./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.01.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.01.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1bc25ea26c5b0a3f713e59ee991d97185223a272bca137eca8d49c3babbebcf9 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:36:56,422 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:36:56,515 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 02:36:56,522 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:36:56,523 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:36:56,556 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:36:56,557 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:36:56,557 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:36:56,557 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:36:56,557 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:36:56,558 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:36:56,558 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:36:56,558 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:36:56,558 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:36:56,558 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:36:56,558 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:36:56,558 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:36:56,558 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:36:56,559 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:36:56,559 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:36:56,559 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:36:56,559 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:36:56,559 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:36:56,559 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:36:56,559 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:36:56,559 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:36:56,559 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:36:56,559 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:36:56,560 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:36:56,560 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:36:56,560 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:36:56,560 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:36:56,560 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:36:56,560 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:36:56,560 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:36:56,560 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:36:56,560 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:36:56,561 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:36:56,561 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:36:56,561 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:36:56,561 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:36:56,561 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:36:56,561 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:36:56,561 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:36:56,561 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:36:56,561 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:36:56,561 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:36:56,562 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:36:56,562 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1bc25ea26c5b0a3f713e59ee991d97185223a272bca137eca8d49c3babbebcf9 [2024-11-28 02:36:56,863 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:36:56,875 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:36:56,880 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:36:56,882 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:36:56,882 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:36:56,883 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.01.cil-1.c [2024-11-28 02:36:59,954 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/data/337a0f63d/76e93bf0b54e48258a02e6e315bc0a92/FLAGbf46905a2 [2024-11-28 02:37:00,278 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:37:00,279 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.01.cil-1.c [2024-11-28 02:37:00,300 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/data/337a0f63d/76e93bf0b54e48258a02e6e315bc0a92/FLAGbf46905a2 [2024-11-28 02:37:00,322 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/data/337a0f63d/76e93bf0b54e48258a02e6e315bc0a92 [2024-11-28 02:37:00,324 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:37:00,326 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:37:00,328 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:37:00,328 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:37:00,333 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:37:00,334 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:37:00" (1/1) ... [2024-11-28 02:37:00,337 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18812972 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:37:00, skipping insertion in model container [2024-11-28 02:37:00,337 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:37:00" (1/1) ... [2024-11-28 02:37:00,379 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:37:00,567 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_adc4a788-04ea-44f9-8d97-b95cd24af39f/sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.01.cil-1.c[913,926] [2024-11-28 02:37:00,632 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_adc4a788-04ea-44f9-8d97-b95cd24af39f/sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.01.cil-1.c[5977,5990] [2024-11-28 02:37:00,665 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:37:00,675 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:37:00,686 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_adc4a788-04ea-44f9-8d97-b95cd24af39f/sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.01.cil-1.c[913,926] [2024-11-28 02:37:00,711 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_adc4a788-04ea-44f9-8d97-b95cd24af39f/sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.01.cil-1.c[5977,5990] [2024-11-28 02:37:00,741 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:37:00,763 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:37:00,764 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:37:00 WrapperNode [2024-11-28 02:37:00,764 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:37:00,765 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:37:00,766 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:37:00,766 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:37:00,775 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:37:00" (1/1) ... [2024-11-28 02:37:00,784 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:37:00" (1/1) ... [2024-11-28 02:37:00,826 INFO L138 Inliner]: procedures = 50, calls = 51, calls flagged for inlining = 25, calls inlined = 25, statements flattened = 415 [2024-11-28 02:37:00,826 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:37:00,830 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:37:00,830 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:37:00,830 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:37:00,841 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:37:00" (1/1) ... [2024-11-28 02:37:00,842 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:37:00" (1/1) ... [2024-11-28 02:37:00,845 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:37:00" (1/1) ... [2024-11-28 02:37:00,874 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 02:37:00,874 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:37:00" (1/1) ... [2024-11-28 02:37:00,874 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:37:00" (1/1) ... [2024-11-28 02:37:00,882 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:37:00" (1/1) ... [2024-11-28 02:37:00,886 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:37:00" (1/1) ... [2024-11-28 02:37:00,897 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:37:00" (1/1) ... [2024-11-28 02:37:00,902 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:37:00" (1/1) ... [2024-11-28 02:37:00,907 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:37:00" (1/1) ... [2024-11-28 02:37:00,910 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:37:00,911 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:37:00,915 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:37:00,915 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:37:00,916 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:37:00" (1/1) ... [2024-11-28 02:37:00,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:37:00,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:37:00,958 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:37:00,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:37:00,990 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:37:00,990 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-28 02:37:00,991 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-28 02:37:00,991 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2024-11-28 02:37:00,991 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2024-11-28 02:37:00,991 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-28 02:37:00,991 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-28 02:37:00,991 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-28 02:37:00,991 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-28 02:37:00,991 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-28 02:37:00,991 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-28 02:37:00,991 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-28 02:37:00,991 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-28 02:37:00,992 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-28 02:37:00,992 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-28 02:37:00,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:37:00,992 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-28 02:37:00,992 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-28 02:37:00,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:37:00,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:37:00,992 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-28 02:37:00,992 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-28 02:37:01,091 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:37:01,093 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:37:01,640 INFO L? ?]: Removed 61 outVars from TransFormulas that were not future-live. [2024-11-28 02:37:01,640 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:37:01,654 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:37:01,655 INFO L312 CfgBuilder]: Removed 16 assume(true) statements. [2024-11-28 02:37:01,655 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:37:01 BoogieIcfgContainer [2024-11-28 02:37:01,655 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:37:01,658 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:37:01,658 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:37:01,663 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:37:01,664 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:37:00" (1/3) ... [2024-11-28 02:37:01,664 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d06ddd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:37:01, skipping insertion in model container [2024-11-28 02:37:01,664 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:37:00" (2/3) ... [2024-11-28 02:37:01,665 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d06ddd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:37:01, skipping insertion in model container [2024-11-28 02:37:01,665 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:37:01" (3/3) ... [2024-11-28 02:37:01,666 INFO L128 eAbstractionObserver]: Analyzing ICFG pc_sfifo_1.cil-2+token_ring.01.cil-1.c [2024-11-28 02:37:01,684 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:37:01,687 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pc_sfifo_1.cil-2+token_ring.01.cil-1.c that has 10 procedures, 173 locations, 1 initial locations, 8 loop locations, and 2 error locations. [2024-11-28 02:37:01,769 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:37:01,784 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;@6303b4f8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:37:01,785 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-28 02:37:01,791 INFO L276 IsEmpty]: Start isEmpty. Operand has 173 states, 142 states have (on average 1.5422535211267605) internal successors, (219), 145 states have internal predecessors, (219), 21 states have call successors, (21), 9 states have call predecessors, (21), 9 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-28 02:37:01,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-28 02:37:01,800 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:37:01,801 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:37:01,802 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:37:01,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:37:01,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1302731855, now seen corresponding path program 1 times [2024-11-28 02:37:01,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:37:01,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217739910] [2024-11-28 02:37:01,815 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:37:01,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:37:01,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:37:02,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:37:02,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:37:02,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217739910] [2024-11-28 02:37:02,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217739910] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:37:02,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:37:02,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:37:02,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566967454] [2024-11-28 02:37:02,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:37:02,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:37:02,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:37:02,130 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:37:02,130 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:37:02,133 INFO L87 Difference]: Start difference. First operand has 173 states, 142 states have (on average 1.5422535211267605) internal successors, (219), 145 states have internal predecessors, (219), 21 states have call successors, (21), 9 states have call predecessors, (21), 9 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 02:37:02,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:37:02,283 INFO L93 Difference]: Finished difference Result 387 states and 592 transitions. [2024-11-28 02:37:02,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:37:02,285 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 41 [2024-11-28 02:37:02,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:37:02,295 INFO L225 Difference]: With dead ends: 387 [2024-11-28 02:37:02,296 INFO L226 Difference]: Without dead ends: 218 [2024-11-28 02:37:02,299 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:37:02,304 INFO L435 NwaCegarLoop]: 253 mSDtfsCounter, 220 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:37:02,304 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 334 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:37:02,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2024-11-28 02:37:02,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 214. [2024-11-28 02:37:02,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 177 states have (on average 1.4293785310734464) internal successors, (253), 180 states have internal predecessors, (253), 25 states have call successors, (25), 11 states have call predecessors, (25), 10 states have return successors, (27), 23 states have call predecessors, (27), 23 states have call successors, (27) [2024-11-28 02:37:02,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 305 transitions. [2024-11-28 02:37:02,360 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 305 transitions. Word has length 41 [2024-11-28 02:37:02,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:37:02,361 INFO L471 AbstractCegarLoop]: Abstraction has 214 states and 305 transitions. [2024-11-28 02:37:02,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 02:37:02,361 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 305 transitions. [2024-11-28 02:37:02,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-28 02:37:02,364 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:37:02,364 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:37:02,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 02:37:02,365 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:37:02,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:37:02,366 INFO L85 PathProgramCache]: Analyzing trace with hash -705712535, now seen corresponding path program 1 times [2024-11-28 02:37:02,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:37:02,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043342398] [2024-11-28 02:37:02,366 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:37:02,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:37:02,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:37:02,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:37:02,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:37:02,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043342398] [2024-11-28 02:37:02,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043342398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:37:02,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:37:02,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:37:02,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140975413] [2024-11-28 02:37:02,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:37:02,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:37:02,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:37:02,513 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:37:02,513 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:37:02,514 INFO L87 Difference]: Start