:28,573 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2024-11-08 18:13:28,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:13:28,579 INFO L225 Difference]: With dead ends: 761 [2024-11-08 18:13:28,582 INFO L226 Difference]: Without dead ends: 514 [2024-11-08 18:13:28,584 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:13:28,585 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 143 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:13:28,590 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 344 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:13:28,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2024-11-08 18:13:28,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 505. [2024-11-08 18:13:28,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 385 states have (on average 1.2857142857142858) internal successors, (495), 408 states have internal predecessors, (495), 61 states have call successors, (61), 55 states have call predecessors, (61), 58 states have return successors, (93), 59 states have call predecessors, (93), 61 states have call successors, (93) [2024-11-08 18:13:28,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 649 transitions. [2024-11-08 18:13:28,702 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 649 transitions. Word has length 44 [2024-11-08 18:13:28,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:13:28,702 INFO L471 AbstractCegarLoop]: Abstraction has 505 states and 649 transitions. [2024-11-08 18:13:28,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 18:13:28,703 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 649 transitions. [2024-11-08 18:13:28,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-08 18:13:28,705 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:13:28,706 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:13:28,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 18:13:28,706 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:13:28,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:13:28,707 INFO L85 PathProgramCache]: Analyzing trace with hash 154101624, now seen corresponding path program 1 times [2024-11-08 18:13:28,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:13:28,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74898670] [2024-11-08 18:13:28,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:13:28,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:13:28,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:28,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:13:28,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:28,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-08 18:13:28,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:28,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:13:28,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:13:28,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74898670] [2024-11-08 18:13:28,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74898670] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:13:28,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:13:28,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:13:28,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613767936] [2024-11-08 18:13:28,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:13:28,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:13:28,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:13:28,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:13:28,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:13:28,854 INFO L87 Difference]: Start difference. First operand 505 states and 649 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 18:13:29,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:13:29,185 INFO L93 Difference]: Finished difference Result 1016 states and 1325 transitions. [2024-11-08 18:13:29,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:13:29,189 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2024-11-08 18:13:29,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:13:29,204 INFO L225 Difference]: With dead ends: 1016 [2024-11-08 18:13:29,204 INFO L226 Difference]: Without dead ends: 519 [2024-11-08 18:13:29,207 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:13:29,212 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 53 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:13:29,213 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 356 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:13:29,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2024-11-08 18:13:29,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 517. [2024-11-08 18:13:29,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 397 states have (on average 1.2770780856423174) internal successors, (507), 420 states have internal predecessors, (507), 61 states have call successors, (61), 55 states have call predecessors, (61), 58 states have return successors, (93), 59 states have call predecessors, (93), 61 states have call successors, (93) [2024-11-08 18:13:29,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 661 transitions. [2024-11-08 18:13:29,359 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 661 transitions. Word has length 44 [2024-11-08 18:13:29,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:13:29,360 INFO L471 AbstractCegarLoop]: Abstraction has 517 states and 661 transitions. [2024-11-08 18:13:29,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 18:13:29,360 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 661 transitions. [2024-11-08 18:13:29,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-08 18:13:29,365 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:13:29,365 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:13:29,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 18:13:29,366 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:13:29,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:13:29,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1534842118, now seen corresponding path program 1 times [2024-11-08 18:13:29,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:13:29,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550197462] [2024-11-08 18:13:29,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:13:29,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:13:29,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:29,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:13:29,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:29,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-08 18:13:29,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:29,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:13:29,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:13:29,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550197462] [2024-11-08 18:13:29,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550197462] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:13:29,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:13:29,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:13:29,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110639662] [2024-11-08 18:13:29,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:13:29,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:13:29,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:13:29,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:13:29,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:13:29,550 INFO L87 Difference]: Start difference. First operand 517 states and 661 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 18:13:29,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:13:29,775 INFO L93 Difference]: Finished difference Result 947 states and 1226 transitions. [2024-11-08 18:13:29,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:13:29,776 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2024-11-08 18:13:29,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:13:29,780 INFO L225 Difference]: With dead ends: 947 [2024-11-08 18:13:29,780 INFO L226 Difference]: Without dead ends: 438 [2024-11-08 18:13:29,783 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:13:29,784 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 51 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:13:29,785 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 270 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:13:29,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2024-11-08 18:13:29,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 436. [2024-11-08 18:13:29,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 334 states have (on average 1.2544910179640718) internal successors, (419), 354 states have internal predecessors, (419), 52 states have call successors, (52), 46 states have call predecessors, (52), 49 states have return successors, (69), 50 states have call predecessors, (69), 52 states have call successors, (69) [2024-11-08 18:13:29,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 540 transitions. [2024-11-08 18:13:29,847 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 540 transitions. Word has length 44 [2024-11-08 18:13:29,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:13:29,847 INFO L471 AbstractCegarLoop]: Abstraction has 436 states and 540 transitions. [2024-11-08 18:13:29,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 18:13:29,847 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 540 transitions. [2024-11-08 18:13:29,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-08 18:13:29,850 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:13:29,850 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:13:29,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 18:13:29,851 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:13:29,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:13:29,851 INFO L85 PathProgramCache]: Analyzing trace with hash -34243690, now seen corresponding path program 1 times [2024-11-08 18:13:29,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:13:29,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843337892] [2024-11-08 18:13:29,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:13:29,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:13:29,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:29,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:13:29,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:29,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 18:13:29,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:29,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:13:29,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:29,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:13:29,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:13:29,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843337892] [2024-11-08 18:13:29,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843337892] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:13:29,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:13:29,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:13:29,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606428249] [2024-11-08 18:13:29,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:13:29,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:13:29,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:13:29,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:13:29,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:13:29,995 INFO L87 Difference]: Start difference. First operand 436 states and 540 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:13:30,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:13:30,579 INFO L93 Difference]: Finished difference Result 888 states and 1161 transitions. [2024-11-08 18:13:30,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:13:30,580 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 48 [2024-11-08 18:13:30,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:13:30,587 INFO L225 Difference]: With dead ends: 888 [2024-11-08 18:13:30,587 INFO L226 Difference]: Without dead ends: 886 [2024-11-08 18:13:30,588 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:13:30,589 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 311 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:13:30,589 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [315 Valid, 209 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:13:30,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2024-11-08 18:13:30,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 669. [2024-11-08 18:13:30,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 669 states, 511 states have (on average 1.2661448140900196) internal successors, (647), 554 states have internal predecessors, (647), 83 states have call successors, (83), 65 states have call predecessors, (83), 74 states have return successors, (141), 69 states have call predecessors, (141), 83 states have call successors, (141) [2024-11-08 18:13:30,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 871 transitions. [2024-11-08 18:13:30,681 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 871 transitions. Word has length 48 [2024-11-08 18:13:30,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:13:30,682 INFO L471 AbstractCegarLoop]: Abstraction has 669 states and 871 transitions. [2024-11-08 18:13:30,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:13:30,682 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 871 transitions. [2024-11-08 18:13:30,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-08 18:13:30,687 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:13:30,687 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 18:13:30,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 18:13:30,688 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:13:30,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:13:30,688 INFO L85 PathProgramCache]: Analyzing trace with hash -500049215, now seen corresponding path program 1 times [2024-11-08 18:13:30,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:13:30,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661808284] [2024-11-08 18:13:30,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:13:30,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:13:30,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:30,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:13:30,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:30,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:13:30,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:30,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 18:13:30,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:30,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 18:13:30,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:30,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 18:13:30,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:30,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 18:13:30,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:30,908 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 20 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 18:13:30,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:13:30,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661808284] [2024-11-08 18:13:30,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661808284] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:13:30,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [281055707] [2024-11-08 18:13:30,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:13:30,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:30,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:13:30,913 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:13:30,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 18:13:31,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:31,057 INFO L255 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 18:13:31,064 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:13:31,170 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:13:31,170 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:13:31,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [281055707] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:13:31,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:13:31,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 9 [2024-11-08 18:13:31,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87176232] [2024-11-08 18:13:31,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:13:31,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:13:31,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:13:31,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:13:31,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:13:31,176 INFO L87 Difference]: Start difference. First operand 669 states and 871 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-08 18:13:31,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:13:31,283 INFO L93 Difference]: Finished difference Result 1168 states and 1547 transitions. [2024-11-08 18:13:31,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:13:31,283 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 86 [2024-11-08 18:13:31,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:13:31,290 INFO L225 Difference]: With dead ends: 1168 [2024-11-08 18:13:31,290 INFO L226 Difference]: Without dead ends: 632 [2024-11-08 18:13:31,293 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:13:31,294 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 42 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:13:31,295 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 205 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:13:31,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2024-11-08 18:13:31,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 596. [2024-11-08 18:13:31,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 452 states have (on average 1.2278761061946903) internal successors, (555), 485 states have internal predecessors, (555), 72 states have call successors, (72), 63 states have call predecessors, (72), 71 states have return successors, (97), 66 states have call predecessors, (97), 72 states have call successors, (97) [2024-11-08 18:13:31,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 724 transitions. [2024-11-08 18:13:31,389 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 724 transitions. Word has length 86 [2024-11-08 18:13:31,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:13:31,392 INFO L471 AbstractCegarLoop]: Abstraction has 596 states and 724 transitions. [2024-11-08 18:13:31,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-08 18:13:31,392 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 724 transitions. [2024-11-08 18:13:31,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-08 18:13:31,395 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:13:31,396 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 18:13:31,420 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 18:13:31,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-08 18:13:31,598 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:13:31,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:13:31,598 INFO L85 PathProgramCache]: Analyzing trace with hash 902356783, now seen corresponding path program 1 times [2024-11-08 18:13:31,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:13:31,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403941559] [2024-11-08 18:13:31,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:13:31,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:13:31,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:31,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:13:31,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:31,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:13:31,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:31,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 18:13:31,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:31,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 18:13:31,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:31,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 18:13:31,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:31,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 18:13:31,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:31,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-08 18:13:31,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:31,905 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 18:13:31,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:13:31,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403941559] [2024-11-08 18:13:31,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403941559] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:13:31,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1530076647] [2024-11-08 18:13:31,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:13:31,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:31,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:13:31,908 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:13:31,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 18:13:32,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:32,072 INFO L255 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 18:13:32,078 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:13:32,367 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-08 18:13:32,367 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:13:32,612 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-08 18:13:32,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1530076647] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:13:32,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:13:32,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10, 5] total 14 [2024-11-08 18:13:32,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860945513] [2024-11-08 18:13:32,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:13:32,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:13:32,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:13:32,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:13:32,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-11-08 18:13:32,615 INFO L87 Difference]: Start difference. First operand 596 states and 724 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-08 18:13:32,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:13:32,947 INFO L93 Difference]: Finished difference Result 1697 states and 2106 transitions. [2024-11-08 18:13:32,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:13:32,948 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 89 [2024-11-08 18:13:32,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:13:32,955 INFO L225 Difference]: With dead ends: 1697 [2024-11-08 18:13:32,955 INFO L226 Difference]: Without dead ends: 1109 [2024-11-08 18:13:32,958 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 183 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2024-11-08 18:13:32,959 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 57 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:13:32,960 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 443 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:13:32,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2024-11-08 18:13:33,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 1032. [2024-11-08 18:13:33,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1032 states, 775 states have (on average 1.2025806451612904) internal successors, (932), 832 states have internal predecessors, (932), 128 states have call successors, (128), 113 states have call predecessors, (128), 128 states have return successors, (176), 119 states have call predecessors, (176), 128 states have call successors, (176) [2024-11-08 18:13:33,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1032 states to 1032 states and 1236 transitions. [2024-11-08 18:13:33,075 INFO L78 Accepts]: Start accepts. Automaton has 1032 states and 1236 transitions. Word has length 89 [2024-11-08 18:13:33,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:13:33,075 INFO L471 AbstractCegarLoop]: Abstraction has 1032 states and 1236 transitions. [2024-11-08 18:13:33,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-08 18:13:33,076 INFO L276 IsEmpty]: Start isEmpty. Operand 1032 states and 1236 transitions. [2024-11-08 18:13:33,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-08 18:13:33,080 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:13:33,080 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 18:13:33,103 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 18:13:33,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:33,282 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:13:33,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:13:33,283 INFO L85 PathProgramCache]: Analyzing trace with hash -474737453, now seen corresponding path program 1 times [2024-11-08 18:13:33,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:13:33,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410670441] [2024-11-08 18:13:33,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:13:33,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:13:33,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:33,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:13:33,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:33,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:13:33,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:33,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 18:13:33,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:33,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 18:13:33,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:33,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 18:13:33,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:33,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 18:13:33,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:33,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 18:13:33,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:33,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 18:13:33,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:33,546 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 18:13:33,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:13:33,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410670441] [2024-11-08 18:13:33,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410670441] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:13:33,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [671774222] [2024-11-08 18:13:33,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:13:33,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:33,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:13:33,549 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:13:33,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 18:13:33,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:33,666 INFO L255 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 18:13:33,673 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:13:33,802 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:13:33,802 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:13:33,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [671774222] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:13:33,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:13:33,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 11 [2024-11-08 18:13:33,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322805612] [2024-11-08 18:13:33,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:13:33,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:13:33,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:13:33,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:13:33,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:13:33,807 INFO L87 Difference]: Start difference. First operand 1032 states and 1236 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-08 18:13:34,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:13:34,130 INFO L93 Difference]: Finished difference Result 2892 states and 3644 transitions. [2024-11-08 18:13:34,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:13:34,131 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 93 [2024-11-08 18:13:34,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:13:34,143 INFO L225 Difference]: With dead ends: 2892 [2024-11-08 18:13:34,143 INFO L226 Difference]: Without dead ends: 2112 [2024-11-08 18:13:34,147 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 106 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:13:34,148 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 123 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:13:34,148 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 587 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:13:34,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2112 states. [2024-11-08 18:13:34,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2112 to 2031. [2024-11-08 18:13:34,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2031 states, 1512 states have (on average 1.2043650793650793) internal successors, (1821), 1618 states have internal predecessors, (1821), 267 states have call successors, (267), 247 states have call predecessors, (267), 251 states have return successors, (422), 238 states have call predecessors, (422), 267 states have call successors, (422) [2024-11-08 18:13:34,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2031 states to 2031 states and 2510 transitions. [2024-11-08 18:13:34,417 INFO L78 Accepts]: Start accepts. Automaton has 2031 states and 2510 transitions. Word has length 93 [2024-11-08 18:13:34,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:13:34,418 INFO L471 AbstractCegarLoop]: Abstraction has 2031 states and 2510 transitions. [2024-11-08 18:13:34,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-08 18:13:34,418 INFO L276 IsEmpty]: Start isEmpty. Operand 2031 states and 2510 transitions. [2024-11-08 18:13:34,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-08 18:13:34,422 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:13:34,423 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 18:13:34,448 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 18:13:34,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:34,624 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:13:34,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:13:34,624 INFO L85 PathProgramCache]: Analyzing trace with hash -608750959, now seen corresponding path program 1 times [2024-11-08 18:13:34,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:13:34,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636820493] [2024-11-08 18:13:34,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:13:34,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:13:34,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:34,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:13:34,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:34,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:13:34,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:34,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 18:13:34,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:34,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 18:13:34,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:34,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 18:13:34,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:34,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 18:13:34,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:34,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 18:13:34,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:34,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 18:13:34,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:34,863 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-08 18:13:34,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:13:34,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636820493] [2024-11-08 18:13:34,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636820493] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:13:34,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [89753429] [2024-11-08 18:13:34,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:13:34,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:34,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:13:34,866 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:13:34,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 18:13:35,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:35,009 INFO L255 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 18:13:35,012 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:13:35,078 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 18:13:35,078 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:13:35,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [89753429] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:13:35,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:13:35,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 14 [2024-11-08 18:13:35,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731544362] [2024-11-08 18:13:35,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:13:35,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:13:35,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:13:35,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:13:35,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-08 18:13:35,081 INFO L87 Difference]: Start difference. First operand 2031 states and 2510 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-08 18:13:35,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:13:35,242 INFO L93 Difference]: Finished difference Result 2894 states and 3559 transitions. [2024-11-08 18:13:35,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:13:35,243 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 93 [2024-11-08 18:13:35,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:13:35,250 INFO L225 Difference]: With dead ends: 2894 [2024-11-08 18:13:35,250 INFO L226 Difference]: Without dead ends: 1115 [2024-11-08 18:13:35,255 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-08 18:13:35,256 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 0 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:13:35,256 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 347 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:13:35,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2024-11-08 18:13:35,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 1085. [2024-11-08 18:13:35,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1085 states, 820 states have (on average 1.1817073170731707) internal successors, (969), 872 states have internal predecessors, (969), 131 states have call successors, (131), 127 states have call predecessors, (131), 133 states have return successors, (196), 124 states have call predecessors, (196), 131 states have call successors, (196) [2024-11-08 18:13:35,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1085 states to 1085 states and 1296 transitions. [2024-11-08 18:13:35,374 INFO L78 Accepts]: Start accepts. Automaton has 1085 states and 1296 transitions. Word has length 93 [2024-11-08 18:13:35,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:13:35,375 INFO L471 AbstractCegarLoop]: Abstraction has 1085 states and 1296 transitions. [2024-11-08 18:13:35,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-08 18:13:35,375 INFO L276 IsEmpty]: Start isEmpty. Operand 1085 states and 1296 transitions. [2024-11-08 18:13:35,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-08 18:13:35,379 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:13:35,379 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:13:35,404 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 18:13:35,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-08 18:13:35,584 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:13:35,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:13:35,585 INFO L85 PathProgramCache]: Analyzing trace with hash -638263932, now seen corresponding path program 1 times [2024-11-08 18:13:35,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:13:35,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182488732] [2024-11-08 18:13:35,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:13:35,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:13:35,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:35,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:13:35,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:35,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:13:35,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:35,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 18:13:35,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:35,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 18:13:35,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:35,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 18:13:35,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:35,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-08 18:13:35,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:35,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 18:13:35,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:35,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 18:13:35,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:35,709 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-08 18:13:35,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:13:35,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182488732] [2024-11-08 18:13:35,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182488732] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:13:35,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [780308326] [2024-11-08 18:13:35,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:13:35,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:35,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:13:35,713 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:13:35,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 18:13:35,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:35,850 INFO L255 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 18:13:35,853 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:13:35,868 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-08 18:13:35,868 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:13:35,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [780308326] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:13:35,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:13:35,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 7 [2024-11-08 18:13:35,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049909832] [2024-11-08 18:13:35,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:13:35,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:13:35,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:13:35,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:13:35,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:13:35,871 INFO L87 Difference]: Start difference. First operand 1085 states and 1296 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-08 18:13:35,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:13:35,944 INFO L93 Difference]: Finished difference Result 1317 states and 1592 transitions. [2024-11-08 18:13:35,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:13:35,945 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 98 [2024-11-08 18:13:35,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:13:35,948 INFO L225 Difference]: With dead ends: 1317 [2024-11-08 18:13:35,949 INFO L226 Difference]: Without dead ends: 0 [2024-11-08 18:13:35,952 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:13:35,953 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 38 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:13:35,954 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 197 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:13:35,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-08 18:13:35,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-08 18:13:35,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:13:35,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-08 18:13:35,957 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 98 [2024-11-08 18:13:35,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:13:35,958 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 18:13:35,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-08 18:13:35,958 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-08 18:13:35,959 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 18:13:35,962 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 18:13:35,988 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 18:13:36,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:36,167 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:13:36,170 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-08 18:13:42,191 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 18:13:42,217 WARN L162 FloydHoareUtils]: Requires clause for deactivatePump contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (<= 1 |old(~pumpRunning~0)|))) (or (and (<= 2 ~waterLevel~0) .cse0 (not (= 0 ~systemActive~0))) (and (= 1 ~systemActive~0) (<= 1 ~waterLevel~0) .cse0)))) Eliminated clause: (let ((.cse0 (<= 1 ~pumpRunning~0))) (or (and .cse0 (<= 2 ~waterLevel~0) (not (= 0 ~systemActive~0))) (and .cse0 (= 1 ~systemActive~0) (<= 1 ~waterLevel~0)))) [2024-11-08 18:13:42,248 WARN L162 FloydHoareUtils]: Requires clause for changeMethaneLevel contained old-variable. Original clause: (let ((.cse0 (= ~methAndRunningLastTime~0 0))) (and (or (not (= |old(~methaneLevelCritical~0)| 0)) (= ~methaneLevelCritical~0 0) (not .cse0)) (let ((.cse4 (<= 2 ~waterLevel~0)) (.cse2 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse5 (= 0 ~systemActive~0)) (.cse3 (= ~waterLevel~0 1))) (or (and .cse1 .cse0 .cse2 .cse3) (and .cse1 .cse0 .cse4 .cse5) (and (<= 1 ~pumpRunning~0) .cse4 .cse2) (and .cse1 .cse0 .cse4 .cse2) (and .cse1 .cse0 .cse5 .cse3))))) Eliminated clause: (let ((.cse4 (<= 2 ~waterLevel~0)) (.cse2 (= 1 ~systemActive~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse5 (= 0 ~systemActive~0)) (.cse3 (= ~waterLevel~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse4 .cse5) (and (<= 1 ~pumpRunning~0) .cse4 .cse2) (and .cse0 .cse1 .cse4 .cse2) (and .cse0 .cse1 .cse5 .cse3))) [2024-11-08 18:13:42,261 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalStateException: Variable |isMethaneLevelCritical_#res| not permitted in ensures for changeMethaneLevel: (let ((.cse0 (= ~methAndRunningLastTime~0 0))) (and (or (not (= |old(~methaneLevelCritical~0)| 0)) (not (= ~methaneLevelCritical~0 0)) (= |isMethaneLevelCritical_#res| 0) (not .cse0)) (let ((.cse4 (<= 2 ~waterLevel~0)) (.cse2 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse5 (= 0 ~systemActive~0)) (.cse3 (= ~waterLevel~0 1))) (or (and .cse1 .cse0 .cse2 .cse3) (and .cse1 .cse0 .cse4 .cse5) (and (<= 1 ~pumpRunning~0) .cse4 .cse2) (and .cse1 .cse0 .cse4 .cse2) (and .cse1 .cse0 .cse5 .cse3))))) at de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.FloydHoareUtils.checkPermissibleVariables(FloydHoareUtils.java:210) at de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.FloydHoareUtils.createProcedureContractResults(FloydHoareUtils.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:199) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-08 18:13:42,264 INFO L158 Benchmark]: Toolchain (without parser) took 18224.60ms. Allocated memory was 125.8MB in the beginning and 287.3MB in the end (delta: 161.5MB). Free memory was 61.7MB in the beginning and 148.4MB in the end (delta: -86.7MB). Peak memory consumption was 144.2MB. Max. memory is 16.1GB. [2024-11-08 18:13:42,267 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 125.8MB. Free memory is still 98.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:13:42,268 INFO L158 Benchmark]: CACSL2BoogieTranslator took 896.27ms. Allocated memory was 125.8MB in the beginning and 165.7MB in the end (delta: 39.8MB). Free memory was 61.5MB in the beginning and 117.0MB in the end (delta: -55.5MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. [2024-11-08 18:13:42,268 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.29ms. Allocated memory is still 165.7MB. Free memory was 117.0MB in the beginning and 114.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:13:42,269 INFO L158 Benchmark]: Boogie Preprocessor took 74.92ms. Allocated memory is still 165.7MB. Free memory was 114.9MB in the beginning and 112.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:13:42,269 INFO L158 Benchmark]: RCFGBuilder took 661.86ms. Allocated memory is still 165.7MB. Free memory was 112.8MB in the beginning and 121.5MB in the end (delta: -8.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-08 18:13:42,269 INFO L158 Benchmark]: TraceAbstraction took 16522.66ms. Allocated memory was 165.7MB in the beginning and 287.3MB in the end (delta: 121.6MB). Free memory was 120.5MB in the beginning and 148.4MB in the end (delta: -27.9MB). Peak memory consumption was 164.1MB. Max. memory is 16.1GB. [2024-11-08 18:13:42,271 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 125.8MB. Free memory is still 98.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 896.27ms. Allocated memory was 125.8MB in the beginning and 165.7MB in the end (delta: 39.8MB). Free memory was 61.5MB in the beginning and 117.0MB in the end (delta: -55.5MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.29ms. Allocated memory is still 165.7MB. Free memory was 117.0MB in the beginning and 114.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.92ms. Allocated memory is still 165.7MB. Free memory was 114.9MB in the beginning and 112.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 661.86ms. Allocated memory is still 165.7MB. Free memory was 112.8MB in the beginning and 121.5MB in the end (delta: -8.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 16522.66ms. Allocated memory was 165.7MB in the beginning and 287.3MB in the end (delta: 121.6MB). Free memory was 120.5MB in the beginning and 148.4MB in the end (delta: -27.9MB). Peak memory consumption was 164.1MB. 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,"scenario.i","") [49] - GenericResultAtLocation [Line: 121]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [121] - GenericResultAtLocation [Line: 343]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [343] - GenericResultAtLocation [Line: 383]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [383] - GenericResultAtLocation [Line: 421]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [421] - GenericResultAtLocation [Line: 525]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [525] - GenericResultAtLocation [Line: 622]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [622] - GenericResultAtLocation [Line: 631]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [631] * 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: 627]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 95 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10.3s, OverallIterations: 13, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1133 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1113 mSDsluCounter, 4013 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2686 mSDsCounter, 219 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 718 IncrementalHoareTripleChecker+Invalid, 937 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 219 mSolverCounterUnsat, 1327 mSDtfsCounter, 718 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 738 GetRequests, 648 SyntacticMatches, 3 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2031occurred in iteration=11, InterpolantAutomatonStates: 67, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 13 MinimizatonAttempts, 462 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 1213 NumberOfCodeBlocks, 1213 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1283 ConstructedInterpolants, 0 QuantifiedInterpolants, 2219 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1564 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 19 InterpolantComputations, 13 PerfectInterpolantSequences, 316/329 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: ((((((1 <= pumpRunning) && (2 <= waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0)) || (((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 == systemActive)) && (splverifierCounter == 0)) && (1 <= waterLevel))) || (((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (splverifierCounter == 0)) && (1 <= waterLevel)) && (0 == systemActive))) - InvariantResult [Line: 537]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 64]: Location Invariant Derived location invariant: 0 - ProcedureContractResult [Line: 226]: Procedure Contract for deactivatePump Derived contract for procedure deactivatePump. Requires: ((((1 <= pumpRunning) && (2 <= waterLevel)) && (0 != systemActive)) || (((1 <= pumpRunning) && (1 == systemActive)) && (1 <= waterLevel))) Ensures: (((pumpRunning == 0) && ((((2 <= waterLevel) && (1 <= \old(pumpRunning))) && (0 != systemActive)) || (((1 == systemActive) && (1 <= waterLevel)) && (1 <= \old(pumpRunning))))) && ((((((systemActive == \old(systemActive)) && (methAndRunningLastTime == \old(methAndRunningLastTime))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 159]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: (((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 == systemActive)) && (waterLevel == 1)) || ((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (2 <= waterLevel)) && (1 == systemActive))) Ensures: ((((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 == systemActive)) && (waterLevel == 1)) || ((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (2 <= waterLevel)) && (1 == systemActive))) && (((((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (methAndRunningLastTime == \old(methAndRunningLastTime))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ExceptionOrErrorResult: IllegalStateException: Variable |isMethaneLevelCritical_#res| not permitted in ensures for changeMethaneLevel: (let ((.cse0 (= ~methAndRunningLastTime~0 0))) (and (or (not (= |old(~methaneLevelCritical~0)| 0)) (not (= ~methaneLevelCritical~0 0)) (= |isMethaneLevelCritical_#res| 0) (not .cse0)) (let ((.cse4 (<= 2 ~waterLevel~0)) (.cse2 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse5 (= 0 ~systemActive~0)) (.cse3 (= ~waterLevel~0 1))) (or (and .cse1 .cse0 .cse2 .cse3) (and .cse1 .cse0 .cse4 .cse5) (and (<= 1 ~pumpRunning~0) .cse4 .cse2) (and .cse1 .cse0 .cse4 .cse2) (and .cse1 .cse0 .cse5 .cse3))))) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalStateException: Variable |isMethaneLevelCritical_#res| not permitted in ensures for changeMethaneLevel: (let ((.cse0 (= ~methAndRunningLastTime~0 0))) (and (or (not (= |old(~methaneLevelCritical~0)| 0)) (not (= ~methaneLevelCritical~0 0)) (= |isMethaneLevelCritical_#res| 0) (not .cse0)) (let ((.cse4 (<= 2 ~waterLevel~0)) (.cse2 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse5 (= 0 ~systemActive~0)) (.cse3 (= ~waterLevel~0 1))) (or (and .cse1 .cse0 .cse2 .cse3) (and .cse1 .cse0 .cse4 .cse5) (and (<= 1 ~pumpRunning~0) .cse4 .cse2) (and .cse1 .cse0 .cse4 .cse2) (and .cse1 .cse0 .cse5 .cse3))))): de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.FloydHoareUtils.checkPermissibleVariables(FloydHoareUtils.java:210) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-11-08 18:13:42,321 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX --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 242c9b24ea8c293cca4af0028144a97f9048375edcd4379fb21e62564563d3d5 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:13:45,224 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:13:45,297 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-08 18:13:45,302 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:13:45,303 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:13:45,330 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:13:45,331 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:13:45,331 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:13:45,331 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:13:45,332 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:13:45,334 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:13:45,335 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:13:45,336 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:13:45,336 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:13:45,337 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:13:45,337 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:13:45,338 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:13:45,338 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:13:45,338 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:13:45,339 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:13:45,339 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:13:45,343 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:13:45,343 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:13:45,343 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 18:13:45,343 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 18:13:45,344 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:13:45,344 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 18:13:45,344 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:13:45,345 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:13:45,345 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:13:45,345 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:13:45,345 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:13:45,345 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:13:45,346 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:13:45,346 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:13:45,346 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:13:45,347 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:13:45,347 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:13:45,349 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-08 18:13:45,349 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 18:13:45,349 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:13:45,350 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:13:45,350 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:13:45,351 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:13:45,351 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 242c9b24ea8c293cca4af0028144a97f9048375edcd4379fb21e62564563d3d5 [2024-11-08 18:13:45,856 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:13:45,895 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:13:45,899 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:13:45,900 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:13:45,901 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:13:45,903 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c Unable to find full path for "g++" [2024-11-08 18:13:48,427 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:13:48,832 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:13:48,833 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c [2024-11-08 18:13:48,849 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/data/3603b6f74/e70412c59ac94d0e846ea9236d57d359/FLAG5964c39f8 [2024-11-08 18:13:48,867 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/data/3603b6f74/e70412c59ac94d0e846ea9236d57d359 [2024-11-08 18:13:48,869 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:13:48,871 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:13:48,873 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:13:48,873 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:13:48,880 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:13:48,881 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:13:48" (1/1) ... [2024-11-08 18:13:48,882 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@948c047 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:13:48, skipping insertion in model container [2024-11-08 18:13:48,883 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:13:48" (1/1) ... [2024-11-08 18:13:48,940 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:13:49,408 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_129f56e7-edcc-4ccc-887c-99d23bef66d6/sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c[9329,9342] [2024-11-08 18:13:49,431 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:13:49,434 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:13:49,448 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:13:49,456 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:13:49,471 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:13:49,498 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:13:49,500 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:13:49,507 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:13:49,512 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:13:49,544 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:13:49,573 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:13:49,586 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [49] [2024-11-08 18:13:49,588 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [121] [2024-11-08 18:13:49,589 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [343] [2024-11-08 18:13:49,589 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [383] [2024-11-08 18:13:49,589 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [421] [2024-11-08 18:13:49,590 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [525] [2024-11-08 18:13:49,590 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [622] [2024-11-08 18:13:49,590 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [631] [2024-11-08 18:13:49,656 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_129f56e7-edcc-4ccc-887c-99d23bef66d6/sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c[9329,9342] [2024-11-08 18:13:49,729 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:13:49,769 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:13:49,769 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:13:49 WrapperNode [2024-11-08 18:13:49,770 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:13:49,771 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:13:49,772 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:13:49,772 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:13:49,781 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:13:49" (1/1) ... [2024-11-08 18:13:49,808 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:13:49" (1/1) ... [2024-11-08 18:13:49,863 INFO L138 Inliner]: procedures = 59, calls = 101, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 197 [2024-11-08 18:13:49,867 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:13:49,868 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:13:49,869 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:13:49,870 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:13:49,887 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:13:49" (1/1) ... [2024-11-08 18:13:49,888 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:13:49" (1/1) ... [2024-11-08 18:13:49,895 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:13:49" (1/1) ... [2024-11-08 18:13:49,929 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 18:13:49,929 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:13:49" (1/1) ... [2024-11-08 18:13:49,930 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:13:49" (1/1) ... [2024-11-08 18:13:49,942 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:13:49" (1/1) ... [2024-11-08 18:13:49,950 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:13:49" (1/1) ... [2024-11-08 18:13:49,954 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:13:49" (1/1) ... [2024-11-08 18:13:49,956 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:13:49" (1/1) ... [2024-11-08 18:13:49,963 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:13:49,967 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:13:49,967 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:13:49,968 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:13:49,969 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:13:49" (1/1) ... [2024-11-08 18:13:49,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:13:49,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:13:50,017 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:13:50,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:13:50,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:13:50,073 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-08 18:13:50,074 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-08 18:13:50,074 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2024-11-08 18:13:50,075 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2024-11-08 18:13:50,076 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-08 18:13:50,077 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-08 18:13:50,077 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-08 18:13:50,077 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-08 18:13:50,078 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-11-08 18:13:50,078 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-11-08 18:13:50,080 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-08 18:13:50,081 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-08 18:13:50,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 18:13:50,081 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-11-08 18:13:50,081 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-11-08 18:13:50,082 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-08 18:13:50,082 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-08 18:13:50,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:13:50,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:13:50,225 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:13:50,228 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:13:50,695 INFO L? ?]: Removed 45 outVars from TransFormulas that were not future-live. [2024-11-08 18:13:50,695 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:13:50,723 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:13:50,723 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-08 18:13:50,724 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:13:50 BoogieIcfgContainer [2024-11-08 18:13:50,724 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:13:50,727 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:13:50,728 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:13:50,732 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:13:50,732 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:13:48" (1/3) ... [2024-11-08 18:13:50,733 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d0a7128 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:13:50, skipping insertion in model container [2024-11-08 18:13:50,733 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:13:49" (2/3) ... [2024-11-08 18:13:50,734 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d0a7128 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:13:50, skipping insertion in model container [2024-11-08 18:13:50,734 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:13:50" (3/3) ... [2024-11-08 18:13:50,736 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product51.cil.c [2024-11-08 18:13:50,761 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:13:50,761 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 18:13:50,864 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:13:50,874 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@298ee972, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:13:50,874 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 18:13:50,880 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 72 states have (on average 1.3888888888888888) internal successors, (100), 81 states have internal predecessors, (100), 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) [2024-11-08 18:13:50,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-08 18:13:50,898 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:13:50,898 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:13:50,899 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:13:50,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:13:50,910 INFO L85 PathProgramCache]: Analyzing trace with hash 550637774, now seen corresponding path program 1 times [2024-11-08 18:13:50,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:13:50,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1429348409] [2024-11-08 18:13:50,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:13:50,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:50,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:13:50,934 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:13:50,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 18:13:51,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:51,068 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-08 18:13:51,074 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:13:51,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:13:51,113 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:13:51,114 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:13:51,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1429348409] [2024-11-08 18:13:51,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1429348409] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:13:51,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:13:51,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:13:51,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437206380] [2024-11-08 18:13:51,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:13:51,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 18:13:51,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:13:51,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 18:13:51,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 18:13:51,158 INFO L87 Difference]: Start difference. First operand has 95 states, 72 states have (on average 1.3888888888888888) internal successors, (100), 81 states have internal predecessors, (100), 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) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:13:51,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:13:51,201 INFO L93 Difference]: Finished difference Result 181 states and 246 transitions. [2024-11-08 18:13:51,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 18:13:51,204 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-11-08 18:13:51,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:13:51,216 INFO L225 Difference]: With dead ends: 181 [2024-11-08 18:13:51,216 INFO L226 Difference]: Without dead ends: 86 [2024-11-08 18:13:51,221 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 18:13:51,230 INFO L432 NwaCegarLoop]: 120 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, 120 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:13:51,232 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:13:51,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-08 18:13:51,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2024-11-08 18:13:51,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 65 states have (on average 1.323076923076923) internal successors, (86), 73 states have internal predecessors, (86), 13 states have call successors, (13), 8 states have call predecessors, (13), 7 states have return successors, (12), 9 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-08 18:13:51,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 111 transitions. [2024-11-08 18:13:51,299 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 111 transitions. Word has length 25 [2024-11-08 18:13:51,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:13:51,300 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 111 transitions. [2024-11-08 18:13:51,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:13:51,301 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 111 transitions. [2024-11-08 18:13:51,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-08 18:13:51,304 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:13:51,304 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:13:51,321 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 18:13:51,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:51,506 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:13:51,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:13:51,507 INFO L85 PathProgramCache]: Analyzing trace with hash 181873087, now seen corresponding path program 1 times [2024-11-08 18:13:51,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:13:51,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [281274291] [2024-11-08 18:13:51,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:13:51,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:51,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:13:51,511 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:13:51,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 18:13:51,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:51,675 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 18:13:51,681 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:13:51,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:13:51,795 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:13:51,796 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:13:51,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [281274291] [2024-11-08 18:13:51,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [281274291] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:13:51,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:13:51,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:13:51,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947587869] [2024-11-08 18:13:51,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:13:51,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:13:51,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:13:51,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:13:51,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:13:51,804 INFO L87 Difference]: Start difference. First operand 86 states and 111 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:13:51,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:13:51,896 INFO L93 Difference]: Finished difference Result 241 states and 319 transitions. [2024-11-08 18:13:51,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:13:51,897 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2024-11-08 18:13:51,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:13:51,904 INFO L225 Difference]: With dead ends: 241 [2024-11-08 18:13:51,905 INFO L226 Difference]: Without dead ends: 163 [2024-11-08 18:13:51,906 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:13:51,907 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 94 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 228 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 [2024-11-08 18:13:51,908 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 228 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:13:51,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2024-11-08 18:13:51,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 160. [2024-11-08 18:13:51,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 119 states have (on average 1.3445378151260505) internal successors, (160), 134 states have internal predecessors, (160), 26 states have call successors, (26), 16 states have call predecessors, (26), 14 states have return successors, (24), 17 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-08 18:13:51,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 210 transitions. [2024-11-08 18:13:51,981 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 210 transitions. Word has length 26 [2024-11-08 18:13:51,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:13:51,982 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 210 transitions. [2024-11-08 18:13:51,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:13:51,983 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 210 transitions. [2024-11-08 18:13:51,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-08 18:13:51,985 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:13:51,986 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:13:52,012 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 18:13:52,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:52,187 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:13:52,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:13:52,188 INFO L85 PathProgramCache]: Analyzing trace with hash 477302053, now seen corresponding path program 1 times [2024-11-08 18:13:52,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:13:52,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [607211224] [2024-11-08 18:13:52,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:13:52,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:52,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:13:52,191 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:13:52,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 18:13:52,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:52,333 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 18:13:52,337 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:13:52,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:13:52,586 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:13:52,589 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:13:52,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [607211224] [2024-11-08 18:13:52,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [607211224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:13:52,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:13:52,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:13:52,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753448231] [2024-11-08 18:13:52,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:13:52,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:13:52,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:13:52,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:13:52,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:13:52,594 INFO L87 Difference]: Start difference. First operand 160 states and 210 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:13:52,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:13:52,891 INFO L93 Difference]: Finished difference Result 456 states and 613 transitions. [2024-11-08 18:13:52,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:13:52,892 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 36 [2024-11-08 18:13:52,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:13:52,898 INFO L225 Difference]: With dead ends: 456 [2024-11-08 18:13:52,898 INFO L226 Difference]: Without dead ends: 286 [2024-11-08 18:13:52,901 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:13:52,905 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 72 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:13:52,906 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 494 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:13:52,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2024-11-08 18:13:52,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2024-11-08 18:13:52,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 211 states have (on average 1.3412322274881516) internal successors, (283), 240 states have internal predecessors, (283), 46 states have call successors, (46), 30 states have call predecessors, (46), 28 states have return successors, (46), 30 states have call predecessors, (46), 44 states have call successors, (46) [2024-11-08 18:13:52,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 375 transitions. [2024-11-08 18:13:52,994 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 375 transitions. Word has length 36 [2024-11-08 18:13:52,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:13:52,998 INFO L471 AbstractCegarLoop]: Abstraction has 286 states and 375 transitions. [2024-11-08 18:13:52,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:13:52,998 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 375 transitions. [2024-11-08 18:13:53,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-08 18:13:53,005 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:13:53,005 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:13:53,034 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 18:13:53,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:53,207 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:13:53,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:13:53,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1165879610, now seen corresponding path program 1 times [2024-11-08 18:13:53,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:13:53,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1480947198] [2024-11-08 18:13:53,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:13:53,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:53,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:13:53,215 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:13:53,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 18:13:53,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:53,316 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 18:13:53,318 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:13:53,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:13:53,453 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:13:53,454 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:13:53,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1480947198] [2024-11-08 18:13:53,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1480947198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:13:53,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:13:53,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:13:53,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325950018] [2024-11-08 18:13:53,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:13:53,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:13:53,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:13:53,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:13:53,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:13:53,461 INFO L87 Difference]: Start difference. First operand 286 states and 375 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 18:13:53,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:13:53,657 INFO L93 Difference]: Finished difference Result 742 states and 1008 transitions. [2024-11-08 18:13:53,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:13:53,660 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 38 [2024-11-08 18:13:53,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:13:53,670 INFO L225 Difference]: With dead ends: 742 [2024-11-08 18:13:53,673 INFO L226 Difference]: Without dead ends: 464 [2024-11-08 18:13:53,676 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:13:53,679 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 53 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:13:53,680 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 423 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:13:53,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2024-11-08 18:13:53,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 462. [2024-11-08 18:13:53,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 341 states have (on average 1.2932551319648093) internal successors, (441), 370 states have internal predecessors, (441), 68 states have call successors, (68), 56 states have call predecessors, (68), 52 states have return successors, (92), 58 states have call predecessors, (92), 64 states have call successors, (92) [2024-11-08 18:13:53,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 601 transitions. [2024-11-08 18:13:53,809 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 601 transitions. Word has length 38 [2024-11-08 18:13:53,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:13:53,810 INFO L471 AbstractCegarLoop]: Abstraction has 462 states and 601 transitions. [2024-11-08 18:13:53,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 18:13:53,810 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 601 transitions. [2024-11-08 18:13:53,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-08 18:13:53,817 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:13:53,818 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:13:53,845 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-08 18:13:54,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:54,019 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:13:54,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:13:54,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1008254634, now seen corresponding path program 1 times [2024-11-08 18:13:54,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:13:54,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1149415260] [2024-11-08 18:13:54,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:13:54,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:54,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:13:54,028 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:13:54,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 18:13:54,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:54,127 INFO L255 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 18:13:54,130 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:13:54,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:13:54,155 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:13:54,155 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:13:54,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1149415260] [2024-11-08 18:13:54,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1149415260] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:13:54,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:13:54,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:13:54,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706137244] [2024-11-08 18:13:54,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:13:54,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:13:54,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:13:54,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:13:54,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:13:54,159 INFO L87 Difference]: Start difference. First operand 462 states and 601 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-08 18:13:54,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:13:54,248 INFO L93 Difference]: Finished difference Result 924 states and 1254 transitions. [2024-11-08 18:13:54,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:13:54,249 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 48 [2024-11-08 18:13:54,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:13:54,254 INFO L225 Difference]: With dead ends: 924 [2024-11-08 18:13:54,254 INFO L226 Difference]: Without dead ends: 470 [2024-11-08 18:13:54,258 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:13:54,259 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 0 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:13:54,261 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 321 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:13:54,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2024-11-08 18:13:54,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 470. [2024-11-08 18:13:54,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 349 states have (on average 1.2865329512893984) internal successors, (449), 378 states have internal predecessors, (449), 68 states have call successors, (68), 56 states have call predecessors, (68), 52 states have return successors, (92), 58 states have call predecessors, (92), 64 states have call successors, (92) [2024-11-08 18:13:54,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 609 transitions. [2024-11-08 18:13:54,345 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 609 transitions. Word has length 48 [2024-11-08 18:13:54,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:13:54,347 INFO L471 AbstractCegarLoop]: Abstraction has 470 states and 609 transitions. [2024-11-08 18:13:54,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-08 18:13:54,349 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 609 transitions. [2024-11-08 18:13:54,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-08 18:13:54,351 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:13:54,351 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:13:54,378 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 18:13:54,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:54,552 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:13:54,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:13:54,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1597768920, now seen corresponding path program 1 times [2024-11-08 18:13:54,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:13:54,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [482024839] [2024-11-08 18:13:54,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:13:54,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:54,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:13:54,556 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:13:54,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 18:13:54,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:54,650 INFO L255 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 18:13:54,653 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:13:54,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:13:54,769 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:13:54,769 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:13:54,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [482024839] [2024-11-08 18:13:54,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [482024839] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:13:54,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:13:54,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:13:54,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845882976] [2024-11-08 18:13:54,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:13:54,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:13:54,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:13:54,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:13:54,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:13:54,773 INFO L87 Difference]: Start difference. First operand 470 states and 609 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:13:54,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:13:54,895 INFO L93 Difference]: Finished difference Result 798 states and 1055 transitions. [2024-11-08 18:13:54,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:13:54,895 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 48 [2024-11-08 18:13:54,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:13:54,903 INFO L225 Difference]: With dead ends: 798 [2024-11-08 18:13:54,905 INFO L226 Difference]: Without dead ends: 796 [2024-11-08 18:13:54,906 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:13:54,907 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 67 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:13:54,907 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 211 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:13:54,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796 states. [2024-11-08 18:13:55,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 646. [2024-11-08 18:13:55,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646 states, 478 states have (on average 1.292887029288703) internal successors, (618), 521 states have internal predecessors, (618), 95 states have call successors, (95), 77 states have call predecessors, (95), 72 states have return successors, (149), 77 states have call predecessors, (149), 89 states have call successors, (149) [2024-11-08 18:13:55,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 862 transitions. [2024-11-08 18:13:55,022 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 862 transitions. Word has length 48 [2024-11-08 18:13:55,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:13:55,023 INFO L471 AbstractCegarLoop]: Abstraction has 646 states and 862 transitions. [2024-11-08 18:13:55,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:13:55,023 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 862 transitions. [2024-11-08 18:13:55,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-08 18:13:55,028 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:13:55,029 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 18:13:55,054 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-08 18:13:55,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:55,230 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:13:55,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:13:55,230 INFO L85 PathProgramCache]: Analyzing trace with hash 289230987, now seen corresponding path program 1 times [2024-11-08 18:13:55,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:13:55,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1280864671] [2024-11-08 18:13:55,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:13:55,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:55,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:13:55,234 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:13:55,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 18:13:55,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:55,338 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 18:13:55,341 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:13:55,367 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-08 18:13:55,368 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:13:55,369 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:13:55,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1280864671] [2024-11-08 18:13:55,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1280864671] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:13:55,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:13:55,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:13:55,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915316194] [2024-11-08 18:13:55,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:13:55,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:13:55,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:13:55,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:13:55,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:13:55,373 INFO L87 Difference]: Start difference. First operand 646 states and 862 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 18:13:55,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:13:55,451 INFO L93 Difference]: Finished difference Result 734 states and 983 transitions. [2024-11-08 18:13:55,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:13:55,452 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 74 [2024-11-08 18:13:55,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:13:55,455 INFO L225 Difference]: With dead ends: 734 [2024-11-08 18:13:55,457 INFO L226 Difference]: Without dead ends: 317 [2024-11-08 18:13:55,458 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:13:55,463 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 50 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:13:55,464 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 250 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:13:55,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2024-11-08 18:13:55,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 313. [2024-11-08 18:13:55,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 234 states have (on average 1.2521367521367521) internal successors, (293), 252 states have internal predecessors, (293), 43 states have call successors, (43), 37 states have call predecessors, (43), 35 states have return successors, (69), 37 states have call predecessors, (69), 40 states have call successors, (69) [2024-11-08 18:13:55,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 405 transitions. [2024-11-08 18:13:55,509 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 405 transitions. Word has length 74 [2024-11-08 18:13:55,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:13:55,509 INFO L471 AbstractCegarLoop]: Abstraction has 313 states and 405 transitions. [2024-11-08 18:13:55,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 18:13:55,509 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 405 transitions. [2024-11-08 18:13:55,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-08 18:13:55,519 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:13:55,520 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:13:55,546 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-08 18:13:55,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:55,724 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:13:55,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:13:55,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1236045202, now seen corresponding path program 1 times [2024-11-08 18:13:55,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:13:55,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [941682133] [2024-11-08 18:13:55,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:13:55,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:55,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:13:55,733 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:13:55,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-08 18:13:55,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:55,849 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 18:13:55,852 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:13:55,913 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:13:55,916 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:13:55,916 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:13:55,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [941682133] [2024-11-08 18:13:55,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [941682133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:13:55,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:13:55,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:13:55,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067197303] [2024-11-08 18:13:55,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:13:55,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:13:55,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:13:55,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:13:55,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:13:55,919 INFO L87 Difference]: Start difference. First operand 313 states and 405 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-08 18:13:55,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:13:55,969 INFO L93 Difference]: Finished difference Result 435 states and 551 transitions. [2024-11-08 18:13:55,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:13:55,971 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 82 [2024-11-08 18:13:55,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:13:55,975 INFO L225 Difference]: With dead ends: 435 [2024-11-08 18:13:55,976 INFO L226 Difference]: Without dead ends: 286 [2024-11-08 18:13:55,977 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:13:55,980 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 4 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:13:55,981 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 165 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:13:55,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2024-11-08 18:13:56,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2024-11-08 18:13:56,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 216 states have (on average 1.2592592592592593) internal successors, (272), 234 states have internal predecessors, (272), 34 states have call successors, (34), 34 states have call predecessors, (34), 35 states have return successors, (51), 31 states have call predecessors, (51), 34 states have call successors, (51) [2024-11-08 18:13:56,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 357 transitions. [2024-11-08 18:13:56,029 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 357 transitions. Word has length 82 [2024-11-08 18:13:56,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:13:56,030 INFO L471 AbstractCegarLoop]: Abstraction has 286 states and 357 transitions. [2024-11-08 18:13:56,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-08 18:13:56,031 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 357 transitions. [2024-11-08 18:13:56,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-08 18:13:56,033 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:13:56,033 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 18:13:56,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-08 18:13:56,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:56,238 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:13:56,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:13:56,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1971937923, now seen corresponding path program 1 times [2024-11-08 18:13:56,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:13:56,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1276726197] [2024-11-08 18:13:56,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:13:56,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:56,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:13:56,241 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:13:56,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-08 18:13:56,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:56,342 INFO L255 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 18:13:56,345 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:13:56,435 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:13:56,438 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:13:56,438 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:13:56,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1276726197] [2024-11-08 18:13:56,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1276726197] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:13:56,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:13:56,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:13:56,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315517647] [2024-11-08 18:13:56,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:13:56,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:13:56,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:13:56,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:13:56,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:13:56,441 INFO L87 Difference]: Start difference. First operand 286 states and 357 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-08 18:13:56,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:13:56,523 INFO L93 Difference]: Finished difference Result 545 states and 694 transitions. [2024-11-08 18:13:56,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:13:56,523 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 86 [2024-11-08 18:13:56,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:13:56,526 INFO L225 Difference]: With dead ends: 545 [2024-11-08 18:13:56,526 INFO L226 Difference]: Without dead ends: 267 [2024-11-08 18:13:56,528 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:13:56,531 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 39 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:13:56,531 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 175 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:13:56,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2024-11-08 18:13:56,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 267. [2024-11-08 18:13:56,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 201 states have (on average 1.2189054726368158) internal successors, (245), 217 states have internal predecessors, (245), 32 states have call successors, (32), 32 states have call predecessors, (32), 33 states have return successors, (45), 30 states have call predecessors, (45), 32 states have call successors, (45) [2024-11-08 18:13:56,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 322 transitions. [2024-11-08 18:13:56,576 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 322 transitions. Word has length 86 [2024-11-08 18:13:56,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:13:56,576 INFO L471 AbstractCegarLoop]: Abstraction has 267 states and 322 transitions. [2024-11-08 18:13:56,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-08 18:13:56,577 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 322 transitions. [2024-11-08 18:13:56,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-08 18:13:56,578 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:13:56,579 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 18:13:56,607 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-08 18:13:56,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:56,779 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:13:56,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:13:56,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1933039571, now seen corresponding path program 1 times [2024-11-08 18:13:56,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:13:56,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1450330871] [2024-11-08 18:13:56,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:13:56,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:56,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:13:56,783 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:13:56,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-08 18:13:56,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:56,897 INFO L255 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 18:13:56,902 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:13:57,150 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:13:57,151 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:13:57,151 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:13:57,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1450330871] [2024-11-08 18:13:57,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1450330871] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:13:57,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:13:57,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:13:57,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994889338] [2024-11-08 18:13:57,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:13:57,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:13:57,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:13:57,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:13:57,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:13:57,155 INFO L87 Difference]: Start difference. First operand 267 states and 322 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-08 18:13:57,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:13:57,702 INFO L93 Difference]: Finished difference Result 981 states and 1261 transitions. [2024-11-08 18:13:57,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:13:57,703 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 89 [2024-11-08 18:13:57,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:13:57,708 INFO L225 Difference]: With dead ends: 981 [2024-11-08 18:13:57,708 INFO L226 Difference]: Without dead ends: 722 [2024-11-08 18:13:57,710 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:13:57,711 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 154 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:13:57,712 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 334 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:13:57,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2024-11-08 18:13:57,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 682. [2024-11-08 18:13:57,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 513 states have (on average 1.1871345029239766) internal successors, (609), 552 states have internal predecessors, (609), 82 states have call successors, (82), 72 states have call predecessors, (82), 86 states have return successors, (136), 82 states have call predecessors, (136), 82 states have call successors, (136) [2024-11-08 18:13:57,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 827 transitions. [2024-11-08 18:13:57,819 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 827 transitions. Word has length 89 [2024-11-08 18:13:57,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:13:57,821 INFO L471 AbstractCegarLoop]: Abstraction has 682 states and 827 transitions. [2024-11-08 18:13:57,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-08 18:13:57,821 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 827 transitions. [2024-11-08 18:13:57,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-08 18:13:57,825 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:13:57,825 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 18:13:57,850 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-08 18:13:58,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:58,026 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:13:58,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:13:58,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1480831537, now seen corresponding path program 1 times [2024-11-08 18:13:58,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:13:58,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1376695910] [2024-11-08 18:13:58,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:13:58,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:58,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:13:58,029 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:13:58,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-08 18:13:58,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:58,139 INFO L255 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 18:13:58,142 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:13:58,180 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-08 18:13:58,180 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:13:58,180 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:13:58,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1376695910] [2024-11-08 18:13:58,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1376695910] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:13:58,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:13:58,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:13:58,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357912575] [2024-11-08 18:13:58,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:13:58,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:13:58,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:13:58,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:13:58,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:13:58,182 INFO L87 Difference]: Start difference. First operand 682 states and 827 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-08 18:13:58,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:13:58,307 INFO L93 Difference]: Finished difference Result 1274 states and 1560 transitions. [2024-11-08 18:13:58,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:13:58,308 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 89 [2024-11-08 18:13:58,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:13:58,313 INFO L225 Difference]: With dead ends: 1274 [2024-11-08 18:13:58,313 INFO L226 Difference]: Without dead ends: 694 [2024-11-08 18:13:58,315 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:13:58,316 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 0 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:13:58,317 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 346 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:13:58,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states. [2024-11-08 18:13:58,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 694. [2024-11-08 18:13:58,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 525 states have (on average 1.1828571428571428) internal successors, (621), 564 states have internal predecessors, (621), 82 states have call successors, (82), 72 states have call predecessors, (82), 86 states have return successors, (136), 82 states have call predecessors, (136), 82 states have call successors, (136) [2024-11-08 18:13:58,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 839 transitions. [2024-11-08 18:13:58,439 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 839 transitions. Word has length 89 [2024-11-08 18:13:58,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:13:58,439 INFO L471 AbstractCegarLoop]: Abstraction has 694 states and 839 transitions. [2024-11-08 18:13:58,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-08 18:13:58,440 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 839 transitions. [2024-11-08 18:13:58,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-08 18:13:58,442 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:13:58,443 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 18:13:58,469 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-08 18:13:58,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:58,644 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:13:58,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:13:58,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1682655471, now seen corresponding path program 1 times [2024-11-08 18:13:58,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:13:58,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [453138216] [2024-11-08 18:13:58,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:13:58,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:58,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:13:58,648 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:13:58,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-08 18:13:58,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:58,750 INFO L255 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 18:13:58,753 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:13:58,774 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-08 18:13:58,775 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:13:58,775 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:13:58,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [453138216] [2024-11-08 18:13:58,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [453138216] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:13:58,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:13:58,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:13:58,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040189133] [2024-11-08 18:13:58,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:13:58,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:13:58,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:13:58,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:13:58,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:13:58,778 INFO L87 Difference]: Start difference. First operand 694 states and 839 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-08 18:13:58,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:13:58,904 INFO L93 Difference]: Finished difference Result 1308 states and 1602 transitions. [2024-11-08 18:13:58,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:13:58,905 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 89 [2024-11-08 18:13:58,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:13:58,912 INFO L225 Difference]: With dead ends: 1308 [2024-11-08 18:13:58,912 INFO L226 Difference]: Without dead ends: 622 [2024-11-08 18:13:58,915 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:13:58,916 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 0 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:13:58,916 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 261 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:13:58,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2024-11-08 18:13:59,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 622. [2024-11-08 18:13:59,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 622 states, 468 states have (on average 1.1773504273504274) internal successors, (551), 502 states have internal predecessors, (551), 77 states have call successors, (77), 67 states have call predecessors, (77), 76 states have return successors, (121), 75 states have call predecessors, (121), 77 states have call successors, (121) [2024-11-08 18:13:59,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 749 transitions. [2024-11-08 18:13:59,041 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 749 transitions. Word has length 89 [2024-11-08 18:13:59,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:13:59,042 INFO L471 AbstractCegarLoop]: Abstraction has 622 states and 749 transitions. [2024-11-08 18:13:59,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-08 18:13:59,042 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 749 transitions. [2024-11-08 18:13:59,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-08 18:13:59,045 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:13:59,045 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 18:13:59,070 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-08 18:13:59,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:59,246 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:13:59,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:13:59,247 INFO L85 PathProgramCache]: Analyzing trace with hash -474737453, now seen corresponding path program 1 times [2024-11-08 18:13:59,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:13:59,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1663588484] [2024-11-08 18:13:59,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:13:59,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:59,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:13:59,250 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:13:59,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-08 18:13:59,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:59,358 INFO L255 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-08 18:13:59,362 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:13:59,580 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 18:13:59,581 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:14:00,067 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 18:14:00,067 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:14:00,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1663588484] [2024-11-08 18:14:00,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1663588484] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:14:00,068 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:14:00,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 13 [2024-11-08 18:14:00,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551372686] [2024-11-08 18:14:00,069 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:14:00,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-08 18:14:00,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:14:00,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-08 18:14:00,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:14:00,071 INFO L87 Difference]: Start difference. First operand 622 states and 749 transitions. Second operand has 13 states, 13 states have (on average 9.0) internal successors, (117), 12 states have internal predecessors, (117), 8 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (16), 6 states have call predecessors, (16), 8 states have call successors, (16) [2024-11-08 18:14:01,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:14:01,798 INFO L93 Difference]: Finished difference Result 2452 states and 3119 transitions. [2024-11-08 18:14:01,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-08 18:14:01,799 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.0) internal successors, (117), 12 states have internal predecessors, (117), 8 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (16), 6 states have call predecessors, (16), 8 states have call successors, (16) Word has length 93 [2024-11-08 18:14:01,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:14:01,813 INFO L225 Difference]: With dead ends: 2452 [2024-11-08 18:14:01,813 INFO L226 Difference]: Without dead ends: 1932 [2024-11-08 18:14:01,818 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=158, Invalid=544, Unknown=0, NotChecked=0, Total=702 [2024-11-08 18:14:01,820 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 829 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 647 mSolverCounterSat, 302 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 842 SdHoareTripleChecker+Valid, 684 SdHoareTripleChecker+Invalid, 949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 302 IncrementalHoareTripleChecker+Valid, 647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:14:01,820 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [842 Valid, 684 Invalid, 949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [302 Valid, 647 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 18:14:01,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1932 states. [2024-11-08 18:14:02,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1932 to 1822. [2024-11-08 18:14:02,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1822 states, 1371 states have (on average 1.175054704595186) internal successors, (1611), 1456 states have internal predecessors, (1611), 222 states have call successors, (222), 206 states have call predecessors, (222), 228 states have return successors, (367), 217 states have call predecessors, (367), 222 states have call successors, (367) [2024-11-08 18:14:02,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1822 states to 1822 states and 2200 transitions. [2024-11-08 18:14:02,159 INFO L78 Accepts]: Start accepts. Automaton has 1822 states and 2200 transitions. Word has length 93 [2024-11-08 18:14:02,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:14:02,160 INFO L471 AbstractCegarLoop]: Abstraction has 1822 states and 2200 transitions. [2024-11-08 18:14:02,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.0) internal successors, (117), 12 states have internal predecessors, (117), 8 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (16), 6 states have call predecessors, (16), 8 states have call successors, (16) [2024-11-08 18:14:02,160 INFO L276 IsEmpty]: Start isEmpty. Operand 1822 states and 2200 transitions. [2024-11-08 18:14:02,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-08 18:14:02,164 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:14:02,164 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 18:14:02,189 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-08 18:14:02,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:14:02,365 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:14:02,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:14:02,365 INFO L85 PathProgramCache]: Analyzing trace with hash -608750959, now seen corresponding path program 1 times [2024-11-08 18:14:02,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:14:02,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [884376548] [2024-11-08 18:14:02,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:14:02,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:14:02,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:14:02,369 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:14:02,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-08 18:14:02,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:14:02,484 INFO L255 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 18:14:02,486 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:14:02,539 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 18:14:02,539 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:14:02,540 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:14:02,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [884376548] [2024-11-08 18:14:02,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [884376548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:14:02,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:14:02,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:14:02,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132050985] [2024-11-08 18:14:02,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:14:02,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:14:02,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:14:02,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:14:02,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:14:02,543 INFO L87 Difference]: Start difference. First operand 1822 states and 2200 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-08 18:14:02,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:14:02,643 INFO L93 Difference]: Finished difference Result 2156 states and 2580 transitions. [2024-11-08 18:14:02,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:14:02,644 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 93 [2024-11-08 18:14:02,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:14:02,646 INFO L225 Difference]: With dead ends: 2156 [2024-11-08 18:14:02,647 INFO L226 Difference]: Without dead ends: 0 [2024-11-08 18:14:02,651 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:14:02,652 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 0 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:14:02,652 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 307 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:14:02,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-08 18:14:02,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-08 18:14:02,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:14:02,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-08 18:14:02,656 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 93 [2024-11-08 18:14:02,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:14:02,657 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 18:14:02,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-08 18:14:02,657 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-08 18:14:02,657 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 18:14:02,660 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 18:14:02,685 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-08 18:14:02,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:14:02,868 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:14:02,870 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-08 18:14:09,889 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 18:14:09,914 WARN L162 FloydHoareUtils]: Requires clause for deactivatePump contained old-variable. Original clause: (and (or (not (= (_ bv1 32) |old(~pumpRunning~0)|)) (not (= ~waterLevel~0 (_ bv1 32))) (= (_ bv1 32) ~pumpRunning~0)) (= (_ bv1 32) ~systemActive~0)) Eliminated clause: (= (_ bv1 32) ~systemActive~0) [2024-11-08 18:14:09,974 WARN L162 FloydHoareUtils]: Requires clause for changeMethaneLevel contained old-variable. Original clause: (let ((.cse0 (= ~methAndRunningLastTime~0 (_ bv0 32)))) (and (or (not .cse0) (not (= (_ bv0 32) |old(~methaneLevelCritical~0)|)) (= ~methaneLevelCritical~0 (_ bv0 32))) (let ((.cse1 (= (_ bv0 32) ~pumpRunning~0)) (.cse3 (= ~waterLevel~0 (_ bv2 32))) (.cse2 (= (_ bv1 32) ~systemActive~0))) (or (and (= ~waterLevel~0 (_ bv1 32)) .cse1 .cse0 .cse2) (and .cse1 (= (_ bv0 32) ~systemActive~0) .cse0) (and .cse3 (= (_ bv1 32) ~pumpRunning~0) .cse2) (and .cse1 .cse3 .cse0 .cse2))))) Eliminated clause: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse3 (= ~waterLevel~0 (_ bv2 32))) (.cse1 (= ~methAndRunningLastTime~0 (_ bv0 32))) (.cse2 (= (_ bv1 32) ~systemActive~0))) (or (and (= ~waterLevel~0 (_ bv1 32)) .cse0 .cse1 .cse2) (and .cse0 (= (_ bv0 32) ~systemActive~0) .cse1) (and .cse3 (= (_ bv1 32) ~pumpRunning~0) .cse2) (and .cse0 .cse3 .cse1 .cse2))) [2024-11-08 18:14:10,021 WARN L162 FloydHoareUtils]: Requires clause for cleanup contained old-variable. Original clause: (let ((.cse0 (= (_ bv0 32) |old(~methAndRunningLastTime~0)|)) (.cse2 (= (_ bv0 32) ~systemActive~0)) (.cse1 (= (_ bv0 32) |old(~pumpRunning~0)|))) (and (or (not .cse0) (not .cse1) (not .cse2) (and (= (_ bv0 32) ~pumpRunning~0) (= ~methAndRunningLastTime~0 (_ bv0 32)))) (or (= ~methaneLevelCritical~0 (_ bv0 32)) (and .cse0 .cse2 .cse1)))) Eliminated clause: (exists ((|old(~methAndRunningLastTime~0)| (_ BitVec 32)) (|old(~pumpRunning~0)| (_ BitVec 32))) (let ((.cse0 (= (_ bv0 32) |old(~methAndRunningLastTime~0)|)) (.cse2 (= (_ bv0 32) ~systemActive~0)) (.cse1 (= (_ bv0 32) |old(~pumpRunning~0)|))) (and (or (not .cse0) (not .cse1) (not .cse2) (and (= (_ bv0 32) ~pumpRunning~0) (= ~methAndRunningLastTime~0 (_ bv0 32)))) (or (= ~methaneLevelCritical~0 (_ bv0 32)) (and .cse0 .cse2 .cse1))))) [2024-11-08 18:14:10,024 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-08 18:14:10,064 WARN L162 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (let ((.cse11 (= (_ bv2 32) |old(~waterLevel~0)|)) (.cse9 (= (_ bv1 32) ~systemActive~0)) (.cse12 (= (_ bv1 32) |old(~pumpRunning~0)|)) (.cse7 (= (_ bv0 32) |old(~methAndRunningLastTime~0)|)) (.cse8 (= (_ bv0 32) |old(~pumpRunning~0)|)) (.cse10 (= (_ bv0 32) ~systemActive~0))) (let ((.cse4 (= (_ bv1 32) |old(~waterLevel~0)|)) (.cse2 (not .cse10)) (.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (not .cse8)) (.cse13 (= ~waterLevel~0 (_ bv2 32))) (.cse3 (not .cse7)) (.cse15 (not .cse12)) (.cse5 (not .cse9)) (.cse6 (= ~methAndRunningLastTime~0 (_ bv0 32))) (.cse14 (not .cse11))) (and (or .cse0 .cse1 .cse2) (or .cse3 (not .cse4) .cse5 .cse1 (and (= ~waterLevel~0 (_ bv1 32)) .cse0 .cse6)) (or (and .cse7 .cse8 .cse4 .cse9) (= ~methaneLevelCritical~0 (_ bv0 32)) (and .cse10 .cse8) (and .cse7 .cse8 .cse11 .cse9) (and .cse12 .cse11 .cse9)) (or .cse3 .cse6 .cse1 .cse2) (or .cse3 (and .cse0 .cse13 .cse6) .cse5 .cse1 .cse14) (or (and .cse13 (= (_ bv1 32) ~pumpRunning~0)) .cse15 .cse5 .cse14) (or .cse3 .cse15 .cse5 .cse6 .cse14)))) Eliminated clause: (exists ((|old(~waterLevel~0)| (_ BitVec 32)) (|old(~methAndRunningLastTime~0)| (_ BitVec 32)) (|old(~pumpRunning~0)| (_ BitVec 32))) (let ((.cse11 (= (_ bv2 32) |old(~waterLevel~0)|)) (.cse9 (= (_ bv1 32) ~systemActive~0)) (.cse12 (= (_ bv1 32) |old(~pumpRunning~0)|)) (.cse7 (= (_ bv0 32) |old(~methAndRunningLastTime~0)|)) (.cse8 (= (_ bv0 32) |old(~pumpRunning~0)|)) (.cse10 (= (_ bv0 32) ~systemActive~0))) (let ((.cse4 (= (_ bv1 32) |old(~waterLevel~0)|)) (.cse2 (not .cse10)) (.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (not .cse8)) (.cse13 (= ~waterLevel~0 (_ bv2 32))) (.cse3 (not .cse7)) (.cse15 (not .cse12)) (.cse5 (not .cse9)) (.cse6 (= ~methAndRunningLastTime~0 (_ bv0 32))) (.cse14 (not .cse11))) (and (or .cse0 .cse1 .cse2) (or .cse3 (not .cse4) .cse5 .cse1 (and (= ~waterLevel~0 (_ bv1 32)) .cse0 .cse6)) (or (and .cse7 .cse8 .cse4 .cse9) (= ~methaneLevelCritical~0 (_ bv0 32)) (and .cse10 .cse8) (and .cse7 .cse8 .cse11 .cse9) (and .cse12 .cse11 .cse9)) (or .cse3 .cse6 .cse1 .cse2) (or .cse3 (and .cse0 .cse13 .cse6) .cse5 .cse1 .cse14) (or (and .cse13 (= (_ bv1 32) ~pumpRunning~0)) .cse15 .cse5 .cse14) (or .cse3 .cse15 .cse5 .cse6 .cse14))))) [2024-11-08 18:14:10,101 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-08 18:14:10,121 WARN L162 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__highWaterSensor contained old-variable. Original clause: (and (= (_ bv0 32) ~pumpRunning~0) (let ((.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse4 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse5 (= ~waterLevel~0 (_ bv1 32))) (.cse0 (= (_ bv0 32) |old(~pumpRunning~0)|)) (.cse2 (= ~methAndRunningLastTime~0 (_ bv0 32))) (.cse3 (= (_ bv1 32) ~systemActive~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse4 .cse3) (and .cse5 .cse0 .cse4 .cse3) (and .cse5 .cse0 .cse2 .cse3)))) Eliminated clause: (and (= (_ bv0 32) ~pumpRunning~0) (let ((.cse1 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse3 (= ~waterLevel~0 (_ bv2 32))) (.cse0 (= ~waterLevel~0 (_ bv1 32))) (.cse4 (= ~methAndRunningLastTime~0 (_ bv0 32))) (.cse2 (= (_ bv1 32) ~systemActive~0))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse1 .cse2) (and .cse3 .cse4 .cse2) (and .cse0 .cse4 .cse2)))) [2024-11-08 18:14:10,159 WARN L162 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (let ((.cse3 (= (_ bv1 32) ~systemActive~0))) (let ((.cse0 (= (_ bv1 32) |old(~waterLevel~0)|)) (.cse1 (not .cse3)) (.cse2 (= (_ bv2 32) |old(~waterLevel~0)|))) (and (or (= ~waterLevel~0 (_ bv1 32)) (not .cse0) .cse1) (let ((.cse4 (= (_ bv0 32) ~pumpRunning~0)) (.cse5 (= ~methAndRunningLastTime~0 (_ bv0 32)))) (or (and (= (_ bv1 32) ~pumpRunning~0) .cse2 .cse3) (and .cse4 (= (_ bv0 32) ~systemActive~0) .cse5) (and .cse4 .cse0 .cse5 .cse3) (and .cse4 .cse5 .cse2 .cse3))) (or (= ~waterLevel~0 (_ bv2 32)) .cse1 (not .cse2))))) Eliminated clause: (exists ((|old(~waterLevel~0)| (_ BitVec 32))) (let ((.cse3 (= (_ bv1 32) ~systemActive~0))) (let ((.cse0 (= (_ bv1 32) |old(~waterLevel~0)|)) (.cse1 (not .cse3)) (.cse2 (= (_ bv2 32) |old(~waterLevel~0)|))) (and (or (= ~waterLevel~0 (_ bv1 32)) (not .cse0) .cse1) (let ((.cse4 (= (_ bv0 32) ~pumpRunning~0)) (.cse5 (= ~methAndRunningLastTime~0 (_ bv0 32)))) (or (and (= (_ bv1 32) ~pumpRunning~0) .cse2 .cse3) (and .cse4 (= (_ bv0 32) ~systemActive~0) .cse5) (and .cse4 .cse0 .cse5 .cse3) (and .cse4 .cse5 .cse2 .cse3))) (or (= ~waterLevel~0 (_ bv2 32)) .cse1 (not .cse2)))))) [2024-11-08 18:14:10,168 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-08 18:14:10,172 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 06:14:10 BoogieIcfgContainer [2024-11-08 18:14:10,172 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 18:14:10,176 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 18:14:10,176 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 18:14:10,177 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 18:14:10,177 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:13:50" (3/4) ... [2024-11-08 18:14:10,180 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 18:14:10,187 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-11-08 18:14:10,187 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-08 18:14:10,188 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-08 18:14:10,188 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2024-11-08 18:14:10,188 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-08 18:14:10,188 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-08 18:14:10,188 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-11-08 18:14:10,189 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-08 18:14:10,201 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2024-11-08 18:14:10,201 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-08 18:14:10,202 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-08 18:14:10,202 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 18:14:10,203 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 18:14:10,243 WARN L216 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((0 != \old(methAndRunningLastTime)) || (0 != \old(pumpRunning))) || (0 != systemActive)) || ((0 == pumpRunning) && (methAndRunningLastTime == 0))) && ((methaneLevelCritical == 0) || (((0 == \old(methAndRunningLastTime)) && (0 == systemActive)) && (0 == \old(pumpRunning))))) [2024-11-08 18:14:10,294 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((0 != \old(methAndRunningLastTime)) || (0 != \old(pumpRunning))) || (0 != systemActive)) || ((0 == pumpRunning) && (methAndRunningLastTime == 0))) && ((methaneLevelCritical == 0) || (((0 == \old(methAndRunningLastTime)) && (0 == systemActive)) && (0 == \old(pumpRunning))))) [2024-11-08 18:14:10,374 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/witness.graphml [2024-11-08 18:14:10,375 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/witness.yml [2024-11-08 18:14:10,375 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 18:14:10,376 INFO L158 Benchmark]: Toolchain (without parser) took 21504.77ms. Allocated memory was 60.8MB in the beginning and 220.2MB in the end (delta: 159.4MB). Free memory was 35.9MB in the beginning and 106.6MB in the end (delta: -70.8MB). Peak memory consumption was 90.1MB. Max. memory is 16.1GB. [2024-11-08 18:14:10,376 INFO L158 Benchmark]: CDTParser took 1.45ms. Allocated memory is still 60.8MB. Free memory was 36.6MB in the beginning and 36.5MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:14:10,377 INFO L158 Benchmark]: CACSL2BoogieTranslator took 897.50ms. Allocated memory was 60.8MB in the beginning and 104.9MB in the end (delta: 44.0MB). Free memory was 35.6MB in the beginning and 70.1MB in the end (delta: -34.5MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. [2024-11-08 18:14:10,378 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.54ms. Allocated memory is still 104.9MB. Free memory was 70.1MB in the beginning and 68.0MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:14:10,379 INFO L158 Benchmark]: Boogie Preprocessor took 97.67ms. Allocated memory is still 104.9MB. Free memory was 68.0MB in the beginning and 65.5MB in the end (delta: 2.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-08 18:14:10,379 INFO L158 Benchmark]: RCFGBuilder took 757.40ms. Allocated memory is still 104.9MB. Free memory was 65.5MB in the beginning and 74.7MB in the end (delta: -9.2MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. [2024-11-08 18:14:10,380 INFO L158 Benchmark]: TraceAbstraction took 19448.39ms. Allocated memory was 104.9MB in the beginning and 220.2MB in the end (delta: 115.3MB). Free memory was 73.7MB in the beginning and 115.0MB in the end (delta: -41.3MB). Peak memory consumption was 127.0MB. Max. memory is 16.1GB. [2024-11-08 18:14:10,380 INFO L158 Benchmark]: Witness Printer took 198.96ms. Allocated memory is still 220.2MB. Free memory was 115.0MB in the beginning and 106.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-08 18:14:10,383 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.45ms. Allocated memory is still 60.8MB. Free memory was 36.6MB in the beginning and 36.5MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 897.50ms. Allocated memory was 60.8MB in the beginning and 104.9MB in the end (delta: 44.0MB). Free memory was 35.6MB in the beginning and 70.1MB in the end (delta: -34.5MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 96.54ms. Allocated memory is still 104.9MB. Free memory was 70.1MB in the beginning and 68.0MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 97.67ms. Allocated memory is still 104.9MB. Free memory was 68.0MB in the beginning and 65.5MB in the end (delta: 2.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 757.40ms. Allocated memory is still 104.9MB. Free memory was 65.5MB in the beginning and 74.7MB in the end (delta: -9.2MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. * TraceAbstraction took 19448.39ms. Allocated memory was 104.9MB in the beginning and 220.2MB in the end (delta: 115.3MB). Free memory was 73.7MB in the beginning and 115.0MB in the end (delta: -41.3MB). Peak memory consumption was 127.0MB. Max. memory is 16.1GB. * Witness Printer took 198.96ms. Allocated memory is still 220.2MB. Free memory was 115.0MB in the beginning and 106.6MB in the end (delta: 8.4MB). 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,"scenario.i","") [49] - GenericResultAtLocation [Line: 121]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [121] - GenericResultAtLocation [Line: 343]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [343] - GenericResultAtLocation [Line: 383]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [383] - GenericResultAtLocation [Line: 421]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [421] - GenericResultAtLocation [Line: 525]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [525] - GenericResultAtLocation [Line: 622]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [622] - GenericResultAtLocation [Line: 631]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [631] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * 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: 627]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 95 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 12.0s, OverallIterations: 14, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 3.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1385 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1362 mSDsluCounter, 4319 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2806 mSDsCounter, 361 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1024 IncrementalHoareTripleChecker+Invalid, 1385 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 361 mSolverCounterUnsat, 1513 mSDtfsCounter, 1024 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1019 GetRequests, 963 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1822occurred in iteration=13, InterpolantAutomatonStates: 75, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 14 MinimizatonAttempts, 309 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 916 NumberOfCodeBlocks, 916 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 994 ConstructedInterpolants, 0 QuantifiedInterpolants, 1842 SizeOfPredicates, 7 NumberOfNonLiveVariables, 1985 ConjunctsInSsa, 63 ConjunctsInUnsatCore, 15 InterpolantComputations, 13 PerfectInterpolantSequences, 226/239 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: ((((((0 == pumpRunning) && (0 == systemActive)) && (methAndRunningLastTime == 0)) || (((((waterLevel == 1) && (0 == pumpRunning)) && (splverifierCounter < 4)) && (methAndRunningLastTime == 0)) && (1 == systemActive))) || (((((0 == pumpRunning) && (splverifierCounter < 4)) && (waterLevel == 2)) && (methAndRunningLastTime == 0)) && (1 == systemActive))) || ((((splverifierCounter < 4) && (waterLevel == 2)) && (1 == pumpRunning)) && (1 == systemActive))) - InvariantResult [Line: 537]: Loop Invariant Derived loop invariant: (((((0 != \old(methAndRunningLastTime)) || (0 != \old(pumpRunning))) || (0 != systemActive)) || ((0 == pumpRunning) && (methAndRunningLastTime == 0))) && ((methaneLevelCritical == 0) || (((0 == \old(methAndRunningLastTime)) && (0 == systemActive)) && (0 == \old(pumpRunning))))) - InvariantResult [Line: 64]: Location Invariant Derived location invariant: ((((0 == pumpRunning) && (0 == systemActive)) && (methAndRunningLastTime == 0)) || (methaneLevelCritical == 0)) - ProcedureContractResult [Line: 226]: Procedure Contract for deactivatePump Derived contract for procedure deactivatePump. Requires: (1 == systemActive) Ensures: (((0 == pumpRunning) && (1 == systemActive)) && ((((((systemActive == \old(systemActive)) && (methAndRunningLastTime == \old(methAndRunningLastTime))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 159]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: (((((((waterLevel == 1) && (0 == pumpRunning)) && (methaneLevelCritical == 0)) && (1 == systemActive)) || ((((waterLevel == 1) && (0 == pumpRunning)) && (methAndRunningLastTime == 0)) && (1 == systemActive))) || ((((0 == pumpRunning) && (waterLevel == 2)) && (methAndRunningLastTime == 0)) && (1 == systemActive))) || ((((0 == pumpRunning) && (waterLevel == 2)) && (methaneLevelCritical == 0)) && (1 == systemActive))) Ensures: ((((((((waterLevel == 1) && (0 == pumpRunning)) && (methaneLevelCritical == 0)) && (1 == systemActive)) || ((((waterLevel == 1) && (0 == pumpRunning)) && (methAndRunningLastTime == 0)) && (1 == systemActive))) || ((((0 == pumpRunning) && (waterLevel == 2)) && (methAndRunningLastTime == 0)) && (1 == systemActive))) || ((((0 == pumpRunning) && (waterLevel == 2)) && (methaneLevelCritical == 0)) && (1 == systemActive))) && (((((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (methAndRunningLastTime == \old(methAndRunningLastTime))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 449]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Requires: (((((((waterLevel == 1) && (0 == pumpRunning)) && (methAndRunningLastTime == 0)) && (1 == systemActive)) || (((0 == pumpRunning) && (0 == systemActive)) && (methAndRunningLastTime == 0))) || (((waterLevel == 2) && (1 == pumpRunning)) && (1 == systemActive))) || ((((0 == pumpRunning) && (waterLevel == 2)) && (methAndRunningLastTime == 0)) && (1 == systemActive))) Ensures: ((((((((waterLevel == 1) && (0 == pumpRunning)) && (methAndRunningLastTime == 0)) && (1 == systemActive)) || (((0 == pumpRunning) && (0 == systemActive)) && (methAndRunningLastTime == 0))) || (((waterLevel == 2) && (1 == pumpRunning)) && (1 == systemActive))) || ((((0 == pumpRunning) && (waterLevel == 2)) && (methAndRunningLastTime == 0)) && (1 == systemActive))) && ((((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (methAndRunningLastTime == \old(methAndRunningLastTime))) && (waterLevel == \old(waterLevel))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 461]: Procedure Contract for isMethaneLevelCritical Derived contract for procedure isMethaneLevelCritical. Requires: ((((((0 == pumpRunning) && (0 == systemActive)) || (((0 == pumpRunning) && (waterLevel == 2)) && (1 == systemActive))) || (((waterLevel == 1) && (0 == pumpRunning)) && (1 == systemActive))) || ((((waterLevel == 2) && (methAndRunningLastTime == 0)) && (1 == pumpRunning)) && (1 == systemActive))) || ((((waterLevel == 2) && (1 == pumpRunning)) && (methaneLevelCritical == 0)) && (1 == systemActive))) Ensures: ((((methaneLevelCritical != 0) || (0 == \result)) && ((((((0 == pumpRunning) && (0 == systemActive)) || (((0 == pumpRunning) && (waterLevel == 2)) && (1 == systemActive))) || (((waterLevel == 1) && (0 == pumpRunning)) && (1 == systemActive))) || ((((waterLevel == 2) && (methAndRunningLastTime == 0)) && (1 == pumpRunning)) && (1 == systemActive))) || ((((waterLevel == 2) && (1 == pumpRunning)) && (methaneLevelCritical == 0)) && (1 == systemActive)))) && (((((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (methAndRunningLastTime == \old(methAndRunningLastTime))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 527]: Procedure Contract for cleanup Derived contract for procedure cleanup. Ensures: (((methaneLevelCritical == 0) || (((0 == \old(methAndRunningLastTime)) && (0 == systemActive)) && (0 == \old(pumpRunning)))) && ((((systemActive == \old(systemActive)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 135]: Procedure Contract for timeShift Derived contract for procedure timeShift. Ensures: (((((((((((0 != \old(methAndRunningLastTime)) || (1 != \old(waterLevel))) || (1 != systemActive)) || (0 != \old(pumpRunning))) || (((waterLevel == 1) && (0 == pumpRunning)) && (methAndRunningLastTime == 0))) && ((((((((0 == \old(methAndRunningLastTime)) && (0 == \old(pumpRunning))) && (1 == \old(waterLevel))) && (1 == systemActive)) || (methaneLevelCritical == 0)) || ((0 == systemActive) && (0 == \old(pumpRunning)))) || ((((0 == \old(methAndRunningLastTime)) && (0 == \old(pumpRunning))) && (2 == \old(waterLevel))) && (1 == systemActive))) || (((1 == \old(pumpRunning)) && (2 == \old(waterLevel))) && (1 == systemActive)))) && ((((1 != \old(pumpRunning)) || (1 != systemActive)) || (2 != \old(waterLevel))) || (((waterLevel == 1) && (0 == pumpRunning)) && (methAndRunningLastTime == 0)))) && (((0 != \old(pumpRunning)) || (0 != systemActive)) || ((0 == pumpRunning) && (methAndRunningLastTime == 0)))) && (((((((waterLevel == 2) && (1 == pumpRunning)) || (0 != \old(methAndRunningLastTime))) || (((0 == pumpRunning) && (waterLevel == 2)) && (methAndRunningLastTime == 0))) || (1 != systemActive)) || (0 != \old(pumpRunning))) || (2 != \old(waterLevel)))) && ((((((0 != \old(methAndRunningLastTime)) || (methaneLevelCritical != 0)) || (1 != systemActive)) || (methAndRunningLastTime == 0)) || (0 != \old(pumpRunning))) || (2 != \old(waterLevel)))) && ((((systemActive == \old(systemActive)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 167]: Procedure Contract for processEnvironment__wrappee__highWaterSensor Derived contract for procedure processEnvironment__wrappee__highWaterSensor. Requires: ((0 == pumpRunning) && ((((((waterLevel == 1) && (methaneLevelCritical == 0)) && (1 == systemActive)) || (((waterLevel == 2) && (methaneLevelCritical == 0)) && (1 == systemActive))) || (((waterLevel == 2) && (methAndRunningLastTime == 0)) && (1 == systemActive))) || (((waterLevel == 1) && (methAndRunningLastTime == 0)) && (1 == systemActive)))) Ensures: ((((((((((0 == \old(pumpRunning)) && (waterLevel == 2)) && (methAndRunningLastTime == 0)) && (1 == systemActive)) || ((((0 == \old(pumpRunning)) && (waterLevel == 2)) && (methaneLevelCritical == 0)) && (1 == systemActive))) || ((((waterLevel == 1) && (0 == \old(pumpRunning))) && (methaneLevelCritical == 0)) && (1 == systemActive))) || ((((waterLevel == 1) && (0 == \old(pumpRunning))) && (methAndRunningLastTime == 0)) && (1 == systemActive))) && ((0 == pumpRunning) || (waterLevel != 1))) && ((0 == pumpRunning) || (1 == pumpRunning))) && ((((((systemActive == \old(systemActive)) && (methAndRunningLastTime == \old(methAndRunningLastTime))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 437]: Procedure Contract for waterRise Derived contract for procedure waterRise. Ensures: ((((((((1 == pumpRunning) && (2 == \old(waterLevel))) && (1 == systemActive)) || (((0 == pumpRunning) && (0 == systemActive)) && (methAndRunningLastTime == 0))) || ((((0 == pumpRunning) && (1 == \old(waterLevel))) && (methAndRunningLastTime == 0)) && (1 == systemActive))) || ((((0 == pumpRunning) && (methAndRunningLastTime == 0)) && (2 == \old(waterLevel))) && (1 == systemActive))) && ((waterLevel == 2) || (1 != systemActive))) && ((((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (methAndRunningLastTime == \old(methAndRunningLastTime))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) RESULT: Ultimate proved your program to be correct! [2024-11-08 18:14:10,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_129f56e7-edcc-4ccc-887c-99d23bef66d6/bin/uautomizer-verify-jihMAELWvX/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