./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem03_label12.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_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/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_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem03_label12.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/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_6673e4e7-0062-46e4-a895-12bdecf785ae/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 8d17ef4c86a3b9aaad0f3756316af6b356203f50f5a16d9fd49cf45964daad71 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 06:06:31,425 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 06:06:31,480 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 06:06:31,485 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 06:06:31,485 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 06:06:31,505 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 06:06:31,505 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 06:06:31,505 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 06:06:31,506 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 06:06:31,506 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 06:06:31,506 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 06:06:31,506 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 06:06:31,506 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 06:06:31,506 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 06:06:31,507 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 06:06:31,507 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 06:06:31,507 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 06:06:31,507 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 06:06:31,507 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 06:06:31,507 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 06:06:31,507 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 06:06:31,507 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 06:06:31,507 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 06:06:31,507 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 06:06:31,508 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 06:06:31,508 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 06:06:31,508 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 06:06:31,508 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 06:06:31,508 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 06:06:31,508 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:06:31,508 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:06:31,508 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:06:31,508 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:06:31,508 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 06:06:31,509 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:06:31,509 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:06:31,509 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:06:31,509 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:06:31,509 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 06:06:31,509 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 06:06:31,509 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 06:06:31,509 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 06:06:31,509 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 06:06:31,509 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 06:06:31,510 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 06:06:31,510 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 06:06:31,510 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 06:06:31,510 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 06:06:31,510 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_6673e4e7-0062-46e4-a895-12bdecf785ae/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 -> 8d17ef4c86a3b9aaad0f3756316af6b356203f50f5a16d9fd49cf45964daad71 [2024-12-02 06:06:31,705 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 06:06:31,712 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 06:06:31,714 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 06:06:31,715 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 06:06:31,715 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 06:06:31,716 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/eca-rers2012/Problem03_label12.c [2024-12-02 06:06:34,318 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/data/2ca061562/2d388b12053946faa462c31c62b957e9/FLAG670762964 [2024-12-02 06:06:34,656 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 06:06:34,656 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/sv-benchmarks/c/eca-rers2012/Problem03_label12.c [2024-12-02 06:06:34,668 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/data/2ca061562/2d388b12053946faa462c31c62b957e9/FLAG670762964 [2024-12-02 06:06:34,891 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/data/2ca061562/2d388b12053946faa462c31c62b957e9 [2024-12-02 06:06:34,893 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 06:06:34,894 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 06:06:34,895 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 06:06:34,895 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 06:06:34,898 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 06:06:34,899 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:06:34" (1/1) ... [2024-12-02 06:06:34,899 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cc723ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:34, skipping insertion in model container [2024-12-02 06:06:34,899 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:06:34" (1/1) ... [2024-12-02 06:06:34,938 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 06:06:35,323 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_6673e4e7-0062-46e4-a895-12bdecf785ae/sv-benchmarks/c/eca-rers2012/Problem03_label12.c[56222,56235] [2024-12-02 06:06:35,355 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:06:35,364 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 06:06:35,548 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_6673e4e7-0062-46e4-a895-12bdecf785ae/sv-benchmarks/c/eca-rers2012/Problem03_label12.c[56222,56235] [2024-12-02 06:06:35,561 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:06:35,577 INFO L204 MainTranslator]: Completed translation [2024-12-02 06:06:35,578 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:35 WrapperNode [2024-12-02 06:06:35,578 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 06:06:35,579 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 06:06:35,579 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 06:06:35,579 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 06:06:35,585 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:35" (1/1) ... [2024-12-02 06:06:35,606 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:35" (1/1) ... [2024-12-02 06:06:35,668 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1771 [2024-12-02 06:06:35,669 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 06:06:35,669 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 06:06:35,669 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 06:06:35,669 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 06:06:35,678 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:35" (1/1) ... [2024-12-02 06:06:35,678 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:35" (1/1) ... [2024-12-02 06:06:35,688 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:35" (1/1) ... [2024-12-02 06:06:35,716 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 06:06:35,716 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:35" (1/1) ... [2024-12-02 06:06:35,716 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:35" (1/1) ... [2024-12-02 06:06:35,747 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:35" (1/1) ... [2024-12-02 06:06:35,751 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:35" (1/1) ... [2024-12-02 06:06:35,758 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:35" (1/1) ... [2024-12-02 06:06:35,767 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:35" (1/1) ... [2024-12-02 06:06:35,771 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:35" (1/1) ... [2024-12-02 06:06:35,783 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 06:06:35,784 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 06:06:35,784 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 06:06:35,784 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 06:06:35,784 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:35" (1/1) ... [2024-12-02 06:06:35,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:06:35,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:06:35,811 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 06:06:35,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 06:06:35,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 06:06:35,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 06:06:35,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 06:06:35,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 06:06:35,913 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 06:06:35,915 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 06:06:37,721 INFO L? ?]: Removed 147 outVars from TransFormulas that were not future-live. [2024-12-02 06:06:37,721 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 06:06:37,738 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 06:06:37,738 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 06:06:37,739 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:06:37 BoogieIcfgContainer [2024-12-02 06:06:37,739 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 06:06:37,741 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 06:06:37,742 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 06:06:37,746 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 06:06:37,747 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:06:34" (1/3) ... [2024-12-02 06:06:37,747 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51cbf3d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:06:37, skipping insertion in model container [2024-12-02 06:06:37,747 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:35" (2/3) ... [2024-12-02 06:06:37,748 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51cbf3d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:06:37, skipping insertion in model container [2024-12-02 06:06:37,748 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:06:37" (3/3) ... [2024-12-02 06:06:37,749 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem03_label12.c [2024-12-02 06:06:37,764 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 06:06:37,767 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem03_label12.c that has 1 procedures, 302 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 06:06:37,829 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 06:06:37,841 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;@41585284, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 06:06:37,841 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 06:06:37,845 INFO L276 IsEmpty]: Start isEmpty. Operand has 302 states, 300 states have (on average 1.73) internal successors, (519), 301 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:06:37,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-12-02 06:06:37,857 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:06:37,857 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:37,858 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:06:37,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:06:37,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1237142429, now seen corresponding path program 1 times [2024-12-02 06:06:37,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:06:37,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475418914] [2024-12-02 06:06:37,871 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:06:37,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:06:38,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:06:38,664 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 06:06:38,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:06:38,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475418914] [2024-12-02 06:06:38,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475418914] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:06:38,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:06:38,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 06:06:38,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422881506] [2024-12-02 06:06:38,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:06:38,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:06:38,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:06:38,686 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:06:38,686 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:06:38,689 INFO L87 Difference]: Start difference. First operand has 302 states, 300 states have (on average 1.73) internal successors, (519), 301 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 2 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:06:39,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:06:39,696 INFO L93 Difference]: Finished difference Result 855 states and 1496 transitions. [2024-12-02 06:06:39,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:06:39,698 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 2 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 163 [2024-12-02 06:06:39,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:06:39,707 INFO L225 Difference]: With dead ends: 855 [2024-12-02 06:06:39,707 INFO L226 Difference]: Without dead ends: 460 [2024-12-02 06:06:39,710 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 06:06:39,713 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 133 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 06:06:39,714 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 176 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 06:06:39,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2024-12-02 06:06:39,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 459. [2024-12-02 06:06:39,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 458 states have (on average 1.5502183406113537) internal successors, (710), 458 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:06:39,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 710 transitions. [2024-12-02 06:06:39,756 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 710 transitions. Word has length 163 [2024-12-02 06:06:39,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:06:39,757 INFO L471 AbstractCegarLoop]: Abstraction has 459 states and 710 transitions. [2024-12-02 06:06:39,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 2 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:06:39,757 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 710 transitions. [2024-12-02 06:06:39,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-12-02 06:06:39,760 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:06:39,761 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:39,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 06:06:39,761 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:06:39,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:06:39,762 INFO L85 PathProgramCache]: Analyzing trace with hash 765720979, now seen corresponding path program 1 times [2024-12-02 06:06:39,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:06:39,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308225022] [2024-12-02 06:06:39,762 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:06:39,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:06:39,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:06:40,063 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:06:40,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:06:40,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308225022] [2024-12-02 06:06:40,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308225022] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:06:40,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:06:40,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 06:06:40,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471031353] [2024-12-02 06:06:40,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:06:40,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:06:40,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:06:40,066 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:06:40,066 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:06:40,067 INFO L87 Difference]: Start difference. First operand 459 states and 710 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 2 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:06:40,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:06:40,859 INFO L93 Difference]: Finished difference Result 1342 states and 2082 transitions. [2024-12-02 06:06:40,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:06:40,859 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 2 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 168 [2024-12-02 06:06:40,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:06:40,862 INFO L225 Difference]: With dead ends: 1342 [2024-12-02 06:06:40,862 INFO L226 Difference]: Without dead ends: 885 [2024-12-02 06:06:40,863 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 06:06:40,863 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 251 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 06:06:40,864 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 181 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 06:06:40,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 885 states. [2024-12-02 06:06:40,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 885 to 880. [2024-12-02 06:06:40,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 880 states, 879 states have (on average 1.4687144482366326) internal successors, (1291), 879 states have internal predecessors, (1291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:06:40,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1291 transitions. [2024-12-02 06:06:40,893 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1291 transitions. Word has length 168 [2024-12-02 06:06:40,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:06:40,894 INFO L471 AbstractCegarLoop]: Abstraction has 880 states and 1291 transitions. [2024-12-02 06:06:40,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 2 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:06:40,894 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1291 transitions. [2024-12-02 06:06:40,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-12-02 06:06:40,897 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:06:40,897 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:40,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 06:06:40,897 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:06:40,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:06:40,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1994637924, now seen corresponding path program 1 times [2024-12-02 06:06:40,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:06:40,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703189638] [2024-12-02 06:06:40,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:06:40,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:06:40,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:06:41,109 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:06:41,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:06:41,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703189638] [2024-12-02 06:06:41,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703189638] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:06:41,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:06:41,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 06:06:41,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781758015] [2024-12-02 06:06:41,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:06:41,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:06:41,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:06:41,110 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:06:41,111 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:06:41,111 INFO L87 Difference]: Start difference. First operand 880 states and 1291 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 2 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:06:41,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:06:41,923 INFO L93 Difference]: Finished difference Result 2594 states and 3822 transitions. [2024-12-02 06:06:41,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:06:41,924 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 2 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 171 [2024-12-02 06:06:41,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:06:41,929 INFO L225 Difference]: With dead ends: 2594 [2024-12-02 06:06:41,929 INFO L226 Difference]: Without dead ends: 1716 [2024-12-02 06:06:41,930 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 06:06:41,931 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 249 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 06:06:41,931 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 90 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 06:06:41,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1716 states. [2024-12-02 06:06:41,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1716 to 1696. [2024-12-02 06:06:41,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1696 states, 1695 states have (on average 1.4395280235988202) internal successors, (2440), 1695 states have internal predecessors, (2440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:06:41,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1696 states to 1696 states and 2440 transitions. [2024-12-02 06:06:41,974 INFO L78 Accepts]: Start accepts. Automaton has 1696 states and 2440 transitions. Word has length 171 [2024-12-02 06:06:41,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:06:41,974 INFO L471 AbstractCegarLoop]: Abstraction has 1696 states and 2440 transitions. [2024-12-02 06:06:41,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 2 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:06:41,974 INFO L276 IsEmpty]: Start isEmpty. Operand 1696 states and 2440 transitions. [2024-12-02 06:06:41,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-12-02 06:06:41,977 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:06:41,977 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:41,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 06:06:41,977 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:06:41,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:06:41,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1309995303, now seen corresponding path program 1 times [2024-12-02 06:06:41,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:06:41,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474164903] [2024-12-02 06:06:41,978 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:06:41,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:06:42,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:06:42,163 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 06:06:42,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:06:42,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474164903] [2024-12-02 06:06:42,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474164903] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:06:42,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:06:42,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:06:42,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309349733] [2024-12-02 06:06:42,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:06:42,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:06:42,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:06:42,165 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:06:42,165 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:06:42,165 INFO L87 Difference]: Start difference. First operand 1696 states and 2440 transitions. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:06:43,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:06:43,008 INFO L93 Difference]: Finished difference Result 5027 states and 7244 transitions. [2024-12-02 06:06:43,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:06:43,009 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 178 [2024-12-02 06:06:43,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:06:43,018 INFO L225 Difference]: With dead ends: 5027 [2024-12-02 06:06:43,018 INFO L226 Difference]: Without dead ends: 3333 [2024-12-02 06:06:43,020 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 06:06:43,021 INFO L435 NwaCegarLoop]: 357 mSDtfsCounter, 96 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 06:06:43,021 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 387 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 06:06:43,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3333 states. [2024-12-02 06:06:43,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3333 to 3325. [2024-12-02 06:06:43,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3325 states, 3324 states have (on average 1.3775571600481349) internal successors, (4579), 3324 states have internal predecessors, (4579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:06:43,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3325 states to 3325 states and 4579 transitions. [2024-12-02 06:06:43,072 INFO L78 Accepts]: Start accepts. Automaton has 3325 states and 4579 transitions. Word has length 178 [2024-12-02 06:06:43,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:06:43,073 INFO L471 AbstractCegarLoop]: Abstraction has 3325 states and 4579 transitions. [2024-12-02 06:06:43,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:06:43,073 INFO L276 IsEmpty]: Start isEmpty. Operand 3325 states and 4579 transitions. [2024-12-02 06:06:43,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-12-02 06:06:43,076 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:06:43,077 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:43,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 06:06:43,077 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:06:43,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:06:43,077 INFO L85 PathProgramCache]: Analyzing trace with hash -281310709, now seen corresponding path program 1 times [2024-12-02 06:06:43,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:06:43,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624116537] [2024-12-02 06:06:43,078 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:06:43,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:06:43,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:06:43,293 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 06:06:43,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:06:43,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624116537] [2024-12-02 06:06:43,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624116537] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:06:43,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:06:43,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:06:43,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617225947] [2024-12-02 06:06:43,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:06:43,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:06:43,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:06:43,294 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:06:43,294 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:06:43,295 INFO L87 Difference]: Start difference. First operand 3325 states and 4579 transitions. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:06:44,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:06:44,092 INFO L93 Difference]: Finished difference Result 8286 states and 11311 transitions. [2024-12-02 06:06:44,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:06:44,093 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 184 [2024-12-02 06:06:44,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:06:44,108 INFO L225 Difference]: With dead ends: 8286 [2024-12-02 06:06:44,108 INFO L226 Difference]: Without dead ends: 4963 [2024-12-02 06:06:44,111 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 06:06:44,112 INFO L435 NwaCegarLoop]: 370 mSDtfsCounter, 216 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 06:06:44,112 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 393 Invalid, 697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 06:06:44,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4963 states. [2024-12-02 06:06:44,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4963 to 4958. [2024-12-02 06:06:44,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4958 states, 4957 states have (on average 1.333266088359895) internal successors, (6609), 4957 states have internal predecessors, (6609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:06:44,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4958 states to 4958 states and 6609 transitions. [2024-12-02 06:06:44,231 INFO L78 Accepts]: Start accepts. Automaton has 4958 states and 6609 transitions. Word has length 184 [2024-12-02 06:06:44,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:06:44,232 INFO L471 AbstractCegarLoop]: Abstraction has 4958 states and 6609 transitions. [2024-12-02 06:06:44,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:06:44,232 INFO L276 IsEmpty]: Start isEmpty. Operand 4958 states and 6609 transitions. [2024-12-02 06:06:44,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-12-02 06:06:44,240 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:06:44,240 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:44,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 06:06:44,240 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:06:44,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:06:44,241 INFO L85 PathProgramCache]: Analyzing trace with hash -556225326, now seen corresponding path program 1 times [2024-12-02 06:06:44,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:06:44,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647430843] [2024-12-02 06:06:44,241 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:06:44,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:06:44,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:06:44,537 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-12-02 06:06:44,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:06:44,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647430843] [2024-12-02 06:06:44,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647430843] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:06:44,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:06:44,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 06:06:44,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134717284] [2024-12-02 06:06:44,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:06:44,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:06:44,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:06:44,538 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:06:44,538 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:06:44,538 INFO L87 Difference]: Start difference. First operand 4958 states and 6609 transitions. Second operand has 3 states, 3 states have (on average 64.0) internal successors, (192), 2 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:06:45,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:06:45,407 INFO L93 Difference]: Finished difference Result 12402 states and 16491 transitions. [2024-12-02 06:06:45,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:06:45,408 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 2 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 206 [2024-12-02 06:06:45,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:06:45,426 INFO L225 Difference]: With dead ends: 12402 [2024-12-02 06:06:45,426 INFO L226 Difference]: Without dead ends: 7446 [2024-12-02 06:06:45,431 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 06:06:45,431 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 222 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 06:06:45,432 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 129 Invalid, 771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 06:06:45,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7446 states. [2024-12-02 06:06:45,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7446 to 7441. [2024-12-02 06:06:45,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7441 states, 7440 states have (on average 1.3233870967741936) internal successors, (9846), 7440 states have internal predecessors, (9846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:06:45,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7441 states to 7441 states and 9846 transitions. [2024-12-02 06:06:45,556 INFO L78 Accepts]: Start accepts. Automaton has 7441 states and 9846 transitions. Word has length 206 [2024-12-02 06:06:45,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:06:45,556 INFO L471 AbstractCegarLoop]: Abstraction has 7441 states and 9846 transitions. [2024-12-02 06:06:45,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 2 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:06:45,557 INFO L276 IsEmpty]: Start isEmpty. Operand 7441 states and 9846 transitions. [2024-12-02 06:06:45,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-12-02 06:06:45,567 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:06:45,567 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:45,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 06:06:45,567 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:06:45,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:06:45,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1273445659, now seen corresponding path program 1 times [2024-12-02 06:06:45,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:06:45,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624114059] [2024-12-02 06:06:45,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:06:45,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:06:45,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:06:45,840 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:06:45,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:06:45,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624114059] [2024-12-02 06:06:45,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624114059] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:06:45,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:06:45,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 06:06:45,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681668713] [2024-12-02 06:06:45,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:06:45,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:06:45,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:06:45,842 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:06:45,842 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:06:45,842 INFO L87 Difference]: Start difference. First operand 7441 states and 9846 transitions. Second operand has 3 states, 3 states have (on average 69.0) internal successors, (207), 2 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:06:46,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:06:46,735 INFO L93 Difference]: Finished difference Result 21376 states and 28296 transitions. [2024-12-02 06:06:46,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:06:46,736 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 2 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 207 [2024-12-02 06:06:46,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:06:46,767 INFO L225 Difference]: With dead ends: 21376 [2024-12-02 06:06:46,767 INFO L226 Difference]: Without dead ends: 13937 [2024-12-02 06:06:46,773 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 06:06:46,774 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 176 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 06:06:46,774 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 201 Invalid, 697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 06:06:46,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13937 states. [2024-12-02 06:06:46,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13937 to 13937. [2024-12-02 06:06:46,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13937 states, 13936 states have (on average 1.2063002296211252) internal successors, (16811), 13936 states have internal predecessors, (16811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:06:46,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13937 states to 13937 states and 16811 transitions. [2024-12-02 06:06:46,926 INFO L78 Accepts]: Start accepts. Automaton has 13937 states and 16811 transitions. Word has length 207 [2024-12-02 06:06:46,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:06:46,926 INFO L471 AbstractCegarLoop]: Abstraction has 13937 states and 16811 transitions. [2024-12-02 06:06:46,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 2 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:06:46,926 INFO L276 IsEmpty]: Start isEmpty. Operand 13937 states and 16811 transitions. [2024-12-02 06:06:46,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2024-12-02 06:06:46,936 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:06:46,936 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:46,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 06:06:46,936 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:06:46,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:06:46,936 INFO L85 PathProgramCache]: Analyzing trace with hash -595778739, now seen corresponding path program 1 times [2024-12-02 06:06:46,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:06:46,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358559055] [2024-12-02 06:06:46,937 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:06:46,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:06:46,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:06:47,284 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-02 06:06:47,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:06:47,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358559055] [2024-12-02 06:06:47,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358559055] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:06:47,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:06:47,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:06:47,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898163017] [2024-12-02 06:06:47,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:06:47,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:06:47,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:06:47,285 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:06:47,286 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:06:47,286 INFO L87 Difference]: Start difference. First operand 13937 states and 16811 transitions. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:06:48,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:06:48,112 INFO L93 Difference]: Finished difference Result 32978 states and 40133 transitions. [2024-12-02 06:06:48,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:06:48,112 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 211 [2024-12-02 06:06:48,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:06:48,141 INFO L225 Difference]: With dead ends: 32978 [2024-12-02 06:06:48,141 INFO L226 Difference]: Without dead ends: 19043 [2024-12-02 06:06:48,149 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 06:06:48,149 INFO L435 NwaCegarLoop]: 354 mSDtfsCounter, 214 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 06:06:48,150 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 375 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 06:06:48,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19043 states. [2024-12-02 06:06:48,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19043 to 18605. [2024-12-02 06:06:48,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18605 states, 18604 states have (on average 1.1936680283809933) internal successors, (22207), 18604 states have internal predecessors, (22207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:06:48,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18605 states to 18605 states and 22207 transitions. [2024-12-02 06:06:48,340 INFO L78 Accepts]: Start accepts. Automaton has 18605 states and 22207 transitions. Word has length 211 [2024-12-02 06:06:48,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:06:48,340 INFO L471 AbstractCegarLoop]: Abstraction has 18605 states and 22207 transitions. [2024-12-02 06:06:48,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:06:48,340 INFO L276 IsEmpty]: Start isEmpty. Operand 18605 states and 22207 transitions. [2024-12-02 06:06:48,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-12-02 06:06:48,362 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:06:48,363 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:48,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 06:06:48,363 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:06:48,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:06:48,363 INFO L85 PathProgramCache]: Analyzing trace with hash 278123090, now seen corresponding path program 1 times [2024-12-02 06:06:48,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:06:48,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693090234] [2024-12-02 06:06:48,364 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:06:48,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:06:48,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:06:48,713 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-02 06:06:48,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:06:48,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693090234] [2024-12-02 06:06:48,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693090234] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:06:48,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:06:48,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:06:48,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787842623] [2024-12-02 06:06:48,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:06:48,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:06:48,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:06:48,715 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:06:48,715 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:06:48,715 INFO L87 Difference]: Start difference. First operand 18605 states and 22207 transitions. Second operand has 4 states, 4 states have (on average 52.5) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:06:49,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:06:49,861 INFO L93 Difference]: Finished difference Result 37243 states and 44481 transitions. [2024-12-02 06:06:49,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:06:49,861 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.5) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2024-12-02 06:06:49,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:06:49,884 INFO L225 Difference]: With dead ends: 37243 [2024-12-02 06:06:49,884 INFO L226 Difference]: Without dead ends: 18640 [2024-12-02 06:06:49,893 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:06:49,894 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 446 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 1064 mSolverCounterSat, 344 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 1408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 344 IncrementalHoareTripleChecker+Valid, 1064 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:06:49,894 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [446 Valid, 153 Invalid, 1408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [344 Valid, 1064 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 06:06:49,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18640 states. [2024-12-02 06:06:50,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18640 to 17792. [2024-12-02 06:06:50,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17792 states, 17791 states have (on average 1.1902085324040246) internal successors, (21175), 17791 states have internal predecessors, (21175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:06:50,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17792 states to 17792 states and 21175 transitions. [2024-12-02 06:06:50,126 INFO L78 Accepts]: Start accepts. Automaton has 17792 states and 21175 transitions. Word has length 227 [2024-12-02 06:06:50,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:06:50,126 INFO L471 AbstractCegarLoop]: Abstraction has 17792 states and 21175 transitions. [2024-12-02 06:06:50,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.5) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:06:50,127 INFO L276 IsEmpty]: Start isEmpty. Operand 17792 states and 21175 transitions. [2024-12-02 06:06:50,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2024-12-02 06:06:50,147 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:06:50,147 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:50,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 06:06:50,147 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:06:50,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:06:50,148 INFO L85 PathProgramCache]: Analyzing trace with hash 2068476313, now seen corresponding path program 1 times [2024-12-02 06:06:50,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:06:50,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706519974] [2024-12-02 06:06:50,148 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:06:50,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:06:50,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:06:50,624 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 79 proven. 6 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-02 06:06:50,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:06:50,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706519974] [2024-12-02 06:06:50,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706519974] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:06:50,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465264807] [2024-12-02 06:06:50,625 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:06:50,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:06:50,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:06:50,627 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:06:50,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 06:06:50,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:06:50,817 INFO L256 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 06:06:50,823 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:06:50,867 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-02 06:06:50,867 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:06:50,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [465264807] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:06:50,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:06:50,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-12-02 06:06:50,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632260122] [2024-12-02 06:06:50,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:06:50,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:06:50,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:06:50,869 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:06:50,869 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:06:50,869 INFO L87 Difference]: Start difference. First operand 17792 states and 21175 transitions. Second operand has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:06:51,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:06:51,680 INFO L93 Difference]: Finished difference Result 44926 states and 54371 transitions. [2024-12-02 06:06:51,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:06:51,681 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 233 [2024-12-02 06:06:51,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:06:51,701 INFO L225 Difference]: With dead ends: 44926 [2024-12-02 06:06:51,701 INFO L226 Difference]: Without dead ends: 27136 [2024-12-02 06:06:51,710 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:06:51,710 INFO L435 NwaCegarLoop]: 381 mSDtfsCounter, 220 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 06:06:51,710 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 409 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 06:06:51,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27136 states. [2024-12-02 06:06:51,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27136 to 25506. [2024-12-02 06:06:51,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25506 states, 25505 states have (on average 1.161889825524407) internal successors, (29634), 25505 states have internal predecessors, (29634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:06:51,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25506 states to 25506 states and 29634 transitions. [2024-12-02 06:06:51,918 INFO L78 Accepts]: Start accepts. Automaton has 25506 states and 29634 transitions. Word has length 233 [2024-12-02 06:06:51,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:06:51,919 INFO L471 AbstractCegarLoop]: Abstraction has 25506 states and 29634 transitions. [2024-12-02 06:06:51,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:06:51,919 INFO L276 IsEmpty]: Start isEmpty. Operand 25506 states and 29634 transitions. [2024-12-02 06:06:51,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2024-12-02 06:06:51,930 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:06:51,931 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:51,941 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 06:06:52,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-12-02 06:06:52,131 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:06:52,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:06:52,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1443939385, now seen corresponding path program 1 times [2024-12-02 06:06:52,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:06:52,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896110640] [2024-12-02 06:06:52,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:06:52,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:06:52,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:06:52,479 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 80 proven. 