difference. First operand 214 states and 305 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 02:37:02,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:37:02,586 INFO L93 Difference]: Finished difference Result 407 states and 578 transitions. [2024-11-28 02:37:02,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:37:02,587 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 42 [2024-11-28 02:37:02,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:37:02,590 INFO L225 Difference]: With dead ends: 407 [2024-11-28 02:37:02,590 INFO L226 Difference]: Without dead ends: 300 [2024-11-28 02:37:02,591 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:37:02,592 INFO L435 NwaCegarLoop]: 257 mSDtfsCounter, 66 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:37:02,592 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 463 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:37:02,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2024-11-28 02:37:02,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 275. [2024-11-28 02:37:02,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 232 states have (on average 1.4267241379310345) internal successors, (331), 235 states have internal predecessors, (331), 28 states have call successors, (28), 14 states have call predecessors, (28), 13 states have return successors, (31), 26 states have call predecessors, (31), 26 states have call successors, (31) [2024-11-28 02:37:02,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 390 transitions. [2024-11-28 02:37:02,629 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 390 transitions. Word has length 42 [2024-11-28 02:37:02,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:37:02,630 INFO L471 AbstractCegarLoop]: Abstraction has 275 states and 390 transitions. [2024-11-28 02:37:02,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 02:37:02,630 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 390 transitions. [2024-11-28 02:37:02,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-28 02:37:02,632 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:37:02,632 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:37:02,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:37:02,633 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:37:02,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:37:02,633 INFO L85 PathProgramCache]: Analyzing trace with hash 778055560, now seen corresponding path program 1 times [2024-11-28 02:37:02,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:37:02,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713970] [2024-11-28 02:37:02,634 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:37:02,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:37:02,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:37:02,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:37:02,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:37:02,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713970] [2024-11-28 02:37:02,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713970] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:37:02,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:37:02,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:37:02,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784733409] [2024-11-28 02:37:02,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:37:02,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:37:02,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:37:02,748 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:37:02,748 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:37:02,748 INFO L87 Difference]: Start difference. First operand 275 states and 390 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 02:37:02,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:37:02,815 INFO L93 Difference]: Finished difference Result 600 states and 850 transitions. [2024-11-28 02:37:02,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:37:02,816 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 43 [2024-11-28 02:37:02,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:37:02,824 INFO L225 Difference]: With dead ends: 600 [2024-11-28 02:37:02,824 INFO L226 Difference]: Without dead ends: 432 [2024-11-28 02:37:02,825 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:37:02,826 INFO L435 NwaCegarLoop]: 240 mSDtfsCounter, 208 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:37:02,826 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 314 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:37:02,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2024-11-28 02:37:02,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 420. [2024-11-28 02:37:02,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 359 states have (on average 1.3955431754874652) internal successors, (501), 364 states have internal predecessors, (501), 39 states have call successors, (39), 21 states have call predecessors, (39), 20 states have return successors, (47), 35 states have call predecessors, (47), 37 states have call successors, (47) [2024-11-28 02:37:02,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 587 transitions. [2024-11-28 02:37:02,892 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 587 transitions. Word has length 43 [2024-11-28 02:37:02,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:37:02,893 INFO L471 AbstractCegarLoop]: Abstraction has 420 states and 587 transitions. [2024-11-28 02:37:02,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 02:37:02,893 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 587 transitions. [2024-11-28 02:37:02,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-28 02:37:02,899 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:37:02,899 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:37:02,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:37:02,900 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:37:02,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:37:02,900 INFO L85 PathProgramCache]: Analyzing trace with hash 150745099, now seen corresponding path program 1 times [2024-11-28 02:37:02,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:37:02,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792449356] [2024-11-28 02:37:02,901 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:37:02,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:37:02,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:37:03,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:37:03,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:37:03,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792449356] [2024-11-28 02:37:03,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792449356] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:37:03,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:37:03,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:37:03,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322480344] [2024-11-28 02:37:03,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:37:03,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:37:03,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:37:03,089 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:37:03,089 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:37:03,089 INFO L87 Difference]: Start difference. First operand 420 states and 587 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:37:03,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:37:03,548 INFO L93 Difference]: Finished difference Result 606 states and 855 transitions. [2024-11-28 02:37:03,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:37:03,550 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 55 [2024-11-28 02:37:03,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:37:03,556 INFO L225 Difference]: With dead ends: 606 [2024-11-28 02:37:03,556 INFO L226 Difference]: Without dead ends: 515 [2024-11-28 02:37:03,557 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:37:03,558 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 328 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:37:03,558 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 535 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 02:37:03,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2024-11-28 02:37:03,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 508. [2024-11-28 02:37:03,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 430 states have (on average 1.4046511627906977) internal successors, (604), 436 states have internal predecessors, (604), 49 states have call successors, (49), 27 states have call predecessors, (49), 27 states have return successors, (58), 45 states have call predecessors, (58), 47 states have call successors, (58) [2024-11-28 02:37:03,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 711 transitions. [2024-11-28 02:37:03,622 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 711 transitions. Word has length 55 [2024-11-28 02:37:03,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:37:03,624 INFO L471 AbstractCegarLoop]: Abstraction has 508 states and 711 transitions. [2024-11-28 02:37:03,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:37:03,625 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 711 transitions. [2024-11-28 02:37:03,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-28 02:37:03,627 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:37:03,627 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:37:03,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 02:37:03,627 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:37:03,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:37:03,630 INFO L85 PathProgramCache]: Analyzing trace with hash -323946353, now seen corresponding path program 1 times [2024-11-28 02:37:03,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:37:03,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998225777] [2024-11-28 02:37:03,632 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:37:03,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:37:03,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:37:03,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:37:03,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:37:03,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998225777] [2024-11-28 02:37:03,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998225777] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:37:03,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:37:03,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:37:03,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061312579] [2024-11-28 02:37:03,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:37:03,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:37:03,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:37:03,839 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:37:03,839 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:37:03,840 INFO L87 Difference]: Start difference. First operand 508 states and 711 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:37:04,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:37:04,512 INFO L93 Difference]: Finished difference Result 793 states and 1116 transitions. [2024-11-28 02:37:04,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:37:04,514 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 55 [2024-11-28 02:37:04,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:37:04,519 INFO L225 Difference]: With dead ends: 793 [2024-11-28 02:37:04,520 INFO L226 Difference]: Without dead ends: 614 [2024-11-28 02:37:04,520 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:37:04,522 INFO L435 NwaCegarLoop]: 226 mSDtfsCounter, 316 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:37:04,522 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 841 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 02:37:04,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2024-11-28 02:37:04,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 591. [2024-11-28 02:37:04,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 496 states have (on average 1.405241935483871) internal successors, (697), 503 states have internal predecessors, (697), 59 states have call successors, (59), 33 states have call predecessors, (59), 34 states have return successors, (71), 56 states have call predecessors, (71), 57 states have call successors, (71) [2024-11-28 02:37:04,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 827 transitions. [2024-11-28 02:37:04,598 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 827 transitions. Word has length 55 [2024-11-28 02:37:04,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:37:04,598 INFO L471 AbstractCegarLoop]: Abstraction has 591 states and 827 transitions. [2024-11-28 02:37:04,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:37:04,599 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 827 transitions. [2024-11-28 02:37:04,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-28 02:37:04,601 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:37:04,602 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:37:04,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 02:37:04,603 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:37:04,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:37:04,604 INFO L85 PathProgramCache]: Analyzing trace with hash -75799859, now seen corresponding path program 1 times [2024-11-28 02:37:04,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:37:04,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453500650] [2024-11-28 02:37:04,604 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:37:04,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:37:04,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:37:04,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:37:04,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:37:04,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453500650] [2024-11-28 02:37:04,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453500650] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:37:04,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:37:04,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:37:04,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961369760] [2024-11-28 02:37:04,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:37:04,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:37:04,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:37:04,796 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:37:04,796 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:37:04,796 INFO L87 Difference]: Start difference. First operand 591 states and 827 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:37:05,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:37:05,421 INFO L93 Difference]: Finished difference Result 1046 states and 1466 transitions. [2024-11-28 02:37:05,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:37:05,422 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 55 [2024-11-28 02:37:05,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:37:05,426 INFO L225 Difference]: With dead ends: 1046 [2024-11-28 02:37:05,426 INFO L226 Difference]: Without dead ends: 784 [2024-11-28 02:37:05,428 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:37:05,428 INFO L435 NwaCegarLoop]: 215 mSDtfsCounter, 321 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 794 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:37:05,429 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 794 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 02:37:05,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2024-11-28 02:37:05,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 745. [2024-11-28 02:37:05,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 745 states, 616 states have (on average 1.3993506493506493) internal successors, (862), 627 states have internal predecessors, (862), 77 states have call successors, (77), 45 states have call predecessors, (77), 50 states have return successors, (101), 76 states have call predecessors, (101), 75 states have call successors, (101) [2024-11-28 02:37:05,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 1040 transitions. [2024-11-28 02:37:05,503 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 1040 transitions. Word has length 55 [2024-11-28 02:37:05,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:37:05,504 INFO L471 AbstractCegarLoop]: Abstraction has 745 states and 1040 transitions. [2024-11-28 02:37:05,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:37:05,504 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 1040 transitions. [2024-11-28 02:37:05,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-28 02:37:05,505 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:37:05,506 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:37:05,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 02:37:05,506 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:37:05,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:37:05,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1447607157, now seen corresponding path program 1 times [2024-11-28 02:37:05,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:37:05,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124115760] [2024-11-28 02:37:05,507 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:37:05,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:37:05,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:37:05,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:37:05,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:37:05,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124115760] [2024-11-28 02:37:05,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124115760] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:37:05,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:37:05,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:37:05,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89970147] [2024-11-28 