./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label03.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_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/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_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label03.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/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_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/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 6cb8ee599d957b44e84b6deda03837f10d12ce4870b06e5310d491ec68c724f7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 11:40:18,237 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 11:40:18,286 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 11:40:18,289 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 11:40:18,290 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 11:40:18,309 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 11:40:18,309 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 11:40:18,309 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 11:40:18,310 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 11:40:18,310 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 11:40:18,310 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 11:40:18,310 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 11:40:18,310 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 11:40:18,310 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 11:40:18,310 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 11:40:18,311 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 11:40:18,311 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 11:40:18,311 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 11:40:18,311 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 11:40:18,311 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 11:40:18,311 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 11:40:18,311 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 11:40:18,311 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 11:40:18,311 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 11:40:18,311 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 11:40:18,312 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 11:40:18,312 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 11:40:18,312 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 11:40:18,312 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 11:40:18,312 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:40:18,312 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:40:18,312 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:40:18,312 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:40:18,312 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 11:40:18,312 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:40:18,313 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:40:18,313 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:40:18,313 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:40:18,313 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 11:40:18,313 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 11:40:18,313 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 11:40:18,313 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 11:40:18,313 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 11:40:18,313 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 11:40:18,314 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 11:40:18,314 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 11:40:18,314 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 11:40:18,314 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 11:40:18,314 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_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/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 -> 6cb8ee599d957b44e84b6deda03837f10d12ce4870b06e5310d491ec68c724f7 [2024-12-02 11:40:18,504 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 11:40:18,511 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 11:40:18,513 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 11:40:18,514 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 11:40:18,515 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 11:40:18,516 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label03.c [2024-12-02 11:40:21,101 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/data/56273cf50/d8e7cede3d504afa83f5cb12b51ae0c6/FLAG6c48b108e [2024-12-02 11:40:21,523 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 11:40:21,524 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label03.c [2024-12-02 11:40:21,550 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/data/56273cf50/d8e7cede3d504afa83f5cb12b51ae0c6/FLAG6c48b108e [2024-12-02 11:40:21,697 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/data/56273cf50/d8e7cede3d504afa83f5cb12b51ae0c6 [2024-12-02 11:40:21,700 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 11:40:21,702 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 11:40:21,703 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 11:40:21,703 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 11:40:21,708 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 11:40:21,709 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:40:21" (1/1) ... [2024-12-02 11:40:21,710 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d94b0a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:40:21, skipping insertion in model container [2024-12-02 11:40:21,710 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:40:21" (1/1) ... [2024-12-02 11:40:21,799 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 11:40:22,071 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_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label03.c[11640,11653] [2024-12-02 11:40:22,109 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_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label03.c[13977,13990] [2024-12-02 11:40:22,748 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:40:22,760 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 11:40:22,792 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_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label03.c[11640,11653] [2024-12-02 11:40:22,798 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_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label03.c[13977,13990] [2024-12-02 11:40:23,270 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:40:23,297 INFO L204 MainTranslator]: Completed translation [2024-12-02 11:40:23,298 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:40:23 WrapperNode [2024-12-02 11:40:23,298 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 11:40:23,298 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 11:40:23,298 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 11:40:23,299 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 11:40:23,303 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:40:23" (1/1) ... [2024-12-02 11:40:23,344 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:40:23" (1/1) ... [2024-12-02 11:40:23,642 INFO L138 Inliner]: procedures = 36, calls = 22, calls flagged for inlining = 17, calls inlined = 17, statements flattened = 5097 [2024-12-02 11:40:23,642 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 11:40:23,643 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 11:40:23,643 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 11:40:23,643 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 11:40:23,651 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:40:23" (1/1) ... [2024-12-02 11:40:23,652 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:40:23" (1/1) ... [2024-12-02 11:40:23,692 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:40:23" (1/1) ... [2024-12-02 11:40:23,839 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 11:40:23,839 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:40:23" (1/1) ... [2024-12-02 11:40:23,839 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:40:23" (1/1) ... [2024-12-02 11:40:23,957 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:40:23" (1/1) ... [2024-12-02 11:40:23,967 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:40:23" (1/1) ... [2024-12-02 11:40:23,994 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:40:23" (1/1) ... [2024-12-02 11:40:24,044 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:40:23" (1/1) ... [2024-12-02 11:40:24,066 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:40:23" (1/1) ... [2024-12-02 11:40:24,128 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 11:40:24,129 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 11:40:24,130 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 11:40:24,130 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 11:40:24,131 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:40:23" (1/1) ... [2024-12-02 11:40:24,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:40:24,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:40:24,161 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 11:40:24,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 11:40:24,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 11:40:24,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 11:40:24,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 11:40:24,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 11:40:24,298 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 11:40:24,300 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 11:40:28,688 INFO L? ?]: Removed 744 outVars from TransFormulas that were not future-live. [2024-12-02 11:40:28,688 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 11:40:28,715 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 11:40:28,715 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-12-02 11:40:28,716 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:40:28 BoogieIcfgContainer [2024-12-02 11:40:28,716 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 11:40:28,718 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 11:40:28,718 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 11:40:28,721 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 11:40:28,721 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:40:21" (1/3) ... [2024-12-02 11:40:28,722 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5694b6a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:40:28, skipping insertion in model container [2024-12-02 11:40:28,722 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:40:23" (2/3) ... [2024-12-02 11:40:28,722 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5694b6a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:40:28, skipping insertion in model container [2024-12-02 11:40:28,722 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:40:28" (3/3) ... [2024-12-02 11:40:28,723 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label03.c [2024-12-02 11:40:28,737 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 11:40:28,739 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label03.c that has 1 procedures, 900 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-12-02 11:40:28,820 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:40:28,830 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;@5beb9821, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:40:28,830 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-02 11:40:28,837 INFO L276 IsEmpty]: Start isEmpty. Operand has 900 states, 897 states have (on average 1.9041248606465997) internal successors, (1708), 899 states have internal predecessors, (1708), 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 11:40:28,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-12-02 11:40:28,842 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:40:28,842 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] [2024-12-02 11:40:28,843 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:40:28,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:40:28,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1702259077, now seen corresponding path program 1 times [2024-12-02 11:40:28,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:40:28,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151632605] [2024-12-02 11:40:28,854 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:40:28,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:40:28,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:40:29,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:40:29,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:40:29,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151632605] [2024-12-02 11:40:29,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151632605] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:40:29,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:40:29,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 11:40:29,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379719532] [2024-12-02 11:40:29,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:40:29,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:40:29,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:40:29,124 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:40:29,125 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:40:29,127 INFO L87 Difference]: Start difference. First operand has 900 states, 897 states have (on average 1.9041248606465997) internal successors, (1708), 899 states have internal predecessors, (1708), 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 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 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 11:40:32,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:40:32,607 INFO L93 Difference]: Finished difference Result 2534 states and 4864 transitions. [2024-12-02 11:40:32,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:40:32,610 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 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 20 [2024-12-02 11:40:32,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:40:32,628 INFO L225 Difference]: With dead ends: 2534 [2024-12-02 11:40:32,628 INFO L226 Difference]: Without dead ends: 1585 [2024-12-02 11:40:32,633 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 11:40:32,636 INFO L435 NwaCegarLoop]: 655 mSDtfsCounter, 940 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 2337 mSolverCounterSat, 696 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 940 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 3033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 696 IncrementalHoareTripleChecker+Valid, 2337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:40:32,637 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [940 Valid, 666 Invalid, 3033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [696 Valid, 2337 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-12-02 11:40:32,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1585 states. [2024-12-02 11:40:32,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1585 to 1585. [2024-12-02 11:40:32,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1585 states, 1583 states have (on average 1.6133922931143398) internal successors, (2554), 1584 states have internal predecessors, (2554), 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 11:40:32,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1585 states to 1585 states and 2554 transitions. [2024-12-02 11:40:32,738 INFO L78 Accepts]: Start accepts. Automaton has 1585 states and 2554 transitions. Word has length 20 [2024-12-02 11:40:32,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:40:32,739 INFO L471 AbstractCegarLoop]: Abstraction has 1585 states and 2554 transitions. [2024-12-02 11:40:32,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 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 11:40:32,739 INFO L276 IsEmpty]: Start isEmpty. Operand 1585 states and 2554 transitions. [2024-12-02 11:40:32,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-12-02 11:40:32,740 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:40:32,740 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] [2024-12-02 11:40:32,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 11:40:32,741 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:40:32,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:40:32,741 INFO L85 PathProgramCache]: Analyzing trace with hash -768109886, now seen corresponding path program 1 times [2024-12-02 11:40:32,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:40:32,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929963308] [2024-12-02 11:40:32,742 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:40:32,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:40:32,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:40:32,954 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 11:40:32,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:40:32,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929963308] [2024-12-02 11:40:32,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929963308] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:40:32,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:40:32,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:40:32,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021110058] [2024-12-02 11:40:32,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:40:32,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:40:32,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:40:32,957 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:40:32,957 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:40:32,957 INFO L87 Difference]: Start difference. First operand 1585 states and 2554 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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 11:40:33,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:40:33,055 INFO L93 Difference]: Finished difference Result 1632 states and 2626 transitions. [2024-12-02 11:40:33,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:40:33,055 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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 25 [2024-12-02 11:40:33,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:40:33,063 INFO L225 Difference]: With dead ends: 1632 [2024-12-02 11:40:33,063 INFO L226 Difference]: Without dead ends: 1585 [2024-12-02 11:40:33,064 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:40:33,065 INFO L435 NwaCegarLoop]: 1573 mSDtfsCounter, 0 mSDsluCounter, 4683 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6256 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:40:33,065 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6256 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:40:33,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1585 states. [2024-12-02 11:40:33,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1585 to 1585. [2024-12-02 11:40:33,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1585 states, 1583 states have (on average 1.5938092229943146) internal successors, (2523), 1584 states have internal predecessors, (2523), 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 11:40:33,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1585 states to 1585 states and 2523 transitions. [2024-12-02 11:40:33,118 INFO L78 Accepts]: Start accepts. Automaton has 1585 states and 2523 transitions. Word has length 25 [2024-12-02 11:40:33,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:40:33,118 INFO L471 AbstractCegarLoop]: Abstraction has 1585 states and 2523 transitions. [2024-12-02 11:40:33,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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 11:40:33,118 INFO L276 IsEmpty]: Start isEmpty. Operand 1585 states and 2523 transitions. [2024-12-02 11:40:33,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-12-02 11:40:33,120 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:40:33,120 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:40:33,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 11:40:33,120 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:40:33,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:40:33,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1032471947, now seen corresponding path program 1 times [2024-12-02 