6 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-12-02 06:06:52,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:06:52,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896110640] [2024-12-02 06:06:52,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896110640] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:06:52,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [291497164] [2024-12-02 06:06:52,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:06:52,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:06:52,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:06:52,481 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:06:52,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 06:06:52,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:06:52,653 INFO L256 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 06:06:52,657 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:06:52,822 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-12-02 06:06:52,823 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:06:52,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [291497164] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:06:52,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:06:52,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-12-02 06:06:52,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214760128] [2024-12-02 06:06:52,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:06:52,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:06:52,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:06:52,825 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:06:52,825 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:06:52,825 INFO L87 Difference]: Start difference. First operand 25506 states and 29634 transitions. Second operand has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:06:53,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:06:53,570 INFO L93 Difference]: Finished difference Result 51034 states and 59313 transitions. [2024-12-02 06:06:53,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:06:53,570 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 234 [2024-12-02 06:06:53,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:06:53,586 INFO L225 Difference]: With dead ends: 51034 [2024-12-02 06:06:53,586 INFO L226 Difference]: Without dead ends: 25530 [2024-12-02 06:06:53,594 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:06:53,595 INFO L435 NwaCegarLoop]: 373 mSDtfsCounter, 74 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 693 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 06:06:53,595 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 395 Invalid, 765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 693 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 06:06:53,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25530 states. [2024-12-02 06:06:53,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25530 to 25506. [2024-12-02 06:06:53,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25506 states, 25505 states have (on average 1.1566359537345619) internal successors, (29500), 25505 states have internal predecessors, (29500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:06:53,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25506 states to 25506 states and 29500 transitions. [2024-12-02 06:06:53,794 INFO L78 Accepts]: Start accepts. Automaton has 25506 states and 29500 transitions. Word has length 234 [2024-12-02 06:06:53,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:06:53,794 INFO L471 AbstractCegarLoop]: Abstraction has 25506 states and 29500 transitions. [2024-12-02 06:06:53,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:06:53,794 INFO L276 IsEmpty]: Start isEmpty. Operand 25506 states and 29500 transitions. [2024-12-02 06:06:53,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2024-12-02 06:06:53,804 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:06:53,804 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:53,813 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-12-02 06:06:54,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:06:54,005 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:06:54,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:06:54,005 INFO L85 PathProgramCache]: Analyzing trace with hash -895747558, now seen corresponding path program 1 times [2024-12-02 06:06:54,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:06:54,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828770721] [2024-12-02 06:06:54,005 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:06:54,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:06:54,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:06:54,203 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 06:06:54,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:06:54,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828770721] [2024-12-02 06:06:54,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828770721] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:06:54,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:06:54,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 06:06:54,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549043402] [2024-12-02 06:06:54,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:06:54,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:06:54,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:06:54,205 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:06:54,205 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:06:54,205 INFO L87 Difference]: Start difference. First operand 25506 states and 29500 transitions. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 2 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:06:55,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:06:55,051 INFO L93 Difference]: Finished difference Result 57351 states and 66689 transitions. [2024-12-02 06:06:55,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:06:55,052 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 2 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 244 [2024-12-02 06:06:55,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:06:55,078 INFO L225 Difference]: With dead ends: 57351 [2024-12-02 06:06:55,078 INFO L226 Difference]: Without dead ends: 31847 [2024-12-02 06:06:55,092 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 06:06:55,092 INFO L435 NwaCegarLoop]: 169 mSDtfsCounter, 170 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 667 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 06:06:55,093 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 203 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 667 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 06:06:55,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31847 states. [2024-12-02 06:06:55,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31847 to 30587. [2024-12-02 06:06:55,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30587 states, 30586 states have (on average 1.1654024717190872) internal successors, (35645), 30586 states have internal predecessors, (35645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:06:55,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30587 states to 30587 states and 35645 transitions. [2024-12-02 06:06:55,397 INFO L78 Accepts]: Start accepts. Automaton has 30587 states and 35645 transitions. Word has length 244 [2024-12-02 06:06:55,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:06:55,397 INFO L471 AbstractCegarLoop]: Abstraction has 30587 states and 35645 transitions. [2024-12-02 06:06:55,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 2 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:06:55,397 INFO L276 IsEmpty]: Start isEmpty. Operand 30587 states and 35645 transitions. [2024-12-02 06:06:55,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2024-12-02 06:06:55,408 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:06:55,408 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:55,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 06:06:55,408 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:06:55,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:06:55,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1955164033, now seen corresponding path program 1 times [2024-12-02 06:06:55,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:06:55,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583116072] [2024-12-02 06:06:55,409 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:06:55,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:06:55,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:06:55,753 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 74 proven. 6 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-12-02 06:06:55,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:06:55,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583116072] [2024-12-02 06:06:55,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583116072] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:06:55,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1490285067] [2024-12-02 06:06:55,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:06:55,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:06:55,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:06:55,755 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:06:55,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 06:06:55,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:06:55,905 INFO L256 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 06:06:55,908 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:06:56,016 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-12-02 06:06:56,016 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:06:56,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1490285067] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:06:56,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:06:56,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-12-02 06:06:56,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763921430] [2024-12-02 06:06:56,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:06:56,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:06:56,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:06:56,018 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:06:56,018 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:06:56,018 INFO L87 Difference]: Start difference. First operand 30587 states and 35645 transitions. Second operand has 4 states, 4 states have (on average 50.5) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:06:57,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:06:57,059 INFO L93 Difference]: Finished difference Result 87690 states and 101998 transitions. [2024-12-02 06:06:57,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:06:57,060 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 50.5) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 255 [2024-12-02 06:06:57,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:06:57,101 INFO L225 Difference]: With dead ends: 87690 [2024-12-02 06:06:57,101 INFO L226 Difference]: Without dead ends: 57105 [2024-12-02 06:06:57,117 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:06:57,117 INFO L435 NwaCegarLoop]: 291 mSDtfsCounter, 533 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 939 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 1045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 939 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 06:06:57,117 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [533 Valid, 569 Invalid, 1045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 939 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 06:06:57,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57105 states. [2024-12-02 06:06:57,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57105 to 56664. [2024-12-02 06:06:57,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56664 states, 56663 states have (on average 1.1598926989393432) internal successors, (65723), 56663 states have internal predecessors, (65723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:06:57,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56664 states to 56664 states and 65723 transitions. [2024-12-02 06:06:57,607 INFO L78 Accepts]: Start accepts. Automaton has 56664 states and 65723 transitions. Word has length 255 [2024-12-02 06:06:57,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:06:57,607 INFO L471 AbstractCegarLoop]: Abstraction has 56664 states and 65723 transitions. [2024-12-02 06:06:57,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.5) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:06:57,607 INFO L276 IsEmpty]: Start isEmpty. Operand 56664 states and 65723 transitions. [2024-12-02 06:06:57,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2024-12-02 06:06:57,620 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:06:57,620 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:57,629 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 06:06:57,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-12-02 06:06:57,821 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:06:57,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:06:57,821 INFO L85 PathProgramCache]: Analyzing trace with hash 966697269, now seen corresponding path program 1 times [2024-12-02 06:06:57,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:06:57,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255190559] [2024-12-02 06:06:57,821 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:06:57,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:06:57,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:06:58,084 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 06:06:58,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:06:58,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255190559] [2024-12-02 06:06:58,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255190559] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:06:58,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:06:58,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:06:58,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052016368] [2024-12-02 06:06:58,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:06:58,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:06:58,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:06:58,085 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:06:58,085 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:06:58,086 INFO L87 Difference]: Start difference. First operand 56664 states and 65723 transitions. Second operand has 4 states, 4 states have (on average 61.75) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:06:58,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:06:58,896 INFO L93 Difference]: Finished difference Result 85978 states and 99652 transitions. [2024-12-02 06:06:58,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:06:58,896 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 61.75) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 257 [2024-12-02 06:06:58,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:06:58,915 INFO L225 Difference]: With dead ends: 85978 [2024-12-02 06:06:58,915 INFO L226 Difference]: Without dead ends: 27286 [2024-12-02 06:06:58,933 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:06:58,934 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 558 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 807 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 06:06:58,934 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 59 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 807 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 06:06:58,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27286 states. [2024-12-02 06:06:59,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27286 to 25254. [2024-12-02 06:06:59,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25254 states, 25253 states have (on average 1.0946422207262503) internal successors, (27643), 25253 states have internal predecessors, (27643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:06:59,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25254 states to 25254 states and 27643 transitions. [2024-12-02 06:06:59,250 INFO L78 Accepts]: Start accepts. Automaton has 25254 states and 27643 transitions. Word has length 257 [2024-12-02 06:06:59,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:06:59,250 INFO L471 AbstractCegarLoop]: Abstraction has 25254 states and 27643 transitions. [2024-12-02 06:06:59,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.75) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:06:59,251 INFO L276 IsEmpty]: Start isEmpty. Operand 25254 states and 27643 transitions. [2024-12-02 06:06:59,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2024-12-02 06:06:59,265 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:06:59,265 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:59,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 06:06:59,265 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:06:59,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:06:59,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1530895428, now seen corresponding path program 1 times [2024-12-02 06:06:59,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:06:59,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298538898] [2024-12-02 06:06:59,266 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:06:59,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:06:59,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:06:59,647 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 79 proven. 6 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-12-02 06:06:59,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:06:59,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298538898] [2024-12-02 06:06:59,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298538898] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:06:59,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1050041167] [2024-12-02 06:06:59,647 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:06:59,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:06:59,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:06:59,649 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:06:59,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 06:06:59,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:06:59,866 INFO L256 TraceCheckSpWp]: Trace formula consists of 548 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 06:06:59,873 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:07:00,081 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-12-02 06:07:00,081 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:07:00,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1050041167] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:07:00,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:07:00,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-12-02 06:07:00,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252925207] [2024-12-02 06:07:00,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:07:00,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:07:00,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:07:00,083 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:07:00,083 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:07:00,083 INFO L87 Difference]: Start difference. First operand 25254 states and 27643 transitions. Second operand has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:00,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:07:00,660 INFO L93 Difference]: Finished difference Result 49700 states and 54438 transitions. [2024-12-02 06:07:00,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:07:00,660 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 277 [2024-12-02 06:07:00,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:07:00,681 INFO L225 Difference]: With dead ends: 49700 [2024-12-02 06:07:00,681 INFO L226 Difference]: Without dead ends: 24448 [2024-12-02 06:07:00,691 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:07:00,691 INFO L435 NwaCegarLoop]: 262 mSDtfsCounter, 99 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 06:07:00,691 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 271 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 06:07:00,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24448 states. [2024-12-02 06:07:00,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24448 to 24239. [2024-12-02 06:07:00,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24239 states, 24238 states have (on average 1.091096625134087) internal successors, (26446), 24238 states have internal predecessors, (26446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:00,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24239 states to 24239 states and 26446 transitions. [2024-12-02 06:07:00,865 INFO L78 Accepts]: Start accepts. Automaton has 24239 states and 26446 transitions. Word has length 277 [2024-12-02 06:07:00,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:07:00,865 INFO L471 AbstractCegarLoop]: Abstraction has 24239 states and 26446 transitions. [2024-12-02 06:07:00,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:00,865 INFO L276 IsEmpty]: Start isEmpty. Operand 24239 states and 26446 transitions. [2024-12-02 06:07:00,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2024-12-02 06:07:00,873 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:07:00,873 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:07:00,879 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 06:07:01,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-12-02 06:07:01,074 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:07:01,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:07:01,074 INFO L85 PathProgramCache]: Analyzing trace with hash 647041895, now seen corresponding path program 1 times [2024-12-02 06:07:01,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:07:01,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637435055] [2024-12-02 06:07:01,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:07:01,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:07:01,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:07:01,364 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 102 proven. 6 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-12-02 06:07:01,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:07:01,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637435055] [2024-12-02 06:07:01,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637435055] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:07:01,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367060535] [2024-12-02 06:07:01,364 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:07:01,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:07:01,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:07:01,366 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:07:01,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 06:07:01,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:07:01,545 INFO L256 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 06:07:01,548 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:07:01,650 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-12-02 06:07:01,650 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:07:01,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [367060535] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:07:01,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:07:01,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-12-02 06:07:01,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164687159] [2024-12-02 06:07:01,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:07:01,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:07:01,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:07:01,652 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:07:01,652 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:07:01,652 INFO L87 Difference]: Start difference. First operand 24239 states and 26446 transitions. Second operand has 4 states, 4 states have (on average 50.0) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:02,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:07:02,442 INFO L93 Difference]: Finished difference Result 70850 states and 77398 transitions. [2024-12-02 06:07:02,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:07:02,443 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 50.0) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2024-12-02 06:07:02,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:07:02,474 INFO L225 Difference]: With dead ends: 70850 [2024-12-02 06:07:02,475 INFO L226 Difference]: Without dead ends: 46613 [2024-12-02 06:07:02,487 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:07:02,487 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 476 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 06:07:02,488 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [476 Valid, 293 Invalid, 715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 06:07:02,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46613 states. [2024-12-02 06:07:02,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46613 to 41124. [2024-12-02 06:07:02,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41124 states, 41123 states have (on average 1.0942295066021448) internal successors, (44998), 41123 states have internal predecessors, (44998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:02,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41124 states to 41124 states and 44998 transitions. [2024-12-02 06:07:02,811 INFO L78 Accepts]: Start accepts. Automaton has 41124 states and 44998 transitions. Word has length 293 [2024-12-02 06:07:02,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:07:02,811 INFO L471 AbstractCegarLoop]: Abstraction has 41124 states and 44998 transitions. [2024-12-02 06:07:02,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.0) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:02,811 INFO L276 IsEmpty]: Start isEmpty. Operand 41124 states and 44998 transitions. [2024-12-02 06:07:02,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2024-12-02 06:07:02,867 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:07:02,868 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:07:02,876 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 06:07:03,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-12-02 06:07:03,068 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:07:03,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:07:03,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1069010768, now seen corresponding path program 1 times [2024-12-02 06:07:03,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:07:03,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173137536] [2024-12-02 06:07:03,069 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:07:03,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:07:03,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:07:03,291 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 202 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:07:03,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:07:03,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173137536] [2024-12-02 06:07:03,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173137536] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:07:03,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:07:03,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:07:03,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257339832] [2024-12-02 06:07:03,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:07:03,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:07:03,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:07:03,292 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:07:03,292 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:07:03,292 INFO L87 Difference]: Start difference. First operand 41124 states and 44998 transitions. Second operand has 4 states, 4 states have (on average 78.25) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:04,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:07:04,169 INFO L93 Difference]: Finished difference Result 111935 states and 122482 transitions. [2024-12-02 06:07:04,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:07:04,169 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 78.25) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 313 [2024-12-02 06:07:04,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:07:04,218 INFO L225 Difference]: With dead ends: 111935 [2024-12-02 06:07:04,218 INFO L226 Difference]: Without dead ends: 70813 [2024-12-02 06:07:04,239 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:07:04,240 INFO L435 NwaCegarLoop]: 206 mSDtfsCounter, 390 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 641 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 06:07:04,240 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 398 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 641 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 06:07:04,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70813 states. [2024-12-02 06:07:04,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70813 to 69780. [2024-12-02 06:07:04,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69780 states, 69779 states have (on average 1.086000085985755) internal successors, (75780), 69779 states have internal predecessors, (75780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:04,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69780 states to 69780 states and 75780 transitions. [2024-12-02 06:07:04,845 INFO L78 Accepts]: Start accepts. Automaton has 69780 states and 75780 transitions. Word has length 313 [2024-12-02 06:07:04,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:07:04,845 INFO L471 AbstractCegarLoop]: Abstraction has 69780 states and 75780 transitions. [2024-12-02 06:07:04,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.25) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:04,846 INFO L276 IsEmpty]: Start isEmpty. Operand 69780 states and 75780 transitions. [2024-12-02 06:07:04,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2024-12-02 06:07:04,859 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:07:04,859 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:07:04,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 06:07:04,859 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:07:04,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:07:04,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1827896214, now seen corresponding path program 1 times [2024-12-02 06:07:04,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:07:04,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888805319] [2024-12-02 06:07:04,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:07:04,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:07:04,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:07:05,118 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 187 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-12-02 06:07:05,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:07:05,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888805319] [2024-12-02 06:07:05,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888805319] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:07:05,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:07:05,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:07:05,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542258266] [2024-12-02 06:07:05,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:07:05,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:07:05,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:07:05,119 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:07:05,119 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:07:05,119 INFO L87 Difference]: Start difference. First operand 69780 states and 75780 transitions. Second operand has 4 states, 4 states have (on average 66.5) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:06,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:07:06,153 INFO L93 Difference]: Finished difference Result 146509 states and 158957 transitions. [2024-12-02 06:07:06,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:07:06,154 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 66.5) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 347 [2024-12-02 06:07:06,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:07:06,206 INFO L225 Difference]: With dead ends: 146509 [2024-12-02 06:07:06,206 INFO L226 Difference]: Without dead ends: 73686 [2024-12-02 06:07:06,232 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:07:06,232 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 351 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 983 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 1078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 06:07:06,232 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 89 Invalid, 1078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 983 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 06:07:06,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73686 states. [2024-12-02 06:07:06,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73686 to 71414. [2024-12-02 06:07:06,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71414 states, 71413 states have (on average 1.0829820900956408) internal successors, (77339), 71413 states have internal predecessors, (77339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:06,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71414 states to 71414 states and 77339 transitions. [2024-12-02 06:07:06,973 INFO L78 Accepts]: Start accepts. Automaton has 71414 states and 77339 transitions. Word has length 347 [2024-12-02 06:07:06,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:07:06,973 INFO L471 AbstractCegarLoop]: Abstraction has 71414 states and 77339 transitions. [2024-12-02 06:07:06,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 66.5) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:06,973 INFO L276 IsEmpty]: Start isEmpty. Operand 71414 states and 77339 transitions. [2024-12-02 06:07:07,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2024-12-02 06:07:07,000 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:07:07,000 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:07:07,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 06:07:07,001 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:07:07,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:07:07,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1067620483, now seen corresponding path program 1 times [2024-12-02 06:07:07,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:07:07,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932065692] [2024-12-02 06:07:07,001 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:07:07,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:07:07,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:07:07,384 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 215 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-12-02 06:07:07,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:07:07,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932065692] [2024-12-02 06:07:07,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932065692] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:07:07,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:07:07,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 06:07:07,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450618298] [2024-12-02 06:07:07,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:07:07,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:07:07,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:07:07,386 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:07:07,386 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:07:07,386 INFO L87 Difference]: Start difference. First operand 71414 states and 77339 transitions. Second operand has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 2 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:08,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:07:08,131 INFO L93 Difference]: Finished difference Result 206100 states and 223317 transitions. [2024-12-02 06:07:08,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:07:08,131 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 2 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 375 [2024-12-02 06:07:08,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:07:08,243 INFO L225 Difference]: With dead ends: 206100 [2024-12-02 06:07:08,243 INFO L226 Difference]: Without dead ends: 134688 [2024-12-02 06:07:08,281 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 06:07:08,281 INFO L435 NwaCegarLoop]: 239 mSDtfsCounter, 173 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:07:08,281 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 466 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 06:07:08,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134688 states. [2024-12-02 06:07:09,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134688 to 130815. [2024-12-02 06:07:09,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130815 states, 130814 states have (on average 1.0834314370021558) internal successors, (141728), 130814 states have internal predecessors, (141728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:09,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130815 states to 130815 states and 141728 transitions. [2024-12-02 06:07:09,471 INFO L78 Accepts]: Start accepts. Automaton has 130815 states and 141728 transitions. Word has length 375 [2024-12-02 06:07:09,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:07:09,471 INFO L471 AbstractCegarLoop]: Abstraction has 130815 states and 141728 transitions. [2024-12-02 06:07:09,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 2 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:09,471 INFO L276 IsEmpty]: Start isEmpty. Operand 130815 states and 141728 transitions. [2024-12-02 06:07:09,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2024-12-02 06:07:09,488 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:07:09,489 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:07:09,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 06:07:09,489 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:07:09,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:07:09,489 INFO L85 PathProgramCache]: Analyzing trace with hash 2020663209, now seen corresponding path program 1 times [2024-12-02 06:07:09,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:07:09,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059838249] [2024-12-02 06:07:09,489 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:07:09,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:07:09,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:07:10,158 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 246 proven. 9 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-12-02 06:07:10,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:07:10,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059838249] [2024-12-02 06:07:10,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059838249] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:07:10,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [774238144] [2024-12-02 06:07:10,159 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:07:10,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:07:10,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:07:10,160 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:07:10,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 06:07:10,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:07:10,380 INFO L256 TraceCheckSpWp]: Trace formula consists of 675 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 06:07:10,383 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:07:10,405 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 249 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-12-02 06:07:10,405 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:07:10,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [774238144] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:07:10,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:07:10,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-12-02 06:07:10,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151470756] [2024-12-02 06:07:10,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:07:10,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:07:10,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:07:10,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:07:10,407 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:07:10,407 INFO L87 Difference]: Start difference. First operand 130815 states and 141728 transitions. Second operand has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:11,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:07:11,401 INFO L93 Difference]: Finished difference Result 258414 states and 280014 transitions. [2024-12-02 06:07:11,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:07:11,402 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 398 [2024-12-02 06:07:11,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:07:11,512 INFO L225 Difference]: With dead ends: 258414 [2024-12-02 06:07:11,512 INFO L226 Difference]: Without dead ends: 127601 [2024-12-02 06:07:11,560 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 397 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 06:07:11,560 INFO L435 NwaCegarLoop]: 320 mSDtfsCounter, 209 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 06:07:11,561 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 336 Invalid, 574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 06:07:11,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127601 states. [2024-12-02 06:07:12,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127601 to 121875. [2024-12-02 06:07:12,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121875 states, 121874 states have (on average 1.077859100382362) internal successors, (131363), 121874 states have internal predecessors, (131363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:12,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121875 states to 121875 states and 131363 transitions. [2024-12-02 06:07:12,826 INFO L78 Accepts]: Start accepts. Automaton has 121875 states and 131363 transitions. Word has length 398 [2024-12-02 06:07:12,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:07:12,827 INFO L471 AbstractCegarLoop]: Abstraction has 121875 states and 131363 transitions. [2024-12-02 06:07:12,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:12,827 INFO L276 IsEmpty]: Start isEmpty. Operand 121875 states and 131363 transitions. [2024-12-02 06:07:12,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2024-12-02 06:07:12,843 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:07:12,843 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:07:12,849 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 06:07:13,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:07:13,044 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:07:13,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:07:13,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1278796474, now seen corresponding path program 1 times [2024-12-02 06:07:13,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:07:13,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593489964] [2024-12-02 06:07:13,044 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:07:13,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:07:13,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:07:13,388 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 376 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-12-02 06:07:13,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:07:13,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593489964] [2024-12-02 06:07:13,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593489964] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:07:13,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:07:13,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:07:13,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740325076] [2024-12-02 06:07:13,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:07:13,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:07:13,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:07:13,389 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:07:13,389 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:07:13,389 INFO L87 Difference]: Start difference. First operand 121875 states and 131363 transitions. Second operand has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:14,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:07:14,312 INFO L93 Difference]: Finished difference Result 225443 states and 242438 transitions. [2024-12-02 06:07:14,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:07:14,313 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 400 [2024-12-02 06:07:14,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:07:14,381 INFO L225 Difference]: With dead ends: 225443 [2024-12-02 06:07:14,381 INFO L226 Difference]: Without dead ends: 94841 [2024-12-02 06:07:14,416 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 06:07:14,416 INFO L435 NwaCegarLoop]: 275 mSDtfsCounter, 158 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 06:07:14,417 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 291 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 06:07:14,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94841 states. [2024-12-02 06:07:15,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94841 to 85692. [2024-12-02 06:07:15,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85692 states, 85691 states have (on average 1.0591544036129816) internal successors, (90760), 85691 states have internal predecessors, (90760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:15,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85692 states to 85692 states and 90760 transitions. [2024-12-02 06:07:15,183 INFO L78 Accepts]: Start accepts. Automaton has 85692 states and 90760 transitions. Word has length 400 [2024-12-02 06:07:15,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:07:15,183 INFO L471 AbstractCegarLoop]: Abstraction has 85692 states and 90760 transitions. [2024-12-02 06:07:15,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:15,183 INFO L276 IsEmpty]: Start isEmpty. Operand 85692 states and 90760 transitions. [2024-12-02 06:07:15,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2024-12-02 06:07:15,191 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:07:15,191 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:07:15,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 06:07:15,192 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:07:15,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:07:15,192 INFO L85 PathProgramCache]: Analyzing trace with hash -262900740, now seen corresponding path program 1 times [2024-12-02 06:07:15,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:07:15,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913741129] [2024-12-02 06:07:15,192 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:07:15,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:07:15,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:07:15,633 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 346 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-12-02 06:07:15,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:07:15,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913741129] [2024-12-02 06:07:15,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913741129] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:07:15,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:07:15,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:07:15,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936343700] [2024-12-02 06:07:15,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:07:15,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:07:15,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:07:15,635 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:07:15,635 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:07:15,635 INFO L87 Difference]: Start difference. First operand 85692 states and 90760 transitions. Second operand has 4 states, 4 states have (on average 94.0) internal successors, (376), 3 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:16,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:07:16,382 INFO L93 Difference]: Finished difference Result 172631 states and 182842 transitions. [2024-12-02 06:07:16,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:07:16,382 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 94.0) internal successors, (376), 3 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 409 [2024-12-02 06:07:16,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:07:16,443 INFO L225 Difference]: With dead ends: 172631 [2024-12-02 06:07:16,443 INFO L226 Difference]: Without dead ends: 82069 [2024-12-02 06:07:16,477 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:07:16,478 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 426 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 06:07:16,478 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [426 Valid, 43 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 06:07:16,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82069 states. [2024-12-02 06:07:16,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82069 to 61890. [2024-12-02 06:07:16,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61890 states, 61889 states have (on average 1.051026838371924) internal successors, (65047), 61889 states have internal predecessors, (65047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:17,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61890 states to 61890 states and 65047 transitions. [2024-12-02 06:07:17,004 INFO L78 Accepts]: Start accepts. Automaton has 61890 states and 65047 transitions. Word has length 409 [2024-12-02 06:07:17,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:07:17,005 INFO L471 AbstractCegarLoop]: Abstraction has 61890 states and 65047 transitions. [2024-12-02 06:07:17,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 94.0) internal successors, (376), 3 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:17,005 INFO L276 IsEmpty]: Start isEmpty. Operand 61890 states and 65047 transitions. [2024-12-02 06:07:17,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 418 [2024-12-02 06:07:17,110 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:07:17,110 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:07:17,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 06:07:17,110 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:07:17,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:07:17,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1556280656, now seen corresponding path program 1 times [2024-12-02 06:07:17,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:07:17,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394979578] [2024-12-02 06:07:17,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:07:17,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:07:17,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:07:18,008 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 362 proven. 12 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-12-02 06:07:18,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:07:18,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394979578] [2024-12-02 06:07:18,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394979578] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:07:18,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [839416463] [2024-12-02 06:07:18,008 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:07:18,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:07:18,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:07:18,010 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:07:18,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 06:07:18,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:07:18,297 INFO L256 TraceCheckSpWp]: Trace formula consists of 688 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 06:07:18,301 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:07:18,499 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 368 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-12-02 06:07:18,499 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:07:18,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [839416463] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:07:18,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:07:18,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-12-02 06:07:18,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858433709] [2024-12-02 06:07:18,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:07:18,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:07:18,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:07:18,500 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:07:18,500 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:07:18,500 INFO L87 Difference]: Start difference. First operand 61890 states and 65047 transitions. Second operand has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:19,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:07:19,353 INFO L93 Difference]: Finished difference Result 120534 states and 126541 transitions. [2024-12-02 06:07:19,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:07:19,353 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 417 [2024-12-02 06:07:19,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:07:19,495 INFO L225 Difference]: With dead ends: 120534 [2024-12-02 06:07:19,495 INFO L226 Difference]: Without dead ends: 53774 [2024-12-02 06:07:19,508 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 420 GetRequests, 416 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 06:07:19,508 INFO L435 NwaCegarLoop]: 308 mSDtfsCounter, 139 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 06:07:19,509 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 324 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 06:07:19,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53774 states. [2024-12-02 06:07:19,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53774 to 51315. [2024-12-02 06:07:19,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51315 states, 51314 states have (on average 1.0490899169817205) internal successors, (53833), 51314 states have internal predecessors, (53833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:19,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51315 states to 51315 states and 53833 transitions. [2024-12-02 06:07:19,907 INFO L78 Accepts]: Start accepts. Automaton has 51315 states and 53833 transitions. Word has length 417 [2024-12-02 06:07:19,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:07:19,907 INFO L471 AbstractCegarLoop]: Abstraction has 51315 states and 53833 transitions. [2024-12-02 06:07:19,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:19,908 INFO L276 IsEmpty]: Start isEmpty. Operand 51315 states and 53833 transitions. [2024-12-02 06:07:19,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2024-12-02 06:07:19,913 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:07:19,913 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:07:19,922 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 06:07:20,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-12-02 06:07:20,113 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:07:20,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:07:20,114 INFO L85 PathProgramCache]: Analyzing trace with hash 432053290, now seen corresponding path program 1 times [2024-12-02 06:07:20,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:07:20,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702722944] [2024-12-02 06:07:20,114 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:07:20,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:07:20,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:07:20,492 INFO L134 CoverageAnalysis]: Checked inductivity of 535 backedges. 396 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2024-12-02 06:07:20,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:07:20,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702722944] [2024-12-02 06:07:20,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702722944] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:07:20,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:07:20,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:07:20,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18838934] [2024-12-02 06:07:20,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:07:20,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:07:20,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:07:20,493 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:07:20,493 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:07:20,493 INFO L87 Difference]: Start difference. First operand 51315 states and 53833 transitions. Second operand has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:21,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:07:21,134 INFO L93 Difference]: Finished difference Result 103846 states and 108888 transitions. [2024-12-02 06:07:21,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:07:21,134 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 421 [2024-12-02 06:07:21,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:07:21,170 INFO L225 Difference]: With dead ends: 103846 [2024-12-02 06:07:21,170 INFO L226 Difference]: Without dead ends: 52533 [2024-12-02 06:07:21,190 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:07:21,191 INFO L435 NwaCegarLoop]: 298 mSDtfsCounter, 153 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 06:07:21,191 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 315 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 06:07:21,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52533 states. [2024-12-02 06:07:21,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52533 to 51315. [2024-12-02 06:07:21,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51315 states, 51314 states have (on average 1.046069298826831) internal successors, (53678), 51314 states have internal predecessors, (53678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:21,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51315 states to 51315 states and 53678 transitions. [2024-12-02 06:07:21,746 INFO L78 Accepts]: Start accepts. Automaton has 51315 states and 53678 transitions. Word has length 421 [2024-12-02 06:07:21,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:07:21,746 INFO L471 AbstractCegarLoop]: Abstraction has 51315 states and 53678 transitions. [2024-12-02 06:07:21,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:21,746 INFO L276 IsEmpty]: Start isEmpty. Operand 51315 states and 53678 transitions. [2024-12-02 06:07:21,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2024-12-02 06:07:21,752 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:07:21,752 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:07:21,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 06:07:21,752 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:07:21,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:07:21,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1585525713, now seen corresponding path program 1 times [2024-12-02 06:07:21,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:07:21,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653796664] [2024-12-02 06:07:21,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:07:21,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:07:21,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:07:22,206 INFO L134 CoverageAnalysis]: Checked inductivity of 594 backedges. 449 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-12-02 06:07:22,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:07:22,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653796664] [2024-12-02 06:07:22,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653796664] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:07:22,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:07:22,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:07:22,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755936306] [2024-12-02 06:07:22,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:07:22,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:07:22,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:07:22,208 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:07:22,208 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:07:22,208 INFO L87 Difference]: Start difference. First operand 51315 states and 53678 transitions. Second operand has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:22,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:07:22,821 INFO L93 Difference]: Finished difference Result 105673 states and 110492 transitions. [2024-12-02 06:07:22,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:07:22,822 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 455 [2024-12-02 06:07:22,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:07:22,859 INFO L225 Difference]: With dead ends: 105673 [2024-12-02 06:07:22,860 INFO L226 Difference]: Without dead ends: 53544 [2024-12-02 06:07:22,879 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 06:07:22,880 INFO L435 NwaCegarLoop]: 298 mSDtfsCounter, 154 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 06:07:22,880 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 316 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 06:07:22,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53544 states. [2024-12-02 06:07:23,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53544 to 52930. [2024-12-02 06:07:23,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52930 states, 52929 states have (on average 1.0450414706493605) internal successors, (55313), 52929 states have internal predecessors, (55313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:23,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52930 states to 52930 states and 55313 transitions. [2024-12-02 06:07:23,394 INFO L78 Accepts]: Start accepts. Automaton has 52930 states and 55313 transitions. Word has length 455 [2024-12-02 06:07:23,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:07:23,395 INFO L471 AbstractCegarLoop]: Abstraction has 52930 states and 55313 transitions. [2024-12-02 06:07:23,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:23,395 INFO L276 IsEmpty]: Start isEmpty. Operand 52930 states and 55313 transitions. [2024-12-02 06:07:23,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2024-12-02 06:07:23,401 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:07:23,401 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:07:23,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 06:07:23,401 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:07:23,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:07:23,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1160797929, now seen corresponding path program 1 times [2024-12-02 06:07:23,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:07:23,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585242818] [2024-12-02 06:07:23,402 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:07:23,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:07:23,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:07:23,872 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 450 proven. 158 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-12-02 06:07:23,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:07:23,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585242818] [2024-12-02 06:07:23,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585242818] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:07:23,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [249957110] [2024-12-02 06:07:23,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:07:23,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:07:23,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:07:23,874 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:07:23,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 06:07:24,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:07:24,167 INFO L256 TraceCheckSpWp]: Trace formula consists of 772 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 06:07:24,169 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:07:24,207 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 401 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-12-02 06:07:24,207 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:07:24,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [249957110] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:07:24,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:07:24,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-12-02 06:07:24,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645465512] [2024-12-02 06:07:24,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:07:24,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:07:24,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:07:24,208 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:07:24,208 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:07:24,208 INFO L87 Difference]: Start difference. First operand 52930 states and 55313 transitions. Second operand has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:24,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:07:24,599 INFO L93 Difference]: Finished difference Result 108902 states and 113607 transitions. [2024-12-02 06:07:24,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:07:24,599 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 462 [2024-12-02 06:07:24,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:07:24,636 INFO L225 Difference]: With dead ends: 108902 [2024-12-02 06:07:24,636 INFO L226 Difference]: Without dead ends: 51301 [2024-12-02 06:07:24,655 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 462 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:07:24,656 INFO L435 NwaCegarLoop]: 474 mSDtfsCounter, 205 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:07:24,656 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 663 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 06:07:24,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51301 states. [2024-12-02 06:07:24,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51301 to 49671. [2024-12-02 06:07:25,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49671 states, 49670 states have (on average 1.040386551238172) internal successors, (51676), 49670 states have internal predecessors, (51676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:25,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49671 states to 49671 states and 51676 transitions. [2024-12-02 06:07:25,057 INFO L78 Accepts]: Start accepts. Automaton has 49671 states and 51676 transitions. Word has length 462 [2024-12-02 06:07:25,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:07:25,058 INFO L471 AbstractCegarLoop]: Abstraction has 49671 states and 51676 transitions. [2024-12-02 06:07:25,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:25,058 INFO L276 IsEmpty]: Start isEmpty. Operand 49671 states and 51676 transitions. [2024-12-02 06:07:25,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2024-12-02 06:07:25,064 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:07:25,064 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:07:25,070 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-02 06:07:25,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-12-02 06:07:25,265 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:07:25,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:07:25,265 INFO L85 PathProgramCache]: Analyzing trace with hash -848125226, now seen corresponding path program 1 times [2024-12-02 06:07:25,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:07:25,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330041272] [2024-12-02 06:07:25,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:07:25,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:07:25,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:07:25,896 INFO L134 CoverageAnalysis]: Checked inductivity of 735 backedges. 568 proven. 24 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2024-12-02 06:07:25,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:07:25,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330041272] [2024-12-02 06:07:25,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330041272] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:07:25,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1416747684] [2024-12-02 06:07:25,896 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:07:25,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:07:25,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:07:25,898 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:07:25,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 06:07:26,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:07:26,217 INFO L256 TraceCheckSpWp]: Trace formula consists of 841 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 06:07:26,223 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:07:26,637 INFO L134 CoverageAnalysis]: Checked inductivity of 735 backedges. 574 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2024-12-02 06:07:26,637 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:07:26,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1416747684] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:07:26,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:07:26,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-12-02 06:07:26,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105807465] [2024-12-02 06:07:26,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:07:26,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:07:26,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:07:26,639 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:07:26,639 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:07:26,639 INFO L87 Difference]: Start difference. First operand 49671 states and 51676 transitions. Second operand has 3 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:27,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:07:27,339 INFO L93 Difference]: Finished difference Result 91182 states and 94870 transitions. [2024-12-02 06:07:27,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:07:27,340 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 482 [2024-12-02 06:07:27,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:07:27,374 INFO L225 Difference]: With dead ends: 91182 [2024-12-02 06:07:27,374 INFO L226 Difference]: Without dead ends: 41513 [2024-12-02 06:07:27,394 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 485 GetRequests, 482 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:07:27,395 INFO L435 NwaCegarLoop]: 287 mSDtfsCounter, 150 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 06:07:27,395 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 302 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 06:07:27,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41513 states. [2024-12-02 06:07:27,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41513 to 38265. [2024-12-02 06:07:27,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38265 states, 38264 states have (on average 1.0374242107463936) internal successors, (39696), 38264 states have internal predecessors, (39696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:27,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38265 states to 38265 states and 39696 transitions. [2024-12-02 06:07:27,900 INFO L78 Accepts]: Start accepts. Automaton has 38265 states and 39696 transitions. Word has length 482 [2024-12-02 06:07:27,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:07:27,900 INFO L471 AbstractCegarLoop]: Abstraction has 38265 states and 39696 transitions. [2024-12-02 06:07:27,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:27,900 INFO L276 IsEmpty]: Start isEmpty. Operand 38265 states and 39696 transitions. [2024-12-02 06:07:27,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2024-12-02 06:07:27,917 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:07:27,917 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:07:27,923 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-12-02 06:07:28,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-12-02 06:07:28,118 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:07:28,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:07:28,119 INFO L85 PathProgramCache]: Analyzing trace with hash 68698594, now seen corresponding path program 1 times [2024-12-02 06:07:28,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:07:28,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749495766] [2024-12-02 06:07:28,119 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:07:28,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:07:28,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:07:28,981 INFO L134 CoverageAnalysis]: Checked inductivity of 722 backedges. 510 proven. 158 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-12-02 06:07:28,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:07:28,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749495766] [2024-12-02 06:07:28,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749495766] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:07:28,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [173192251] [2024-12-02 06:07:28,982 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:07:28,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:07:28,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:07:28,984 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:07:28,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-02 06:07:29,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:07:29,305 INFO L256 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 06:07:29,310 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:07:29,376 INFO L134 CoverageAnalysis]: Checked inductivity of 722 backedges. 481 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-12-02 06:07:29,376 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:07:29,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [173192251] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:07:29,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:07:29,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-12-02 06:07:29,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628834293] [2024-12-02 06:07:29,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:07:29,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:07:29,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:07:29,377 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:07:29,377 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:07:29,378 INFO L87 Difference]: Start difference. First operand 38265 states and 39696 transitions. Second operand has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:29,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:07:29,824 INFO L93 Difference]: Finished difference Result 103161 states and 107047 transitions. [2024-12-02 06:07:29,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:07:29,825 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 482 [2024-12-02 06:07:29,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:07:29,876 INFO L225 Difference]: With dead ends: 103161 [2024-12-02 06:07:29,876 INFO L226 Difference]: Without dead ends: 62868 [2024-12-02 06:07:29,897 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 486 GetRequests, 482 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:07:29,897 INFO L435 NwaCegarLoop]: 499 mSDtfsCounter, 207 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:07:29,898 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 711 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 06:07:29,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62868 states. [2024-12-02 06:07:30,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62868 to 61851. [2024-12-02 06:07:30,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61851 states, 61850 states have (on average 1.0346321746160065) internal successors, (63992), 61850 states have internal predecessors, (63992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:30,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61851 states to 61851 states and 63992 transitions. [2024-12-02 06:07:30,667 INFO L78 Accepts]: Start accepts. Automaton has 61851 states and 63992 transitions. Word has length 482 [2024-12-02 06:07:30,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:07:30,668 INFO L471 AbstractCegarLoop]: Abstraction has 61851 states and 63992 transitions. [2024-12-02 06:07:30,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:30,668 INFO L276 IsEmpty]: Start isEmpty. Operand 61851 states and 63992 transitions. [2024-12-02 06:07:30,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 484 [2024-12-02 06:07:30,684 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:07:30,684 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:07:30,690 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-12-02 06:07:30,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-12-02 06:07:30,884 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:07:30,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:07:30,885 INFO L85 PathProgramCache]: Analyzing trace with hash -109876325, now seen corresponding path program 1 times [2024-12-02 06:07:30,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:07:30,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358464760] [2024-12-02 06:07:30,885 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:07:30,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:07:31,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:07:31,456 INFO L134 CoverageAnalysis]: Checked inductivity of 705 backedges. 483 proven. 178 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-12-02 06:07:31,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:07:31,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358464760] [2024-12-02 06:07:31,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358464760] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:07:31,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1325450842] [2024-12-02 06:07:31,456 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:07:31,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:07:31,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:07:31,458 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:07:31,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-12-02 06:07:31,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:07:31,697 INFO L256 TraceCheckSpWp]: Trace formula consists of 841 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 06:07:31,700 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:07:31,787 INFO L134 CoverageAnalysis]: Checked inductivity of 705 backedges. 584 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-12-02 06:07:31,787 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:07:31,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1325450842] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:07:31,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:07:31,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-12-02 06:07:31,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303905357] [2024-12-02 06:07:31,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:07:31,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:07:31,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:07:31,788 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:07:31,788 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:07:31,789 INFO L87 Difference]: Start difference. First operand 61851 states and 63992 transitions. Second operand has 3 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:32,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:07:32,439 INFO L93 Difference]: Finished difference Result 123294 states and 127566 transitions. [2024-12-02 06:07:32,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:07:32,440 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 483 [2024-12-02 06:07:32,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:07:32,483 INFO L225 Difference]: With dead ends: 123294 [2024-12-02 06:07:32,483 INFO L226 Difference]: Without dead ends: 61039 [2024-12-02 06:07:32,507 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 486 GetRequests, 483 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:07:32,508 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 155 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 06:07:32,508 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 69 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 06:07:32,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61039 states. [2024-12-02 06:07:32,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61039 to 45590. [2024-12-02 06:07:32,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45590 states, 45589 states have (on average 1.0328807387747043) internal successors, (47088), 45589 states have internal predecessors, (47088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:32,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45590 states to 45590 states and 47088 transitions. [2024-12-02 06:07:32,897 INFO L78 Accepts]: Start accepts. Automaton has 45590 states and 47088 transitions. Word has length 483 [2024-12-02 06:07:32,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:07:32,897 INFO L471 AbstractCegarLoop]: Abstraction has 45590 states and 47088 transitions. [2024-12-02 06:07:32,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:32,897 INFO L276 IsEmpty]: Start isEmpty. Operand 45590 states and 47088 transitions. [2024-12-02 06:07:32,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 503 [2024-12-02 06:07:32,906 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:07:32,906 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:07:32,912 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-12-02 06:07:33,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-12-02 06:07:33,107 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:07:33,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:07:33,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1812810310, now seen corresponding path program 1 times [2024-12-02 06:07:33,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:07:33,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835818517] [2024-12-02 06:07:33,108 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:07:33,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:07:33,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:07:33,723 INFO L134 CoverageAnalysis]: Checked inductivity of 769 backedges. 586 proven. 18 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2024-12-02 06:07:33,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:07:33,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835818517] [2024-12-02 06:07:33,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835818517] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:07:33,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1743643465] [2024-12-02 06:07:33,723 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:07:33,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:07:33,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:07:33,725 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:07:33,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-12-02 06:07:33,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:07:33,966 INFO L256 TraceCheckSpWp]: Trace formula consists of 867 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 06:07:33,969 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:07:34,136 INFO L134 CoverageAnalysis]: Checked inductivity of 769 backedges. 483 proven. 0 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2024-12-02 06:07:34,137 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:07:34,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1743643465] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:07:34,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:07:34,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-12-02 06:07:34,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013033700] [2024-12-02 06:07:34,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:07:34,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:07:34,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:07:34,137 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:07:34,138 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:07:34,138 INFO L87 Difference]: Start difference. First operand 45590 states and 47088 transitions. Second operand has 3 states, 3 states have (on average 98.0) internal successors, (294), 2 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:34,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:07:34,531 INFO L93 Difference]: Finished difference Result 126375 states and 130459 transitions. [2024-12-02 06:07:34,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:07:34,531 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 98.0) internal successors, (294), 2 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 502 [2024-12-02 06:07:34,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:07:34,584 INFO L225 Difference]: With dead ends: 126375 [2024-12-02 06:07:34,584 INFO L226 Difference]: Without dead ends: 80787 [2024-12-02 06:07:34,606 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 506 GetRequests, 502 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:07:34,606 INFO L435 NwaCegarLoop]: 230 mSDtfsCounter, 149 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:07:34,607 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 446 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 06:07:34,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80787 states. [2024-12-02 06:07:35,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80787 to 68571. [2024-12-02 06:07:35,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68571 states, 68570 states have (on average 1.0330611054396968) internal successors, (70837), 68570 states have internal predecessors, (70837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:35,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68571 states to 68571 states and 70837 transitions. [2024-12-02 06:07:35,184 INFO L78 Accepts]: Start accepts. Automaton has 68571 states and 70837 transitions. Word has length 502 [2024-12-02 06:07:35,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:07:35,185 INFO L471 AbstractCegarLoop]: Abstraction has 68571 states and 70837 transitions. [2024-12-02 06:07:35,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.0) internal successors, (294), 2 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:35,185 INFO L276 IsEmpty]: Start isEmpty. Operand 68571 states and 70837 transitions. [2024-12-02 06:07:35,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 552 [2024-12-02 06:07:35,193 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:07:35,194 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:07:35,200 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-12-02 06:07:35,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:07:35,394 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:07:35,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:07:35,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1318839990, now seen corresponding path program 1 times [2024-12-02 06:07:35,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:07:35,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644603248] [2024-12-02 06:07:35,395 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:07:35,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:07:35,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:07:36,426 INFO L134 CoverageAnalysis]: Checked inductivity of 843 backedges. 535 proven. 200 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-12-02 06:07:36,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:07:36,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644603248] [2024-12-02 06:07:36,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644603248] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:07:36,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [662025642] [2024-12-02 06:07:36,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:07:36,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:07:36,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:07:36,428 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:07:36,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-12-02 06:07:36,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:07:36,695 INFO L256 TraceCheckSpWp]: Trace formula consists of 819 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 06:07:36,700 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:07:36,921 INFO L134 CoverageAnalysis]: Checked inductivity of 843 backedges. 535 proven. 0 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2024-12-02 06:07:36,921 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:07:36,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [662025642] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:07:36,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:07:36,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-12-02 06:07:36,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961394833] [2024-12-02 06:07:36,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:07:36,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:07:36,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:07:36,922 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:07:36,922 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:07:36,922 INFO L87 Difference]: Start difference. First operand 68571 states and 70837 transitions. Second operand has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:37,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:07:37,631 INFO L93 Difference]: Finished difference Result 142641 states and 147328 transitions. [2024-12-02 06:07:37,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:07:37,632 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 551 [2024-12-02 06:07:37,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:07:37,701 INFO L225 Difference]: With dead ends: 142641 [2024-12-02 06:07:37,701 INFO L226 Difference]: Without dead ends: 73666 [2024-12-02 06:07:37,728 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 554 GetRequests, 550 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:07:37,728 INFO L435 NwaCegarLoop]: 282 mSDtfsCounter, 63 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 06:07:37,728 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 307 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 06:07:37,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73666 states. [2024-12-02 06:07:38,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73666 to 69586. [2024-12-02 06:07:38,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69586 states, 69585 states have (on average 1.0319896529424446) internal successors, (71811), 69585 states have internal predecessors, (71811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:38,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69586 states to 69586 states and 71811 transitions. [2024-12-02 06:07:38,280 INFO L78 Accepts]: Start accepts. Automaton has 69586 states and 71811 transitions. Word has length 551 [2024-12-02 06:07:38,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:07:38,281 INFO L471 AbstractCegarLoop]: Abstraction has 69586 states and 71811 transitions. [2024-12-02 06:07:38,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:38,281 INFO L276 IsEmpty]: Start isEmpty. Operand 69586 states and 71811 transitions. [2024-12-02 06:07:38,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 575 [2024-12-02 06:07:38,290 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:07:38,290 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:07:38,296 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-12-02 06:07:38,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-12-02 06:07:38,490 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:07:38,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:07:38,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1437153551, now seen corresponding path program 1 times [2024-12-02 06:07:38,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:07:38,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499633249] [2024-12-02 06:07:38,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:07:38,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:07:38,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:07:38,854 INFO L134 CoverageAnalysis]: Checked inductivity of 859 backedges. 375 proven. 0 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2024-12-02 06:07:38,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:07:38,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499633249] [2024-12-02 06:07:38,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499633249] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:07:38,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:07:38,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 06:07:38,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461808140] [2024-12-02 06:07:38,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:07:38,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:07:38,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:07:38,855 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:07:38,855 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:07:38,855 INFO L87 Difference]: Start difference. First operand 69586 states and 71811 transitions. Second operand has 3 states, 3 states have (on average 95.0) internal successors, (285), 2 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:39,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:07:39,626 INFO L93 Difference]: Finished difference Result 162791 states and 168118 transitions. [2024-12-02 06:07:39,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:07:39,627 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 95.0) internal successors, (285), 2 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 574 [2024-12-02 06:07:39,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:07:39,690 INFO L225 Difference]: With dead ends: 162791 [2024-12-02 06:07:39,690 INFO L226 Difference]: Without dead ends: 93207 [2024-12-02 06:07:39,715 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 06:07:39,715 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 112 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 06:07:39,716 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 79 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 06:07:39,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93207 states. [2024-12-02 06:07:40,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93207 to 86506. [2024-12-02 06:07:40,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86506 states, 86505 states have (on average 1.0344373157620947) internal successors, (89484), 86505 states have internal predecessors, (89484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:40,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86506 states to 86506 states and 89484 transitions. [2024-12-02 06:07:40,403 INFO L78 Accepts]: Start accepts. Automaton has 86506 states and 89484 transitions. Word has length 574 [2024-12-02 06:07:40,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:07:40,403 INFO L471 AbstractCegarLoop]: Abstraction has 86506 states and 89484 transitions. [2024-12-02 06:07:40,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.0) internal successors, (285), 2 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:40,403 INFO L276 IsEmpty]: Start isEmpty. Operand 86506 states and 89484 transitions. [2024-12-02 06:07:40,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 582 [2024-12-02 06:07:40,414 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:07:40,414 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:07:40,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-12-02 06:07:40,414 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:07:40,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:07:40,415 INFO L85 PathProgramCache]: Analyzing trace with hash 948298844, now seen corresponding path program 1 times [2024-12-02 06:07:40,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:07:40,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523493942] [2024-12-02 06:07:40,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:07:40,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:07:40,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:07:40,867 INFO L134 CoverageAnalysis]: Checked inductivity of 893 backedges. 409 proven. 0 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2024-12-02 06:07:40,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:07:40,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523493942] [2024-12-02 06:07:40,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523493942] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:07:40,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:07:40,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:07:40,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357005413] [2024-12-02 06:07:40,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:07:40,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:07:40,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:07:40,868 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:07:40,868 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:07:40,868 INFO L87 Difference]: Start difference. First operand 86506 states and 89484 transitions. Second operand has 4 states, 4 states have (on average 73.0) internal successors, (292), 3 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:41,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:07:41,641 INFO L93 Difference]: Finished difference Result 175068 states and 181108 transitions. [2024-12-02 06:07:41,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:07:41,642 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 73.0) internal successors, (292), 3 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 581 [2024-12-02 06:07:41,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:07:41,703 INFO L225 Difference]: With dead ends: 175068 [2024-12-02 06:07:41,703 INFO L226 Difference]: Without dead ends: 88564 [2024-12-02 06:07:41,735 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:07:41,736 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 483 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 06:07:41,736 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [483 Valid, 224 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 06:07:41,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88564 states. [2024-12-02 06:07:42,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88564 to 64714. [2024-12-02 06:07:42,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64714 states, 64713 states have (on average 1.0326364099949006) internal successors, (66825), 64713 states have internal predecessors, (66825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:42,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64714 states to 64714 states and 66825 transitions. [2024-12-02 06:07:42,363 INFO L78 Accepts]: Start accepts. Automaton has 64714 states and 66825 transitions. Word has length 581 [2024-12-02 06:07:42,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:07:42,363 INFO L471 AbstractCegarLoop]: Abstraction has 64714 states and 66825 transitions. [2024-12-02 06:07:42,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.0) internal successors, (292), 3 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:42,363 INFO L276 IsEmpty]: Start isEmpty. Operand 64714 states and 66825 transitions. [2024-12-02 06:07:42,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 586 [2024-12-02 06:07:42,372 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:07:42,372 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:07:42,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-12-02 06:07:42,372 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:07:42,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:07:42,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1599764109, now seen corresponding path program 1 times [2024-12-02 06:07:42,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:07:42,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760820922] [2024-12-02 06:07:42,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:07:42,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:07:42,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:07:43,483 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 636 proven. 200 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2024-12-02 06:07:43,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:07:43,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760820922] [2024-12-02 06:07:43,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760820922] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:07:43,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [483834454] [2024-12-02 06:07:43,484 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:07:43,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:07:43,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:07:43,485 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:07:43,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-12-02 06:07:43,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:07:43,773 INFO L256 TraceCheckSpWp]: Trace formula consists of 885 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 06:07:43,777 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:07:44,229 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 778 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2024-12-02 06:07:44,230 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:07:44,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [483834454] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:07:44,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:07:44,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-12-02 06:07:44,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172150372] [2024-12-02 06:07:44,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:07:44,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:07:44,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:07:44,231 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:07:44,231 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 06:07:44,231 INFO L87 Difference]: Start difference. First operand 64714 states and 66825 transitions. Second operand has 4 states, 4 states have (on average 101.5) internal successors, (406), 3 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:45,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:07:45,080 INFO L93 Difference]: Finished difference Result 162614 states and 167992 transitions. [2024-12-02 06:07:45,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:07:45,080 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 101.5) internal successors, (406), 3 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 585 [2024-12-02 06:07:45,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:07:45,147 INFO L225 Difference]: With dead ends: 162614 [2024-12-02 06:07:45,147 INFO L226 Difference]: Without dead ends: 97496 [2024-12-02 06:07:45,175 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 588 GetRequests, 583 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 06:07:45,175 INFO L435 NwaCegarLoop]: 239 mSDtfsCounter, 225 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 06:07:45,175 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 482 Invalid, 649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 06:07:45,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97496 states. [2024-12-02 06:07:46,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97496 to 86899. [2024-12-02 06:07:46,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86899 states, 86898 states have (on average 1.0345117263918617) internal successors, (89897), 86898 states have internal predecessors, (89897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:46,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86899 states to 86899 states and 89897 transitions. [2024-12-02 06:07:46,137 INFO L78 Accepts]: Start accepts. Automaton has 86899 states and 89897 transitions. Word has length 585 [2024-12-02 06:07:46,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:07:46,137 INFO L471 AbstractCegarLoop]: Abstraction has 86899 states and 89897 transitions. [2024-12-02 06:07:46,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 101.5) internal successors, (406), 3 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:46,138 INFO L276 IsEmpty]: Start isEmpty. Operand 86899 states and 89897 transitions. [2024-12-02 06:07:46,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 592 [2024-12-02 06:07:46,147 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:07:46,147 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:07:46,153 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-12-02 06:07:46,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:07:46,348 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:07:46,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:07:46,348 INFO L85 PathProgramCache]: Analyzing trace with hash -602344406, now seen corresponding path program 1 times [2024-12-02 06:07:46,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:07:46,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537639879] [2024-12-02 06:07:46,348 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:07:46,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:07:46,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:07:46,974 INFO L134 CoverageAnalysis]: Checked inductivity of 1058 backedges. 529 proven. 292 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-12-02 06:07:46,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:07:46,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537639879] [2024-12-02 06:07:46,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537639879] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:07:46,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1921485761] [2024-12-02 06:07:46,974 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:07:46,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:07:46,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:07:46,976 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:07:46,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-12-02 06:07:47,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:07:47,237 INFO L256 TraceCheckSpWp]: Trace formula consists of 912 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 06:07:47,242 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:07:47,604 INFO L134 CoverageAnalysis]: Checked inductivity of 1058 backedges. 562 proven. 0 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-12-02 06:07:47,604 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:07:47,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1921485761] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:07:47,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:07:47,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-12-02 06:07:47,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158362605] [2024-12-02 06:07:47,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:07:47,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:07:47,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:07:47,606 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:07:47,606 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:07:47,606 INFO L87 Difference]: Start difference. First operand 86899 states and 89897 transitions. Second operand has 4 states, 4 states have (on average 83.0) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:48,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:07:48,589 INFO L93 Difference]: Finished difference Result 201438 states and 208424 transitions. [2024-12-02 06:07:48,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:07:48,589 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 83.0) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 591 [2024-12-02 06:07:48,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:07:48,677 INFO L225 Difference]: With dead ends: 201438 [2024-12-02 06:07:48,677 INFO L226 Difference]: Without dead ends: 113323 [2024-12-02 06:07:48,714 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 594 GetRequests, 590 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:07:48,715 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 328 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 06:07:48,715 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 252 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 06:07:48,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113323 states. [2024-12-02 06:07:49,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113323 to 104789. [2024-12-02 06:07:49,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104789 states, 104788 states have (on average 1.0354811619651105) internal successors, (108506), 104788 states have internal predecessors, (108506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:49,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104789 states to 104789 states and 108506 transitions. [2024-12-02 06:07:49,651 INFO L78 Accepts]: Start accepts. Automaton has 104789 states and 108506 transitions. Word has length 591 [2024-12-02 06:07:49,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:07:49,652 INFO L471 AbstractCegarLoop]: Abstraction has 104789 states and 108506 transitions. [2024-12-02 06:07:49,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.0) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:49,652 INFO L276 IsEmpty]: Start isEmpty. Operand 104789 states and 108506 transitions. [2024-12-02 06:07:49,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 630 [2024-12-02 06:07:49,668 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:07:49,669 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:07:49,675 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-12-02 06:07:49,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:07:49,869 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:07:49,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:07:49,869 INFO L85 PathProgramCache]: Analyzing trace with hash -755058636, now seen corresponding path program 1 times [2024-12-02 06:07:49,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:07:49,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629278975] [2024-12-02 06:07:49,870 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:07:49,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:07:49,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:07:50,521 INFO L134 CoverageAnalysis]: Checked inductivity of 1215 backedges. 883 proven. 224 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-12-02 06:07:50,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:07:50,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629278975] [2024-12-02 06:07:50,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629278975] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:07:50,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1732170010] [2024-12-02 06:07:50,522 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:07:50,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:07:50,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:07:50,523 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:07:50,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-12-02 06:07:50,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:07:50,925 INFO L256 TraceCheckSpWp]: Trace formula consists of 946 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 06:07:50,929 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:07:51,143 INFO L134 CoverageAnalysis]: Checked inductivity of 1215 backedges. 1012 proven. 0 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2024-12-02 06:07:51,143 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:07:51,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1732170010] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:07:51,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:07:51,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2024-12-02 06:07:51,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554436678] [2024-12-02 06:07:51,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:07:51,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:07:51,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:07:51,144 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:07:51,144 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-12-02 06:07:51,144 INFO L87 Difference]: Start difference. First operand 104789 states and 108506 transitions. Second operand has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:52,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:07:52,170 INFO L93 Difference]: Finished difference Result 268979 states and 278613 transitions. [2024-12-02 06:07:52,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:07:52,170 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 629 [2024-12-02 06:07:52,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:07:52,288 INFO L225 Difference]: With dead ends: 268979 [2024-12-02 06:07:52,288 INFO L226 Difference]: Without dead ends: 164192 [2024-12-02 06:07:52,334 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 633 GetRequests, 628 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-12-02 06:07:52,335 INFO L435 NwaCegarLoop]: 235 mSDtfsCounter, 384 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 06:07:52,335 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 465 Invalid, 607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 06:07:52,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164192 states. [2024-12-02 06:07:53,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164192 to 116197. [2024-12-02 06:07:53,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116197 states, 116196 states have (on average 1.0373420771799373) internal successors, (120535), 116196 states have internal predecessors, (120535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:53,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116197 states to 116197 states and 120535 transitions. [2024-12-02 06:07:53,537 INFO L78 Accepts]: Start accepts. Automaton has 116197 states and 120535 transitions. Word has length 629 [2024-12-02 06:07:53,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:07:53,537 INFO L471 AbstractCegarLoop]: Abstraction has 116197 states and 120535 transitions. [2024-12-02 06:07:53,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:53,537 INFO L276 IsEmpty]: Start isEmpty. Operand 116197 states and 120535 transitions. [2024-12-02 06:07:53,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 677 [2024-12-02 06:07:53,550 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:07:53,551 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:07:53,557 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-12-02 06:07:53,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-12-02 06:07:53,751 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:07:53,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:07:53,752 INFO L85 PathProgramCache]: Analyzing trace with hash 178792119, now seen corresponding path program 1 times [2024-12-02 06:07:53,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:07:53,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505759078] [2024-12-02 06:07:53,752 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:07:53,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:07:53,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:07:54,419 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 791 proven. 0 refuted. 0 times theorem prover too weak. 509 trivial. 0 not checked. [2024-12-02 06:07:54,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:07:54,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505759078] [2024-12-02 06:07:54,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505759078] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:07:54,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:07:54,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 06:07:54,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40854009] [2024-12-02 06:07:54,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:07:54,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:07:54,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:07:54,420 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:07:54,420 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:07:54,421 INFO L87 Difference]: Start difference. First operand 116197 states and 120535 transitions. Second operand has 3 states, 3 states have (on average 102.0) internal successors, (306), 2 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:55,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:07:55,537 INFO L93 Difference]: Finished difference Result 320707 states and 332908 transitions. [2024-12-02 06:07:55,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:07:55,537 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 2 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 676 [2024-12-02 06:07:55,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:07:55,716 INFO L225 Difference]: With dead ends: 320707 [2024-12-02 06:07:55,716 INFO L226 Difference]: Without dead ends: 203700 [2024-12-02 06:07:55,770 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 06:07:55,771 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 125 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 06:07:55,771 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 60 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 06:07:55,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203700 states. [2024-12-02 06:07:57,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203700 to 188267. [2024-12-02 06:07:57,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188267 states, 188266 states have (on average 1.0406871129147057) internal successors, (195926), 188266 states have internal predecessors, (195926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:57,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188267 states to 188267 states and 195926 transitions. [2024-12-02 06:07:57,728 INFO L78 Accepts]: Start accepts. Automaton has 188267 states and 195926 transitions. Word has length 676 [2024-12-02 06:07:57,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:07:57,728 INFO L471 AbstractCegarLoop]: Abstraction has 188267 states and 195926 transitions. [2024-12-02 06:07:57,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 2 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:07:57,728 INFO L276 IsEmpty]: Start isEmpty. Operand 188267 states and 195926 transitions. [2024-12-02 06:07:57,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 805 [2024-12-02 06:07:57,750 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:07:57,750 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:07:57,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-12-02 06:07:57,750 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:07:57,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:07:57,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1007645066, now seen corresponding path program 1 times [2024-12-02 06:07:57,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:07:57,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125360947] [2024-12-02 06:07:57,751 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:07:57,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:07:57,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:08:00,391 INFO L134 CoverageAnalysis]: Checked inductivity of 2625 backedges. 1255 proven. 143 refuted. 0 times theorem prover too weak. 1227 trivial. 0 not checked. [2024-12-02 06:08:00,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:08:00,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125360947] [2024-12-02 06:08:00,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125360947] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:08:00,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1513332944] [2024-12-02 06:08:00,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:08:00,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:08:00,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:08:00,393 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:08:00,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-12-02 06:08:00,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:08:00,741 INFO L256 TraceCheckSpWp]: Trace formula consists of 1330 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 06:08:00,746 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:08:01,124 INFO L134 CoverageAnalysis]: Checked inductivity of 2625 backedges. 1804 proven. 0 refuted. 0 times theorem prover too weak. 821 trivial. 0 not checked. [2024-12-02 06:08:01,124 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:08:01,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1513332944] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:08:01,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:08:01,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 10 [2024-12-02 06:08:01,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954928845] [2024-12-02 06:08:01,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:08:01,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:08:01,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:08:01,126 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:08:01,126 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-12-02 06:08:01,126 INFO L87 Difference]: Start difference. First operand 188267 states and 195926 transitions. Second operand has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:08:02,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:08:02,261 INFO L93 Difference]: Finished difference Result 378375 states and 394368 transitions. [2024-12-02 06:08:02,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:08:02,261 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 804 [2024-12-02 06:08:02,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:08:02,409 INFO L225 Difference]: With dead ends: 378375 [2024-12-02 06:08:02,409 INFO L226 Difference]: Without dead ends: 186862 [2024-12-02 06:08:02,480 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 811 GetRequests, 803 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-12-02 06:08:02,480 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 159 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 06:08:02,480 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 82 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 06:08:02,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186862 states. [2024-12-02 06:08:04,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186862 to 186854. [2024-12-02 06:08:04,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186854 states, 186853 states have (on average 1.0398869699710467) internal successors, (194306), 186853 states have internal predecessors, (194306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:08:04,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186854 states to 186854 states and 194306 transitions. [2024-12-02 06:08:04,378 INFO L78 Accepts]: Start accepts. Automaton has 186854 states and 194306 transitions. Word has length 804 [2024-12-02 06:08:04,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:08:04,378 INFO L471 AbstractCegarLoop]: Abstraction has 186854 states and 194306 transitions. [2024-12-02 06:08:04,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:08:04,378 INFO L276 IsEmpty]: Start isEmpty. Operand 186854 states and 194306 transitions. [2024-12-02 06:08:04,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 947 [2024-12-02 06:08:04,416 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:08:04,416 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:08:04,422 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-12-02 06:08:04,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:08:04,616 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:08:04,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:08:04,617 INFO L85 PathProgramCache]: Analyzing trace with hash 2057137588, now seen corresponding path program 1 times [2024-12-02 06:08:04,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:08:04,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167790428] [2024-12-02 06:08:04,617 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:08:04,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:08:04,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:08:05,588 INFO L134 CoverageAnalysis]: Checked inductivity of 3108 backedges. 1194 proven. 0 refuted. 0 times theorem prover too weak. 1914 trivial. 0 not checked. [2024-12-02 06:08:05,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:08:05,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167790428] [2024-12-02 06:08:05,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167790428] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:08:05,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:08:05,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 06:08:05,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099116685] [2024-12-02 06:08:05,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:08:05,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:08:05,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:08:05,589 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:08:05,589 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:08:05,589 INFO L87 Difference]: Start difference. First operand 186854 states and 194306 transitions. Second operand has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 2 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:08:06,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:08:06,373 INFO L93 Difference]: Finished difference Result 231198 states and 240223 transitions. [2024-12-02 06:08:06,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:08:06,374 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 2 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 946 [2024-12-02 06:08:06,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:08:06,406 INFO L225 Difference]: With dead ends: 231198 [2024-12-02 06:08:06,406 INFO L226 Difference]: Without dead ends: 37038 [2024-12-02 06:08:06,456 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 06:08:06,456 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 164 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:08:06,457 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 25 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 06:08:06,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37038 states. [2024-12-02 06:08:06,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37038 to 34797. [2024-12-02 06:08:06,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34797 states, 34796 states have (on average 1.0332509483848717) internal successors, (35953), 34796 states have internal predecessors, (35953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:08:06,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34797 states to 34797 states and 35953 transitions. [2024-12-02 06:08:06,928 INFO L78 Accepts]: Start accepts. Automaton has 34797 states and 35953 transitions. Word has length 946 [2024-12-02 06:08:06,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:08:06,929 INFO L471 AbstractCegarLoop]: Abstraction has 34797 states and 35953 transitions. [2024-12-02 06:08:06,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 2 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:08:06,929 INFO L276 IsEmpty]: Start isEmpty. Operand 34797 states and 35953 transitions. [2024-12-02 06:08:06,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 976 [2024-12-02 06:08:06,961 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:08:06,961 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:08:06,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-12-02 06:08:06,961 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:08:06,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:08:06,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1117531812, now seen corresponding path program 1 times [2024-12-02 06:08:06,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:08:06,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522282107] [2024-12-02 06:08:06,962 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:08:06,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:08:07,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:08:08,082 INFO L134 CoverageAnalysis]: Checked inductivity of 3297 backedges. 1700 proven. 0 refuted. 0 times theorem prover too weak. 1597 trivial. 0 not checked. [2024-12-02 06:08:08,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:08:08,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522282107] [2024-12-02 06:08:08,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522282107] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:08:08,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:08:08,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:08:08,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765342551] [2024-12-02 06:08:08,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:08:08,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:08:08,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:08:08,084 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:08:08,084 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:08:08,084 INFO L87 Difference]: Start difference. First operand 34797 states and 35953 transitions. Second operand has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:08:08,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:08:08,774 INFO L93 Difference]: Finished difference Result 73466 states and 75890 transitions. [2024-12-02 06:08:08,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:08:08,774 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 975 [2024-12-02 06:08:08,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:08:08,798 INFO L225 Difference]: With dead ends: 73466 [2024-12-02 06:08:08,798 INFO L226 Difference]: Without dead ends: 38671 [2024-12-02 06:08:08,810 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 06:08:08,811 INFO L435 NwaCegarLoop]: 264 mSDtfsCounter, 135 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 06:08:08,811 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 282 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 06:08:08,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38671 states. [2024-12-02 06:08:09,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38671 to 36431. [2024-12-02 06:08:09,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36431 states, 36430 states have (on average 1.0334339829810595) internal successors, (37648), 36430 states have internal predecessors, (37648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:08:09,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36431 states to 36431 states and 37648 transitions. [2024-12-02 06:08:09,123 INFO L78 Accepts]: Start accepts. Automaton has 36431 states and 37648 transitions. Word has length 975 [2024-12-02 06:08:09,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:08:09,123 INFO L471 AbstractCegarLoop]: Abstraction has 36431 states and 37648 transitions. [2024-12-02 06:08:09,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:08:09,123 INFO L276 IsEmpty]: Start isEmpty. Operand 36431 states and 37648 transitions. [2024-12-02 06:08:09,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 996 [2024-12-02 06:08:09,142 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:08:09,142 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:08:09,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-12-02 06:08:09,142 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:08:09,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:08:09,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1086162611, now seen corresponding path program 1 times [2024-12-02 06:08:09,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:08:09,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247418623] [2024-12-02 06:08:09,143 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:08:09,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:08:09,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:08:09,775 INFO L134 CoverageAnalysis]: Checked inductivity of 3497 backedges. 1251 proven. 0 refuted. 0 times theorem prover too weak. 2246 trivial. 0 not checked. [2024-12-02 06:08:09,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:08:09,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247418623] [2024-12-02 06:08:09,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247418623] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:08:09,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:08:09,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 06:08:09,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561214891] [2024-12-02 06:08:09,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:08:09,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:08:09,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:08:09,777 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:08:09,777 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:08:09,777 INFO L87 Difference]: Start difference. First operand 36431 states and 37648 transitions. Second operand has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 2 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:08:10,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:08:10,115 INFO L93 Difference]: Finished difference Result 72857 states and 75291 transitions. [2024-12-02 06:08:10,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:08:10,115 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 2 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 995 [2024-12-02 06:08:10,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:08:10,138 INFO L225 Difference]: With dead ends: 72857 [2024-12-02 06:08:10,138 INFO L226 Difference]: Without dead ends: 36428 [2024-12-02 06:08:10,152 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 06:08:10,152 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 169 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:08:10,152 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 24 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 06:08:10,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36428 states. [2024-12-02 06:08:10,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36428 to 36428. [2024-12-02 06:08:10,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36428 states, 36427 states have (on average 1.033299475663656) internal successors, (37640), 36427 states have internal predecessors, (37640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:08:10,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36428 states to 36428 states and 37640 transitions. [2024-12-02 06:08:10,583 INFO L78 Accepts]: Start accepts. Automaton has 36428 states and 37640 transitions. Word has length 995 [2024-12-02 06:08:10,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:08:10,583 INFO L471 AbstractCegarLoop]: Abstraction has 36428 states and 37640 transitions. [2024-12-02 06:08:10,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 2 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:08:10,583 INFO L276 IsEmpty]: Start isEmpty. Operand 36428 states and 37640 transitions. [2024-12-02 06:08:10,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1010 [2024-12-02 06:08:10,601 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:08:10,601 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:08:10,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-12-02 06:08:10,601 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:08:10,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:08:10,602 INFO L85 PathProgramCache]: Analyzing trace with hash -801286693, now seen corresponding path program 2 times [2024-12-02 06:08:10,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:08:10,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218176659] [2024-12-02 06:08:10,602 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 06:08:10,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:08:10,753 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 06:08:10,753 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 06:08:13,890 INFO L134 CoverageAnalysis]: Checked inductivity of 3646 backedges. 1546 proven. 143 refuted. 0 times theorem prover too weak. 1957 trivial. 0 not checked. [2024-12-02 06:08:13,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:08:13,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218176659] [2024-12-02 06:08:13,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218176659] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:08:13,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1186941690] [2024-12-02 06:08:13,891 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 06:08:13,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:08:13,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:08:13,892 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:08:13,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-12-02 06:08:14,361 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 06:08:14,362 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 06:08:14,367 INFO L256 TraceCheckSpWp]: Trace formula consists of 1581 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 06:08:14,375 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:08:14,594 INFO L134 CoverageAnalysis]: Checked inductivity of 3646 backedges. 2625 proven. 0 refuted. 0 times theorem prover too weak. 1021 trivial. 0 not checked. [2024-12-02 06:08:14,594 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:08:14,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1186941690] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:08:14,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:08:14,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2024-12-02 06:08:14,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882123321] [2024-12-02 06:08:14,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:08:14,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:08:14,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:08:14,595 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:08:14,595 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-12-02 06:08:14,595 INFO L87 Difference]: Start difference. First operand 36428 states and 37640 transitions. Second operand has 3 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:08:14,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:08:14,895 INFO L93 Difference]: Finished difference Result 85860 states and 88638 transitions. [2024-12-02 06:08:14,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:08:14,895 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1009 [2024-12-02 06:08:14,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:08:14,926 INFO L225 Difference]: With dead ends: 85860 [2024-12-02 06:08:14,926 INFO L226 Difference]: Without dead ends: 49028 [2024-12-02 06:08:14,942 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1015 GetRequests, 1008 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-12-02 06:08:14,943 INFO L435 NwaCegarLoop]: 461 mSDtfsCounter, 122 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:08:14,943 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 665 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:08:14,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49028 states. [2024-12-02 06:08:15,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49028 to 48013. [2024-12-02 06:08:15,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48013 states, 48012 states have (on average 1.0302424393901524) internal successors, (49464), 48012 states have internal predecessors, (49464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:08:15,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48013 states to 48013 states and 49464 transitions. [2024-12-02 06:08:15,428 INFO L78 Accepts]: Start accepts. Automaton has 48013 states and 49464 transitions. Word has length 1009 [2024-12-02 06:08:15,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:08:15,429 INFO L471 AbstractCegarLoop]: Abstraction has 48013 states and 49464 transitions. [2024-12-02 06:08:15,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:08:15,429 INFO L276 IsEmpty]: Start isEmpty. Operand 48013 states and 49464 transitions. [2024-12-02 06:08:15,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1039 [2024-12-02 06:08:15,459 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:08:15,460 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:08:15,467 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-12-02 06:08:15,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:08:15,661 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:08:15,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:08:15,662 INFO L85 PathProgramCache]: Analyzing trace with hash 835999790, now seen corresponding path program 1 times [2024-12-02 06:08:15,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:08:15,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603540857] [2024-12-02 06:08:15,662 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:08:15,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:08:15,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:08:18,891 INFO L134 CoverageAnalysis]: Checked inductivity of 3809 backedges. 1578 proven. 143 refuted. 0 times theorem prover too weak. 2088 trivial. 0 not checked. [2024-12-02 06:08:18,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:08:18,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603540857] [2024-12-02 06:08:18,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603540857] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:08:18,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [335451883] [2024-12-02 06:08:18,891 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:08:18,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:08:18,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:08:18,892 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:08:18,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-12-02 06:08:19,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:08:19,318 INFO L256 TraceCheckSpWp]: Trace formula consists of 1606 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 06:08:19,323 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:08:19,468 INFO L134 CoverageAnalysis]: Checked inductivity of 3809 backedges. 1842 proven. 0 refuted. 0 times theorem prover too weak. 1967 trivial. 0 not checked. [2024-12-02 06:08:19,468 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:08:19,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [335451883] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:08:19,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:08:19,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 10 [2024-12-02 06:08:19,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300624400] [2024-12-02 06:08:19,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:08:19,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:08:19,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:08:19,470 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:08:19,470 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-12-02 06:08:19,471 INFO L87 Difference]: Start difference. First operand 48013 states and 49464 transitions. Second operand has 3 states, 3 states have (on average 146.0) internal successors, (438), 3 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:08:19,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:08:19,826 INFO L93 Difference]: Finished difference Result 98468 states and 101480 transitions. [2024-12-02 06:08:19,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:08:19,827 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 146.0) internal successors, (438), 3 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1038 [2024-12-02 06:08:19,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:08:19,830 INFO L225 Difference]: With dead ends: 98468 [2024-12-02 06:08:19,830 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 06:08:19,849 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1045 GetRequests, 1037 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-12-02 06:08:19,849 INFO L435 NwaCegarLoop]: 438 mSDtfsCounter, 105 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:08:19,850 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 615 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 06:08:19,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 06:08:19,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 06:08:19,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:08:19,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 06:08:19,853 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1038 [2024-12-02 06:08:19,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:08:19,853 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 06:08:19,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 146.0) internal successors, (438), 3 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:08:19,853 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 06:08:19,853 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 06:08:19,856 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 06:08:19,866 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-12-02 06:08:20,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2024-12-02 06:08:20,059 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:08:20,060 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-12-02 06:10:22,522 WARN L286 SmtUtils]: Spent 2.04m on a formula simplification. DAG size of input: 1869 DAG size of output: 2503 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-12-02 06:11:08,167 WARN L286 SmtUtils]: Spent 45.62s on a formula simplification. DAG size of input: 2503 DAG size of output: 207 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-12-02 06:11:08,174 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 06:11:08,229 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 06:11:08 BoogieIcfgContainer [2024-12-02 06:11:08,229 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 06:11:08,230 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 06:11:08,230 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 06:11:08,230 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 06:11:08,231 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:06:37" (3/4) ... [2024-12-02 06:11:08,233 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 06:11:08,259 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-12-02 06:11:08,261 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-12-02 06:11:08,263 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-02 06:11:08,265 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 06:11:08,450 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 06:11:08,450 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 06:11:08,450 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 06:11:08,451 INFO L158 Benchmark]: Toolchain (without parser) took 273556.70ms. Allocated memory was 142.6MB in the beginning and 7.3GB in the end (delta: 7.1GB). Free memory was 112.7MB in the beginning and 3.9GB in the end (delta: -3.8GB). Peak memory consumption was 3.3GB. Max. memory is 16.1GB. [2024-12-02 06:11:08,451 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory is still 81.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 06:11:08,451 INFO L158 Benchmark]: CACSL2BoogieTranslator took 683.39ms. Allocated memory is still 142.6MB. Free memory was 112.5MB in the beginning and 102.2MB in the end (delta: 10.3MB). Peak memory consumption was 61.2MB. Max. memory is 16.1GB. [2024-12-02 06:11:08,451 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.78ms. Allocated memory is still 142.6MB. Free memory was 102.2MB in the beginning and 87.9MB in the end (delta: 14.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 06:11:08,451 INFO L158 Benchmark]: Boogie Preprocessor took 113.87ms. Allocated memory is still 142.6MB. Free memory was 87.9MB in the beginning and 75.9MB in the end (delta: 12.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 06:11:08,452 INFO L158 Benchmark]: RCFGBuilder took 1955.26ms. Allocated memory was 142.6MB in the beginning and 385.9MB in the end (delta: 243.3MB). Free memory was 75.9MB in the beginning and 205.5MB in the end (delta: -129.6MB). Peak memory consumption was 119.9MB. Max. memory is 16.1GB. [2024-12-02 06:11:08,452 INFO L158 Benchmark]: TraceAbstraction took 270487.77ms. Allocated memory was 385.9MB in the beginning and 7.3GB in the end (delta: 6.9GB). Free memory was 204.6MB in the beginning and 3.9GB in the end (delta: -3.7GB). Peak memory consumption was 5.9GB. Max. memory is 16.1GB. [2024-12-02 06:11:08,452 INFO L158 Benchmark]: Witness Printer took 220.38ms. Allocated memory is still 7.3GB. Free memory was 3.9GB in the beginning and 3.9GB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-12-02 06:11:08,453 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory is still 81.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 683.39ms. Allocated memory is still 142.6MB. Free memory was 112.5MB in the beginning and 102.2MB in the end (delta: 10.3MB). Peak memory consumption was 61.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.78ms. Allocated memory is still 142.6MB. Free memory was 102.2MB in the beginning and 87.9MB in the end (delta: 14.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 113.87ms. Allocated memory is still 142.6MB. Free memory was 87.9MB in the beginning and 75.9MB in the end (delta: 12.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * RCFGBuilder took 1955.26ms. Allocated memory was 142.6MB in the beginning and 385.9MB in the end (delta: 243.3MB). Free memory was 75.9MB in the beginning and 205.5MB in the end (delta: -129.6MB). Peak memory consumption was 119.9MB. Max. memory is 16.1GB. * TraceAbstraction took 270487.77ms. Allocated memory was 385.9MB in the beginning and 7.3GB in the end (delta: 6.9GB). Free memory was 204.6MB in the beginning and 3.9GB in the end (delta: -3.7GB). Peak memory consumption was 5.9GB. Max. memory is 16.1GB. * Witness Printer took 220.38ms. Allocated memory is still 7.3GB. Free memory was 3.9GB in the beginning and 3.9GB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1534]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 302 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 102.3s, OverallIterations: 43, TraceHistogramMax: 13, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.7s, AutomataDifference: 36.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9726 SdHoareTripleChecker+Valid, 23.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9726 mSDsluCounter, 12615 SdHoareTripleChecker+Invalid, 19.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3346 mSDsCounter, 3031 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22450 IncrementalHoareTripleChecker+Invalid, 25481 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3031 mSolverCounterUnsat, 9269 mSDtfsCounter, 22450 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9853 GetRequests, 9739 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=188267occurred in iteration=37, InterpolantAutomatonStates: 140, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 22.6s AutomataMinimizationTime, 43 MinimizatonAttempts, 215192 StatesRemovedByMinimization, 40 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.8s SsaConstructionTime, 4.2s SatisfiabilityAnalysisTime, 28.7s InterpolantComputationTime, 29133 NumberOfCodeBlocks, 29133 NumberOfCodeBlocksAsserted, 64 NumberOfCheckSat, 29071 ConstructedInterpolants, 0 QuantifiedInterpolants, 70507 SizeOfPredicates, 2 NumberOfNonLiveVariables, 16168 ConjunctsInSsa, 56 ConjunctsInUnsatCore, 62 InterpolantComputations, 43 PerfectInterpolantSequences, 53010/54942 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1668]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((a26 == 1) && (a20 <= 0)) && (a5 == 1)) && (a10 == 1)) && (a16 == 1)) && (((((((((a7 <= 0) && (a12 == 1)) && (2 <= a3)) && (a11 <= 0)) && (a0 == 1)) && (a4 <= 0)) && (a27 <= 0)) && (a6 <= 0)) || (((((((((a15 == 1) && (a7 <= 0)) && (a12 == 1)) && (2 <= a3)) && (a0 == 1)) && (a11 != 1)) && (a4 <= 0)) && (a27 <= 0)) && (a6 <= 0)))) && (a18 == 1)) || ((((((a26 == 1) && (a20 <= 0)) && (a5 == 1)) && (a10 == 1)) && (((((a3 <= 0) && (a12 <= 0)) && (a27 == 1)) && (a6 <= 0)) || (((((((a15 == 1) && (a11 == 1)) && (a3 == 1)) && (a12 <= 0)) && (a27 == 1)) && (a0 == 1)) && (a6 <= 0)))) && (a16 == 1))) || ((((((a26 == 1) && (a0 <= 0)) && (a5 == 1)) && (a3 == 1)) && (a6 == 1)) && (a27 == 1))) || ((((((((((((a7 <= 0) && (a20 <= 0)) && (2 == a3)) && (a5 == 1)) && (a10 == 1)) && (a16 == 1)) && (a11 == 1)) && (a6 == 1)) && (a12 <= 0)) && (a0 == 1)) && (a4 <= 0)) && (a27 <= 0))) || (((((((((a0 <= 0) && (a5 == 1)) && (a3 <= 0)) && (a16 == 1)) && (a26 <= 0)) && (a11 == 1)) && (a6 == 1)) && (a27 == 1)) && (a4 <= 0))) || (((((((((a26 == 1) && (a20 <= 0)) && (a5 == 1)) && (a10 == 1)) && (a16 == 1)) && (a23 <= 0)) && (((((((a7 <= 0) && (a3 == 1)) && (a11 <= 0)) && (a12 <= 0)) && (a0 == 1)) && (a6 <= 0)) || ((((((a15 == 1) && (a7 <= 0)) && (a3 == 1)) && (a12 <= 0)) && (a0 == 1)) && (a6 <= 0)))) && (a27 == 1)) && (a18 == 1))) || (((((((((((((((a15 == 1) && (a7 <= 0)) && (a26 == 1)) && (a5 == 1)) && (a10 == 1)) && (a3 <= 0)) && (a16 == 1)) && (a11 == 1)) && (a29 == 1)) && (a12 <= 0)) && (a0 == 1)) && (a4 <= 0)) && (a18 == 1)) && (a27 <= 0)) && (a1 <= 0))) || ((((((((a26 == 1) && (((((((((a7 <= 0) && (a23 <= 0)) && (a3 == 1)) && (a6 == 1)) && (a11 <= 0)) && (a12 <= 0)) && (a4 <= 0)) && (a27 <= 0)) || ((((((((a15 == 1) && (a7 <= 0)) && (a23 <= 0)) && (a3 == 1)) && (a6 == 1)) && (a12 <= 0)) && (a4 <= 0)) && (a27 <= 0)))) && (a5 == 1)) && (a10 == 1)) && (a16 == 1)) && (a29 == 1)) && (a11 != 1)) && (a18 == 1))) || ((((((((a7 <= 0) && (a26 == 1)) && (a5 == 1)) && (a10 == 1)) && (a3 == 1)) && (a6 == 1)) && (a12 <= 0)) && (a27 == 1))) || (((((((a5 == 1) && (a10 == 1)) && (a16 == 1)) && (a23 <= 0)) && ((((((((a15 == 1) && (a7 <= 0)) && (2 <= a3)) && (a6 == 1)) && (a11 <= 0)) && (a12 <= 0)) && (a0 == 1)) || (((((((a7 <= 0) && (2 <= a3)) && (a26 <= 0)) && (a6 == 1)) && (a11 <= 0)) && (a12 <= 0)) && (a0 == 1)))) && (a27 == 1)) && (a18 == 1))) || ((((((((a15 == 1) && (a26 == 1)) && (a0 <= 0)) && (a5 == 1)) && (a16 == 1)) && (a3 == 1)) && (a27 == 1)) && (a6 <= 0))) || (((((((((((((a7 <= 0) && (a26 == 1)) && (a5 == 1)) && (a12 == 1)) && (a10 == 1)) && (a16 == 1)) && (a23 <= 0)) && (a6 == 1)) && (a11 <= 0)) && (a29 == 1)) && (a27 == 1)) && (a0 == 1)) && (a18 == 1))) || (((((((((((((((a7 <= 0) && (a26 == 1)) && (a20 <= 0)) && (2 == a3)) && (a5 == 1)) && (a10 == 1)) && (a16 == 1)) && (a11 == 1)) && (a23 <= 0)) && (a6 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&& (a12 <= 0)) && (a27 == 1)) && (a0 == 1)) && (a6 <= 0))))) || ((((((((((((((a7 <= 0) && (a20 <= 0)) && (a5 == 1)) && (a10 == 1)) && (2 <= a3)) && (a16 == 1)) && (a26 <= 0)) && (a11 == 1)) && (a23 <= 0)) && (a12 <= 0)) && (a27 == 1)) && (a0 == 1)) && (a18 == 1)) && (a6 <= 0))) || (((((((((a15 == 1) && (a26 == 1)) && (a5 == 1)) && (a12 == 1)) && (a16 == 1)) && (a3 == 1)) && (a6 == 1)) && (a27 == 1)) && (a0 == 1))) || (((((((((a26 == 1) && (a5 == 1)) && (a12 == 1)) && (a16 == 1)) && (a11 == 1)) && (a3 == 1)) && (a27 == 1)) && (a0 == 1)) && (a6 <= 0))) || ((((((((a26 == 1) && (a0 <= 0)) && (a5 == 1)) && (a3 <= 0)) && (a16 == 1)) && (a6 == 1)) && (a12 != 1)) && (a27 <= 0))) || ((((((a26 == 1) && (a5 == 1)) && (a3 == 1)) && (a6 == 1)) && (a11 <= 0)) && (a27 == 1))) || (((((((((a15 == 1) && (a5 == 1)) && (a12 == 1)) && (a3 <= 0)) && (a16 == 1)) && (a26 <= 0)) && (a11 != 1)) && (a27 <= 0)) && (a6 <= 0))) || (((((((((((((((a15 == 1) && (a7 <= 0)) && (a5 == 1)) && (a12 == 1)) && (a10 == 1)) && (2 <= a3)) && (a16 == 1)) && (a26 <= 0)) && (a23 <= 0)) && (a11 <= 0)) && (a27 == 1)) && (a0 == 1)) && (a18 == 1)) && (a6 <= 0)) && (a1 <= 0))) || (((((((a5 == 1) && (a12 == 1)) && (a3 <= 0)) && (a26 <= 0)) && (a11 <= 0)) && (a27 <= 0)) && (a6 <= 0))) || (((((((((((((2 == a3) && (a5 == 1)) && (a10 == 1)) && (a26 != 1)) && (a16 == 1)) && (((((a7 <= 0) && (a12 == 1)) && (a26 <= 0)) && (a0 == 1)) || ((((a15 == 1) && (a7 <= 0)) && (a12 == 1)) && (a0 == 1)))) && (a11 == 1)) && (a17 <= 0)) && (a23 <= 0)) && (a6 == 1)) && (a29 == 1)) && (a27 == 1)) && (a18 == 1))) || ((((((((a26 == 1) && (a20 <= 0)) && (a5 == 1)) && (a10 == 1)) && (a3 == 1)) && (a6 == 1)) && (a12 <= 0)) && (a27 == 1))) || ((((((((((((a15 == 1) && (a26 == 1)) && (a5 == 1)) && (a3 <= 0)) && (a16 == 1)) && (a11 == 1)) && (a23 <= 0)) && (a29 == 1)) && (a12 <= 0)) && (a0 == 1)) && (a27 <= 0)) && (a6 <= 0))) || ((((((((((((((a7 <= 0) && (a20 <= 0)) && (2 == a3)) && (a5 == 1)) && (a10 == 1)) && (a16 == 1)) && (a11 == 1)) && (a23 <= 0)) && (a6 == 1)) && (a29 == 1)) && (a12 <= 0)) && (a0 == 1)) && (a18 == 1)) && (a27 <= 0))) || (((((((((((((a7 <= 0) && (a5 == 1)) && (a12 == 1)) && (a10 == 1)) && (a16 == 1)) && (a26 <= 0)) && (a23 <= 0)) && (a3 == 1)) && (a6 == 1)) && (a11 <= 0)) && (a29 == 1)) && (a0 == 1)) && (a27 <= 0))) || ((((((((((((a15 == 1) && (a26 == 1)) && (a5 == 1)) && (a16 == 1)) && (a11 == 1)) && (a3 == 1)) && (a12 <= 0)) && (a0 == 1)) && (a27 <= 0)) || (((((((((a26 == 1) && (a5 == 1)) && (a16 == 1)) && (a11 == 1)) && (a23 <= 0)) && (a3 == 1)) && (a12 <= 0)) && (a0 == 1)) && (a27 <= 0))) && (a29 == 1)) && (a6 <= 0))) RESULT: Ultimate proved your program to be correct! [2024-12-02 06:11:08,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6673e4e7-0062-46e4-a895-12bdecf785ae/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE