./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label45+token_ring.07.cil-2.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_1afbd538-0bc5-402d-adb0-4835acc4f5c8/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afbd538-0bc5-402d-adb0-4835acc4f5c8/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afbd538-0bc5-402d-adb0-4835acc4f5c8/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afbd538-0bc5-402d-adb0-4835acc4f5c8/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label45+token_ring.07.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afbd538-0bc5-402d-adb0-4835acc4f5c8/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afbd538-0bc5-402d-adb0-4835acc4f5c8/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ea2a15ada4a316287b701d4046ee75147e37e2af1b0a94d8406d231cafa83990 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 07:19:28,459 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:19:28,512 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afbd538-0bc5-402d-adb0-4835acc4f5c8/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 07:19:28,516 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:19:28,516 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:19:28,537 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:19:28,537 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:19:28,537 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:19:28,538 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 07:19:28,538 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 07:19:28,538 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 07:19:28,538 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 07:19:28,538 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:19:28,538 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:19:28,538 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:19:28,539 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:19:28,539 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 07:19:28,539 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 07:19:28,539 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 07:19:28,539 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 07:19:28,539 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:19:28,539 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 07:19:28,539 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 07:19:28,539 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 07:19:28,539 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 07:19:28,540 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 07:19:28,540 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:19:28,540 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:19:28,540 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 07:19:28,540 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:19:28,540 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:19:28,540 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:19:28,540 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:19:28,540 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:19:28,540 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:19:28,541 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:19:28,541 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:19:28,541 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:19:28,541 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:19:28,541 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 07:19:28,541 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 07:19:28,541 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 07:19:28,541 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 07:19:28,541 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 07:19:28,542 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 07:19:28,542 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 07:19:28,542 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 07:19:28,542 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 07:19:28,542 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_1afbd538-0bc5-402d-adb0-4835acc4f5c8/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea2a15ada4a316287b701d4046ee75147e37e2af1b0a94d8406d231cafa83990 [2024-12-02 07:19:28,750 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:19:28,757 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:19:28,760 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:19:28,761 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:19:28,761 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:19:28,762 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afbd538-0bc5-402d-adb0-4835acc4f5c8/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/combinations/Problem05_label45+token_ring.07.cil-2.c [2024-12-02 07:19:31,421 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afbd538-0bc5-402d-adb0-4835acc4f5c8/bin/uautomizer-verify-84ZbGMXZE1/data/f7011da85/e12ed416979c4d6e99fa96db32e4ee6c/FLAG897412ad1 [2024-12-02 07:19:31,917 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:19:31,917 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afbd538-0bc5-402d-adb0-4835acc4f5c8/sv-benchmarks/c/combinations/Problem05_label45+token_ring.07.cil-2.c [2024-12-02 07:19:31,953 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afbd538-0bc5-402d-adb0-4835acc4f5c8/bin/uautomizer-verify-84ZbGMXZE1/data/f7011da85/e12ed416979c4d6e99fa96db32e4ee6c/FLAG897412ad1 [2024-12-02 07:19:31,966 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afbd538-0bc5-402d-adb0-4835acc4f5c8/bin/uautomizer-verify-84ZbGMXZE1/data/f7011da85/e12ed416979c4d6e99fa96db32e4ee6c [2024-12-02 07:19:31,968 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:19:31,969 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:19:31,970 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:19:31,970 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:19:31,973 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:19:31,974 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:19:31" (1/1) ... [2024-12-02 07:19:31,975 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e06b907 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:19:31, skipping insertion in model container [2024-12-02 07:19:31,975 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:19:31" (1/1) ... [2024-12-02 07:19:32,113 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:19:33,537 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_1afbd538-0bc5-402d-adb0-4835acc4f5c8/sv-benchmarks/c/combinations/Problem05_label45+token_ring.07.cil-2.c[380323,380336] [2024-12-02 07:19:33,573 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_1afbd538-0bc5-402d-adb0-4835acc4f5c8/sv-benchmarks/c/combinations/Problem05_label45+token_ring.07.cil-2.c[383339,383352] [2024-12-02 07:19:33,787 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:19:33,794 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:19:34,733 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_1afbd538-0bc5-402d-adb0-4835acc4f5c8/sv-benchmarks/c/combinations/Problem05_label45+token_ring.07.cil-2.c[380323,380336] [2024-12-02 07:19:34,738 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_1afbd538-0bc5-402d-adb0-4835acc4f5c8/sv-benchmarks/c/combinations/Problem05_label45+token_ring.07.cil-2.c[383339,383352] [2024-12-02 07:19:34,756 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:19:34,821 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:19:34,822 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:19:34 WrapperNode [2024-12-02 07:19:34,822 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:19:34,823 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:19:34,823 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:19:34,823 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:19:34,829 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:19:34" (1/1) ... [2024-12-02 07:19:34,899 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:19:34" (1/1) ... [2024-12-02 07:19:35,269 INFO L138 Inliner]: procedures = 58, calls = 63, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 12928 [2024-12-02 07:19:35,269 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:19:35,270 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:19:35,270 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:19:35,270 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:19:35,279 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:19:34" (1/1) ... [2024-12-02 07:19:35,279 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:19:34" (1/1) ... [2024-12-02 07:19:35,319 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:19:34" (1/1) ... [2024-12-02 07:19:35,375 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 07:19:35,376 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:19:34" (1/1) ... [2024-12-02 07:19:35,376 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:19:34" (1/1) ... [2024-12-02 07:19:35,536 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:19:34" (1/1) ... [2024-12-02 07:19:35,546 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:19:34" (1/1) ... [2024-12-02 07:19:35,585 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:19:34" (1/1) ... [2024-12-02 07:19:35,610 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:19:34" (1/1) ... [2024-12-02 07:19:35,625 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:19:34" (1/1) ... [2024-12-02 07:19:35,670 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:19:35,670 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:19:35,670 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:19:35,671 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:19:35,671 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:19:34" (1/1) ... [2024-12-02 07:19:35,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:19:35,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afbd538-0bc5-402d-adb0-4835acc4f5c8/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:19:35,700 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afbd538-0bc5-402d-adb0-4835acc4f5c8/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 07:19:35,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afbd538-0bc5-402d-adb0-4835acc4f5c8/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 07:19:35,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 07:19:35,725 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-12-02 07:19:35,725 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-12-02 07:19:35,725 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-12-02 07:19:35,725 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-12-02 07:19:35,725 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-12-02 07:19:35,726 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-12-02 07:19:35,726 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-12-02 07:19:35,726 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-12-02 07:19:35,726 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-12-02 07:19:35,726 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-12-02 07:19:35,726 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-12-02 07:19:35,726 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-12-02 07:19:35,726 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-12-02 07:19:35,726 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-12-02 07:19:35,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 07:19:35,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:19:35,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:19:35,835 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:19:35,837 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:19:43,149 INFO L? ?]: Removed 1729 outVars from TransFormulas that were not future-live. [2024-12-02 07:19:43,149 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:19:43,192 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 07:19:43,192 INFO L312 CfgBuilder]: Removed 22 assume(true) statements. [2024-12-02 07:19:43,193 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:19:43 BoogieIcfgContainer [2024-12-02 07:19:43,193 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 07:19:43,195 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 07:19:43,195 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 07:19:43,199 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 07:19:43,199 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:19:31" (1/3) ... [2024-12-02 07:19:43,199 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37bb7a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:19:43, skipping insertion in model container [2024-12-02 07:19:43,200 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:19:34" (2/3) ... [2024-12-02 07:19:43,200 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37bb7a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:19:43, skipping insertion in model container [2024-12-02 07:19:43,200 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:19:43" (3/3) ... [2024-12-02 07:19:43,201 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem05_label45+token_ring.07.cil-2.c [2024-12-02 07:19:43,211 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 07:19:43,213 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem05_label45+token_ring.07.cil-2.c that has 8 procedures, 2446 locations, 1 initial locations, 11 loop locations, and 2 error locations. [2024-12-02 07:19:43,291 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:19:43,301 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;@6151cfa3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:19:43,301 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-02 07:19:43,310 INFO L276 IsEmpty]: Start isEmpty. Operand has 2446 states, 2414 states have (on average 1.8500414250207124) internal successors, (4466), 2418 states have internal predecessors, (4466), 23 states have call successors, (23), 7 states have call predecessors, (23), 7 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-12-02 07:19:43,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-12-02 07:19:43,321 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:19:43,322 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:19:43,322 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:19:43,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:19:43,326 INFO L85 PathProgramCache]: Analyzing trace with hash -322529058, now seen corresponding path program 1 times [2024-12-02 07:19:43,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:19:43,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675166253] [2024-12-02 07:19:43,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:19:43,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:19:43,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:19:43,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:19:43,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:19:43,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675166253] [2024-12-02 07:19:43,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675166253] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:19:43,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:19:43,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:19:43,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094202115] [2024-12-02 07:19:43,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:19:43,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:19:43,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:19:43,631 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:19:43,632 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:19:43,637 INFO L87 Difference]: Start difference. First operand has 2446 states, 2414 states have (on average 1.8500414250207124) internal successors, (4466), 2418 states have internal predecessors, (4466), 23 states have call successors, (23), 7 states have call predecessors, (23), 7 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 07:19:43,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:19:43,787 INFO L93 Difference]: Finished difference Result 4879 states and 9001 transitions. [2024-12-02 07:19:43,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:19:43,789 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2024-12-02 07:19:43,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:19:43,808 INFO L225 Difference]: With dead ends: 4879 [2024-12-02 07:19:43,808 INFO L226 Difference]: Without dead ends: 2378 [2024-12-02 07:19:43,815 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:19:43,817 INFO L435 NwaCegarLoop]: 4425 mSDtfsCounter, 392 mSDsluCounter, 4022 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 8447 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:19:43,818 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 8447 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:19:43,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2378 states. [2024-12-02 07:19:43,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2378 to 2378. [2024-12-02 07:19:43,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2378 states, 2347 states have (on average 1.8376651043885812) internal successors, (4313), 2350 states have internal predecessors, (4313), 23 states have call successors, (23), 7 states have call predecessors, (23), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-12-02 07:19:43,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2378 states to 2378 states and 4357 transitions. [2024-12-02 07:19:43,922 INFO L78 Accepts]: Start accepts. Automaton has 2378 states and 4357 transitions. Word has length 122 [2024-12-02 07:19:43,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:19:43,923 INFO L471 AbstractCegarLoop]: Abstraction has 2378 states and 4357 transitions. [2024-12-02 07:19:43,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 07:19:43,923 INFO L276 IsEmpty]: Start isEmpty. Operand 2378 states and 4357 transitions. [2024-12-02 07:19:43,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-12-02 07:19:43,926 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:19:43,926 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:19:43,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 07:19:43,927 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:19:43,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:19:43,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1819331420, now seen corresponding path program 1 times [2024-12-02 07:19:43,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:19:43,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769576471] [2024-12-02 07:19:43,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:19:43,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:19:43,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:19:44,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:19:44,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:19:44,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769576471] [2024-12-02 07:19:44,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769576471] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:19:44,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:19:44,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:19:44,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262610152] [2024-12-02 07:19:44,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:19:44,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:19:44,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:19:44,158 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:19:44,158 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:19:44,158 INFO L87 Difference]: Start difference. First operand 2378 states and 4357 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 07:19:44,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:19:44,720 INFO L93 Difference]: Finished difference Result 2890 states and 5165 transitions. [2024-12-02 07:19:44,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:19:44,720 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2024-12-02 07:19:44,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:19:44,734 INFO L225 Difference]: With dead ends: 2890 [2024-12-02 07:19:44,734 INFO L226 Difference]: Without dead ends: 2648 [2024-12-02 07:19:44,737 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 [2024-12-02 07:19:44,737 INFO L435 NwaCegarLoop]: 4268 mSDtfsCounter, 4695 mSDsluCounter, 8697 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4710 SdHoareTripleChecker+Valid, 12965 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:19:44,738 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4710 Valid, 12965 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 07:19:44,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2648 states. [2024-12-02 07:19:44,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2648 to 2627. [2024-12-02 07:19:44,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2627 states, 2573 states have (on average 1.8157792460163233) internal successors, (4672), 2577 states have internal predecessors, (4672), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (38), 37 states have call predecessors, (38), 37 states have call successors, (38) [2024-12-02 07:19:44,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2627 states to 2627 states and 4749 transitions. [2024-12-02 07:19:44,825 INFO L78 Accepts]: Start accepts. Automaton has 2627 states and 4749 transitions. Word has length 122 [2024-12-02 07:19:44,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:19:44,826 INFO L471 AbstractCegarLoop]: Abstraction has 2627 states and 4749 transitions. [2024-12-02 07:19:44,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 07:19:44,826 INFO L276 IsEmpty]: Start isEmpty. Operand 2627 states and 4749 transitions. [2024-12-02 07:19:44,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-12-02 07:19:44,828 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:19:44,828 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:19:44,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 07:19:44,828 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:19:44,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:19:44,829 INFO L85 PathProgramCache]: Analyzing trace with hash 964642136, now seen corresponding path program 1 times [2024-12-02 07:19:44,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:19:44,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829329369] [2024-12-02 07:19:44,829 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:19:44,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:19:44,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:19:45,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:19:45,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:19:45,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829329369] [2024-12-02 07:19:45,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829329369] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:19:45,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:19:45,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:19:45,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146109173] [2024-12-02 07:19:45,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:19:45,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:19:45,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:19:45,035 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:19:45,035 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:19:45,035 INFO L87 Difference]: Start difference. First operand 2627 states and 4749 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 07:19:45,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:19:45,763 INFO L93 Difference]: Finished difference Result 3435 states and 6034 transitions. [2024-12-02 07:19:45,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:19:45,764 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2024-12-02 07:19:45,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:19:45,778 INFO L225 Difference]: With dead ends: 3435 [2024-12-02 07:19:45,778 INFO L226 Difference]: Without dead ends: 2944 [2024-12-02 07:19:45,780 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:19:45,781 INFO L435 NwaCegarLoop]: 4479 mSDtfsCounter, 4694 mSDsluCounter, 13445 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4709 SdHoareTripleChecker+Valid, 17924 SdHoareTripleChecker+Invalid, 796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 07:19:45,781 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4709 Valid, 17924 Invalid, 796 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [29 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 07:19:45,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2944 states. [2024-12-02 07:19:45,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2944 to 2859. [2024-12-02 07:19:45,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2859 states, 2782 states have (on average 1.7961897915168943) internal successors, (4997), 2787 states have internal predecessors, (4997), 55 states have call successors, (55), 19 states have call predecessors, (55), 20 states have return successors, (57), 54 states have call predecessors, (57), 53 states have call successors, (57) [2024-12-02 07:19:45,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2859 states to 2859 states and 5109 transitions. [2024-12-02 07:19:45,875 INFO L78 Accepts]: Start accepts. Automaton has 2859 states and 5109 transitions. Word has length 122 [2024-12-02 07:19:45,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:19:45,875 INFO L471 AbstractCegarLoop]: Abstraction has 2859 states and 5109 transitions. [2024-12-02 07:19:45,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 07:19:45,876 INFO L276 IsEmpty]: Start isEmpty. Operand 2859 states and 5109 transitions. [2024-12-02 07:19:45,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-12-02 07:19:45,877 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:19:45,877 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:19:45,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 07:19:45,878 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:19:45,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:19:45,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1068751910, now seen corresponding path program 1 times [2024-12-02 07:19:45,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:19:45,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573393199] [2024-12-02 07:19:45,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:19:45,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:19:45,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:19:46,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:19:46,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:19:46,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573393199] [2024-12-02 07:19:46,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573393199] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:19:46,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:19:46,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:19:46,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777271256] [2024-12-02 07:19:46,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:19:46,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:19:46,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:19:46,099 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:19:46,099 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:19:46,100 INFO L87 Difference]: Start difference. First operand 2859 states and 5109 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 07:19:46,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:19:46,771 INFO L93 Difference]: Finished difference Result 4171 states and 7193 transitions. [2024-12-02 07:19:46,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:19:46,771 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2024-12-02 07:19:46,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:19:46,787 INFO L225 Difference]: With dead ends: 4171 [2024-12-02 07:19:46,787 INFO L226 Difference]: Without dead ends: 3448 [2024-12-02 07:19:46,790 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:19:46,791 INFO L435 NwaCegarLoop]: 4475 mSDtfsCounter, 4689 mSDsluCounter, 13433 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4704 SdHoareTripleChecker+Valid, 17908 SdHoareTripleChecker+Invalid, 796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 07:19:46,791 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4704 Valid, 17908 Invalid, 796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 07:19:46,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3448 states. [2024-12-02 07:19:46,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3448 to 3352. [2024-12-02 07:19:46,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3352 states, 3227 states have (on average 1.7657266811279826) internal successors, (5698), 3236 states have internal predecessors, (5698), 87 states have call successors, (87), 31 states have call predecessors, (87), 36 states have return successors, (101), 88 states have call predecessors, (101), 85 states have call successors, (101) [2024-12-02 07:19:46,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3352 states to 3352 states and 5886 transitions. [2024-12-02 07:19:46,904 INFO L78 Accepts]: Start accepts. Automaton has 3352 states and 5886 transitions. Word has length 122 [2024-12-02 07:19:46,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:19:46,905 INFO L471 AbstractCegarLoop]: Abstraction has 3352 states and 5886 transitions. [2024-12-02 07:19:46,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 07:19:46,905 INFO L276 IsEmpty]: Start isEmpty. Operand 3352 states and 5886 transitions. [2024-12-02 07:19:46,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-12-02 07:19:46,907 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:19:46,907 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:19:46,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 07:19:46,907 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:19:46,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:19:46,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1359506712, now seen corresponding path program 1 times [2024-12-02 07:19:46,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:19:46,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472313199] [2024-12-02 07:19:46,908 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:19:46,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:19:46,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:19:47,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:19:47,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:19:47,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472313199] [2024-12-02 07:19:47,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472313199] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:19:47,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:19:47,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:19:47,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985826144] [2024-12-02 07:19:47,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:19:47,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:19:47,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:19:47,071 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:19:47,071 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:19:47,071 INFO L87 Difference]: Start difference. First operand 3352 states and 5886 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 07:19:47,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:19:47,771 INFO L93 Difference]: Finished difference Result 5754 states and 9736 transitions. [2024-12-02 07:19:47,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:19:47,772 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2024-12-02 07:19:47,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:19:47,792 INFO L225 Difference]: With dead ends: 5754 [2024-12-02 07:19:47,793 INFO L226 Difference]: Without dead ends: 4538 [2024-12-02 07:19:47,797 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:19:47,798 INFO L435 NwaCegarLoop]: 4472 mSDtfsCounter, 4684 mSDsluCounter, 13424 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4699 SdHoareTripleChecker+Valid, 17896 SdHoareTripleChecker+Invalid, 796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 07:19:47,798 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4699 Valid, 17896 Invalid, 796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 07:19:47,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4538 states. [2024-12-02 07:19:47,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4538 to 4419. [2024-12-02 07:19:47,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4419 states, 4192 states have (on average 1.7275763358778626) internal successors, (7242), 4215 states have internal predecessors, (7242), 151 states have call successors, (151), 55 states have call predecessors, (151), 74 states have return successors, (213), 156 states have call predecessors, (213), 149 states have call successors, (213) [2024-12-02 07:19:48,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4419 states to 4419 states and 7606 transitions. [2024-12-02 07:19:48,011 INFO L78 Accepts]: Start accepts. Automaton has 4419 states and 7606 transitions. Word has length 122 [2024-12-02 07:19:48,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:19:48,011 INFO L471 AbstractCegarLoop]: Abstraction has 4419 states and 7606 transitions. [2024-12-02 07:19:48,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 07:19:48,012 INFO L276 IsEmpty]: Start isEmpty. Operand 4419 states and 7606 transitions. [2024-12-02 07:19:48,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-12-02 07:19:48,015 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:19:48,015 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:19:48,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 07:19:48,015 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:19:48,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:19:48,016 INFO L85 PathProgramCache]: Analyzing trace with hash 52364314, now seen corresponding path program 1 times [2024-12-02 07:19:48,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:19:48,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709669619] [2024-12-02 07:19:48,016 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:19:48,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:19:48,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:19:48,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:19:48,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:19:48,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709669619] [2024-12-02 07:19:48,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709669619] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:19:48,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:19:48,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:19:48,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387632473] [2024-12-02 07:19:48,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:19:48,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:19:48,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:19:48,218 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:19:48,218 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:19:48,218 INFO L87 Difference]: Start difference. First operand 4419 states and 7606 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 07:19:49,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:19:49,037 INFO L93 Difference]: Finished difference Result 9225 states and 15474 transitions. [2024-12-02 07:19:49,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:19:49,038 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2024-12-02 07:19:49,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:19:49,072 INFO L225 Difference]: With dead ends: 9225 [2024-12-02 07:19:49,073 INFO L226 Difference]: Without dead ends: 6942 [2024-12-02 07:19:49,083 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:19:49,083 INFO L435 NwaCegarLoop]: 4469 mSDtfsCounter, 4679 mSDsluCounter, 13415 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4694 SdHoareTripleChecker+Valid, 17884 SdHoareTripleChecker+Invalid, 796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 07:19:49,084 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4694 Valid, 17884 Invalid, 796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 07:19:49,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6942 states. [2024-12-02 07:19:49,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6942 to 6778. [2024-12-02 07:19:49,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6778 states, 6329 states have (on average 1.6941064939168906) internal successors, (10722), 6398 states have internal predecessors, (10722), 279 states have call successors, (279), 103 states have call predecessors, (279), 168 states have return successors, (533), 292 states have call predecessors, (533), 277 states have call successors, (533) [2024-12-02 07:19:49,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6778 states to 6778 states and 11534 transitions. [2024-12-02 07:19:49,378 INFO L78 Accepts]: Start accepts. Automaton has 6778 states and 11534 transitions. Word has length 122 [2024-12-02 07:19:49,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:19:49,378 INFO L471 AbstractCegarLoop]: Abstraction has 6778 states and 11534 transitions. [2024-12-02 07:19:49,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 07:19:49,378 INFO L276 IsEmpty]: Start isEmpty. Operand 6778 states and 11534 transitions. [2024-12-02 07:19:49,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-12-02 07:19:49,383 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:19:49,383 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:19:49,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 07:19:49,383 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:19:49,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:19:49,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1949861080, now seen corresponding path program 1 times [2024-12-02 07:19:49,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:19:49,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555385787] [2024-12-02 07:19:49,383 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:19:49,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:19:49,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:19:49,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:19:49,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:19:49,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555385787] [2024-12-02 07:19:49,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555385787] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:19:49,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:19:49,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:19:49,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608574493] [2024-12-02 07:19:49,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:19:49,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:19:49,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:19:49,530 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:19:49,530 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:19:49,530 INFO L87 Difference]: Start difference. First operand 6778 states and 11534 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 07:19:50,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:19:50,321 INFO L93 Difference]: Finished difference Result 17008 states and 28884 transitions. [2024-12-02 07:19:50,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:19:50,322 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2024-12-02 07:19:50,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:19:50,370 INFO L225 Difference]: With dead ends: 17008 [2024-12-02 07:19:50,370 INFO L226 Difference]: Without dead ends: 12366 [2024-12-02 07:19:50,385 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:19:50,386 INFO L435 NwaCegarLoop]: 4466 mSDtfsCounter, 4674 mSDsluCounter, 13406 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4689 SdHoareTripleChecker+Valid, 17872 SdHoareTripleChecker+Invalid, 796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 07:19:50,386 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4689 Valid, 17872 Invalid, 796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 07:19:50,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12366 states. [2024-12-02 07:19:50,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12366 to 12117. [2024-12-02 07:19:50,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12117 states, 11170 states have (on average 1.678961504028648) internal successors, (18754), 11385 states have internal predecessors, (18754), 535 states have call successors, (535), 199 states have call predecessors, (535), 410 states have return successors, (1557), 564 states have call predecessors, (1557), 533 states have call successors, (1557) [2024-12-02 07:19:50,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12117 states to 12117 states and 20846 transitions. [2024-12-02 07:19:50,848 INFO L78 Accepts]: Start accepts. Automaton has 12117 states and 20846 transitions. Word has length 122 [2024-12-02 07:19:50,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:19:50,848 INFO L471 AbstractCegarLoop]: Abstraction has 12117 states and 20846 transitions. [2024-12-02 07:19:50,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 07:19:50,849 INFO L276 IsEmpty]: Start isEmpty. Operand 12117 states and 20846 transitions. [2024-12-02 07:19:50,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-12-02 07:19:50,853 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:19:50,853 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:19:50,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 07:19:50,853 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:19:50,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:19:50,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1314065318, now seen corresponding path program 1 times [2024-12-02 07:19:50,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:19:50,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996656947] [2024-12-02 07:19:50,854 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:19:50,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:19:50,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:19:50,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:19:50,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:19:50,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996656947] [2024-12-02 07:19:50,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996656947] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:19:50,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:19:50,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:19:50,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60204293] [2024-12-02 07:19:50,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:19:50,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:19:50,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:19:50,984 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:19:50,984 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:19:50,984 INFO L87 Difference]: Start difference. First operand 12117 states and 20846 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 07:19:51,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:19:51,582 INFO L93 Difference]: Finished difference Result 24548 states and 42967 transitions. [2024-12-02 07:19:51,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 07:19:51,582 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2024-12-02 07:19:51,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:19:51,622 INFO L225 Difference]: With dead ends: 24548 [2024-12-02 07:19:51,622 INFO L226 Difference]: Without dead ends: 14567 [2024-12-02 07:19:51,642 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 [2024-12-02 07:19:51,642 INFO L435 NwaCegarLoop]: 4245 mSDtfsCounter, 4480 mSDsluCounter, 8381 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4495 SdHoareTripleChecker+Valid, 12626 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:19:51,642 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4495 Valid, 12626 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:19:51,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14567 states. [2024-12-02 07:19:52,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14567 to 12117. [2024-12-02 07:19:52,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12117 states, 11170 states have (on average 1.6760071620411818) internal successors, (18721), 11385 states have internal predecessors, (18721), 535 states have call successors, (535), 199 states have call predecessors, (535), 410 states have return successors, (1557), 564 states have call predecessors, (1557), 533 states have call successors, (1557) [2024-12-02 07:19:52,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12117 states to 12117 states and 20813 transitions. [2024-12-02 07:19:52,068 INFO L78 Accepts]: Start accepts. Automaton has 12117 states and 20813 transitions. Word has length 122 [2024-12-02 07:19:52,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:19:52,069 INFO L471 AbstractCegarLoop]: Abstraction has 12117 states and 20813 transitions. [2024-12-02 07:19:52,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 07:19:52,069 INFO L276 IsEmpty]: Start isEmpty. Operand 12117 states and 20813 transitions. [2024-12-02 07:19:52,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-12-02 07:19:52,073 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:19:52,073 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:19:52,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 07:19:52,074 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:19:52,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:19:52,074 INFO L85 PathProgramCache]: Analyzing trace with hash 287005788, now seen corresponding path program 1 times [2024-12-02 07:19:52,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:19:52,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713719612] [2024-12-02 07:19:52,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:19:52,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:19:52,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:19:52,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:19:52,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:19:52,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713719612] [2024-12-02 07:19:52,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713719612] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:19:52,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:19:52,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:19:52,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655926926] [2024-12-02 07:19:52,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:19:52,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:19:52,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:19:52,180 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:19:52,180 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:19:52,180 INFO L87 Difference]: Start difference. First operand 12117 states and 20813 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 07:19:53,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:19:53,390 INFO L93 Difference]: Finished difference Result 36055 states and 62984 transitions. [2024-12-02 07:19:53,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:19:53,391 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2024-12-02 07:19:53,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:19:53,477 INFO L225 Difference]: With dead ends: 36055 [2024-12-02 07:19:53,477 INFO L226 Difference]: Without dead ends: 26074 [2024-12-02 07:19:53,502 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:19:53,503 INFO L435 NwaCegarLoop]: 4452 mSDtfsCounter, 4882 mSDsluCounter, 13362 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4905 SdHoareTripleChecker+Valid, 17814 SdHoareTripleChecker+Invalid, 802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 07:19:53,503 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4905 Valid, 17814 Invalid, 802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 07:19:53,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26074 states. [2024-12-02 07:19:54,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26074 to 23914. [2024-12-02 07:19:54,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23914 states, 21841 states have (on average 1.676525800100728) internal successors, (36617), 22510 states have internal predecessors, (36617), 1015 states have call successors, (1015), 391 states have call predecessors, (1015), 1056 states have return successors, (5109), 1076 states have call predecessors, (5109), 1013 states have call successors, (5109) [2024-12-02 07:19:54,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23914 states to 23914 states and 42741 transitions. [2024-12-02 07:19:54,524 INFO L78 Accepts]: Start accepts. Automaton has 23914 states and 42741 transitions. Word has length 122 [2024-12-02 07:19:54,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:19:54,524 INFO L471 AbstractCegarLoop]: Abstraction has 23914 states and 42741 transitions. [2024-12-02 07:19:54,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 07:19:54,524 INFO L276 IsEmpty]: Start isEmpty. Operand 23914 states and 42741 transitions. [2024-12-02 07:19:54,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-12-02 07:19:54,535 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:19:54,535 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:19:54,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 07:19:54,535 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:19:54,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:19:54,536 INFO L85 PathProgramCache]: Analyzing trace with hash -769725414, now seen corresponding path program 1 times [2024-12-02 07:19:54,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:19:54,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922273952] [2024-12-02 07:19:54,536 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:19:54,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:19:54,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:19:54,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:19:54,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:19:54,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922273952] [2024-12-02 07:19:54,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922273952] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:19:54,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:19:54,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:19:54,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036716843] [2024-12-02 07:19:54,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:19:54,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:19:54,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:19:54,668 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:19:54,668 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:19:54,668 INFO L87 Difference]: Start difference. First operand 23914 states and 42741 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 07:19:56,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:19:56,487 INFO L93 Difference]: Finished difference Result 76528 states and 143042 transitions. [2024-12-02 07:19:56,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:19:56,488 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2024-12-02 07:19:56,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:19:56,778 INFO L225 Difference]: With dead ends: 76528 [2024-12-02 07:19:56,779 INFO L226 Difference]: Without dead ends: 54750 [2024-12-02 07:19:56,836 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:19:56,837 INFO L435 NwaCegarLoop]: 4448 mSDtfsCounter, 4715 mSDsluCounter, 13350 mSDsCounter, 0 mSdLazyCounter, 940 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4729 SdHoareTripleChecker+Valid, 17798 SdHoareTripleChecker+Invalid, 971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 940 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 07:19:56,837 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4729 Valid, 17798 Invalid, 971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 940 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 07:19:56,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54750 states. [2024-12-02 07:19:58,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54750 to 50481. [2024-12-02 07:19:58,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50481 states, 45702 states have (on average 1.6860750076583082) internal successors, (77057), 47765 states have internal predecessors, (77057), 1943 states have call successors, (1943), 775 states have call predecessors, (1943), 2834 states have return successors, (18325), 2068 states have call predecessors, (18325), 1941 states have call successors, (18325) [2024-12-02 07:19:59,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50481 states to 50481 states and 97325 transitions. [2024-12-02 07:19:59,087 INFO L78 Accepts]: Start accepts. Automaton has 50481 states and 97325 transitions. Word has length 122 [2024-12-02 07:19:59,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:19:59,087 INFO L471 AbstractCegarLoop]: Abstraction has 50481 states and 97325 transitions. [2024-12-02 07:19:59,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 07:19:59,087 INFO L276 IsEmpty]: Start isEmpty. Operand 50481 states and 97325 transitions. [2024-12-02 07:19:59,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-12-02 07:19:59,098 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:19:59,098 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:19:59,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 07:19:59,098 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:19:59,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:19:59,099 INFO L85 PathProgramCache]: Analyzing trace with hash 581659804, now seen corresponding path program 1 times [2024-12-02 07:19:59,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:19:59,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914151259] [2024-12-02 07:19:59,099 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:19:59,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:19:59,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:19:59,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:19:59,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:19:59,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914151259] [2024-12-02 07:19:59,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914151259] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:19:59,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:19:59,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:19:59,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962092959] [2024-12-02 07:19:59,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:19:59,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:19:59,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:19:59,184 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:19:59,184 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:19:59,184 INFO L87 Difference]: Start difference. First operand 50481 states and 97325 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 07:20:03,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:20:03,583 INFO L93 Difference]: Finished difference Result 168263 states and 349944 transitions. [2024-12-02 07:20:03,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:20:03,584 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2024-12-02 07:20:03,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:20:04,064 INFO L225 Difference]: With dead ends: 168263 [2024-12-02 07:20:04,064 INFO L226 Difference]: Without dead ends: 119918 [2024-12-02 07:20:04,198 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:20:04,198 INFO L435 NwaCegarLoop]: 4446 mSDtfsCounter, 4812 mSDsluCounter, 13344 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4835 SdHoareTripleChecker+Valid, 17790 SdHoareTripleChecker+Invalid, 802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 07:20:04,199 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4835 Valid, 17790 Invalid, 802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 07:20:04,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119918 states. [2024-12-02 07:20:10,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119918 to 113476. [2024-12-02 07:20:10,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113476 states, 101891 states have (on average 1.701946197407033) internal successors, (173413), 108200 states have internal predecessors, (173413), 3735 states have call successors, (3735), 1543 states have call predecessors, (3735), 7848 states have return successors, (69269), 3988 states have call predecessors, (69269), 3733 states have call successors, (69269) [2024-12-02 07:20:11,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113476 states to 113476 states and 246417 transitions. [2024-12-02 07:20:11,661 INFO L78 Accepts]: Start accepts. Automaton has 113476 states and 246417 transitions. Word has length 122 [2024-12-02 07:20:11,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:20:11,662 INFO L471 AbstractCegarLoop]: Abstraction has 113476 states and 246417 transitions. [2024-12-02 07:20:11,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 07:20:11,662 INFO L276 IsEmpty]: Start isEmpty. Operand 113476 states and 246417 transitions. [2024-12-02 07:20:11,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-12-02 07:20:11,692 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:20:11,692 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:20:11,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 07:20:11,692 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:20:11,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:20:11,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1037315110, now seen corresponding path program 1 times [2024-12-02 07:20:11,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:20:11,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153016728] [2024-12-02 07:20:11,693 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:20:11,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:20:11,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:20:11,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:20:11,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:20:11,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153016728] [2024-12-02 07:20:11,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153016728] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:20:11,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:20:11,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:20:11,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544489996] [2024-12-02 07:20:11,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:20:11,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:20:11,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:20:11,806 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:20:11,806 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:20:11,806 INFO L87 Difference]: Start difference. First operand 113476 states and 246417 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 07:20:22,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:20:22,859 INFO L93 Difference]: Finished difference Result 385270 states and 936782 transitions. [2024-12-02 07:20:22,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:20:22,859 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2024-12-02 07:20:22,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:20:24,252 INFO L225 Difference]: With dead ends: 385270 [2024-12-02 07:20:24,252 INFO L226 Difference]: Without dead ends: 273930 [2024-12-02 07:20:24,555 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:20:24,555 INFO L435 NwaCegarLoop]: 4443 mSDtfsCounter, 4777 mSDsluCounter, 13335 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4800 SdHoareTripleChecker+Valid, 17778 SdHoareTripleChecker+Invalid, 802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 07:20:24,555 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4800 Valid, 17778 Invalid, 802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 07:20:24,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273930 states. [2024-12-02 07:20:42,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273930 to 263139. [2024-12-02 07:20:42,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263139 states, 233696 states have (on average 1.7147619129125018) internal successors, (400733), 252871 states have internal predecessors, (400733), 7191 states have call successors, (7191), 3079 states have call predecessors, (7191), 22250 states have return successors, (269333), 7700 states have call predecessors, (269333), 7189 states have call successors, (269333) [2024-12-02 07:20:45,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263139 states to 263139 states and 677257 transitions. [2024-12-02 07:20:45,068 INFO L78 Accepts]: Start accepts. Automaton has 263139 states and 677257 transitions. Word has length 122 [2024-12-02 07:20:45,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:20:45,068 INFO L471 AbstractCegarLoop]: Abstraction has 263139 states and 677257 transitions. [2024-12-02 07:20:45,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 07:20:45,068 INFO L276 IsEmpty]: Start isEmpty. Operand 263139 states and 677257 transitions. [2024-12-02 07:20:45,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-12-02 07:20:45,111 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:20:45,111 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:20:45,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 07:20:45,112 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:20:45,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:20:45,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1920824100, now seen corresponding path program 1 times [2024-12-02 07:20:45,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:20:45,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399075301] [2024-12-02 07:20:45,112 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:20:45,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:20:45,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:20:45,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:20:45,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:20:45,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399075301] [2024-12-02 07:20:45,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399075301] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:20:45,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:20:45,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:20:45,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023092098] [2024-12-02 07:20:45,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:20:45,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:20:45,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:20:45,221 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:20:45,221 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:20:45,221 INFO L87 Difference]: Start difference. First operand 263139 states and 677257 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 07:21:12,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:21:12,889 INFO L93 Difference]: Finished difference Result 899193 states and 2710588 transitions. [2024-12-02 07:21:12,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:21:12,890 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2024-12-02 07:21:12,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:21:17,744 INFO L225 Difference]: With dead ends: 899193 [2024-12-02 07:21:17,744 INFO L226 Difference]: Without dead ends: 638190 [2024-12-02 07:21:19,044 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:21:19,044 INFO L435 NwaCegarLoop]: 4440 mSDtfsCounter, 4671 mSDsluCounter, 13326 mSDsCounter, 0 mSdLazyCounter, 880 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4685 SdHoareTripleChecker+Valid, 17766 SdHoareTripleChecker+Invalid, 911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 880 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 07:21:19,045 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4685 Valid, 17766 Invalid, 911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 880 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 07:21:19,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638190 states.