11:40:33,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:40:33,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37677102] [2024-12-02 11:40:33,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:40:33,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:40:33,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:40:33,349 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 11:40:33,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:40:33,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37677102] [2024-12-02 11:40:33,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37677102] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:40:33,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:40:33,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 11:40:33,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960133304] [2024-12-02 11:40:33,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:40:33,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:40:33,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:40:33,350 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:40:33,350 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:40:33,351 INFO L87 Difference]: Start difference. First operand 1585 states and 2523 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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 11:40:33,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:40:33,639 INFO L93 Difference]: Finished difference Result 2015 states and 3203 transitions. [2024-12-02 11:40:33,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 11:40:33,640 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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 55 [2024-12-02 11:40:33,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:40:33,648 INFO L225 Difference]: With dead ends: 2015 [2024-12-02 11:40:33,648 INFO L226 Difference]: Without dead ends: 1972 [2024-12-02 11:40:33,650 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-12-02 11:40:33,650 INFO L435 NwaCegarLoop]: 1540 mSDtfsCounter, 7906 mSDsluCounter, 1485 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7906 SdHoareTripleChecker+Valid, 3025 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:40:33,651 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7906 Valid, 3025 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:40:33,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1972 states. [2024-12-02 11:40:33,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1972 to 1626. [2024-12-02 11:40:33,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1626 states, 1624 states have (on average 1.5935960591133005) internal successors, (2588), 1625 states have internal predecessors, (2588), 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 11:40:33,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1626 states to 1626 states and 2588 transitions. [2024-12-02 11:40:33,711 INFO L78 Accepts]: Start accepts. Automaton has 1626 states and 2588 transitions. Word has length 55 [2024-12-02 11:40:33,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:40:33,711 INFO L471 AbstractCegarLoop]: Abstraction has 1626 states and 2588 transitions. [2024-12-02 11:40:33,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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 11:40:33,712 INFO L276 IsEmpty]: Start isEmpty. Operand 1626 states and 2588 transitions. [2024-12-02 11:40:33,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-12-02 11:40:33,713 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:40:33,713 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] [2024-12-02 11:40:33,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 11:40:33,714 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:40:33,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:40:33,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1347601061, now seen corresponding path program 1 times [2024-12-02 11:40:33,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:40:33,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576586158] [2024-12-02 11:40:33,714 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:40:33,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:40:33,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:40:33,836 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 11:40:33,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:40:33,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576586158] [2024-12-02 11:40:33,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576586158] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:40:33,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:40:33,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:40:33,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252095661] [2024-12-02 11:40:33,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:40:33,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:40:33,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:40:33,838 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:40:33,838 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:40:33,838 INFO L87 Difference]: Start difference. First operand 1626 states and 2588 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 11:40:33,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:40:33,896 INFO L93 Difference]: Finished difference Result 1783 states and 2835 transitions. [2024-12-02 11:40:33,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:40:33,896 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 57 [2024-12-02 11:40:33,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:40:33,905 INFO L225 Difference]: With dead ends: 1783 [2024-12-02 11:40:33,905 INFO L226 Difference]: Without dead ends: 1699 [2024-12-02 11:40:33,906 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 11:40:33,907 INFO L435 NwaCegarLoop]: 1542 mSDtfsCounter, 1482 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1482 SdHoareTripleChecker+Valid, 1605 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:40:33,907 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1482 Valid, 1605 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:40:33,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1699 states. [2024-12-02 11:40:33,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1699 to 1697. [2024-12-02 11:40:33,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1697 states, 1695 states have (on average 1.591740412979351) internal successors, (2698), 1696 states have internal predecessors, (2698), 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 11:40:33,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1697 states to 1697 states and 2698 transitions. [2024-12-02 11:40:33,969 INFO L78 Accepts]: Start accepts. Automaton has 1697 states and 2698 transitions. Word has length 57 [2024-12-02 11:40:33,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:40:33,969 INFO L471 AbstractCegarLoop]: Abstraction has 1697 states and 2698 transitions. [2024-12-02 11:40:33,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 11:40:33,969 INFO L276 IsEmpty]: Start isEmpty. Operand 1697 states and 2698 transitions. [2024-12-02 11:40:33,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-12-02 11:40:33,971 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:40:33,971 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] [2024-12-02 11:40:33,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 11:40:33,971 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:40:33,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:40:33,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1281107549, now seen corresponding path program 1 times [2024-12-02 11:40:33,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:40:33,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009787591] [2024-12-02 11:40:33,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:40:33,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:40:34,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:40:34,322 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 11:40:34,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:40:34,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009787591] [2024-12-02 11:40:34,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009787591] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:40:34,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:40:34,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 11:40:34,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71578319] [2024-12-02 11:40:34,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:40:34,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:40:34,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:40:34,324 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:40:34,324 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:40:34,324 INFO L87 Difference]: Start difference. First operand 1697 states and 2698 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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 11:40:34,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:40:34,546 INFO L93 Difference]: Finished difference Result 1854 states and 2942 transitions. [2024-12-02 11:40:34,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 11:40:34,547 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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 57 [2024-12-02 11:40:34,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:40:34,555 INFO L225 Difference]: With dead ends: 1854 [2024-12-02 11:40:34,556 INFO L226 Difference]: Without dead ends: 1699 [2024-12-02 11:40:34,557 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-12-02 11:40:34,558 INFO L435 NwaCegarLoop]: 1537 mSDtfsCounter, 4479 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4479 SdHoareTripleChecker+Valid, 1797 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:40:34,558 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4479 Valid, 1797 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:40:34,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1699 states. [2024-12-02 11:40:34,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1699 to 1697. [2024-12-02 11:40:34,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1697 states, 1695 states have (on average 1.5905604719764013) internal successors, (2696), 1696 states have internal predecessors, (2696), 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 11:40:34,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1697 states to 1697 states and 2696 transitions. [2024-12-02 11:40:34,616 INFO L78 Accepts]: Start accepts. Automaton has 1697 states and 2696 transitions. Word has length 57 [2024-12-02 11:40:34,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:40:34,616 INFO L471 AbstractCegarLoop]: Abstraction has 1697 states and 2696 transitions. [2024-12-02 11:40:34,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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 11:40:34,616 INFO L276 IsEmpty]: Start isEmpty. Operand 1697 states and 2696 transitions. [2024-12-02 11:40:34,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-12-02 11:40:34,617 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:40:34,618 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] [2024-12-02 11:40:34,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 11:40:34,618 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:40:34,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:40:34,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1474351433, now seen corresponding path program 1 times [2024-12-02 11:40:34,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:40:34,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028463475] [2024-12-02 11:40:34,619 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:40:34,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:40:34,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:40:35,071 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 11:40:35,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:40:35,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028463475] [2024-12-02 11:40:35,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028463475] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:40:35,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:40:35,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 11:40:35,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134260081] [2024-12-02 11:40:35,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:40:35,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 11:40:35,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:40:35,073 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 11:40:35,073 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 11:40:35,073 INFO L87 Difference]: Start difference. First operand 1697 states and 2696 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 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 11:40:35,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:40:35,176 INFO L93 Difference]: Finished difference Result 1705 states and 2705 transitions. [2024-12-02 11:40:35,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 11:40:35,177 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 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 58 [2024-12-02 11:40:35,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:40:35,187 INFO L225 Difference]: With dead ends: 1705 [2024-12-02 11:40:35,187 INFO L226 Difference]: Without dead ends: 1703 [2024-12-02 11:40:35,188 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 11:40:35,190 INFO L435 NwaCegarLoop]: 1538 mSDtfsCounter, 0 mSDsluCounter, 9215 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10753 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:40:35,190 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10753 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:40:35,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1703 states. [2024-12-02 11:40:35,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1703 to 1703. [2024-12-02 11:40:35,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1703 states, 1701 states have (on average 1.5878894767783656) internal successors, (2701), 1702 states have internal predecessors, (2701), 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 11:40:35,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1703 states to 1703 states and 2701 transitions. [2024-12-02 11:40:35,239 INFO L78 Accepts]: Start accepts. Automaton has 1703 states and 2701 transitions. Word has length 58 [2024-12-02 11:40:35,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:40:35,240 INFO L471 AbstractCegarLoop]: Abstraction has 1703 states and 2701 transitions. [2024-12-02 11:40:35,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 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 11:40:35,240 INFO L276 IsEmpty]: Start isEmpty. Operand 1703 states and 2701 transitions. [2024-12-02 11:40:35,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-12-02 11:40:35,241 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:40:35,241 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] [2024-12-02 11:40:35,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 11:40:35,241 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:40:35,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:40:35,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1913192451, now seen corresponding path program 1 times [2024-12-02 11:40:35,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:40:35,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003532516] [2024-12-02 11:40:35,242 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:40:35,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:40:35,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:40:35,327 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 11:40:35,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:40:35,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003532516] [2024-12-02 11:40:35,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003532516] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:40:35,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:40:35,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:40:35,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732649984] [2024-12-02 11:40:35,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:40:35,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:40:35,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:40:35,328 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:40:35,328 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:40:35,329 INFO L87 Difference]: Start difference. First operand 1703 states and 2701 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 11:40:35,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:40:35,365 INFO L93 Difference]: Finished difference Result 1878 states and 2967 transitions. [2024-12-02 11:40:35,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:40:35,365 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 59 [2024-12-02 11:40:35,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:40:35,369 INFO L225 Difference]: With dead ends: 1878 [2024-12-02 11:40:35,370 INFO L226 Difference]: Without dead ends: 1788 [2024-12-02 11:40:35,370 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 11:40:35,371 INFO L435 NwaCegarLoop]: 1596 mSDtfsCounter, 1496 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 1665 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:40:35,371 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1496 Valid, 1665 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:40:35,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1788 states. [2024-12-02 11:40:35,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1788 to 1786. [2024-12-02 11:40:35,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1786 states, 1784 states have (on average 1.5835201793721974) internal successors, (2825), 1785 states have internal predecessors, (2825), 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 11:40:35,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1786 states to 1786 states and 2825 transitions. [2024-12-02 11:40:35,408 INFO L78 Accepts]: Start accepts. Automaton has 1786 states and 2825 transitions. Word has length 59 [2024-12-02 11:40:35,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:40:35,408 INFO L471 AbstractCegarLoop]: Abstraction has 1786 states and 2825 transitions. [2024-12-02 11:40:35,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 11:40:35,409 INFO L276 IsEmpty]: Start isEmpty. Operand 1786 states and 2825 transitions. [2024-12-02 11:40:35,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-12-02 11:40:35,409 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:40:35,409 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] [2024-12-02 11:40:35,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 11:40:35,410 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:40:35,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:40:35,410 INFO L85 PathProgramCache]: Analyzing trace with hash -2117918461, now seen corresponding path program 1 times [2024-12-02 11:40:35,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:40:35,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599083964] [2024-12-02 11:40:35,410 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:40:35,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:40:35,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:40:35,459 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 11:40:35,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:40:35,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599083964] [2024-12-02 11:40:35,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599083964] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:40:35,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:40:35,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:40:35,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032373007] [2024-12-02 11:40:35,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:40:35,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:40:35,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:40:35,461 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:40:35,461 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:40:35,461 INFO L87 Difference]: Start difference. First operand 1786 states and 2825 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 11:40:35,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:40:35,489 INFO L93 Difference]: Finished difference Result 2244 states and 3517 transitions. [2024-12-02 11:40:35,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:40:35,489 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 59 [2024-12-02 11:40:35,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:40:35,493 INFO L225 Difference]: With dead ends: 2244 [2024-12-02 11:40:35,493 INFO L226 Difference]: Without dead ends: 2003 [2024-12-02 11:40:35,494 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 11:40:35,494 INFO L435 NwaCegarLoop]: 1598 mSDtfsCounter, 1494 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1494 SdHoareTripleChecker+Valid, 1671 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:40:35,495 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1494 Valid, 1671 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:40:35,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2003 states. [2024-12-02 11:40:35,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2003 to 2001. [2024-12-02 11:40:35,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2001 states, 1999 states have (on average 1.5722861430715358) internal successors, (3143), 2000 states have internal predecessors, (3143), 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 11:40:35,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2001 states to 2001 states and 3143 transitions. [2024-12-02 11:40:35,523 INFO L78 Accepts]: Start accepts. Automaton has 2001 states and 3143 transitions. Word has length 59 [2024-12-02 11:40:35,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:40:35,523 INFO L471 AbstractCegarLoop]: Abstraction has 2001 states and 3143 transitions. [2024-12-02 11:40:35,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 11:40:35,523 INFO L276 IsEmpty]: Start isEmpty. Operand 2001 states and 3143 transitions. [2024-12-02 11:40:35,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-12-02 11:40:35,524 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:40:35,524 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] [2024-12-02 11:40:35,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 11:40:35,524 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:40:35,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:40:35,524 INFO L85 PathProgramCache]: Analyzing trace with hash -879656445, now seen corresponding path program 1 times [2024-12-02 11:40:35,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:40:35,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516572836] [2024-12-02 11:40:35,525 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:40:35,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:40:35,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:40:35,567 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 11:40:35,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:40:35,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516572836] [2024-12-02 11:40:35,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516572836] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:40:35,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:40:35,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:40:35,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054220713] [2024-12-02 11:40:35,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:40:35,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:40:35,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:40:35,568 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:40:35,568 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:40:35,568 INFO L87 Difference]: Start difference. First operand 2001 states and 3143 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 11:40:35,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:40:35,606 INFO L93 Difference]: Finished difference Result 2865 states and 4429 transitions. [2024-12-02 11:40:35,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:40:35,607 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 59 [2024-12-02 11:40:35,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:40:35,613 INFO L225 Difference]: With dead ends: 2865 [2024-12-02 11:40:35,613 INFO L226 Difference]: Without dead ends: 2409 [2024-12-02 11:40:35,614 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 11:40:35,615 INFO L435 NwaCegarLoop]: 1596 mSDtfsCounter, 1492 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1492 SdHoareTripleChecker+Valid, 1673 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:40:35,615 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1492 Valid, 1673 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:40:35,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2409 states. [2024-12-02 11:40:35,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2409 to 2407. [2024-12-02 11:40:35,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2407 states, 2405 states have (on average 1.5513513513513513) internal successors, (3731), 2406 states have internal predecessors, (3731), 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 11:40:35,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2407 states to 2407 states and 3731 transitions. [2024-12-02 11:40:35,653 INFO L78 Accepts]: Start accepts. Automaton has 2407 states and 3731 transitions. Word has length 59 [2024-12-02 11:40:35,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:40:35,653 INFO L471 AbstractCegarLoop]: Abstraction has 2407 states and 3731 transitions. [2024-12-02 11:40:35,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 11:40:35,654 INFO L276 IsEmpty]: Start isEmpty. Operand 2407 states and 3731 transitions. [2024-12-02 11:40:35,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-12-02 11:40:35,654 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:40:35,654 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] [2024-12-02 11:40:35,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 11:40:35,654 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:40:35,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:40:35,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1199842051, now seen corresponding path program 1 times [2024-12-02 11:40:35,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:40:35,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489967546] [2024-12-02 11:40:35,655 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:40:35,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:40:35,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:40:35,699 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 11:40:35,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:40:35,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489967546] [2024-12-02 11:40:35,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489967546] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:40:35,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:40:35,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:40:35,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446480257] [2024-12-02 11:40:35,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:40:35,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:40:35,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:40:35,700 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:40:35,700 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:40:35,700 INFO L87 Difference]: Start difference. First operand 2407 states and 3731 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 11:40:35,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:40:35,742 INFO L93 Difference]: Finished difference Result 4035 states and 6109 transitions. [2024-12-02 11:40:35,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:40:35,742 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 59 [2024-12-02 11:40:35,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:40:35,749 INFO L225 Difference]: With dead ends: 4035 [2024-12-02 11:40:35,749 INFO L226 Difference]: Without dead ends: 3173 [2024-12-02 11:40:35,751 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 11:40:35,751 INFO L435 NwaCegarLoop]: 1594 mSDtfsCounter, 1490 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1490 SdHoareTripleChecker+Valid, 1675 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:40:35,751 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1490 Valid, 1675 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:40:35,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3173 states. [2024-12-02 11:40:35,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3173 to 3171. [2024-12-02 11:40:35,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3171 states, 3169 states have (on average 1.5181445250867782) internal successors, (4811), 3170 states have internal predecessors, (4811), 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 11:40:35,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3171 states to 3171 states and 4811 transitions. [2024-12-02 11:40:35,837 INFO L78 Accepts]: Start accepts. Automaton has 3171 states and 4811 transitions. Word has length 59 [2024-12-02 11:40:35,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:40:35,837 INFO L471 AbstractCegarLoop]: Abstraction has 3171 states and 4811 transitions. [2024-12-02 11:40:35,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 11:40:35,838 INFO L276 IsEmpty]: Start isEmpty. Operand 3171 states and 4811 transitions. [2024-12-02 11:40:35,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-12-02 11:40:35,838 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:40:35,838 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] [2024-12-02 11:40:35,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 11:40:35,838 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:40:35,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:40:35,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1314192381, now seen corresponding path program 1 times [2024-12-02 11:40:35,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:40:35,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576390701] [2024-12-02 11:40:35,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:40:35,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:40:35,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:40:35,884 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 11:40:35,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:40:35,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576390701] [2024-12-02 11:40:35,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576390701] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:40:35,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:40:35,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:40:35,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493711714] [2024-12-02 11:40:35,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:40:35,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:40:35,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:40:35,885 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:40:35,885 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:40:35,885 INFO L87 Difference]: Start difference. First operand 3171 states and 4811 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 11:40:35,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:40:35,944 INFO L93 Difference]: Finished difference Result 6231 states and 9181 transitions. [2024-12-02 11:40:35,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:40:35,945 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 59 [2024-12-02 11:40:35,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:40:35,959 INFO L225 Difference]: With dead ends: 6231 [2024-12-02 11:40:35,959 INFO L226 Difference]: Without dead ends: 4605 [2024-12-02 11:40:35,962 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 11:40:35,962 INFO L435 NwaCegarLoop]: 1592 mSDtfsCounter, 1488 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1488 SdHoareTripleChecker+Valid, 1677 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:40:35,963 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1488 Valid, 1677 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:40:35,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4605 states. [2024-12-02 11:40:36,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4605 to 4603. [2024-12-02 11:40:36,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4603 states, 4601 states have (on average 1.4733753531840905) internal successors, (6779), 4602 states have internal predecessors, (6779), 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 11:40:36,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4603 states to 4603 states and 6779 transitions. [2024-12-02 11:40:36,061 INFO L78 Accepts]: Start accepts. Automaton has 4603 states and 6779 transitions. Word has length 59 [2024-12-02 11:40:36,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:40:36,061 INFO L471 AbstractCegarLoop]: Abstraction has 4603 states and 6779 transitions. [2024-12-02 11:40:36,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 11:40:36,062 INFO L276 IsEmpty]: Start isEmpty. Operand 4603 states and 6779 transitions. [2024-12-02 11:40:36,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-12-02 11:40:36,064 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:40:36,064 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:40:36,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 11:40:36,064 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:40:36,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:40:36,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1793062525, now seen corresponding path program 1 times [2024-12-02 11:40:36,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:40:36,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602832871] [2024-12-02 11:40:36,065 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:40:36,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:40:36,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:40:36,203 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 11:40:36,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:40:36,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602832871] [2024-12-02 11:40:36,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602832871] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:40:36,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:40:36,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 11:40:36,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314427491] [2024-12-02 11:40:36,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:40:36,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:40:36,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:40:36,204 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:40:36,205 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:40:36,205 INFO L87 Difference]: Start difference. First operand 4603 states and 6779 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 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 11:40:36,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:40:36,587 INFO L93 Difference]: Finished difference Result 19671 states and 28049 transitions. [2024-12-02 11:40:36,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 11:40:36,591 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 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 79 [2024-12-02 11:40:36,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:40:36,631 INFO L225 Difference]: With dead ends: 19671 [2024-12-02 11:40:36,632 INFO L226 Difference]: Without dead ends: 17493 [2024-12-02 11:40:36,637 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-12-02 11:40:36,638 INFO L435 NwaCegarLoop]: 1609 mSDtfsCounter, 6312 mSDsluCounter, 2120 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6312 SdHoareTripleChecker+Valid, 3729 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:40:36,638 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6312 Valid, 3729 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:40:36,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17493 states. [2024-12-02 11:40:36,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17493 to 7227. [2024-12-02 11:40:36,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7227 states, 7225 states have (on average 1.4453979238754324) internal successors, (10443), 7226 states have internal predecessors, (10443), 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 11:40:36,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7227 states to 7227 states and 10443 transitions. [2024-12-02 11:40:36,918 INFO L78 Accepts]: Start accepts. Automaton has 7227 states and 10443 transitions. Word has length 79 [2024-12-02 11:40:36,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:40:36,918 INFO L471 AbstractCegarLoop]: Abstraction has 7227 states and 10443 transitions. [2024-12-02 11:40:36,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 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 11:40:36,919 INFO L276 IsEmpty]: Start isEmpty. Operand 7227 states and 10443 transitions. [2024-12-02 11:40:36,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-12-02 11:40:36,922 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:40:36,922 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:40:36,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 11:40:36,922 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:40:36,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:40:36,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1529206141, now seen corresponding path program 1 times [2024-12-02 11:40:36,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:40:36,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024065922] [2024-12-02 11:40:36,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:40:36,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:40:36,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:40:37,151 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-02 11:40:37,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:40:37,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024065922] [2024-12-02 11:40:37,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024065922] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:40:37,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:40:37,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 11:40:37,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097906287] [2024-12-02 11:40:37,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:40:37,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:40:37,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:40:37,153 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:40:37,153 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:40:37,153 INFO L87 Difference]: Start difference. First operand 7227 states and 10443 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 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 11:40:37,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:40:37,580 INFO L93 Difference]: Finished difference Result 22727 states and 32337 transitions. [2024-12-02 11:40:37,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 11:40:37,581 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 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 79 [2024-12-02 11:40:37,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:40:37,627 INFO L225 Difference]: With dead ends: 22727 [2024-12-02 11:40:37,627 INFO L226 Difference]: Without dead ends: 19669 [2024-12-02 11:40:37,636 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-12-02 11:40:37,637 INFO L435 NwaCegarLoop]: 1608 mSDtfsCounter, 6316 mSDsluCounter, 2067 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6316 SdHoareTripleChecker+Valid, 3675 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:40:37,637 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6316 Valid, 3675 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:40:37,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19669 states. [2024-12-02 11:40:37,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19669 to 11371. [2024-12-02 11:40:37,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11371 states, 11369 states have (on average 1.4265986454393527) internal successors, (16219), 11370 states have internal predecessors, (16219), 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 11:40:38,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11371 states to 11371 states and 16219 transitions. [2024-12-02 11:40:38,008 INFO L78 Accepts]: Start accepts. Automaton has 11371 states and 16219 transitions. Word has length 79 [2024-12-02 11:40:38,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:40:38,008 INFO L471 AbstractCegarLoop]: Abstraction has 11371 states and 16219 transitions. [2024-12-02 11:40:38,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 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 11:40:38,008 INFO L276 IsEmpty]: Start isEmpty. Operand 11371 states and 16219 transitions. [2024-12-02 11:40:38,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-12-02 11:40:38,011 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:40:38,011 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:40:38,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 11:40:38,011 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:40:38,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:40:38,012 INFO L85 PathProgramCache]: Analyzing trace with hash -290944125, now seen corresponding path program 1 times [2024-12-02 11:40:38,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:40:38,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075775147] [2024-12-02 11:40:38,012 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:40:38,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:40:38,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:40:38,175 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-02 11:40:38,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:40:38,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075775147] [2024-12-02 11:40:38,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075775147] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:40:38,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:40:38,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 11:40:38,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944335063] [2024-12-02 11:40:38,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:40:38,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:40:38,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:40:38,177 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:40:38,177 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:40:38,177 INFO L87 Difference]: Start difference. First operand 11371 states and 16219 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 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 11:40:38,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:40:38,904 INFO L93 Difference]: Finished difference Result 25783 states and 36609 transitions. [2024-12-02 11:40:38,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 11:40:38,904 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 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 79 [2024-12-02 11:40:38,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:40:38,964 INFO L225 Difference]: With dead ends: 25783 [2024-12-02 11:40:38,964 INFO L226 Difference]: Without dead ends: 22725 [2024-12-02 11:40:38,974 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-12-02 11:40:38,975 INFO L435 NwaCegarLoop]: 1606 mSDtfsCounter, 6339 mSDsluCounter, 2036 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6339 SdHoareTripleChecker+Valid, 3642 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:40:38,975 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6339 Valid, 3642 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:40:38,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22725 states. [2024-12-02 11:40:39,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22725 to 14427. [2024-12-02 11:40:39,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14427 states, 14425 states have (on average 1.42051993067591) internal successors, (20491), 14426 states have internal predecessors, (20491), 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 11:40:39,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14427 states to 14427 states and 20491 transitions. [2024-12-02 11:40:39,420 INFO L78 Accepts]: Start accepts. Automaton has 14427 states and 20491 transitions. Word has length 79 [2024-12-02 11:40:39,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:40:39,421 INFO L471 AbstractCegarLoop]: Abstraction has 14427 states and 20491 transitions. [2024-12-02 11:40:39,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 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 11:40:39,421 INFO L276 IsEmpty]: Start isEmpty. Operand 14427 states and 20491 transitions. [2024-12-02 11:40:39,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-12-02 11:40:39,424 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:40:39,424 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:40:39,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 11:40:39,424 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:40:39,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:40:39,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1788554371, now seen corresponding path program 1 times [2024-12-02 11:40:39,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:40:39,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938706767] [2024-12-02 11:40:39,425 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:40:39,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:40:39,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:40:39,630 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-12-02 11:40:39,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:40:39,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938706767] [2024-12-02 11:40:39,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938706767] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:40:39,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:40:39,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 11:40:39,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996976328] [2024-12-02 11:40:39,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:40:39,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:40:39,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:40:39,632 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:40:39,632 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:40:39,632 INFO L87 Difference]: Start difference. First operand 14427 states and 20491 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 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 11:40:40,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:40:40,284 INFO L93 Difference]: Finished difference Result 28839 states and 40881 transitions. [2024-12-02 11:40:40,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 11:40:40,285 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 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 79 [2024-12-02 11:40:40,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:40:40,321 INFO L225 Difference]: With dead ends: 28839 [2024-12-02 11:40:40,321 INFO L226 Difference]: Without dead ends: 25781 [2024-12-02 11:40:40,329 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-12-02 11:40:40,330 INFO L435 NwaCegarLoop]: 1604 mSDtfsCounter, 6378 mSDsluCounter, 2032 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6378 SdHoareTripleChecker+Valid, 3636 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:40:40,330 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6378 Valid, 3636 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:40:40,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25781 states. [2024-12-02 11:40:40,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25781 to 17483. [2024-12-02 11:40:40,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17483 states, 17481 states have (on average 1.4165665579772324) internal successors, (24763), 17482 states have internal predecessors, (24763), 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 11:40:40,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17483 states to 17483 states and 24763 transitions. [2024-12-02 11:40:40,851 INFO L78 Accepts]: Start accepts. Automaton has 17483 states and 24763 transitions. Word has length 79 [2024-12-02 11:40:40,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:40:40,851 INFO L471 AbstractCegarLoop]: Abstraction has 17483 states and 24763 transitions. [2024-12-02 11:40:40,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 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 11:40:40,851 INFO L276 IsEmpty]: Start isEmpty. Operand 17483 states and 24763 transitions. [2024-12-02 11:40:40,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-12-02 11:40:40,853 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:40:40,853 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:40:40,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 11:40:40,853 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:40:40,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:40:40,854 INFO L85 PathProgramCache]: Analyzing trace with hash -725480061, now seen corresponding path program 1 times [2024-12-02 11:40:40,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:40:40,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869028493] [2024-12-02 11:40:40,854 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:40:40,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:40:40,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:40:41,002 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-12-02 11:40:41,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:40:41,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869028493] [2024-12-02 11:40:41,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869028493] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:40:41,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:40:41,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 11:40:41,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532196468] [2024-12-02 11:40:41,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:40:41,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:40:41,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:40:41,003 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:40:41,004 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:40:41,004 INFO L87 Difference]: Start difference. First operand 17483 states and 24763 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 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 11:40:41,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:40:41,585 INFO L93 Difference]: Finished difference Result 31895 states and 45153 transitions. [2024-12-02 11:40:41,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 11:40:41,586 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 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 79 [2024-12-02 11:40:41,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:40:41,610 INFO L225 Difference]: With dead ends: 31895 [2024-12-02 11:40:41,610 INFO L226 Difference]: Without dead ends: 28837 [2024-12-02 11:40:41,615 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-12-02 11:40:41,616 INFO L435 NwaCegarLoop]: 1603 mSDtfsCounter, 6332 mSDsluCounter, 2096 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6332 SdHoareTripleChecker+Valid, 3699 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:40:41,616 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6332 Valid, 3699 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:40:41,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28837 states. [2024-12-02 11:40:42,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28837 to 20539. [2024-12-02 11:40:42,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20539 states, 20537 states have (on average 1.4137897453376833) internal successors, (29035), 20538 states have internal predecessors, (29035), 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 11:40:42,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20539 states to 20539 states and 29035 transitions. [2024-12-02 11:40:42,159 INFO L78 Accepts]: Start accepts. Automaton has 20539 states and 29035 transitions. Word has length 79 [2024-12-02 11:40:42,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:40:42,159 INFO L471 AbstractCegarLoop]: Abstraction has 20539 states and 29035 transitions. [2024-12-02 11:40:42,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 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 11:40:42,159 INFO L276 IsEmpty]: Start isEmpty. Operand 20539 states and 29035 transitions. [2024-12-02 11:40:42,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-12-02 11:40:42,162 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:40:42,162 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:40:42,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 11:40:42,162 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:40:42,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:40:42,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1265022664, now seen corresponding path program 1 times [2024-12-02 11:40:42,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:40:42,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632557700] [2024-12-02 11:40:42,163 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:40:42,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:40:42,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:40:42,257 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:40:42,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:40:42,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632557700] [2024-12-02 11:40:42,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632557700] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:40:42,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:40:42,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:40:42,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305699619] [2024-12-02 11:40:42,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:40:42,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:40:42,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:40:42,258 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:40:42,258 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:40:42,259 INFO L87 Difference]: Start difference. First operand 20539 states and 29035 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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 11:40:42,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:40:42,659 INFO L93 Difference]: Finished difference Result 39535 states and 55613 transitions. [2024-12-02 11:40:42,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:40:42,659 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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 80 [2024-12-02 11:40:42,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:40:42,676 INFO L225 Difference]: With dead ends: 39535 [2024-12-02 11:40:42,676 INFO L226 Difference]: Without dead ends: 20541 [2024-12-02 11:40:42,687 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 11:40:42,687 INFO L435 NwaCegarLoop]: 1579 mSDtfsCounter, 45 mSDsluCounter, 1532 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 3111 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:40:42,687 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 3111 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:40:42,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20541 states. [2024-12-02 11:40:43,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20541 to 20539. [2024-12-02 11:40:43,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20539 states, 20537 states have (on average 1.399376734674003) internal successors, (28739), 20538 states have internal predecessors, (28739), 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 11:40:43,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20539 states to 20539 states and 28739 transitions. [2024-12-02 11:40:43,194 INFO L78 Accepts]: Start accepts. Automaton has 20539 states and 28739 transitions. Word has length 80 [2024-12-02 11:40:43,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:40:43,194 INFO L471 AbstractCegarLoop]: Abstraction has 20539 states and 28739 transitions. [2024-12-02 11:40:43,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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 11:40:43,194 INFO L276 IsEmpty]: Start isEmpty. Operand 20539 states and 28739 transitions. [2024-12-02 11:40:43,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-12-02 11:40:43,196 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:40:43,196 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:40:43,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 11:40:43,196 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:40:43,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:40:43,197 INFO L85 PathProgramCache]: Analyzing trace with hash -2037489509, now seen corresponding path program 1 times [2024-12-02 11:40:43,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:40:43,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194713618] [2024-12-02 11:40:43,197 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:40:43,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:40:43,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:40:43,271 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:40:43,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:40:43,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194713618] [2024-12-02 11:40:43,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194713618] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:40:43,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:40:43,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:40:43,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433477767] [2024-12-02 11:40:43,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:40:43,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:40:43,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:40:43,272 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:40:43,272 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:40:43,272 INFO L87 Difference]: Start difference. First operand 20539 states and 28739 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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 11:40:43,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:40:43,423 INFO L93 Difference]: Finished difference Result 27635 states and 38642 transitions. [2024-12-02 11:40:43,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:40:43,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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 81 [2024-12-02 11:40:43,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:40:43,432 INFO L225 Difference]: With dead ends: 27635 [2024-12-02 11:40:43,432 INFO L226 Difference]: Without dead ends: 8641 [2024-12-02 11:40:43,442 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 11:40:43,442 INFO L435 NwaCegarLoop]: 1577 mSDtfsCounter, 39 mSDsluCounter, 1531 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 3108 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:40:43,442 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 3108 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:40:43,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8641 states. [2024-12-02 11:40:43,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8641 to 8632. [2024-12-02 11:40:43,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8632 states, 8630 states have (on average 1.4192352259559675) internal successors, (12248), 8631 states have internal predecessors, (12248), 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 11:40:43,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8632 states to 8632 states and 12248 transitions. [2024-12-02 11:40:43,598 INFO L78 Accepts]: Start accepts. Automaton has 8632 states and 12248 transitions. Word has length 81 [2024-12-02 11:40:43,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:40:43,598 INFO L471 AbstractCegarLoop]: Abstraction has 8632 states and 12248 transitions. [2024-12-02 11:40:43,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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 11:40:43,598 INFO L276 IsEmpty]: Start isEmpty. Operand 8632 states and 12248 transitions. [2024-12-02 11:40:43,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-12-02 11:40:43,600 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:40:43,600 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:40:43,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 11:40:43,600 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:40:43,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:40:43,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1483523354, now seen corresponding path program 1 times [2024-12-02 11:40:43,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:40:43,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089878294] [2024-12-02 11:40:43,601 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:40:43,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:40:43,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:40:43,693 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:40:43,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:40:43,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089878294] [2024-12-02 11:40:43,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089878294] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:40:43,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:40:43,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:40:43,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926860323] [2024-12-02 11:40:43,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:40:43,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:40:43,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:40:43,694 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:40:43,694 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:40:43,695 INFO L87 Difference]: Start difference. First operand 8632 states and 12248 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 11:40:43,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:40:43,809 INFO L93 Difference]: Finished difference Result 12172 states and 17138 transitions. [2024-12-02 11:40:43,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:40:43,810 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 82 [2024-12-02 11:40:43,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:40:43,816 INFO L225 Difference]: With dead ends: 12172 [2024-12-02 11:40:43,816 INFO L226 Difference]: Without dead ends: 5098 [2024-12-02 11:40:43,822 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 11:40:43,823 INFO L435 NwaCegarLoop]: 1571 mSDtfsCounter, 41 mSDsluCounter, 1516 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 3087 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:40:43,823 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 3087 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:40:43,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5098 states. [2024-12-02 11:40:44,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5098 to 5096. [2024-12-02 11:40:44,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5096 states, 5094 states have (on average 1.4346289752650176) internal successors, (7308), 5095 states have internal predecessors, (7308), 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 11:40:44,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5096 states to 5096 states and 7308 transitions. [2024-12-02 11:40:44,018 INFO L78 Accepts]: Start accepts. Automaton has 5096 states and 7308 transitions. Word has length 82 [2024-12-02 11:40:44,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:40:44,019 INFO L471 AbstractCegarLoop]: Abstraction has 5096 states and 7308 transitions. [2024-12-02 11:40:44,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 11:40:44,019 INFO L276 IsEmpty]: Start isEmpty. Operand 5096 states and 7308 transitions. [2024-12-02 11:40:44,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-12-02 11:40:44,020 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:40:44,020 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:40:44,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 11:40:44,021 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:40:44,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:40:44,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1068531220, now seen corresponding path program 1 times [2024-12-02 11:40:44,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:40:44,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597925819] [2024-12-02 11:40:44,021 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:40:44,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:40:44,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:40:44,140 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:40:44,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:40:44,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597925819] [2024-12-02 11:40:44,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597925819] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:40:44,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:40:44,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:40:44,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282734048] [2024-12-02 11:40:44,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:40:44,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:40:44,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:40:44,142 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:40:44,142 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:40:44,142 INFO L87 Difference]: Start difference. First operand 5096 states and 7308 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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 11:40:44,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:40:44,223 INFO L93 Difference]: Finished difference Result 6868 states and 9728 transitions. [2024-12-02 11:40:44,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:40:44,223 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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 84 [2024-12-02 11:40:44,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:40:44,229 INFO L225 Difference]: With dead ends: 6868 [2024-12-02 11:40:44,229 INFO L226 Difference]: Without dead ends: 3330 [2024-12-02 11:40:44,232 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 11:40:44,235 INFO L435 NwaCegarLoop]: 1564 mSDtfsCounter, 38 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 3072 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:40:44,236 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 3072 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:40:44,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3330 states. [2024-12-02 11:40:44,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3330 to 3328. [2024-12-02 11:40:44,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3328 states, 3326 states have (on average 1.4624173180998197) internal successors, (4864), 3327 states have internal predecessors, (4864), 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 11:40:44,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3328 states to 3328 states and 4864 transitions. [2024-12-02 11:40:44,330 INFO L78 Accepts]: Start accepts. Automaton has 3328 states and 4864 transitions. Word has length 84 [2024-12-02 11:40:44,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:40:44,331 INFO L471 AbstractCegarLoop]: Abstraction has 3328 states and 4864 transitions. [2024-12-02 11:40:44,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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 11:40:44,331 INFO L276 IsEmpty]: Start isEmpty. Operand 3328 states and 4864 transitions. [2024-12-02 11:40:44,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-12-02 11:40:44,332 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:40:44,332 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:40:44,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 11:40:44,333 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:40:44,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:40:44,333 INFO L85 PathProgramCache]: Analyzing trace with hash -2111828674, now seen corresponding path program 1 times [2024-12-02 11:40:44,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:40:44,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790957615] [2024-12-02 11:40:44,334 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:40:44,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:40:44,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:40:44,455 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:40:44,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:40:44,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790957615] [2024-12-02 11:40:44,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790957615] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:40:44,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:40:44,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:40:44,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882506411] [2024-12-02 11:40:44,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:40:44,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:40:44,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:40:44,459 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:40:44,459 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:40:44,459 INFO L87 Difference]: Start difference. First operand 3328 states and 4864 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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 11:40:44,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:40:44,507 INFO L93 Difference]: Finished difference Result 4216 states and 6062 transitions. [2024-12-02 11:40:44,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:40:44,507 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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 86 [2024-12-02 11:40:44,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:40:44,513 INFO L225 Difference]: With dead ends: 4216 [2024-12-02 11:40:44,513 INFO L226 Difference]: Without dead ends: 2446 [2024-12-02 11:40:44,515 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 11:40:44,516 INFO L435 NwaCegarLoop]: 1557 mSDtfsCounter, 35 mSDsluCounter, 1500 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 3057 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:40:44,517 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 3057 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:40:44,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2446 states. [2024-12-02 11:40:44,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2446 to 2444. [2024-12-02 11:40:44,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2444 states, 2442 states have (on average 1.4967239967239967) internal successors, (3655), 2443 states have internal predecessors, (3655), 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 11:40:44,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2444 states to 2444 states and 3655 transitions. [2024-12-02 11:40:44,569 INFO L78 Accepts]: Start accepts. Automaton has 2444 states and 3655 transitions. Word has length 86 [2024-12-02 11:40:44,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:40:44,569 INFO L471 AbstractCegarLoop]: Abstraction has 2444 states and 3655 transitions. [2024-12-02 11:40:44,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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 11:40:44,569 INFO L276 IsEmpty]: Start isEmpty. Operand 2444 states and 3655 transitions. [2024-12-02 11:40:44,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-12-02 11:40:44,571 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:40:44,571 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:40:44,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 11:40:44,571 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:40:44,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:40:44,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1630042352, now seen corresponding path program 1 times [2024-12-02 11:40:44,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:40:44,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399376679] [2024-12-02 11:40:44,574 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:40:44,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:40:44,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:40:44,911 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:40:44,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:40:44,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399376679] [2024-12-02 11:40:44,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399376679] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:40:44,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [482185873] [2024-12-02 11:40:44,911 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:40:44,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:40:44,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:40:44,914 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:40:44,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 11:40:45,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:40:45,041 INFO L256 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-12-02 11:40:45,047 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:40:45,302 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:40:45,302 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:40:45,828 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:40:45,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [482185873] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:40:45,829 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:40:45,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 6] total 19 [2024-12-02 11:40:45,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454776835] [2024-12-02 11:40:45,829 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:40:45,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 11:40:45,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:40:45,830 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 11:40:45,830 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2024-12-02 11:40:45,830 INFO L87 Difference]: Start difference. First operand 2444 states and 3655 transitions. Second operand has 19 states, 19 states have (on average 13.210526315789474) internal successors, (251), 19 states have internal predecessors, (251), 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 11:40:47,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:40:47,886 INFO L93 Difference]: Finished difference Result 8642 states and 11739 transitions. [2024-12-02 11:40:47,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-12-02 11:40:47,887 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.210526315789474) internal successors, (251), 19 states have internal predecessors, (251), 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 88 [2024-12-02 11:40:47,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:40:47,895 INFO L225 Difference]: With dead ends: 8642 [2024-12-02 11:40:47,895 INFO L226 Difference]: Without dead ends: 7678 [2024-12-02 11:40:47,899 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1213 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=781, Invalid=3251, Unknown=0, NotChecked=0, Total=4032 [2024-12-02 11:40:47,900 INFO L435 NwaCegarLoop]: 1551 mSDtfsCounter, 13846 mSDsluCounter, 7975 mSDsCounter, 0 mSdLazyCounter, 1240 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13846 SdHoareTripleChecker+Valid, 9526 SdHoareTripleChecker+Invalid, 1301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 11:40:47,900 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13846 Valid, 9526 Invalid, 1301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1240 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 11:40:47,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7678 states. [2024-12-02 11:40:48,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7678 to 7045. [2024-12-02 11:40:48,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7045 states, 7043 states have (on average 1.356524208433906) internal successors, (9554), 7044 states have internal predecessors, (9554), 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 11:40:48,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7045 states to 7045 states and 9554 transitions. [2024-12-02 11:40:48,056 INFO L78 Accepts]: Start accepts. Automaton has 7045 states and 9554 transitions. Word has length 88 [2024-12-02 11:40:48,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:40:48,056 INFO L471 AbstractCegarLoop]: Abstraction has 7045 states and 9554 transitions. [2024-12-02 11:40:48,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.210526315789474) internal successors, (251), 19 states have internal predecessors, (251), 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 11:40:48,056 INFO L276 IsEmpty]: Start isEmpty. Operand 7045 states and 9554 transitions. [2024-12-02 11:40:48,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-12-02 11:40:48,057 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:40:48,057 INFO L218 NwaCegarLoop]: trace histogram [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 11:40:48,065 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 11:40:48,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:40:48,258 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:40:48,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:40:48,258 INFO L85 PathProgramCache]: Analyzing trace with hash -976563003, now seen corresponding path program 1 times [2024-12-02 11:40:48,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:40:48,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815849107] [2024-12-02 11:40:48,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:40:48,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:40:48,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:40:49,245 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:40:49,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:40:49,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815849107] [2024-12-02 11:40:49,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815849107] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:40:49,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1074843374] [2024-12-02 11:40:49,246 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:40:49,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:40:49,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:40:49,248 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:40:49,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 11:40:49,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:40:49,382 INFO L256 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 11:40:49,385 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:40:49,899 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:40:49,899 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:40:50,943 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:40:50,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1074843374] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:40:50,944 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:40:50,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 25 [2024-12-02 11:40:50,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099264200] [2024-12-02 11:40:50,944 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:40:50,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-12-02 11:40:50,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:40:50,945 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-12-02 11:40:50,946 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=561, Unknown=0, NotChecked=0, Total=650 [2024-12-02 11:40:50,946 INFO L87 Difference]: Start difference. First operand 7045 states and 9554 transitions. Second operand has 26 states, 26 states have (on average 8.884615384615385) internal successors, (231), 25 states have internal predecessors, (231), 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 11:40:51,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:40:51,794 INFO L93 Difference]: Finished difference Result 17933 states and 23677 transitions. [2024-12-02 11:40:51,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 11:40:51,795 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 8.884615384615385) internal successors, (231), 25 states have internal predecessors, (231), 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 89 [2024-12-02 11:40:51,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:40:51,803 INFO L225 Difference]: With dead ends: 17933 [2024-12-02 11:40:51,804 INFO L226 Difference]: Without dead ends: 12730 [2024-12-02 11:40:51,807 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=279, Invalid=1053, Unknown=0, NotChecked=0, Total=1332 [2024-12-02 11:40:51,808 INFO L435 NwaCegarLoop]: 1512 mSDtfsCounter, 19833 mSDsluCounter, 4841 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19833 SdHoareTripleChecker+Valid, 6353 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:40:51,808 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19833 Valid, 6353 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 11:40:51,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12730 states. [2024-12-02 11:40:52,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12730 to 12582. [2024-12-02 11:40:52,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12582 states, 12580 states have (on average 1.3135930047694753) internal successors, (16525), 12581 states have internal predecessors, (16525), 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 11:40:52,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12582 states to 12582 states and 16525 transitions. [2024-12-02 11:40:52,161 INFO L78 Accepts]: Start accepts. Automaton has 12582 states and 16525 transitions. Word has length 89 [2024-12-02 11:40:52,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:40:52,161 INFO L471 AbstractCegarLoop]: Abstraction has 12582 states and 16525 transitions. [2024-12-02 11:40:52,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 8.884615384615385) internal successors, (231), 25 states have internal predecessors, (231), 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 11:40:52,161 INFO L276 IsEmpty]: Start isEmpty. Operand 12582 states and 16525 transitions. [2024-12-02 11:40:52,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-12-02 11:40:52,162 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:40:52,162 INFO L218 NwaCegarLoop]: trace histogram [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 11:40:52,169 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 11:40:52,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:40:52,363 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:40:52,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:40:52,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1535524411, now seen corresponding path program 1 times [2024-12-02 11:40:52,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:40:52,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536555798] [2024-12-02 11:40:52,364 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:40:52,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:40:52,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:40:53,823 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:40:53,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:40:53,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536555798] [2024-12-02 11:40:53,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536555798] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:40:53,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [857670188] [2024-12-02 11:40:53,824 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:40:53,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:40:53,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:40:53,825 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:40:53,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 11:40:53,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:40:53,963 INFO L256 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-12-02 11:40:53,965 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:40:54,539 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:40:54,539 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:40:55,566 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:40:55,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [857670188] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:40:55,567 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:40:55,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 13] total 34 [2024-12-02 11:40:55,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627413825] [2024-12-02 11:40:55,567 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:40:55,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-12-02 11:40:55,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:40:55,568 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-12-02 11:40:55,568 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=963, Unknown=0, NotChecked=0, Total=1122 [2024-12-02 11:40:55,568 INFO L87 Difference]: Start difference. First operand 12582 states and 16525 transitions. Second operand has 34 states, 34 states have (on average 6.970588235294118) internal successors, (237), 34 states have internal predecessors, (237), 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 11:40:58,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:40:58,849 INFO L93 Difference]: Finished difference Result 59307 states and 76673 transitions. [2024-12-02 11:40:58,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-12-02 11:40:58,849 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 6.970588235294118) internal successors, (237), 34 states have internal predecessors, (237), 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 89 [2024-12-02 11:40:58,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:40:58,878 INFO L225 Difference]: With dead ends: 59307 [2024-12-02 11:40:58,878 INFO L226 Difference]: Without dead ends: 48655 [2024-12-02 11:40:58,885 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1091 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=926, Invalid=3766, Unknown=0, NotChecked=0, Total=4692 [2024-12-02 11:40:58,886 INFO L435 NwaCegarLoop]: 1540 mSDtfsCounter, 25124 mSDsluCounter, 8398 mSDsCounter, 0 mSdLazyCounter, 1507 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25124 SdHoareTripleChecker+Valid, 9938 SdHoareTripleChecker+Invalid, 1556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 11:40:58,886 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25124 Valid, 9938 Invalid, 1556 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [49 Valid, 1507 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 11:40:58,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48655 states. [2024-12-02 11:41:00,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48655 to 48103. [2024-12-02 11:41:00,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48103 states, 48101 states have (on average 1.2709922870626391) internal successors, (61136), 48102 states have internal predecessors, (61136), 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 11:41:00,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48103 states to 48103 states and 61136 transitions. [2024-12-02 11:41:00,312 INFO L78 Accepts]: Start accepts. Automaton has 48103 states and 61136 transitions. Word has length 89 [2024-12-02 11:41:00,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:00,312 INFO L471 AbstractCegarLoop]: Abstraction has 48103 states and 61136 transitions. [2024-12-02 11:41:00,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 6.970588235294118) internal successors, (237), 34 states have internal predecessors, (237), 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 11:41:00,313 INFO L276 IsEmpty]: Start isEmpty. Operand 48103 states and 61136 transitions. [2024-12-02 11:41:00,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-12-02 11:41:00,314 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:00,314 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 11:41:00,322 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 11:41:00,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:41:00,515 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:00,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:00,515 INFO L85 PathProgramCache]: Analyzing trace with hash 154349394, now seen corresponding path program 1 times [2024-12-02 11:41:00,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:41:00,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401224051] [2024-12-02 11:41:00,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:00,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:41:00,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:00,903 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:41:00,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:41:00,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401224051] [2024-12-02 11:41:00,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401224051] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:41:00,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [727368337] [2024-12-02 11:41:00,903 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:00,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:41:00,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:41:00,904 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:41:00,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 11:41:01,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:01,019 INFO L256 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 11:41:01,021 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:41:01,476 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:41:01,476 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:41:02,198 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:41:02,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [727368337] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:41:02,198 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:41:02,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-12-02 11:41:02,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54171625] [2024-12-02 11:41:02,199 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:41:02,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-12-02 11:41:02,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:41:02,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-12-02 11:41:02,199 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=514, Unknown=0, NotChecked=0, Total=600 [2024-12-02 11:41:02,200 INFO L87 Difference]: Start difference. First operand 48103 states and 61136 transitions. Second operand has 25 states, 25 states have (on average 9.76) internal successors, (244), 24 states have internal predecessors, (244), 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 11:41:06,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:06,132 INFO L93 Difference]: Finished difference Result 141946 states and 180161 transitions. [2024-12-02 11:41:06,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-12-02 11:41:06,132 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 9.76) internal successors, (244), 24 states have internal predecessors, (244), 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 90 [2024-12-02 11:41:06,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:06,215 INFO L225 Difference]: With dead ends: 141946 [2024-12-02 11:41:06,215 INFO L226 Difference]: Without dead ends: 98142 [2024-12-02 11:41:06,245 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 614 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=622, Invalid=2458, Unknown=0, NotChecked=0, Total=3080 [2024-12-02 11:41:06,246 INFO L435 NwaCegarLoop]: 1544 mSDtfsCounter, 21725 mSDsluCounter, 6879 mSDsCounter, 0 mSdLazyCounter, 1157 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21725 SdHoareTripleChecker+Valid, 8423 SdHoareTripleChecker+Invalid, 1183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:06,246 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21725 Valid, 8423 Invalid, 1183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1157 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 11:41:06,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98142 states. [2024-12-02 11:41:08,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98142 to 90990. [2024-12-02 11:41:08,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90990 states, 90988 states have (on average 1.2401415571284125) internal successors, (112838), 90989 states have internal predecessors, (112838), 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 11:41:09,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90990 states to 90990 states and 112838 transitions. [2024-12-02 11:41:09,103 INFO L78 Accepts]: Start accepts. Automaton has 90990 states and 112838 transitions. Word has length 90 [2024-12-02 11:41:09,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:09,103 INFO L471 AbstractCegarLoop]: Abstraction has 90990 states and 112838 transitions. [2024-12-02 11:41:09,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 9.76) internal successors, (244), 24 states have internal predecessors, (244), 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 11:41:09,103 INFO L276 IsEmpty]: Start isEmpty. Operand 90990 states and 112838 transitions. [2024-12-02 11:41:09,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-12-02 11:41:09,106 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:09,107 INFO L218 NwaCegarLoop]: trace histogram [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 11:41:09,113 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 11:41:09,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:41:09,307 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:09,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:09,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1858200354, now seen corresponding path program 1 times [2024-12-02 11:41:09,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:41:09,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496086359] [2024-12-02 11:41:09,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:09,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:41:09,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:10,786 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:41:10,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:41:10,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496086359] [2024-12-02 11:41:10,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496086359] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:41:10,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2123279897] [2024-12-02 11:41:10,786 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:10,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:41:10,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:41:10,788 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:41:10,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 11:41:10,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:10,903 INFO L256 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-12-02 11:41:10,906 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:41:15,594 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:41:15,594 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:41:20,109 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:41:20,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2123279897] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:41:20,109 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:41:20,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 25, 20] total 60 [2024-12-02 11:41:20,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928239908] [2024-12-02 11:41:20,110 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:41:20,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2024-12-02 11:41:20,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:41:20,111 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2024-12-02 11:41:20,111 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=265, Invalid=3275, Unknown=0, NotChecked=0, Total=3540 [2024-12-02 11:41:20,112 INFO L87 Difference]: Start difference. First operand 90990 states and 112838 transitions. Second operand has 60 states, 60 states have (on average 4.233333333333333) internal successors, (254), 60 states have internal predecessors, (254), 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 11:46:51,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:46:51,408 INFO L93 Difference]: Finished difference Result 355295 states and 440019 transitions. [2024-12-02 11:46:51,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 814 states. [2024-12-02 11:46:51,408 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 60 states have (on average 4.233333333333333) internal successors, (254), 60 states have internal predecessors, (254), 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 92 [2024-12-02 11:46:51,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:46:51,717 INFO L225 Difference]: With dead ends: 355295 [2024-12-02 11:46:51,717 INFO L226 Difference]: Without dead ends: 321134 [2024-12-02 11:46:51,806 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1012 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 869 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 355959 ImplicationChecksByTransitivity, 306.2s TimeCoverageRelationStatistics Valid=71648, Invalid=686122, Unknown=0, NotChecked=0, Total=757770 [2024-12-02 11:46:51,806 INFO L435 NwaCegarLoop]: 1765 mSDtfsCounter, 43699 mSDsluCounter, 36619 mSDsCounter, 0 mSdLazyCounter, 15987 mSolverCounterSat, 373 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43699 SdHoareTripleChecker+Valid, 38384 SdHoareTripleChecker+Invalid, 16360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 373 IncrementalHoareTripleChecker+Valid, 15987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:46:51,806 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43699 Valid, 38384 Invalid, 16360 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [373 Valid, 15987 Invalid, 0 Unknown, 0 Unchecked, 17.0s Time] [2024-12-02 11:46:51,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321134 states. [2024-12-02 11:46:58,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321134 to 127419. [2024-12-02 11:46:58,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127419 states, 127417 states have (on average 1.2458855568723168) internal successors, (158747), 127418 states have internal predecessors, (158747), 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 11:46:58,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127419 states to 127419 states and 158747 transitions. [2024-12-02 11:46:58,730 INFO L78 Accepts]: Start accepts. Automaton has 127419 states and 158747 transitions. Word has length 92 [2024-12-02 11:46:58,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:46:58,730 INFO L471 AbstractCegarLoop]: Abstraction has 127419 states and 158747 transitions. [2024-12-02 11:46:58,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 60 states have (on average 4.233333333333333) internal successors, (254), 60 states have internal predecessors, (254), 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 11:46:58,730 INFO L276 IsEmpty]: Start isEmpty. Operand 127419 states and 158747 transitions. [2024-12-02 11:46:58,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-12-02 11:46:58,732 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:46:58,732 INFO L218 NwaCegarLoop]: trace histogram [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 11:46:58,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-12-02 11:46:58,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-12-02 11:46:58,933 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:46:58,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:46:58,933 INFO L85 PathProgramCache]: Analyzing trace with hash 2026037978, now seen corresponding path program 1 times [2024-12-02 11:46:58,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:46:58,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285804148] [2024-12-02 11:46:58,933 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:46:58,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:46:58,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:47:02,298 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:47:02,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:47:02,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285804148] [2024-12-02 11:47:02,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285804148] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:47:02,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1123886959] [2024-12-02 11:47:02,298 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:47:02,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:47:02,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:47:02,300 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:47:02,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 11:47:02,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:47:02,424 INFO L256 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 11:47:02,427 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:47:03,153 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:47:03,154 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:47:04,392 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:47:04,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1123886959] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:47:04,392 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:47:04,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 12, 12] total 51 [2024-12-02 11:47:04,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064066108] [2024-12-02 11:47:04,392 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:47:04,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2024-12-02 11:47:04,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:47:04,393 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2024-12-02 11:47:04,393 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=2402, Unknown=0, NotChecked=0, Total=2550 [2024-12-02 11:47:04,393 INFO L87 Difference]: Start difference. First operand 127419 states and 158747 transitions. Second operand has 51 states, 51 states have (on average 4.686274509803922) internal successors, (239), 51 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 11:47:55,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:47:55,590 INFO L93 Difference]: Finished difference Result 237721 states and 294676 transitions. [2024-12-02 11:47:55,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 181 states. [2024-12-02 11:47:55,590 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 4.686274509803922) internal successors, (239), 51 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 92 [2024-12-02 11:47:55,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:47:55,760 INFO L225 Difference]: With dead ends: 237721 [2024-12-02 11:47:55,760 INFO L226 Difference]: Without dead ends: 197430 [2024-12-02 11:47:55,792 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 228 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16701 ImplicationChecksByTransitivity, 37.6s TimeCoverageRelationStatistics Valid=9549, Invalid=43121, Unknown=0, NotChecked=0, Total=52670 [2024-12-02 11:47:55,792 INFO L435 NwaCegarLoop]: 1690 mSDtfsCounter, 30434 mSDsluCounter, 33666 mSDsCounter, 0 mSdLazyCounter, 7830 mSolverCounterSat, 212 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30434 SdHoareTripleChecker+Valid, 35356 SdHoareTripleChecker+Invalid, 8042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 212 IncrementalHoareTripleChecker+Valid, 7830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:47:55,793 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30434 Valid, 35356 Invalid, 8042 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [212 Valid, 7830 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2024-12-02 11:47:55,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197430 states. [2024-12-02 11:48:01,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197430 to 113734. [2024-12-02 11:48:01,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113734 states, 113732 states have (on average 1.2404072732388423) internal successors, (141074), 113733 states have internal predecessors, (141074), 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 11:48:01,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113734 states to 113734 states and 141074 transitions. [2024-12-02 11:48:01,984 INFO L78 Accepts]: Start accepts. Automaton has 113734 states and 141074 transitions. Word has length 92 [2024-12-02 11:48:01,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:48:01,984 INFO L471 AbstractCegarLoop]: Abstraction has 113734 states and 141074 transitions. [2024-12-02 11:48:01,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 4.686274509803922) internal successors, (239), 51 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 11:48:01,985 INFO L276 IsEmpty]: Start isEmpty. Operand 113734 states and 141074 transitions. [2024-12-02 11:48:01,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-12-02 11:48:01,987 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:48:01,987 INFO L218 NwaCegarLoop]: trace histogram [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 11:48:01,994 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-12-02 11:48:02,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-12-02 11:48:02,188 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:48:02,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:48:02,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1004211701, now seen corresponding path program 1 times [2024-12-02 11:48:02,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:48:02,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160331708] [2024-12-02 11:48:02,188 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:48:02,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:48:02,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:48:04,254 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:48:04,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:48:04,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160331708] [2024-12-02 11:48:04,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160331708] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:48:04,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1355994939] [2024-12-02 11:48:04,255 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:48:04,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:48:04,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:48:04,256 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:48:04,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 11:48:04,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:48:04,372 INFO L256 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-12-02 11:48:04,374 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:48:06,628 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:48:06,628 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:48:09,613 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:48:09,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1355994939] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:48:09,613 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:48:09,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 20, 19] total 58 [2024-12-02 11:48:09,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631656235] [2024-12-02 11:48:09,614 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:48:09,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2024-12-02 11:48:09,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:48:09,615 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2024-12-02 11:48:09,616 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=272, Invalid=3034, Unknown=0, NotChecked=0, Total=3306 [2024-12-02 11:48:09,616 INFO L87 Difference]: Start difference. First operand 113734 states and 141074 transitions. Second operand has 58 states, 58 states have (on average 4.241379310344827) internal successors, (246), 58 states have internal predecessors, (246), 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 11:49:14,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:49:14,479 INFO L93 Difference]: Finished difference Result 276299 states and 342123 transitions. [2024-12-02 11:49:14,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 258 states. [2024-12-02 11:49:14,479 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 58 states have (on average 4.241379310344827) internal successors, (246), 58 states have internal predecessors, (246), 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 93 [2024-12-02 11:49:14,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:49:14,692 INFO L225 Difference]: With dead ends: 276299 [2024-12-02 11:49:14,692 INFO L226 Difference]: Without dead ends: 237891 [2024-12-02 11:49:14,728 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 311 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39550 ImplicationChecksByTransitivity, 49.1s TimeCoverageRelationStatistics Valid=15447, Invalid=82209, Unknown=0, NotChecked=0, Total=97656 [2024-12-02 11:49:14,728 INFO L435 NwaCegarLoop]: 1645 mSDtfsCounter, 42626 mSDsluCounter, 27853 mSDsCounter, 0 mSdLazyCounter, 6972 mSolverCounterSat, 266 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42626 SdHoareTripleChecker+Valid, 29498 SdHoareTripleChecker+Invalid, 7238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 266 IncrementalHoareTripleChecker+Valid, 6972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:49:14,729 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42626 Valid, 29498 Invalid, 7238 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [266 Valid, 6972 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2024-12-02 11:49:14,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237891 states. [2024-12-02 11:49:22,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237891 to 129163. [2024-12-02 11:49:22,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129163 states, 129161 states have (on average 1.2378426924536043) internal successors, (159881), 129162 states have internal predecessors, (159881), 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 11:49:22,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129163 states to 129163 states and 159881 transitions. [2024-12-02 11:49:22,642 INFO L78 Accepts]: Start accepts. Automaton has 129163 states and 159881 transitions. Word has length 93 [2024-12-02 11:49:22,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:49:22,642 INFO L471 AbstractCegarLoop]: Abstraction has 129163 states and 159881 transitions. [2024-12-02 11:49:22,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 58 states have (on average 4.241379310344827) internal successors, (246), 58 states have internal predecessors, (246), 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 11:49:22,642 INFO L276 IsEmpty]: Start isEmpty. Operand 129163 states and 159881 transitions. [2024-12-02 11:49:22,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-12-02 11:49:22,644 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:49:22,644 INFO L218 NwaCegarLoop]: trace histogram [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 11:49:22,651 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-12-02 11:49:22,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-12-02 11:49:22,844 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:49:22,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:49:22,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1461263243, now seen corresponding path program 1 times [2024-12-02 11:49:22,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:49:22,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013051136] [2024-12-02 11:49:22,845 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:49:22,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:49:22,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:49:23,633 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:49:23,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:49:23,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013051136] [2024-12-02 11:49:23,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013051136] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:49:23,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [524945071] [2024-12-02 11:49:23,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:49:23,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:49:23,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:49:23,635 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:49:23,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 11:49:23,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:49:23,757 INFO L256 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-02 11:49:23,758 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:49:24,522 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:49:24,522 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:49:25,355 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:49:25,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [524945071] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:49:25,355 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:49:25,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 34 [2024-12-02 11:49:25,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018479784] [2024-12-02 11:49:25,355 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:49:25,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-12-02 11:49:25,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:49:25,356 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-12-02 11:49:25,356 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=997, Unknown=0, NotChecked=0, Total=1122 [2024-12-02 11:49:25,356 INFO L87 Difference]: Start difference. First operand 129163 states and 159881 transitions. Second operand has 34 states, 34 states have (on average 7.323529411764706) internal successors, (249), 34 states have internal predecessors, (249), 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 11:49:40,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:49:40,821 INFO L93 Difference]: Finished difference Result 227735 states and 280032 transitions. [2024-12-02 11:49:40,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2024-12-02 11:49:40,822 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 7.323529411764706) internal successors, (249), 34 states have internal predecessors, (249), 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 93 [2024-12-02 11:49:40,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:49:40,951 INFO L225 Difference]: With dead ends: 227735 [2024-12-02 11:49:40,951 INFO L226 Difference]: Without dead ends: 161273 [2024-12-02 11:49:40,979 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2176 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=1632, Invalid=6378, Unknown=0, NotChecked=0, Total=8010 [2024-12-02 11:49:40,979 INFO L435 NwaCegarLoop]: 1559 mSDtfsCounter, 12216 mSDsluCounter, 27957 mSDsCounter, 0 mSdLazyCounter, 2117 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12216 SdHoareTripleChecker+Valid, 29516 SdHoareTripleChecker+Invalid, 2158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 2117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:49:40,979 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12216 Valid, 29516 Invalid, 2158 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [41 Valid, 2117 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 11:49:41,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161273 states. [2024-12-02 11:49:45,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161273 to 74148. [2024-12-02 11:49:45,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74148 states, 74146 states have (on average 1.230531653764195) internal successors, (91239), 74147 states have internal predecessors, (91239), 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 11:49:46,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74148 states to 74148 states and 91239 transitions. [2024-12-02 11:49:46,056 INFO L78 Accepts]: Start accepts. Automaton has 74148 states and 91239 transitions. Word has length 93 [2024-12-02 11:49:46,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:49:46,056 INFO L471 AbstractCegarLoop]: Abstraction has 74148 states and 91239 transitions. [2024-12-02 11:49:46,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.323529411764706) internal successors, (249), 34 states have internal predecessors, (249), 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 11:49:46,056 INFO L276 IsEmpty]: Start isEmpty. Operand 74148 states and 91239 transitions. [2024-12-02 11:49:46,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 11:49:46,057 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:49:46,057 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:49:46,064 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-02 11:49:46,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-12-02 11:49:46,258 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:49:46,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:49:46,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1057586264, now seen corresponding path program 1 times [2024-12-02 11:49:46,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:49:46,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899002261] [2024-12-02 11:49:46,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:49:46,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:49:46,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:49:46,924 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:49:46,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:49:46,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899002261] [2024-12-02 11:49:46,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899002261] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:49:46,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2018252854] [2024-12-02 11:49:46,924 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:49:46,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:49:46,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:49:46,926 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:49:46,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 11:49:47,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:49:47,078 INFO L256 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 70 conjuncts are in the unsatisfiable core [2024-12-02 11:49:47,080 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:49:54,589 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:49:54,589 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:50:08,011 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:50:08,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2018252854] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:50:08,011 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:50:08,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 38, 31] total 75 [2024-12-02 11:50:08,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417901518] [2024-12-02 11:50:08,012 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:50:08,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2024-12-02 11:50:08,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:50:08,012 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2024-12-02 11:50:08,013 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=723, Invalid=4827, Unknown=0, NotChecked=0, Total=5550 [2024-12-02 11:50:08,013 INFO L87 Difference]: Start difference. First operand 74148 states and 91239 transitions. Second operand has 75 states, 75 states have (on average 3.4133333333333336) internal successors, (256), 75 states have internal predecessors, (256), 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 11:52:17,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:52:17,113 INFO L93 Difference]: Finished difference Result 236768 states and 292294 transitions. [2024-12-02 11:52:17,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2024-12-02 11:52:17,114 INFO L78 Accepts]: Start accepts. Automaton has has 75 states, 75 states have (on average 3.4133333333333336) internal successors, (256), 75 states have internal predecessors, (256), 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 94 [2024-12-02 11:52:17,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:52:17,296 INFO L225 Difference]: With dead ends: 236768 [2024-12-02 11:52:17,297 INFO L226 Difference]: Without dead ends: 207208 [2024-12-02 11:52:17,330 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 265 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26513 ImplicationChecksByTransitivity, 110.3s TimeCoverageRelationStatistics Valid=11949, Invalid=59073, Unknown=0, NotChecked=0, Total=71022 [2024-12-02 11:52:17,330 INFO L435 NwaCegarLoop]: 1598 mSDtfsCounter, 30571 mSDsluCounter, 37209 mSDsCounter, 0 mSdLazyCounter, 9782 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30571 SdHoareTripleChecker+Valid, 38807 SdHoareTripleChecker+Invalid, 9971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 9782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2024-12-02 11:52:17,330 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30571 Valid, 38807 Invalid, 9971 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [189 Valid, 9782 Invalid, 0 Unknown, 0 Unchecked, 11.7s Time] [2024-12-02 11:52:17,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207208 states. [2024-12-02 11:52:22,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207208 to 62189. [2024-12-02 11:52:22,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62189 states, 62187 states have (on average 1.2293244568800554) internal successors, (76448), 62188 states have internal predecessors, (76448), 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 11:52:22,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62189 states to 62189 states and 76448 transitions. [2024-12-02 11:52:22,925 INFO L78 Accepts]: Start accepts. Automaton has 62189 states and 76448 transitions. Word has length 94 [2024-12-02 11:52:22,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:52:22,925 INFO L471 AbstractCegarLoop]: Abstraction has 62189 states and 76448 transitions. [2024-12-02 11:52:22,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 75 states have (on average 3.4133333333333336) internal successors, (256), 75 states have internal predecessors, (256), 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 11:52:22,925 INFO L276 IsEmpty]: Start isEmpty. Operand 62189 states and 76448 transitions. [2024-12-02 11:52:22,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 11:52:22,926 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:52:22,926 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 11:52:22,932 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-12-02 11:52:23,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:52:23,127 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:52:23,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:52:23,127 INFO L85 PathProgramCache]: Analyzing trace with hash -787386434, now seen corresponding path program 1 times [2024-12-02 11:52:23,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:52:23,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169974430] [2024-12-02 11:52:23,127 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:52:23,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:52:23,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:52:23,243 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:52:23,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:52:23,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169974430] [2024-12-02 11:52:23,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169974430] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:52:23,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:52:23,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:52:23,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23435628] [2024-12-02 11:52:23,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:52:23,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:52:23,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:52:23,244 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:52:23,244 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:52:23,244 INFO L87 Difference]: Start difference. First operand 62189 states and 76448 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 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 11:52:31,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:52:31,174 INFO L93 Difference]: Finished difference Result 64444 states and 79843 transitions. [2024-12-02 11:52:31,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:52:31,175 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 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 95 [2024-12-02 11:52:31,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:52:31,236 INFO L225 Difference]: With dead ends: 64444 [2024-12-02 11:52:31,236 INFO L226 Difference]: Without dead ends: 62940 [2024-12-02 11:52:31,246 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:52:31,247 INFO L435 NwaCegarLoop]: 796 mSDtfsCounter, 1000 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 4582 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1000 SdHoareTripleChecker+Valid, 1386 SdHoareTripleChecker+Invalid, 4803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 4582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-12-02 11:52:31,247 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1000 Valid, 1386 Invalid, 4803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 4582 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-12-02 11:52:31,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62940 states. [2024-12-02 11:52:36,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62940 to 62940. [2024-12-02 11:52:36,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62940 states, 62938 states have (on average 1.2266834027137818) internal successors, (77205), 62939 states have internal predecessors, (77205), 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 11:52:36,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62940 states to 62940 states and 77205 transitions. [2024-12-02 11:52:36,365 INFO L78 Accepts]: Start accepts. Automaton has 62940 states and 77205 transitions. Word has length 95 [2024-12-02 11:52:36,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:52:36,365 INFO L471 AbstractCegarLoop]: Abstraction has 62940 states and 77205 transitions. [2024-12-02 11:52:36,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 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 11:52:36,365 INFO L276 IsEmpty]: Start isEmpty. Operand 62940 states and 77205 transitions. [2024-12-02 11:52:36,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-12-02 11:52:36,371 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:52:36,371 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:52:36,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-12-02 11:52:36,371 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:52:36,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:52:36,371 INFO L85 PathProgramCache]: Analyzing trace with hash 108690406, now seen corresponding path program 1 times [2024-12-02 11:52:36,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:52:36,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433871293] [2024-12-02 11:52:36,371 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:52:36,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:52:36,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:52:37,094 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 55 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:52:37,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:52:37,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433871293] [2024-12-02 11:52:37,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433871293] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:52:37,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [39078081] [2024-12-02 11:52:37,095 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:52:37,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:52:37,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:52:37,097 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:52:37,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-02 11:52:37,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:52:37,248 INFO L256 TraceCheckSpWp]: Trace formula consists of 621 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-12-02 11:52:37,250 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:52:38,199 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 42 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:52:38,199 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:52:40,239 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 39 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:52:40,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [39078081] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:52:40,240 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:52:40,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11, 11] total 34 [2024-12-02 11:52:40,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883540720] [2024-12-02 11:52:40,240 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:52:40,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-12-02 11:52:40,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:52:40,241 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-12-02 11:52:40,241 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=1072, Unknown=0, NotChecked=0, Total=1190 [2024-12-02 11:52:40,241 INFO L87 Difference]: Start difference. First operand 62940 states and 77205 transitions. Second operand has 35 states, 35 states have (on average 11.2) internal successors, (392), 34 states have internal predecessors, (392), 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 11:52:57,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:52:57,565 INFO L93 Difference]: Finished difference Result 155011 states and 189424 transitions. [2024-12-02 11:52:57,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2024-12-02 11:52:57,566 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 11.2) internal successors, (392), 34 states have internal predecessors, (392), 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 144 [2024-12-02 11:52:57,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:52:57,650 INFO L225 Difference]: With dead ends: 155011 [2024-12-02 11:52:57,650 INFO L226 Difference]: Without dead ends: 103138 [2024-12-02 11:52:57,673 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5723 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=3251, Invalid=15931, Unknown=0, NotChecked=0, Total=19182 [2024-12-02 11:52:57,673 INFO L435 NwaCegarLoop]: 1560 mSDtfsCounter, 29312 mSDsluCounter, 14932 mSDsCounter, 0 mSdLazyCounter, 2703 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29312 SdHoareTripleChecker+Valid, 16492 SdHoareTripleChecker+Invalid, 2784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 2703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-12-02 11:52:57,674 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29312 Valid, 16492 Invalid, 2784 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [81 Valid, 2703 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-12-02 11:52:57,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103138 states. [2024-12-02 11:53:04,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103138 to 84844. [2024-12-02 11:53:04,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84844 states, 84842 states have (on average 1.2178991537210344) internal successors, (103329), 84843 states have internal predecessors, (103329), 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 11:53:04,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84844 states to 84844 states and 103329 transitions. [2024-12-02 11:53:04,857 INFO L78 Accepts]: Start accepts. Automaton has 84844 states and 103329 transitions. Word has length 144 [2024-12-02 11:53:04,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:53:04,858 INFO L471 AbstractCegarLoop]: Abstraction has 84844 states and 103329 transitions. [2024-12-02 11:53:04,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 11.2) internal successors, (392), 34 states have internal predecessors, (392), 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 11:53:04,858 INFO L276 IsEmpty]: Start isEmpty. Operand 84844 states and 103329 transitions. [2024-12-02 11:53:04,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-12-02 11:53:04,863 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:53:04,863 INFO L218 NwaCegarLoop]: trace histogram [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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:53:04,870 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-12-02 11:53:05,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:53:05,064 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:53:05,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:53:05,064 INFO L85 PathProgramCache]: Analyzing trace with hash 148767320, now seen corresponding path program 1 times [2024-12-02 11:53:05,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:53:05,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002711894] [2024-12-02 11:53:05,064 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:53:05,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:53:05,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:53:06,076 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 41 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:53:06,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:53:06,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002711894] [2024-12-02 11:53:06,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002711894] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:53:06,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [263340117] [2024-12-02 11:53:06,076 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:53:06,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:53:06,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:53:06,078 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:53:06,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-12-02 11:53:06,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:53:06,225 INFO L256 TraceCheckSpWp]: Trace formula consists of 623 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-12-02 11:53:06,227 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:53:07,128 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 29 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:53:07,128 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:53:09,160 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 24 proven. 96 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:53:09,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [263340117] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:53:09,160 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:53:09,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 11, 11] total 35 [2024-12-02 11:53:09,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408636527] [2024-12-02 11:53:09,160 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:53:09,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-12-02 11:53:09,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:53:09,161 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-12-02 11:53:09,161 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=1138, Unknown=0, NotChecked=0, Total=1260 [2024-12-02 11:53:09,161 INFO L87 Difference]: Start difference. First operand 84844 states and 103329 transitions. Second operand has 36 states, 36 states have (on average 11.333333333333334) internal successors, (408), 35 states have internal predecessors, (408), 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 11:53:27,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:53:27,108 INFO L93 Difference]: Finished difference Result 158296 states and 194211 transitions. [2024-12-02 11:53:27,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2024-12-02 11:53:27,109 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 11.333333333333334) internal successors, (408), 35 states have internal predecessors, (408), 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 144 [2024-12-02 11:53:27,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:53:27,189 INFO L225 Difference]: With dead ends: 158296 [2024-12-02 11:53:27,189 INFO L226 Difference]: Without dead ends: 100398 [2024-12-02 11:53:27,213 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5614 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=3311, Invalid=16149, Unknown=0, NotChecked=0, Total=19460 [2024-12-02 11:53:27,214 INFO L435 NwaCegarLoop]: 1555 mSDtfsCounter, 33884 mSDsluCounter, 13240 mSDsCounter, 0 mSdLazyCounter, 2413 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33884 SdHoareTripleChecker+Valid, 14795 SdHoareTripleChecker+Invalid, 2502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 2413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-12-02 11:53:27,214 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33884 Valid, 14795 Invalid, 2502 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [89 Valid, 2413 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-12-02 11:53:27,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100398 states. [2024-12-02 11:53:33,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100398 to 63680. [2024-12-02 11:53:33,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63680 states, 63678 states have (on average 1.2084707434278714) internal successors, (76953), 63679 states have internal predecessors, (76953), 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 11:53:33,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63680 states to 63680 states and 76953 transitions. [2024-12-02 11:53:33,820 INFO L78 Accepts]: Start accepts. Automaton has 63680 states and 76953 transitions. Word has length 144 [2024-12-02 11:53:33,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:53:33,821 INFO L471 AbstractCegarLoop]: Abstraction has 63680 states and 76953 transitions. [2024-12-02 11:53:33,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 11.333333333333334) internal successors, (408), 35 states have internal predecessors, (408), 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 11:53:33,821 INFO L276 IsEmpty]: Start isEmpty. Operand 63680 states and 76953 transitions. [2024-12-02 11:53:33,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-12-02 11:53:33,827 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:53:33,827 INFO L218 NwaCegarLoop]: trace histogram [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, 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] [2024-12-02 11:53:33,835 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-12-02 11:53:34,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-12-02 11:53:34,027 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:53:34,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:53:34,028 INFO L85 PathProgramCache]: Analyzing trace with hash 767624872, now seen corresponding path program 1 times [2024-12-02 11:53:34,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:53:34,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035833025] [2024-12-02 11:53:34,028 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:53:34,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:53:34,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:53:34,595 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 16 proven. 106 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:53:34,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:53:34,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035833025] [2024-12-02 11:53:34,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035833025] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:53:34,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [77506607] [2024-12-02 11:53:34,595 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:53:34,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:53:34,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:53:34,597 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:53:34,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0135e6e6-9fb3-4ba9-9432-a2df8c5a0704/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-12-02 11:53:34,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:53:34,769 INFO L256 TraceCheckSpWp]: Trace formula consists of 627 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-12-02 11:53:34,771 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:53:35,671 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 23 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:53:35,671 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:53:37,560 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 16 proven. 106 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:53:37,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [77506607] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:53:37,560 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:53:37,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 27 [2024-12-02 11:53:37,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904844998] [2024-12-02 11:53:37,561 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:53:37,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-12-02 11:53:37,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:53:37,562 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-12-02 11:53:37,562 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=637, Unknown=0, NotChecked=0, Total=756 [2024-12-02 11:53:37,562 INFO L87 Difference]: Start difference. First operand 63680 states and 76953 transitions. Second operand has 28 states, 28 states have (on average 13.214285714285714) internal successors, (370), 27 states have internal predecessors, (370), 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)