02:37:05,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:37:05,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:37:05,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:37:05,573 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:37:05,573 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:37:05,574 INFO L87 Difference]: Start difference. First operand 745 states and 1040 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:37:05,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:37:05,679 INFO L93 Difference]: Finished difference Result 1175 states and 1660 transitions. [2024-11-28 02:37:05,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:37:05,679 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 55 [2024-11-28 02:37:05,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:37:05,683 INFO L225 Difference]: With dead ends: 1175 [2024-11-28 02:37:05,684 INFO L226 Difference]: Without dead ends: 760 [2024-11-28 02:37:05,685 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:37:05,686 INFO L435 NwaCegarLoop]: 228 mSDtfsCounter, 0 mSDsluCounter, 678 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 906 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:37:05,687 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 906 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:37:05,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2024-11-28 02:37:05,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 760. [2024-11-28 02:37:05,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 760 states, 631 states have (on average 1.3898573692551506) internal successors, (877), 642 states have internal predecessors, (877), 77 states have call successors, (77), 45 states have call predecessors, (77), 50 states have return successors, (101), 76 states have call predecessors, (101), 75 states have call successors, (101) [2024-11-28 02:37:05,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 760 states to 760 states and 1055 transitions. [2024-11-28 02:37:05,772 INFO L78 Accepts]: Start accepts. Automaton has 760 states and 1055 transitions. Word has length 55 [2024-11-28 02:37:05,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:37:05,772 INFO L471 AbstractCegarLoop]: Abstraction has 760 states and 1055 transitions. [2024-11-28 02:37:05,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:37:05,773 INFO L276 IsEmpty]: Start isEmpty. Operand 760 states and 1055 transitions. [2024-11-28 02:37:05,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-28 02:37:05,774 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:37:05,774 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:37:05,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 02:37:05,779 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:37:05,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:37:05,779 INFO L85 PathProgramCache]: Analyzing trace with hash -746007283, now seen corresponding path program 1 times [2024-11-28 02:37:05,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:37:05,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678217331] [2024-11-28 02:37:05,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:37:05,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:37:05,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:37:05,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:37:05,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:37:05,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678217331] [2024-11-28 02:37:05,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678217331] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:37:05,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:37:05,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:37:05,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638497952] [2024-11-28 02:37:05,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:37:05,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:37:05,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:37:05,893 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:37:05,893 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:37:05,893 INFO L87 Difference]: Start difference. First operand 760 states and 1055 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:37:06,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:37:06,461 INFO L93 Difference]: Finished difference Result 2310 states and 3280 transitions. [2024-11-28 02:37:06,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:37:06,462 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 55 [2024-11-28 02:37:06,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:37:06,476 INFO L225 Difference]: With dead ends: 2310 [2024-11-28 02:37:06,477 INFO L226 Difference]: Without dead ends: 1880 [2024-11-28 02:37:06,479 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:37:06,480 INFO L435 NwaCegarLoop]: 340 mSDtfsCounter, 693 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 695 SdHoareTripleChecker+Valid, 733 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:37:06,481 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [695 Valid, 733 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 02:37:06,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1880 states. [2024-11-28 02:37:06,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1880 to 1831. [2024-11-28 02:37:06,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1831 states, 1479 states have (on average 1.3860716700473292) internal successors, (2050), 1511 states have internal predecessors, (2050), 206 states have call successors, (206), 127 states have call predecessors, (206), 144 states have return successors, (298), 196 states have call predecessors, (298), 204 states have call successors, (298) [2024-11-28 02:37:06,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1831 states to 1831 states and 2554 transitions. [2024-11-28 02:37:06,747 INFO L78 Accepts]: Start accepts. Automaton has 1831 states and 2554 transitions. Word has length 55 [2024-11-28 02:37:06,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:37:06,748 INFO L471 AbstractCegarLoop]: Abstraction has 1831 states and 2554 transitions. [2024-11-28 02:37:06,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:37:06,751 INFO L276 IsEmpty]: Start isEmpty. Operand 1831 states and 2554 transitions. [2024-11-28 02:37:06,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-28 02:37:06,756 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:37:06,756 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 02:37:06,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 02:37:06,757 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:37:06,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:37:06,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1089815872, now seen corresponding path program 1 times [2024-11-28 02:37:06,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:37:06,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277971579] [2024-11-28 02:37:06,759 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:37:06,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:37:06,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:37:06,851 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-28 02:37:06,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:37:06,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277971579] [2024-11-28 02:37:06,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277971579] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:37:06,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:37:06,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:37:06,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214155530] [2024-11-28 02:37:06,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:37:06,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:37:06,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:37:06,852 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:37:06,852 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:37:06,852 INFO L87 Difference]: Start difference. First operand 1831 states and 2554 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 02:37:07,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:37:07,081 INFO L93 Difference]: Finished difference Result 2302 states and 3210 transitions. [2024-11-28 02:37:07,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:37:07,082 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 58 [2024-11-28 02:37:07,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:37:07,097 INFO L225 Difference]: With dead ends: 2302 [2024-11-28 02:37:07,097 INFO L226 Difference]: Without dead ends: 1989 [2024-11-28 02:37:07,099 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:37:07,101 INFO L435 NwaCegarLoop]: 285 mSDtfsCounter, 53 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:37:07,102 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 505 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:37:07,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1989 states. [2024-11-28 02:37:07,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1989 to 1989. [2024-11-28 02:37:07,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1989 states, 1615 states have (on average 1.3721362229102168) internal successors, (2216), 1647 states have internal predecessors, (2216), 220 states have call successors, (220), 135 states have call predecessors, (220), 152 states have return successors, (320), 210 states have call predecessors, (320), 218 states have call successors, (320) [2024-11-28 02:37:07,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1989 states to 1989 states and 2756 transitions. [2024-11-28 02:37:07,354 INFO L78 Accepts]: Start accepts. Automaton has 1989 states and 2756 transitions. Word has length 58 [2024-11-28 02:37:07,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:37:07,355 INFO L471 AbstractCegarLoop]: Abstraction has 1989 states and 2756 transitions. [2024-11-28 02:37:07,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 02:37:07,355 INFO L276 IsEmpty]: Start isEmpty. Operand 1989 states and 2756 transitions. [2024-11-28 02:37:07,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-28 02:37:07,360 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:37:07,360 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 02:37:07,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 02:37:07,361 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:37:07,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:37:07,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1517507631, now seen corresponding path program 1 times [2024-11-28 02:37:07,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:37:07,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007350985] [2024-11-28 02:37:07,362 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:37:07,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:37:07,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:37:07,555 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 02:37:07,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:37:07,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007350985] [2024-11-28 02:37:07,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007350985] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:37:07,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1653092485] [2024-11-28 02:37:07,556 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:37:07,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:37:07,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:37:07,561 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:37:07,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:37:07,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:37:07,688 INFO L256 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 02:37:07,693 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:37:07,798 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 02:37:07,798 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:37:07,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1653092485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:37:07,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:37:07,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-28 02:37:07,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101264265] [2024-11-28 02:37:07,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:37:07,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:37:07,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:37:07,800 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:37:07,800 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:37:07,800 INFO L87 Difference]: Start difference. First operand 1989 states and 2756 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 02:37:08,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:37:08,085 INFO L93 Difference]: Finished difference Result 2491 states and 3433 transitions. [2024-11-28 02:37:08,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:37:08,086 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 63 [2024-11-28 02:37:08,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:37:08,103 INFO L225 Difference]: With dead ends: 2491 [2024-11-28 02:37:08,103 INFO L226 Difference]: Without dead ends: 2108 [2024-11-28 02:37:08,105 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:37:08,107 INFO L435 NwaCegarLoop]: 234 mSDtfsCounter, 187 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:37:08,110 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 308 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:37:08,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2108 states. [2024-11-28 02:37:08,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2108 to 2108. [2024-11-28 02:37:08,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2108 states, 1720 states have (on average 1.3622093023255815) internal successors, (2343), 1752 states have internal predecessors, (2343), 228 states have call successors, (228), 141 states have call predecessors, (228), 158 states have return successors, (332), 218 states have call predecessors, (332), 226 states have call successors, (332) [2024-11-28 02:37:08,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2108 states to 2108 states and 2903 transitions. [2024-11-28 02:37:08,402 INFO L78 Accepts]: Start accepts. Automaton has 2108 states and 2903 transitions. Word has length 63 [2024-11-28 02:37:08,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:37:08,403 INFO L471 AbstractCegarLoop]: Abstraction has 2108 states and 2903 transitions. [2024-11-28 02:37:08,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 02:37:08,403 INFO L276 IsEmpty]: Start isEmpty. Operand 2108 states and 2903 transitions. [2024-11-28 02:37:08,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-28 02:37:08,409 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:37:08,409 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 02:37:08,421 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 02:37:08,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-28 02:37:08,614 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:37:08,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:37:08,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1117516432, now seen corresponding path program 1 times [2024-11-28 02:37:08,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:37:08,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649798731] [2024-11-28 02:37:08,615 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:37:08,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:37:08,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:37:08,743 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 02:37:08,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:37:08,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649798731] [2024-11-28 02:37:08,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649798731] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:37:08,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2066432245] [2024-11-28 02:37:08,744 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:37:08,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:37:08,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:37:08,746 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:37:08,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 02:37:08,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:37:08,869 INFO L256 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 02:37:08,872 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:37:09,025 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:37:09,026 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:37:09,100 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-28 02:37:09,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2066432245] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 02:37:09,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:37:09,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 4] total 7 [2024-11-28 02:37:09,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104146200] [2024-11-28 02:37:09,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:37:09,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:37:09,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:37:09,104 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:37:09,104 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:37:09,105 INFO L87 Difference]: Start difference. First operand 2108 states and 2903 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 02:37:09,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:37:09,460 INFO L93 Difference]: Finished difference Result 2158 states and 2965 transitions. [2024-11-28 02:37:09,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:37:09,461 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 63 [2024-11-28 02:37:09,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:37:09,480 INFO L225 Difference]: With dead ends: 2158 [2024-11-28 02:37:09,481 INFO L226 Difference]: Without dead ends: 2155 [2024-11-28 02:37:09,483 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:37:09,484 INFO L435 NwaCegarLoop]: 253 mSDtfsCounter, 391 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:37:09,485 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 316 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:37:09,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2155 states. [2024-11-28 02:37:09,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2155 to 2107. [2024-11-28 02:37:09,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2107 states, 1720 states have (on average 1.361046511627907) internal successors, (2341), 1751 states have internal predecessors, (2341), 227 states have call successors, (227), 141 states have call predecessors, (227), 158 states have return successors, (332), 218 states have call predecessors, (332), 226 states have call successors, (332) [2024-11-28 02:37:09,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2107 states to 2107 states and 2900 transitions. [2024-11-28 02:37:09,748 INFO L78 Accepts]: Start accepts. Automaton has 2107 states and 2900 transitions. Word has length 63 [2024-11-28 02:37:09,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:37:09,749 INFO L471 AbstractCegarLoop]: Abstraction has 2107 states and 2900 transitions. [2024-11-28 02:37:09,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 02:37:09,749 INFO L276 IsEmpty]: Start isEmpty. Operand 2107 states and 2900 transitions. [2024-11-28 02:37:09,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-28 02:37:09,752 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:37:09,752 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 02:37:09,762 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 02:37:09,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-28 02:37:09,956 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:37:09,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:37:09,957 INFO L85 PathProgramCache]: Analyzing trace with hash -283851309, now seen corresponding path program 1 times [2024-11-28 02:37:09,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:37:09,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479046141] [2024-11-28 02:37:09,957 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:37:09,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:37:09,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:37:10,054 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 02:37:10,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:37:10,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479046141] [2024-11-28 02:37:10,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479046141] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:37:10,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [985563641] [2024-11-28 02:37:10,055 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:37:10,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:37:10,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:37:10,057 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:37:10,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 02:37:10,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:37:10,174 INFO L256 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 02:37:10,176 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:37:10,621 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:37:10,621 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:37:10,748 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-28 02:37:10,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [985563641] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:37:10,748 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:37:10,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 4] total 10 [2024-11-28 02:37:10,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484039919] [2024-11-28 02:37:10,748 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:37:10,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 02:37:10,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:37:10,750 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 02:37:10,750 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:37:10,751 INFO L87 Difference]: Start difference. First operand 2107 states and 2900 transitions. Second operand has 10 states, 10 states have (on average 13.5) internal successors, (135), 10 states have internal predecessors, (135), 7 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-11-28 02:37:11,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:37:11,559 INFO L93 Difference]: Finished difference Result 3344 states and 4577 transitions. [2024-11-28 02:37:11,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-28 02:37:11,560 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.5) internal successors, (135), 10 states have internal predecessors, (135), 7 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) Word has length 64 [2024-11-28 02:37:11,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:37:11,580 INFO L225 Difference]: With dead ends: 3344 [2024-11-28 02:37:11,580 INFO L226 Difference]: Without dead ends: 2887 [2024-11-28 02:37:11,584 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=382, Unknown=0, NotChecked=0, Total=462 [2024-11-28 02:37:11,584 INFO L435 NwaCegarLoop]: 314 mSDtfsCounter, 405 mSDsluCounter, 1650 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 1964 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:37:11,585 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 1964 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 02:37:11,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2887 states. [2024-11-28 02:37:11,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2887 to 2442. [2024-11-28 02:37:11,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2442 states, 2019 states have (on average 1.3452204061416544) internal successors, (2716), 2055 states have internal predecessors, (2716), 247 states have call successors, (247), 155 states have call predecessors, (247), 174 states have return successors, (363), 235 states have call predecessors, (363), 246 states have call successors, (363) [2024-11-28 02:37:11,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2442 states to 2442 states and 3326 transitions. [2024-11-28 02:37:11,925 INFO L78 Accepts]: Start accepts. Automaton has 2442 states and 3326 transitions. Word has length 64 [2024-11-28 02:37:11,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:37:11,926 INFO L471 AbstractCegarLoop]: Abstraction has 2442 states and 3326 transitions. [2024-11-28 02:37:11,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.5) internal successors, (135), 10 states have internal predecessors, (135), 7 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-11-28 02:37:11,927 INFO L276 IsEmpty]: Start isEmpty. Operand 2442 states and 3326 transitions. [2024-11-28 02:37:11,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-28 02:37:11,933 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:37:11,933 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-28 02:37:11,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 02:37:12,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-28 02:37:12,134 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:37:12,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:37:12,134 INFO L85 PathProgramCache]: Analyzing trace with hash -516104676, now seen corresponding path program 1 times [2024-11-28 02:37:12,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:37:12,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858220594] [2024-11-28 02:37:12,135 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:37:12,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:37:12,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:37:12,257 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-28 02:37:12,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:37:12,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858220594] [2024-11-28 02:37:12,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858220594] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:37:12,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [605287196] [2024-11-28 02:37:12,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:37:12,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:37:12,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:37:12,261 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:37:12,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 02:37:12,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:37:12,401 INFO L256 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:37:12,404 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:37:12,456 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-28 02:37:12,457 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:37:12,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [605287196] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:37:12,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:37:12,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-28 02:37:12,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248646271] [2024-11-28 02:37:12,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:37:12,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:37:12,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:37:12,459 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:37:12,459 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:37:12,459 INFO L87 Difference]: Start difference. First operand 2442 states and 3326 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 02:37:12,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:37:12,653 INFO L93 Difference]: Finished difference Result 3042 states and 4121 transitions. [2024-11-28 02:37:12,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:37:12,653 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 82 [2024-11-28 02:37:12,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:37:12,667 INFO L225 Difference]: With dead ends: 3042 [2024-11-28 02:37:12,667 INFO L226 Difference]: Without dead ends: 2330 [2024-11-28 02:37:12,670 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:37:12,671 INFO L435 NwaCegarLoop]: 259 mSDtfsCounter, 192 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:37:12,671 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 330 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:37:12,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2330 states. [2024-11-28 02:37:12,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2330 to 2321. [2024-11-28 02:37:12,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2321 states, 1912 states have (on average 1.3451882845188285) internal successors, (2572), 1949 states have internal predecessors, (2572), 239 states have call successors, (239), 149 states have call predecessors, (239), 168 states have return successors, (351), 226 states have call predecessors, (351), 238 states have call successors, (351) [2024-11-28 02:37:12,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2321 states to 2321 states and 3162 transitions. [2024-11-28 02:37:12,910 INFO L78 Accepts]: Start accepts. Automaton has 2321 states and 3162 transitions. Word has length 82 [2024-11-28 02:37:12,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:37:12,911 INFO L471 AbstractCegarLoop]: Abstraction has 2321 states and 3162 transitions. [2024-11-28 02:37:12,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 02:37:12,911 INFO L276 IsEmpty]: Start isEmpty. Operand 2321 states and 3162 transitions. [2024-11-28 02:37:12,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-28 02:37:12,916 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:37:12,916 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:37:12,925 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 02:37:13,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-28 02:37:13,116 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:37:13,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:37:13,117 INFO L85 PathProgramCache]: Analyzing trace with hash 2138254400, now seen corresponding path program 1 times [2024-11-28 02:37:13,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:37:13,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107818003] [2024-11-28 02:37:13,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:37:13,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:37:13,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:37:13,198 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-28 02:37:13,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:37:13,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107818003] [2024-11-28 02:37:13,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107818003] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:37:13,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [885535967] [2024-11-28 02:37:13,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:37:13,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:37:13,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:37:13,201 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:37:13,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 02:37:13,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:37:13,308 INFO L256 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 02:37:13,310 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:37:13,340 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-28 02:37:13,340 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:37:13,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [885535967] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:37:13,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:37:13,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-28 02:37:13,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016054467] [2024-11-28 02:37:13,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:37:13,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:37:13,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:37:13,342 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:37:13,342 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:37:13,343 INFO L87 Difference]: Start difference. First operand 2321 states and 3162 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2024-11-28 02:37:13,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:37:13,668 INFO L93 Difference]: Finished difference Result 5193 states and 7213 transitions. [2024-11-28 02:37:13,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:37:13,668 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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 89 [2024-11-28 02:37:13,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:37:13,682 INFO L225 Difference]: With dead ends: 5193 [2024-11-28 02:37:13,682 INFO L226 Difference]: Without dead ends: 2780 [2024-11-28 02:37:13,689 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:37:13,692 INFO L435 NwaCegarLoop]: 341 mSDtfsCounter, 113 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 563 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 [2024-11-28 02:37:13,692 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 563 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:37:13,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2780 states. [2024-11-28 02:37:13,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2780 to 2780. [2024-11-28 02:37:13,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2780 states, 2284 states have (on average 1.3458844133099825) internal successors, (3074), 2325 states have internal predecessors, (3074), 289 states have call successors, (289), 182 states have call predecessors, (289), 205 states have return successors, (425), 276 states have call predecessors, (425), 288 states have call successors, (425) [2024-11-28 02:37:14,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2780 states to 2780 states and 3788 transitions. [2024-11-28 02:37:14,005 INFO L78 Accepts]: Start accepts. Automaton has 2780 states and 3788 transitions. Word has length 89 [2024-11-28 02:37:14,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:37:14,005 INFO L471 AbstractCegarLoop]: Abstraction has 2780 states and 3788 transitions. [2024-11-28 02:37:14,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2024-11-28 02:37:14,006 INFO L276 IsEmpty]: Start isEmpty. Operand 2780 states and 3788 transitions. [2024-11-28 02:37:14,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-28 02:37:14,010 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:37:14,010 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:37:14,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-28 02:37:14,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-28 02:37:14,215 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:37:14,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:37:14,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1537387869, now seen corresponding path program 1 times [2024-11-28 02:37:14,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:37:14,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572493851] [2024-11-28 02:37:14,216 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:37:14,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:37:14,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:37:14,302 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 10 proven. 10 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-28 02:37:14,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:37:14,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572493851] [2024-11-28 02:37:14,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572493851] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:37:14,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1099632068] [2024-11-28 02:37:14,303 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:37:14,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:37:14,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:37:14,305 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:37:14,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 02:37:14,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:37:14,428 INFO L256 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 02:37:14,430 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:37:14,450 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 02:37:14,450 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:37:14,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1099632068] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:37:14,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:37:14,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-28 02:37:14,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568073439] [2024-11-28 02:37:14,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:37:14,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:37:14,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:37:14,451 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:37:14,452 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:37:14,452 INFO L87 Difference]: Start difference. First operand 2780 states and 3788 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-28 02:37:14,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:37:14,655 INFO L93 Difference]: Finished difference Result 3129 states and 4229 transitions. [2024-11-28 02:37:14,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:37:14,656 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) Word has length 96 [2024-11-28 02:37:14,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:37:14,667 INFO L225 Difference]: With dead ends: 3129 [2024-11-28 02:37:14,667 INFO L226 Difference]: Without dead ends: 1971 [2024-11-28 02:37:14,671 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:37:14,673 INFO L435 NwaCegarLoop]: 272 mSDtfsCounter, 60 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:37:14,673 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 477 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:37:14,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1971 states. [2024-11-28 02:37:14,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1971 to 1971. [2024-11-28 02:37:14,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1971 states, 1571 states have (on average 1.3774665817950351) internal successors, (2164), 1603 states have internal predecessors, (2164), 232 states have call successors, (232), 145 states have call predecessors, (232), 167 states have return successors, (340), 226 states have call predecessors, (340), 232 states have call successors, (340) [2024-11-28 02:37:14,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1971 states to 1971 states and 2736 transitions. [2024-11-28 02:37:14,893 INFO L78 Accepts]: Start accepts. Automaton has 1971 states and 2736 transitions. Word has length 96 [2024-11-28 02:37:14,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:37:14,893 INFO L471 AbstractCegarLoop]: Abstraction has 1971 states and 2736 transitions. [2024-11-28 02:37:14,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-28 02:37:14,894 INFO L276 IsEmpty]: Start isEmpty. Operand 1971 states and 2736 transitions. [2024-11-28 02:37:14,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-28 02:37:14,900 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:37:14,900 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:37:14,909 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 02:37:15,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-28 02:37:15,101 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:37:15,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:37:15,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1376150619, now seen corresponding path program 1 times [2024-11-28 02:37:15,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:37:15,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320501364] [2024-11-28 02:37:15,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:37:15,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:37:15,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:37:15,186 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-28 02:37:15,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:37:15,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320501364] [2024-11-28 02:37:15,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320501364] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:37:15,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [996611083] [2024-11-28 02:37:15,187 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:37:15,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:37:15,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:37:15,189 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:37:15,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 02:37:15,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:37:15,307 INFO L256 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 02:37:15,310 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:37:15,352 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-28 02:37:15,352 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:37:15,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [996611083] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:37:15,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:37:15,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-28 02:37:15,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462324562] [2024-11-28 02:37:15,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:37:15,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:37:15,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:37:15,354 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:37:15,354 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:37:15,354 INFO L87 Difference]: Start difference. First operand 1971 states and 2736 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-28 02:37:15,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:37:15,561 INFO L93 Difference]: Finished difference Result 3992 states and 5618 transitions. [2024-11-28 02:37:15,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:37:15,561 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 130 [2024-11-28 02:37:15,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:37:15,571 INFO L225 Difference]: With dead ends: 3992 [2024-11-28 02:37:15,571 INFO L226 Difference]: Without dead ends: 2161 [2024-11-28 02:37:15,576 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:37:15,577 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 116 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:37:15,578 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 164 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:37:15,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2161 states. [2024-11-28 02:37:15,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2161 to 2157. [2024-11-28 02:37:15,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2157 states, 1746 states have (on average 1.3104238258877434) internal successors, (2288), 1771 states have internal predecessors, (2288), 231 states have call successors, (231), 161 states have call predecessors, (231), 179 states have return successors, (325), 226 states have call predecessors, (325), 231 states have call successors, (325) [2024-11-28 02:37:15,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2157 states to 2157 states and 2844 transitions. [2024-11-28 02:37:15,772 INFO L78 Accepts]: Start accepts. Automaton has 2157 states and 2844 transitions. Word has length 130 [2024-11-28 02:37:15,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:37:15,773 INFO L471 AbstractCegarLoop]: Abstraction has 2157 states and 2844 transitions. [2024-11-28 02:37:15,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-28 02:37:15,774 INFO L276 IsEmpty]: Start isEmpty. Operand 2157 states and 2844 transitions. [2024-11-28 02:37:15,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-28 02:37:15,778 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:37:15,778 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:37:15,788 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-28 02:37:15,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-28 02:37:15,979 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:37:15,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:37:15,979 INFO L85 PathProgramCache]: Analyzing trace with hash 362790056, now seen corresponding path program 1 times [2024-11-28 02:37:15,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:37:15,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870459422] [2024-11-28 02:37:15,980 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:37:15,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:37:15,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:37:16,072 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-28 02:37:16,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:37:16,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870459422] [2024-11-28 02:37:16,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870459422] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:37:16,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [314317740] [2024-11-28 02:37:16,072 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:37:16,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:37:16,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:37:16,075 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:37:16,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 02:37:16,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:37:16,203 INFO L256 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:37:16,206 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:37:16,230 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-28 02:37:16,232 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:37:16,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [314317740] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:37:16,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:37:16,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-28 02:37:16,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487329098] [2024-11-28 02:37:16,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:37:16,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:37:16,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:37:16,234 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:37:16,234 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:37:16,234 INFO L87 Difference]: Start difference. First operand 2157 states and 2844 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-28 02:37:16,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:37:16,534 INFO L93 Difference]: Finished difference Result 4377 states and 5802 transitions. [2024-11-28 02:37:16,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:37:16,535 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 130 [2024-11-28 02:37:16,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:37:16,548 INFO L225 Difference]: With dead ends: 4377 [2024-11-28 02:37:16,548 INFO L226 Difference]: Without dead ends: 2232 [2024-11-28 02:37:16,555 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:37:16,555 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 118 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:37:16,555 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 263 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:37:16,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2232 states. [2024-11-28 02:37:16,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2232 to 2148. [2024-11-28 02:37:16,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2148 states, 1737 states have (on average 1.2843983880253311) internal successors, (2231), 1762 states have internal predecessors, (2231), 231 states have call successors, (231), 161 states have call predecessors, (231), 179 states have return successors, (325), 226 states have call predecessors, (325), 231 states have call successors, (325) [2024-11-28 02:37:16,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2148 states to 2148 states and 2787 transitions. [2024-11-28 02:37:16,864 INFO L78 Accepts]: Start accepts. Automaton has 2148 states and 2787 transitions. Word has length 130 [2024-11-28 02:37:16,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:37:16,865 INFO L471 AbstractCegarLoop]: Abstraction has 2148 states and 2787 transitions. [2024-11-28 02:37:16,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-28 02:37:16,865 INFO L276 IsEmpty]: Start isEmpty. Operand 2148 states and 2787 transitions. [2024-11-28 02:37:16,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-28 02:37:16,870 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:37:16,870 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:37:16,880 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-28 02:37:17,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-28 02:37:17,071 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:37:17,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:37:17,073 INFO L85 PathProgramCache]: Analyzing trace with hash -415393997, now seen corresponding path program 1 times [2024-11-28 02:37:17,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:37:17,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921382425] [2024-11-28 02:37:17,073 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:37:17,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:37:17,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:37:17,180 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-11-28 02:37:17,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:37:17,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921382425] [2024-11-28 02:37:17,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921382425] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:37:17,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [869627767] [2024-11-28 02:37:17,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:37:17,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:37:17,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:37:17,183 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:37:17,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 02:37:17,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:37:17,298 INFO L256 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 02:37:17,300 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:37:17,333 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-28 02:37:17,334 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:37:17,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [869627767] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:37:17,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:37:17,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-28 02:37:17,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992404717] [2024-11-28 02:37:17,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:37:17,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:37:17,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:37:17,336 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:37:17,336 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:37:17,336 INFO L87 Difference]: Start difference. First operand 2148 states and 2787 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-28 02:37:17,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:37:17,690 INFO L93 Difference]: Finished difference Result 6251 states and 8207 transitions. [2024-11-28 02:37:17,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:37:17,691 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 131 [2024-11-28 02:37:17,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:37:17,712 INFO L225 Difference]: With dead ends: 6251 [2024-11-28 02:37:17,712 INFO L226 Difference]: Without dead ends: 4115 [2024-11-28 02:37:17,719 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:37:17,719 INFO L435 NwaCegarLoop]: 247 mSDtfsCounter, 103 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:37:17,719 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 378 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:37:17,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4115 states. [2024-11-28 02:37:18,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4115 to 4113. [2024-11-28 02:37:18,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4113 states, 3329 states have (on average 1.2697506758786423) internal successors, (4227), 3379 states have internal predecessors, (4227), 439 states have call successors, (439), 311 states have call predecessors, (439), 344 states have return successors, (723), 426 states have call predecessors, (723), 439 states have call successors, (723) [2024-11-28 02:37:18,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4113 states to 4113 states and 5389 transitions. [2024-11-28 02:37:18,121 INFO L78 Accepts]: Start accepts. Automaton has 4113 states and 5389 transitions. Word has length 131 [2024-11-28 02:37:18,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:37:18,122 INFO L471 AbstractCegarLoop]: Abstraction has 4113 states and 5389 transitions. [2024-11-28 02:37:18,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-28 02:37:18,122 INFO L276 IsEmpty]: Start isEmpty. Operand 4113 states and 5389 transitions. [2024-11-28 02:37:18,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-28 02:37:18,128 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:37:18,128 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:37:18,138 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-28 02:37:18,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-28 02:37:18,329 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:37:18,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:37:18,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1308788517, now seen corresponding path program 1 times [2024-11-28 02:37:18,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:37:18,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075534673] [2024-11-28 02:37:18,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:37:18,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:37:18,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:37:18,418 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-28 02:37:18,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:37:18,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075534673] [2024-11-28 02:37:18,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075534673] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:37:18,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [456122018] [2024-11-28 02:37:18,419 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:37:18,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:37:18,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:37:18,421 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:37:18,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 02:37:18,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:37:18,533 INFO L256 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:37:18,535 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:37:18,613 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 02:37:18,613 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:37:18,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [456122018] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:37:18,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:37:18,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-28 02:37:18,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005811731] [2024-11-28 02:37:18,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:37:18,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:37:18,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:37:18,615 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:37:18,615 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:37:18,615 INFO L87 Difference]: Start difference. First operand 4113 states and 5389 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-28 02:37:19,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:37:19,064 INFO L93 Difference]: Finished difference Result 8231 states and 11070 transitions. [2024-11-28 02:37:19,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:37:19,065 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 132 [2024-11-28 02:37:19,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:37:19,109 INFO L225 Difference]: With dead ends: 8231 [2024-11-28 02:37:19,109 INFO L226 Difference]: Without dead ends: 5800 [2024-11-28 02:37:19,116 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:37:19,117 INFO L435 NwaCegarLoop]: 215 mSDtfsCounter, 78 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:37:19,117 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 339 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:37:19,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5800 states. [2024-11-28 02:37:19,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5800 to 5685. [2024-11-28 02:37:19,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5685 states, 4610 states have (on average 1.2626898047722344) internal successors, (5821), 4684 states have internal predecessors, (5821), 595 states have call successors, (595), 425 states have call predecessors, (595), 479 states have return successors, (1089), 579 states have call predecessors, (1089), 595 states have call successors, (1089) [2024-11-28 02:37:19,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5685 states to 5685 states and 7505 transitions. [2024-11-28 02:37:19,797 INFO L78 Accepts]: Start accepts. Automaton has 5685 states and 7505 transitions. Word has length 132 [2024-11-28 02:37:19,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:37:19,798 INFO L471 AbstractCegarLoop]: Abstraction has 5685 states and 7505 transitions. [2024-11-28 02:37:19,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-28 02:37:19,798 INFO L276 IsEmpty]: Start isEmpty. Operand 5685 states and 7505 transitions. [2024-11-28 02:37:19,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-28 02:37:19,805 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:37:19,806 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:37:19,816 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-28 02:37:20,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:37:20,006 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:37:20,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:37:20,007 INFO L85 PathProgramCache]: Analyzing trace with hash 32911017, now seen corresponding path program 1 times [2024-11-28 02:37:20,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:37:20,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832519643] [2024-11-28 02:37:20,008 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:37:20,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:37:20,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:37:20,129 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-28 02:37:20,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:37:20,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832519643] [2024-11-28 02:37:20,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832519643] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:37:20,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [219601482] [2024-11-28 02:37:20,130 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:37:20,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:37:20,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:37:20,133 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:37:20,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 02:37:20,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:37:20,255 INFO L256 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 02:37:20,260 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:37:20,376 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-28 02:37:20,376 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:37:20,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [219601482] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:37:20,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:37:20,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-28 02:37:20,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672676480] [2024-11-28 02:37:20,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:37:20,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:37:20,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:37:20,378 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:37:20,378 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:37:20,378 INFO L87 Difference]: Start difference. First operand 5685 states and 7505 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 02:37:20,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:37:20,993 INFO L93 Difference]: Finished difference Result 9269 states and 12412 transitions. [2024-11-28 02:37:20,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:37:20,994 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 133 [2024-11-28 02:37:20,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:37:21,021 INFO L225 Difference]: With dead ends: 9269 [2024-11-28 02:37:21,022 INFO L226 Difference]: Without dead ends: 5350 [2024-11-28 02:37:21,031 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:37:21,035 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 134 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:37:21,035 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 220 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:37:21,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5350 states. [2024-11-28 02:37:21,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5350 to 3847. [2024-11-28 02:37:21,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3847 states, 3130 states have (on average 1.2300319488817892) internal successors, (3850), 3172 states have internal predecessors, (3850), 405 states have call successors, (405), 283 states have call predecessors, (405), 311 states have return successors, (728), 393 states have call predecessors, (728), 405 states have call successors, (728) [2024-11-28 02:37:21,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3847 states to 3847 states and 4983 transitions. [2024-11-28 02:37:21,446 INFO L78 Accepts]: Start accepts. Automaton has 3847 states and 4983 transitions. Word has length 133 [2024-11-28 02:37:21,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:37:21,446 INFO L471 AbstractCegarLoop]: Abstraction has 3847 states and 4983 transitions. [2024-11-28 02:37:21,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 02:37:21,446 INFO L276 IsEmpty]: Start isEmpty. Operand 3847 states and 4983 transitions. [2024-11-28 02:37:21,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-28 02:37:21,451 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:37:21,451 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:37:21,460 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-28 02:37:21,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:37:21,657 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:37:21,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:37:21,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1873492249, now seen corresponding path program 1 times [2024-11-28 02:37:21,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:37:21,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566617939] [2024-11-28 02:37:21,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:37:21,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:37:21,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:37:21,747 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-28 02:37:21,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:37:21,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566617939] [2024-11-28 02:37:21,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566617939] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:37:21,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [933764323] [2024-11-28 02:37:21,747 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:37:21,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:37:21,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:37:21,749 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:37:21,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 02:37:21,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:37:21,856 INFO L256 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 02:37:21,859 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:37:21,952 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-28 02:37:21,952 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:37:21,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [933764323] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:37:21,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:37:21,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-28 02:37:21,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590880685] [2024-11-28 02:37:21,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:37:21,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:37:21,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:37:21,954 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:37:21,954 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:37:21,954 INFO L87 Difference]: Start difference. First operand 3847 states and 4983 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 02:37:22,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:37:22,388 INFO L93 Difference]: Finished difference Result 5977 states and 7699 transitions. [2024-11-28 02:37:22,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:37:22,388 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 133 [2024-11-28 02:37:22,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:37:22,400 INFO L225 Difference]: With dead ends: 5977 [2024-11-28 02:37:22,400 INFO L226 Difference]: Without dead ends: 2142 [2024-11-28 02:37:22,409 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:37:22,410 INFO L435 NwaCegarLoop]: 85 mSDtfsCounter, 169 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:37:22,410 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 213 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:37:22,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2142 states. [2024-11-28 02:37:22,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2142 to 2120. [2024-11-28 02:37:22,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2120 states, 1724 states have (on average 1.1409512761020881) internal successors, (1967), 1742 states have internal predecessors, (1967), 223 states have call successors, (223), 158 states have call predecessors, (223), 172 states have return successors, (296), 221 states have call predecessors, (296), 223 states have call successors, (296) [2024-11-28 02:37:22,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2120 states to 2120 states and 2486 transitions. [2024-11-28 02:37:22,619 INFO L78 Accepts]: Start accepts. Automaton has 2120 states and 2486 transitions. Word has length 133 [2024-11-28 02:37:22,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:37:22,620 INFO L471 AbstractCegarLoop]: Abstraction has 2120 states and 2486 transitions. [2024-11-28 02:37:22,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 02:37:22,620 INFO L276 IsEmpty]: Start isEmpty. Operand 2120 states and 2486 transitions. [2024-11-28 02:37:22,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-28 02:37:22,623 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:37:22,623 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:37:22,632 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-28 02:37:22,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:37:22,827 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:37:22,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:37:22,828 INFO L85 PathProgramCache]: Analyzing trace with hash -272421143, now seen corresponding path program 1 times [2024-11-28 02:37:22,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:37:22,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942144806] [2024-11-28 02:37:22,828 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:37:22,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:37:22,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:37:22,901 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-28 02:37:22,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:37:22,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942144806] [2024-11-28 02:37:22,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942144806] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:37:22,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [703592106] [2024-11-28 02:37:22,902 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:37:22,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:37:22,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:37:22,904 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:37:22,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-28 02:37:23,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:37:23,015 INFO L256 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 02:37:23,018 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:37:23,145 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 54 proven. 16 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-28 02:37:23,146 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:37:23,242 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-28 02:37:23,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [703592106] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 02:37:23,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:37:23,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 4] total 7 [2024-11-28 02:37:23,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759842938] [2024-11-28 02:37:23,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:37:23,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:37:23,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:37:23,244 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:37:23,244 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:37:23,244 INFO L87 Difference]: Start difference. First operand 2120 states and 2486 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-28 02:37:23,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:37:23,735 INFO L93 Difference]: Finished difference Result 3952 states and 4606 transitions. [2024-11-28 02:37:23,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:37:23,735 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 133 [2024-11-28 02:37:23,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:37:23,750 INFO L225 Difference]: With dead ends: 3952 [2024-11-28 02:37:23,751 INFO L226 Difference]: Without dead ends: 3950 [2024-11-28 02:37:23,752 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:37:23,754 INFO L435 NwaCegarLoop]: 229 mSDtfsCounter, 205 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:37:23,754 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 413 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:37:23,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3950 states. [2024-11-28 02:37:24,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3950 to 3627. [2024-11-28 02:37:24,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3627 states, 2951 states have (on average 1.1382582175533718) internal successors, (3359), 2979 states have internal predecessors, (3359), 381 states have call successors, (381), 268 states have call predecessors, (381), 294 states have return successors, (489), 381 states have call predecessors, (489), 381 states have call successors, (489) [2024-11-28 02:37:24,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3627 states to 3627 states and 4229 transitions. [2024-11-28 02:37:24,194 INFO L78 Accepts]: Start accepts. Automaton has 3627 states and 4229 transitions. Word has length 133 [2024-11-28 02:37:24,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:37:24,194 INFO L471 AbstractCegarLoop]: Abstraction has 3627 states and 4229 transitions. [2024-11-28 02:37:24,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-28 02:37:24,194 INFO L276 IsEmpty]: Start isEmpty. Operand 3627 states and 4229 transitions. [2024-11-28 02:37:24,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2024-11-28 02:37:24,205 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:37:24,205 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-28 02:37:24,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-28 02:37:24,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:37:24,410 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:37:24,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:37:24,411 INFO L85 PathProgramCache]: Analyzing trace with hash 908484328, now seen corresponding path program 1 times [2024-11-28 02:37:24,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:37:24,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581228883] [2024-11-28 02:37:24,412 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:37:24,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:37:24,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:37:24,562 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2024-11-28 02:37:24,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:37:24,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581228883] [2024-11-28 02:37:24,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581228883] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:37:24,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1506599691] [2024-11-28 02:37:24,563 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:37:24,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:37:24,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:37:24,566 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:37:24,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-28 02:37:24,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:37:24,740 INFO L256 TraceCheckSpWp]: Trace formula consists of 684 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 02:37:24,746 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:37:24,806 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 220 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2024-11-28 02:37:24,806 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:37:24,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1506599691] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:37:24,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:37:24,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-11-28 02:37:24,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998756828] [2024-11-28 02:37:24,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:37:24,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:37:24,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:37:24,809 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:37:24,810 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:37:24,810 INFO L87 Difference]: Start difference. First operand 3627 states and 4229 transitions. Second operand has 6 states, 6 states have (on average 22.0) internal successors, (132), 5 states have internal predecessors, (132), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 02:37:25,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:37:25,078 INFO L93 Difference]: Finished difference Result 4966 states and 5773 transitions. [2024-11-28 02:37:25,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:37:25,079 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.0) internal successors, (132), 5 states have internal predecessors, (132), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 237 [2024-11-28 02:37:25,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:37:25,089 INFO L225 Difference]: With dead ends: 4966 [2024-11-28 02:37:25,089 INFO L226 Difference]: Without dead ends: 1355 [2024-11-28 02:37:25,096 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:37:25,097 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 0 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:37:25,097 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 651 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:37:25,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1355 states. [2024-11-28 02:37:25,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1355 to 1355. [2024-11-28 02:37:25,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1355 states, 1108 states have (on average 1.1263537906137184) internal successors, (1248), 1120 states have internal predecessors, (1248), 124 states have call successors, (124), 94 states have call predecessors, (124), 122 states have return successors, (184), 140 states have call predecessors, (184), 124 states have call successors, (184) [2024-11-28 02:37:25,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1355 states to 1355 states and 1556 transitions. [2024-11-28 02:37:25,328 INFO L78 Accepts]: Start accepts. Automaton has 1355 states and 1556 transitions. Word has length 237 [2024-11-28 02:37:25,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:37:25,329 INFO L471 AbstractCegarLoop]: Abstraction has 1355 states and 1556 transitions. [2024-11-28 02:37:25,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.0) internal successors, (132), 5 states have internal predecessors, (132), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 02:37:25,329 INFO L276 IsEmpty]: Start isEmpty. Operand 1355 states and 1556 transitions. [2024-11-28 02:37:25,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2024-11-28 02:37:25,336 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:37:25,336 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:37:25,346 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-28 02:37:25,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:37:25,537 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:37:25,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:37:25,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1325235523, now seen corresponding path program 1 times [2024-11-28 02:37:25,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:37:25,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724852624] [2024-11-28 02:37:25,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:37:25,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:37:25,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:37:25,676 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-11-28 02:37:25,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:37:25,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724852624] [2024-11-28 02:37:25,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724852624] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:37:25,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1048847334] [2024-11-28 02:37:25,676 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:37:25,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:37:25,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:37:25,679 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:37:25,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-28 02:37:25,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:37:25,829 INFO L256 TraceCheckSpWp]: Trace formula consists of 677 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:37:25,833 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:37:25,866 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 187 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-28 02:37:25,866 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:37:25,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1048847334] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:37:25,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:37:25,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-28 02:37:25,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822350764] [2024-11-28 02:37:25,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:37:25,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:37:25,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:37:25,868 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:37:25,868 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:37:25,869 INFO L87 Difference]: Start difference. First operand 1355 states and 1556 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 02:37:26,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:37:26,004 INFO L93 Difference]: Finished difference Result 2366 states and 2728 transitions. [2024-11-28 02:37:26,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:37:26,004 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 239 [2024-11-28 02:37:26,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:37:26,011 INFO L225 Difference]: With dead ends: 2366 [2024-11-28 02:37:26,011 INFO L226 Difference]: Without dead ends: 1250 [2024-11-28 02:37:26,014 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:37:26,014 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 92 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:37:26,014 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 255 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:37:26,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2024-11-28 02:37:26,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1206. [2024-11-28 02:37:26,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1206 states, 995 states have (on average 1.1155778894472361) internal successors, (1110), 1004 states have internal predecessors, (1110), 106 states have call successors, (106), 79 states have call predecessors, (106), 104 states have return successors, (148), 122 states have call predecessors, (148), 106 states have call successors, (148) [2024-11-28 02:37:26,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1206 states to 1206 states and 1364 transitions. [2024-11-28 02:37:26,131 INFO L78 Accepts]: Start accepts. Automaton has 1206 states and 1364 transitions. Word has length 239 [2024-11-28 02:37:26,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:37:26,131 INFO L471 AbstractCegarLoop]: Abstraction has 1206 states and 1364 transitions. [2024-11-28 02:37:26,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 02:37:26,132 INFO L276 IsEmpty]: Start isEmpty. Operand 1206 states and 1364 transitions. [2024-11-28 02:37:26,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2024-11-28 02:37:26,136 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:37:26,137 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:37:26,146 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-28 02:37:26,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-28 02:37:26,341 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:37:26,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:37:26,342 INFO L85 PathProgramCache]: Analyzing trace with hash 584581189, now seen corresponding path program 1 times [2024-11-28 02:37:26,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:37:26,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792213053] [2024-11-28 02:37:26,342 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:37:26,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:37:26,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:37:26,454 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-11-28 02:37:26,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:37:26,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792213053] [2024-11-28 02:37:26,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792213053] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:37:26,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1110425395] [2024-11-28 02:37:26,455 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:37:26,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:37:26,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:37:26,457 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:37:26,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-28 02:37:26,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:37:26,614 INFO L256 TraceCheckSpWp]: Trace formula consists of 680 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:37:26,620 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:37:26,662 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 199 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2024-11-28 02:37:26,662 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:37:26,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1110425395] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:37:26,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:37:26,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-28 02:37:26,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542730189] [2024-11-28 02:37:26,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:37:26,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:37:26,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:37:26,664 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:37:26,664 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:37:26,664 INFO L87 Difference]: Start difference. First operand 1206 states and 1364 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 02:37:26,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:37:26,826 INFO L93 Difference]: Finished difference Result 2010 states and 2285 transitions. [2024-11-28 02:37:26,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:37:26,827 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 239 [2024-11-28 02:37:26,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:37:26,833 INFO L225 Difference]: With dead ends: 2010 [2024-11-28 02:37:26,834 INFO L226 Difference]: Without dead ends: 1206 [2024-11-28 02:37:26,835 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:37:26,836 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 0 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:37:26,837 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 517 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:37:26,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1206 states. [2024-11-28 02:37:26,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1206 to 1206. [2024-11-28 02:37:26,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1206 states, 995 states have (on average 1.1115577889447237) internal successors, (1106), 1004 states have internal predecessors, (1106), 106 states have call successors, (106), 79 states have call predecessors, (106), 104 states have return successors, (148), 122 states have call predecessors, (148), 106 states have call successors, (148) [2024-11-28 02:37:26,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1206 states to 1206 states and 1360 transitions. [2024-11-28 02:37:26,957 INFO L78 Accepts]: Start accepts. Automaton has 1206 states and 1360 transitions. Word has length 239 [2024-11-28 02:37:26,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:37:26,959 INFO L471 AbstractCegarLoop]: Abstraction has 1206 states and 1360 transitions. [2024-11-28 02:37:26,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 02:37:26,959 INFO L276 IsEmpty]: Start isEmpty. Operand 1206 states and 1360 transitions. [2024-11-28 02:37:26,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2024-11-28 02:37:26,965 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:37:26,966 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:37:26,975 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-28 02:37:27,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:37:27,166 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:37:27,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:37:27,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1160548559, now seen corresponding path program 2 times [2024-11-28 02:37:27,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:37:27,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462515105] [2024-11-28 02:37:27,167 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:37:27,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:37:27,185 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 02:37:27,188 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:37:27,226 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-28 02:37:27,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:37:27,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462515105] [2024-11-28 02:37:27,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462515105] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:37:27,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:37:27,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:37:27,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160746504] [2024-11-28 02:37:27,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:37:27,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:37:27,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:37:27,228 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:37:27,228 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:37:27,228 INFO L87 Difference]: Start difference. First operand 1206 states and 1360 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 02:37:27,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:37:27,319 INFO L93 Difference]: Finished difference Result 1691 states and 1922 transitions. [2024-11-28 02:37:27,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:37:27,320 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 240 [2024-11-28 02:37:27,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:37:27,323 INFO L225 Difference]: With dead ends: 1691 [2024-11-28 02:37:27,324 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 02:37:27,326 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:37:27,326 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 0 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:37:27,328 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 506 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:37:27,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 02:37:27,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 02:37:27,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:37:27,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 02:37:27,332 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 240 [2024-11-28 02:37:27,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:37:27,332 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 02:37:27,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 02:37:27,333 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 02:37:27,333 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 02:37:27,336 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-11-28 02:37:27,337 INFO L782 garLoopResultBuilder]: Registering result SAFE for location error1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-11-28 02:37:27,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-28 02:37:27,340 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:37:27,342 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 02:37:53,426 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 02:37:53,478 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:37:53 BoogieIcfgContainer [2024-11-28 02:37:53,479 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 02:37:53,479 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 02:37:53,480 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 02:37:53,480 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 02:37:53,481 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:37:01" (3/4) ... [2024-11-28 02:37:53,484 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 02:37:53,497 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure immediate_notify [2024-11-28 02:37:53,498 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure immediate_notify_threads [2024-11-28 02:37:53,502 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure fire_delta_events2 [2024-11-28 02:37:53,502 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure activate_threads2 [2024-11-28 02:37:53,502 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure update_channels2 [2024-11-28 02:37:53,503 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure exists_runnable_thread1 [2024-11-28 02:37:53,503 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure error1 [2024-11-28 02:37:53,503 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure exists_runnable_thread2 [2024-11-28 02:37:53,503 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure reset_delta_events2 [2024-11-28 02:37:53,529 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2024-11-28 02:37:53,532 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-28 02:37:53,533 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-28 02:37:53,534 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 02:37:53,713 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 02:37:53,713 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 02:37:53,714 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 02:37:53,714 INFO L158 Benchmark]: Toolchain (without parser) took 53388.11ms. Allocated memory was 142.6MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 117.0MB in the beginning and 1.1GB in the end (delta: -967.3MB). Peak memory consumption was 215.5MB. Max. memory is 16.1GB. [2024-11-28 02:37:53,715 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 117.4MB. Free memory is still 72.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:37:53,715 INFO L158 Benchmark]: CACSL2BoogieTranslator took 436.66ms. Allocated memory is still 142.6MB. Free memory was 116.8MB in the beginning and 101.2MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 02:37:53,715 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.99ms. Allocated memory is still 142.6MB. Free memory was 101.0MB in the beginning and 98.8MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:37:53,715 INFO L158 Benchmark]: Boogie Preprocessor took 80.09ms. Allocated memory is still 142.6MB. Free memory was 98.8MB in the beginning and 96.3MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:37:53,716 INFO L158 Benchmark]: RCFGBuilder took 744.58ms. Allocated memory is still 142.6MB. Free memory was 96.3MB in the beginning and 70.3MB in the end (delta: 26.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-28 02:37:53,716 INFO L158 Benchmark]: TraceAbstraction took 51821.30ms. Allocated memory was 142.6MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 69.8MB in the beginning and 1.1GB in the end (delta: -1.0GB). Peak memory consumption was 745.5MB. Max. memory is 16.1GB. [2024-11-28 02:37:53,716 INFO L158 Benchmark]: Witness Printer took 234.19ms. Allocated memory is still 1.3GB. Free memory was 1.1GB in the beginning and 1.1GB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:37:53,717 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 117.4MB. Free memory is still 72.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 436.66ms. Allocated memory is still 142.6MB. Free memory was 116.8MB in the beginning and 101.2MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.99ms. Allocated memory is still 142.6MB. Free memory was 101.0MB in the beginning and 98.8MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 80.09ms. Allocated memory is still 142.6MB. Free memory was 98.8MB in the beginning and 96.3MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 744.58ms. Allocated memory is still 142.6MB. Free memory was 96.3MB in the beginning and 70.3MB in the end (delta: 26.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 51821.30ms. Allocated memory was 142.6MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 69.8MB in the beginning and 1.1GB in the end (delta: -1.0GB). Peak memory consumption was 745.5MB. Max. memory is 16.1GB. * Witness Printer took 234.19ms. Allocated memory is still 1.3GB. Free memory was 1.1GB in the beginning and 1.1GB 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.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: 390]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 27]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 173 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 25.6s, OverallIterations: 26, TraceHistogramMax: 7, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 9.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4628 SdHoareTripleChecker+Valid, 2.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4568 mSDsluCounter, 13302 SdHoareTripleChecker+Invalid, 2.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7730 mSDsCounter, 411 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2115 IncrementalHoareTripleChecker+Invalid, 2526 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 411 mSolverCounterUnsat, 5572 mSDtfsCounter, 2115 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2495 GetRequests, 2363 SyntacticMatches, 0 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5685occurred in iteration=19, InterpolantAutomatonStates: 130, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 5.7s AutomataMinimizationTime, 26 MinimizatonAttempts, 2758 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 4.4s InterpolantComputationTime, 4887 NumberOfCodeBlocks, 4698 NumberOfCodeBlocksAsserted, 42 NumberOfCheckSat, 5102 ConstructedInterpolants, 0 QuantifiedInterpolants, 6802 SizeOfPredicates, 2 NumberOfNonLiveVariables, 6747 ConjunctsInSsa, 64 ConjunctsInUnsatCore, 45 InterpolantComputations, 25 PerfectInterpolantSequences, 3685/3918 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 425]: Location Invariant Derived location invariant: ((((((((((((((((((t1_pc == 1) && (2 <= t1_st)) && (2 <= E_1)) && (p_num_write == 0)) && (c_num_read == 0)) && (((long long) local + 1) == token)) && (p_last_write == q_buf_0)) && (p_dw_pc <= 0)) && (2 <= E_M)) && (q_free == 0)) && (2 <= T1_E)) && (p_dw_st == 0)) && (c_dr_pc == 0)) && (c_last_read == p_last_write)) && (M_E == 2)) || ((((((((((((((((2 <= E_1) && (p_num_write == 0)) && (c_num_read == 0)) && (p_last_write == q_buf_0)) && (m_pc == t1_pc)) && (p_dw_pc <= 0)) && (2 <= E_M)) && (m_pc != 1)) && (q_free == 0)) && (2 <= T1_E)) && (t1_st == 0)) && (p_dw_st == 0)) && (c_dr_pc == 0)) && (c_last_read == p_last_write)) && (token == local)) && (M_E == 2))) || ((((((((((((((((2 <= t1_st) && (2 <= E_1)) && (p_num_write == 0)) && (c_num_read == 0)) && (p_last_write == q_buf_0)) && (m_pc == t1_pc)) && (p_dw_pc <= 0)) && (2 <= E_M)) && (m_pc != 1)) && (q_free == 0)) && (2 <= T1_E)) && (p_dw_st == 0)) && (c_dr_pc == 0)) && (c_last_read == p_last_write)) && (token == local)) && (M_E == 2))) || (((((((((((((((t1_pc == 1) && (2 <= t1_st)) && (2 <= E_1)) && (p_num_write == 0)) && (c_num_read == 0)) && (p_last_write == q_buf_0)) && (p_dw_pc <= 0)) && (2 <= E_M)) && (m_pc != 1)) && (q_free == 0)) && (2 <= T1_E)) && (p_dw_st == 0)) && (c_dr_pc == 0)) && (c_last_read == p_last_write)) && (M_E == 2))) - InvariantResult [Line: 469]: Location Invariant Derived location invariant: (((((((((((((p_num_write == 0) && (c_num_read == 0)) && (p_last_write == q_buf_0)) && (p_dw_pc <= 0)) && (m_pc != 1)) && (q_free == 0)) && (2 <= m_st)) && (p_dw_st == 0)) && (c_dr_pc == 0)) && (c_last_read == p_last_write)) || (((((((((((((((p_num_write == 0) && (c_num_read == 0)) && (p_last_write == q_buf_0)) && (p_dw_pc <= 0)) && (2 <= E_M)) && (T1_E == 2)) && (m_st == 0)) && (m_pc != 1)) && (q_free == 0)) && (p_dw_st == 0)) && (c_dr_pc == 0)) && (c_last_read == p_last_write)) && (token == local)) && (E_1 == 2)) && (M_E == 2))) || (((((((((((((2 <= E_1) && (p_num_write == 0)) && (c_num_read == 0)) && (p_last_write == q_buf_0)) && (p_dw_pc <= 0)) && (2 <= E_M)) && (q_free == 0)) && (2 <= m_st)) && (2 <= T1_E)) && (p_dw_st == 0)) && (c_dr_pc == 0)) && (c_last_read == p_last_write)) && (M_E == 2))) || ((((((((((((((2 <= E_1) && (p_num_write == 0)) && (c_num_read == 0)) && (((long long) local + 1) == token)) && (p_last_write == q_buf_0)) && (p_dw_pc <= 0)) && (2 <= E_M)) && (m_st == 0)) && (q_free == 0)) && (2 <= T1_E)) && (p_dw_st == 0)) && (c_dr_pc == 0)) && (c_last_read == p_last_write)) && (M_E == 2))) - InvariantResult [Line: 580]: Loop Invariant Derived loop invariant: (((((((((((((((((((((2 <= t1_st) && (2 <= E_1)) && (p_num_write == 0)) && (c_num_read == 0)) && (p_last_write == q_buf_0)) && (p_dw_pc <= 0)) && (2 <= E_M)) && (q_free == 0)) && (2 <= m_st)) && (2 <= T1_E)) && (p_dw_st == 0)) && (c_dr_pc == 0)) && (c_last_read == p_last_write)) && (token == local)) || ((((((((((((((((t1_pc == 1) && (2 <= t1_st)) && (2 <= E_1)) && (p_num_write == 0)) && (c_num_read == 0)) && (((long long) local + 1) == token)) && (p_last_write == q_buf_0)) && (p_dw_pc <= 0)) && (2 <= E_M)) && (m_st == 0)) && (q_free == 0)) && (2 <= T1_E)) && (p_dw_st == 0)) && (c_dr_pc == 0)) && (c_last_read == p_last_write)) && (M_E == 2))) || (((((((((((((((((t1_pc == 1) && (2 <= t1_st)) && (p_num_write == 0)) && (c_num_read == 0)) && (p_last_write == q_buf_0)) && (p_dw_pc <= 0)) && (2 <= E_M)) && (T1_E == 2)) && (m_st == 0)) && (m_pc != 1)) && (q_free == 0)) && (p_dw_st == 0)) && (c_dr_pc == 0)) && (c_last_read == p_last_write)) && (token == local)) && (E_1 == 2)) && (M_E == 2))) || ((((((((((p_num_write == 0) && (c_num_read == 0)) && (p_last_write == q_buf_0)) && (p_dw_pc <= 0)) && (m_pc != 1)) && (q_free == 0)) && (2 <= m_st)) && (p_dw_st == 0)) && (c_dr_pc == 0)) && (c_last_read == p_last_write))) || (((((((((((((((((p_num_write == 0) && (c_num_read == 0)) && (p_last_write == q_buf_0)) && (m_pc == t1_pc)) && (p_dw_pc <= 0)) && (2 <= E_M)) && (T1_E == 2)) && (m_st == 0)) && (m_pc != 1)) && (q_free == 0)) && (t1_st == 0)) && (p_dw_st == 0)) && (c_dr_pc == 0)) && (c_last_read == p_last_write)) && (token == local)) && (E_1 == 2)) && (M_E == 2))) || (((((((((((((((2 <= E_1) && (p_num_write == 0)) && (c_num_read == 0)) && (p_last_write == q_buf_0)) && (p_dw_pc <= 0)) && (2 <= E_M)) && (q_free == 0)) && (2 <= m_st)) && (2 <= T1_E)) && (t1_st == 0)) && (p_dw_st == 0)) && (c_dr_pc == 0)) && (c_last_read == p_last_write)) && (token == local)) && (M_E == 2))) || (((((((((((((((((2 <= t1_st) && (p_num_write == 0)) && (c_num_read == 0)) && (p_last_write == q_buf_0)) && (m_pc == t1_pc)) && (p_dw_pc <= 0)) && (2 <= E_M)) && (T1_E == 2)) && (m_st == 0)) && (m_pc != 1)) && (q_free == 0)) && (p_dw_st == 0)) && (c_dr_pc == 0)) && (c_last_read == p_last_write)) && (token == local)) && (E_1 == 2)) && (M_E == 2))) || ((((((((((((((t1_pc == 1) && (2 <= t1_st)) && (2 <= E_1)) && (p_num_write == 0)) && (c_num_read == 0)) && (p_last_write == q_buf_0)) && (p_dw_pc <= 0)) && (2 <= E_M)) && (q_free == 0)) && (2 <= m_st)) && (2 <= T1_E)) && (p_dw_st == 0)) && (c_dr_pc == 0)) && (c_last_read == p_last_write))) - InvariantResult [Line: 168]: Location Invariant Derived location invariant: ((((((((((((c_num_read == p_num_write) && (p_last_write == q_buf_0)) && (m_pc == t1_pc)) && (T1_E == 2)) && (q_free == 1)) && (m_pc != 1)) && (p_dw_st == 0)) && (c_last_read == p_last_write)) && (E_1 == 2)) && (M_E == 2)) || (((((((((p_last_write == q_buf_0) && (((long long) c_num_read + 1) == p_num_write)) && (m_pc == t1_pc)) && (T1_E == 2)) && (m_pc != 1)) && (q_free == 0)) && (E_1 == 2)) && (2 <= p_dw_st)) && (M_E == 2))) || ((((((((((c_num_read == p_num_write) && (p_last_write == q_buf_0)) && (m_pc == t1_pc)) && (T1_E == 2)) && (q_free == 1)) && (m_pc != 1)) && (c_last_read == p_last_write)) && (E_1 == 2)) && (2 <= p_dw_st)) && (M_E == 2))) - InvariantResult [Line: 331]: Loop Invariant Derived loop invariant: (((((((((((((((c_num_read == p_num_write) && (c_dr_st == 2)) && (p_last_write == q_buf_0)) && (m_pc == t1_pc)) && (T1_E == 2)) && (q_free == 1)) && (m_pc != 1)) && (p_dw_st == 0)) && (E_1 == 2)) && (M_E == 2)) || ((((((((((c_num_read == p_num_write) && (c_dr_st == 2)) && (p_last_write == q_buf_0)) && (m_pc == t1_pc)) && (T1_E == 2)) && (q_free == 1)) && (m_pc != 1)) && (E_1 == 2)) && (2 <= p_dw_st)) && (M_E == 2))) || (((((((((c_dr_st == 2) && (p_last_write == q_buf_0)) && (m_pc == t1_pc)) && (T1_E == 2)) && (m_pc != 1)) && (q_free == 0)) && (E_1 == 2)) && (2 <= p_dw_st)) && (M_E == 2))) || (((((((((((((p_num_write == 0) && (c_num_read == 0)) && (p_last_write == q_buf_0)) && (m_pc == t1_pc)) && (p_dw_pc <= 0)) && (T1_E == 2)) && (q_free == 1)) && (m_pc != 1)) && (p_dw_st == 0)) && (c_dr_pc == 0)) && (c_last_read == p_last_write)) && (E_1 == 2)) && (M_E == 2))) || (((((((((((((p_num_write == 0) && (c_num_read == 0)) && (p_last_write == q_buf_0)) && (m_pc == t1_pc)) && (p_dw_pc <= 0)) && (T1_E == 2)) && (q_free == 1)) && (m_pc != 1)) && (c_dr_pc == 0)) && (c_last_read == p_last_write)) && (E_1 == 2)) && (2 <= p_dw_st)) && (M_E == 2))) || (((((((((p_last_write == q_buf_0) && (((long long) c_num_read + 1) == p_num_write)) && (m_pc == t1_pc)) && (T1_E == 2)) && (m_pc != 1)) && (q_free == 0)) && (E_1 == 2)) && (2 <= p_dw_st)) && (M_E == 2))) - InvariantResult [Line: 125]: Location Invariant Derived location invariant: (((((((((((((((p_num_write == 0) && (c_num_read == 0)) && (p_last_write == q_buf_0)) && (m_pc == t1_pc)) && (p_dw_pc <= 0)) && (T1_E == 2)) && (q_free == 1)) && (m_pc != 1)) && (c_dr_pc == 0)) && (c_last_read == p_last_write)) && (E_1 == 2)) && (M_E == 2)) || (((((((((c_num_read == p_num_write) && (c_dr_st == 2)) && (p_last_write == q_buf_0)) && (m_pc == t1_pc)) && (T1_E == 2)) && (q_free == 1)) && (m_pc != 1)) && (E_1 == 2)) && (M_E == 2))) || ((((((((c_dr_st == 2) && (p_last_write == q_buf_0)) && (m_pc == t1_pc)) && (T1_E == 2)) && (m_pc != 1)) && (q_free == 0)) && (E_1 == 2)) && (M_E == 2))) || ((((((((p_last_write == q_buf_0) && (((long long) c_num_read + 1) == p_num_write)) && (m_pc == t1_pc)) && (T1_E == 2)) && (m_pc != 1)) && (q_free == 0)) && (E_1 == 2)) && (M_E == 2))) - InvariantResult [Line: 255]: Loop Invariant Derived loop invariant: (((((((((((((((c_num_read == p_num_write) && (c_dr_st == 2)) && (p_last_write == q_buf_0)) && (m_pc == t1_pc)) && (T1_E == 2)) && (q_free == 1)) && (m_pc != 1)) && (p_dw_st == 0)) && (E_1 == 2)) && (M_E == 2)) || ((((((((((c_num_read == p_num_write) && (c_dr_st == 2)) && (p_last_write == q_buf_0)) && (m_pc == t1_pc)) && (T1_E == 2)) && (q_free == 1)) && (m_pc != 1)) && (E_1 == 2)) && (2 <= p_dw_st)) && (M_E == 2))) || (((((((((c_dr_st == 2) && (p_last_write == q_buf_0)) && (m_pc == t1_pc)) && (T1_E == 2)) && (m_pc != 1)) && (q_free == 0)) && (E_1 == 2)) && (2 <= p_dw_st)) && (M_E == 2))) || (((((((((((((p_num_write == 0) && (c_num_read == 0)) && (p_last_write == q_buf_0)) && (m_pc == t1_pc)) && (p_dw_pc <= 0)) && (T1_E == 2)) && (q_free == 1)) && (m_pc != 1)) && (p_dw_st == 0)) && (c_dr_pc == 0)) && (c_last_read == p_last_write)) && (E_1 == 2)) && (M_E == 2))) || (((((((((((((p_num_write == 0) && (c_num_read == 0)) && (p_last_write == q_buf_0)) && (m_pc == t1_pc)) && (p_dw_pc <= 0)) && (T1_E == 2)) && (q_free == 1)) && (m_pc != 1)) && (c_dr_pc == 0)) && (c_last_read == p_last_write)) && (E_1 == 2)) && (2 <= p_dw_st)) && (M_E == 2))) || (((((((((p_last_write == q_buf_0) && (((long long) c_num_read + 1) == p_num_write)) && (m_pc == t1_pc)) && (T1_E == 2)) && (m_pc != 1)) && (q_free == 0)) && (E_1 == 2)) && (2 <= p_dw_st)) && (M_E == 2))) - InvariantResult [Line: 798]: Loop Invariant Derived loop invariant: ((((((((((((((((((2 <= t1_st) && (2 <= E_1)) && (p_num_write == 0)) && (c_num_read == 0)) && (p_last_write == q_buf_0)) && (p_dw_pc <= 0)) && (2 <= E_M)) && (q_free == 0)) && (2 <= m_st)) && (2 <= T1_E)) && (p_dw_st == 0)) && (c_dr_pc == 0)) && (c_last_read == p_last_write)) && (token == local)) || ((((((((((p_num_write == 0) && (c_num_read == 0)) && (p_last_write == q_buf_0)) && (p_dw_pc <= 0)) && (m_pc != 1)) && (q_free == 0)) && (2 <= m_st)) && (p_dw_st == 0)) && (c_dr_pc == 0)) && (c_last_read == p_last_write))) || (((((((((((((((((p_num_write == 0) && (c_num_read == 0)) && (p_last_write == q_buf_0)) && (m_pc == t1_pc)) && (p_dw_pc <= 0)) && (2 <= E_M)) && (T1_E == 2)) && (m_st == 0)) && (m_pc != 1)) && (q_free == 0)) && (t1_st == 0)) && (p_dw_st == 0)) && (c_dr_pc == 0)) && (c_last_read == p_last_write)) && (token == local)) && (E_1 == 2)) && (M_E == 2))) || (((((((((((((((((2 <= t1_st) && (p_num_write == 0)) && (c_num_read == 0)) && (p_last_write == q_buf_0)) && (m_pc == t1_pc)) && (p_dw_pc <= 0)) && (2 <= E_M)) && (T1_E == 2)) && (m_st == 0)) && (m_pc != 1)) && (q_free == 0)) && (p_dw_st == 0)) && (c_dr_pc == 0)) && (c_last_read == p_last_write)) && (token == local)) && (E_1 == 2)) && (M_E == 2))) || ((((((((((((((t1_pc == 1) && (2 <= t1_st)) && (2 <= E_1)) && (p_num_write == 0)) && (c_num_read == 0)) && (p_last_write == q_buf_0)) && (p_dw_pc <= 0)) && (2 <= E_M)) && (q_free == 0)) && (2 <= m_st)) && (2 <= T1_E)) && (p_dw_st == 0)) && (c_dr_pc == 0)) && (c_last_read == p_last_write))) RESULT: Ultimate proved your program to be correct! [2024-11-28 02:37:53,739 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc4a788-04ea-44f9-8d97-b95cd24af39f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE