./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label00.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_91822362-cbf3-4ef6-87d1-cfb7f10129ab/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91822362-cbf3-4ef6-87d1-cfb7f10129ab/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_91822362-cbf3-4ef6-87d1-cfb7f10129ab/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91822362-cbf3-4ef6-87d1-cfb7f10129ab/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label00.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91822362-cbf3-4ef6-87d1-cfb7f10129ab/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_91822362-cbf3-4ef6-87d1-cfb7f10129ab/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 958778a599a0592241cec2803e04add83a2302d606be24f73b4e8727645b338d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 12:36:05,128 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 12:36:05,180 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91822362-cbf3-4ef6-87d1-cfb7f10129ab/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 12:36:05,184 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 12:36:05,184 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 12:36:05,203 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 12:36:05,204 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 12:36:05,204 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 12:36:05,204 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 12:36:05,205 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 12:36:05,205 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 12:36:05,205 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 12:36:05,205 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 12:36:05,205 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 12:36:05,205 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 12:36:05,206 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 12:36:05,206 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 12:36:05,206 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 12:36:05,206 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 12:36:05,206 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 12:36:05,206 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 12:36:05,206 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 12:36:05,206 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 12:36:05,206 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 12:36:05,206 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 12:36:05,206 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 12:36:05,207 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 12:36:05,207 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 12:36:05,207 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 12:36:05,207 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:36:05,207 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:36:05,207 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:36:05,207 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:36:05,207 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 12:36:05,207 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:36:05,208 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:36:05,208 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:36:05,208 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:36:05,208 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 12:36:05,208 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 12:36:05,208 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 12:36:05,208 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 12:36:05,208 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 12:36:05,208 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 12:36:05,208 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 12:36:05,209 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 12:36:05,209 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 12:36:05,209 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 12:36:05,209 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_91822362-cbf3-4ef6-87d1-cfb7f10129ab/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 -> 958778a599a0592241cec2803e04add83a2302d606be24f73b4e8727645b338d [2024-12-02 12:36:05,415 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 12:36:05,422 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 12:36:05,424 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 12:36:05,425 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 12:36:05,426 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 12:36:05,427 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91822362-cbf3-4ef6-87d1-cfb7f10129ab/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/combinations/pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label00.c [2024-12-02 12:36:08,029 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91822362-cbf3-4ef6-87d1-cfb7f10129ab/bin/uautomizer-verify-84ZbGMXZE1/data/f865b4a86/f7ce388975f1431488c0f01ae40b05fd/FLAGe7a8575d2 [2024-12-02 12:36:08,492 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 12:36:08,493 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91822362-cbf3-4ef6-87d1-cfb7f10129ab/sv-benchmarks/c/combinations/pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label00.c [2024-12-02 12:36:08,531 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91822362-cbf3-4ef6-87d1-cfb7f10129ab/bin/uautomizer-verify-84ZbGMXZE1/data/f865b4a86/f7ce388975f1431488c0f01ae40b05fd/FLAGe7a8575d2 [2024-12-02 12:36:08,593 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91822362-cbf3-4ef6-87d1-cfb7f10129ab/bin/uautomizer-verify-84ZbGMXZE1/data/f865b4a86/f7ce388975f1431488c0f01ae40b05fd [2024-12-02 12:36:08,595 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 12:36:08,596 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 12:36:08,597 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 12:36:08,597 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 12:36:08,602 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 12:36:08,602 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:36:08" (1/1) ... [2024-12-02 12:36:08,603 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@359b11be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:36:08, skipping insertion in model container [2024-12-02 12:36:08,603 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:36:08" (1/1) ... [2024-12-02 12:36:08,692 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 12:36:08,997 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_91822362-cbf3-4ef6-87d1-cfb7f10129ab/sv-benchmarks/c/combinations/pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label00.c[20454,20467] [2024-12-02 12:36:09,027 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_91822362-cbf3-4ef6-87d1-cfb7f10129ab/sv-benchmarks/c/combinations/pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label00.c[22329,22342] [2024-12-02 12:36:09,588 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:36:09,598 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 12:36:09,635 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_91822362-cbf3-4ef6-87d1-cfb7f10129ab/sv-benchmarks/c/combinations/pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label00.c[20454,20467] [2024-12-02 12:36:09,638 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_91822362-cbf3-4ef6-87d1-cfb7f10129ab/sv-benchmarks/c/combinations/pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label00.c[22329,22342] [2024-12-02 12:36:10,050 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:36:10,074 INFO L204 MainTranslator]: Completed translation [2024-12-02 12:36:10,075 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:36:10 WrapperNode [2024-12-02 12:36:10,075 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 12:36:10,076 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 12:36:10,076 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 12:36:10,076 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 12:36:10,081 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:36:10" (1/1) ... [2024-12-02 12:36:10,139 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:36:10" (1/1) ... [2024-12-02 12:36:10,420 INFO L138 Inliner]: procedures = 39, calls = 24, calls flagged for inlining = 19, calls inlined = 19, statements flattened = 5217 [2024-12-02 12:36:10,421 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 12:36:10,421 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 12:36:10,421 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 12:36:10,421 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 12:36:10,430 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:36:10" (1/1) ... [2024-12-02 12:36:10,431 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:36:10" (1/1) ... [2024-12-02 12:36:10,476 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:36:10" (1/1) ... [2024-12-02 12:36:10,604 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 12:36:10,604 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:36:10" (1/1) ... [2024-12-02 12:36:10,604 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:36:10" (1/1) ... [2024-12-02 12:36:10,763 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:36:10" (1/1) ... [2024-12-02 12:36:10,775 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:36:10" (1/1) ... [2024-12-02 12:36:10,793 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:36:10" (1/1) ... [2024-12-02 12:36:10,820 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:36:10" (1/1) ... [2024-12-02 12:36:10,830 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:36:10" (1/1) ... [2024-12-02 12:36:10,886 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 12:36:10,886 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 12:36:10,886 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 12:36:10,887 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 12:36:10,887 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:36:10" (1/1) ... [2024-12-02 12:36:10,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:36:10,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91822362-cbf3-4ef6-87d1-cfb7f10129ab/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:36:10,913 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91822362-cbf3-4ef6-87d1-cfb7f10129ab/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 12:36:10,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91822362-cbf3-4ef6-87d1-cfb7f10129ab/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 12:36:10,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 12:36:10,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 12:36:10,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 12:36:10,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 12:36:11,042 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 12:36:11,043 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 12:36:15,386 INFO L? ?]: Removed 754 outVars from TransFormulas that were not future-live. [2024-12-02 12:36:15,387 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 12:36:15,413 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 12:36:15,414 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-12-02 12:36:15,414 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:36:15 BoogieIcfgContainer [2024-12-02 12:36:15,414 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 12:36:15,416 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 12:36:15,416 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 12:36:15,419 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 12:36:15,419 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:36:08" (1/3) ... [2024-12-02 12:36:15,420 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57a57f08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:36:15, skipping insertion in model container [2024-12-02 12:36:15,420 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:36:10" (2/3) ... [2024-12-02 12:36:15,420 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57a57f08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:36:15, skipping insertion in model container [2024-12-02 12:36:15,420 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:36:15" (3/3) ... [2024-12-02 12:36:15,421 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label00.c [2024-12-02 12:36:15,435 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 12:36:15,437 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label00.c that has 1 procedures, 932 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-12-02 12:36:15,511 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 12:36:15,521 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;@18e81a9e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 12:36:15,521 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-02 12:36:15,528 INFO L276 IsEmpty]: Start isEmpty. Operand has 932 states, 929 states have (on average 1.9031216361679224) internal successors, (1768), 931 states have internal predecessors, (1768), 0 states have call successors, (0), 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 12:36:15,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-12-02 12:36:15,533 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:36:15,534 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:36:15,534 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:36:15,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:36:15,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1691146357, now seen corresponding path program 1 times [2024-12-02 12:36:15,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:36:15,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103465956] [2024-12-02 12:36:15,547 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:36:15,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:36:15,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:36:15,771 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 12:36:15,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:36:15,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103465956] [2024-12-02 12:36:15,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103465956] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:36:15,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:36:15,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 12:36:15,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959797517] [2024-12-02 12:36:15,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:36:15,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:36:15,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:36:15,796 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:36:15,797 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:36:15,801 INFO L87 Difference]: Start difference. First operand has 932 states, 929 states have (on average 1.9031216361679224) internal successors, (1768), 931 states have internal predecessors, (1768), 0 states have call successors, (0), 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 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 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 12:36:18,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:36:18,910 INFO L93 Difference]: Finished difference Result 2561 states and 4928 transitions. [2024-12-02 12:36:18,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:36:18,911 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 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 16 [2024-12-02 12:36:18,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:36:18,926 INFO L225 Difference]: With dead ends: 2561 [2024-12-02 12:36:18,927 INFO L226 Difference]: Without dead ends: 1617 [2024-12-02 12:36:18,930 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:36:18,932 INFO L435 NwaCegarLoop]: 668 mSDtfsCounter, 1015 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 2334 mSolverCounterSat, 651 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1015 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 2985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 651 IncrementalHoareTripleChecker+Valid, 2334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:36:18,932 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1015 Valid, 679 Invalid, 2985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [651 Valid, 2334 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-12-02 12:36:18,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1617 states. [2024-12-02 12:36:18,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1617 to 1617. [2024-12-02 12:36:19,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 1615 states have (on average 1.648297213622291) internal successors, (2662), 1616 states have internal predecessors, (2662), 0 states have call successors, (0), 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 12:36:19,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2662 transitions. [2024-12-02 12:36:19,014 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2662 transitions. Word has length 16 [2024-12-02 12:36:19,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:36:19,014 INFO L471 AbstractCegarLoop]: Abstraction has 1617 states and 2662 transitions. [2024-12-02 12:36:19,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 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 12:36:19,015 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2662 transitions. [2024-12-02 12:36:19,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-12-02 12:36:19,016 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:36:19,016 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] [2024-12-02 12:36:19,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 12:36:19,017 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:36:19,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:36:19,017 INFO L85 PathProgramCache]: Analyzing trace with hash 189926458, now seen corresponding path program 1 times [2024-12-02 12:36:19,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:36:19,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802701183] [2024-12-02 12:36:19,018 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:36:19,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:36:19,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:36:19,213 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 12:36:19,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:36:19,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802701183] [2024-12-02 12:36:19,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802701183] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:36:19,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:36:19,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:36:19,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035282190] [2024-12-02 12:36:19,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:36:19,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:36:19,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:36:19,215 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:36:19,215 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:36:19,215 INFO L87 Difference]: Start difference. First operand 1617 states and 2662 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 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 12:36:19,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:36:19,291 INFO L93 Difference]: Finished difference Result 1677 states and 2756 transitions. [2024-12-02 12:36:19,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:36:19,291 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 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 28 [2024-12-02 12:36:19,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:36:19,295 INFO L225 Difference]: With dead ends: 1677 [2024-12-02 12:36:19,295 INFO L226 Difference]: Without dead ends: 1617 [2024-12-02 12:36:19,296 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 12:36:19,297 INFO L435 NwaCegarLoop]: 1633 mSDtfsCounter, 0 mSDsluCounter, 4844 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6477 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:36:19,297 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6477 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:36:19,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1617 states. [2024-12-02 12:36:19,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1617 to 1617. [2024-12-02 12:36:19,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 1615 states have (on average 1.6173374613003095) internal successors, (2612), 1616 states have internal predecessors, (2612), 0 states have call successors, (0), 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 12:36:19,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2612 transitions. [2024-12-02 12:36:19,320 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2612 transitions. Word has length 28 [2024-12-02 12:36:19,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:36:19,320 INFO L471 AbstractCegarLoop]: Abstraction has 1617 states and 2612 transitions. [2024-12-02 12:36:19,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 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 12:36:19,320 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2612 transitions. [2024-12-02 12:36:19,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-12-02 12:36:19,322 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:36:19,322 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:36:19,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 12:36:19,323 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:36:19,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:36:19,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1109970983, now seen corresponding path program 1 times [2024-12-02 12:36:19,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:36:19,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102827425] [2024-12-02 12:36:19,324 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:36:19,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:36:19,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:36:19,551 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 12:36:19,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:36:19,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102827425] [2024-12-02 12:36:19,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102827425] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:36:19,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:36:19,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 12:36:19,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236797081] [2024-12-02 12:36:19,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:36:19,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 12:36:19,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:36:19,552 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 12:36:19,552 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 12:36:19,552 INFO L87 Difference]: Start difference. First operand 1617 states and 2612 transitions. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 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 12:36:19,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:36:19,958 INFO L93 Difference]: Finished difference Result 2401 states and 3872 transitions. [2024-12-02 12:36:19,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 12:36:19,958 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 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 77 [2024-12-02 12:36:19,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:36:19,967 INFO L225 Difference]: With dead ends: 2401 [2024-12-02 12:36:19,967 INFO L226 Difference]: Without dead ends: 2345 [2024-12-02 12:36:19,969 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2024-12-02 12:36:19,969 INFO L435 NwaCegarLoop]: 1579 mSDtfsCounter, 11614 mSDsluCounter, 2746 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11614 SdHoareTripleChecker+Valid, 4325 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 12:36:19,970 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11614 Valid, 4325 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 12:36:19,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2345 states. [2024-12-02 12:36:20,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2345 to 1671. [2024-12-02 12:36:20,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1671 states, 1669 states have (on average 1.6171360095865788) internal successors, (2699), 1670 states have internal predecessors, (2699), 0 states have call successors, (0), 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 12:36:20,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1671 states to 1671 states and 2699 transitions. [2024-12-02 12:36:20,018 INFO L78 Accepts]: Start accepts. Automaton has 1671 states and 2699 transitions. Word has length 77 [2024-12-02 12:36:20,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:36:20,019 INFO L471 AbstractCegarLoop]: Abstraction has 1671 states and 2699 transitions. [2024-12-02 12:36:20,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 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 12:36:20,019 INFO L276 IsEmpty]: Start isEmpty. Operand 1671 states and 2699 transitions. [2024-12-02 12:36:20,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-12-02 12:36:20,021 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:36:20,021 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:36:20,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 12:36:20,021 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:36:20,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:36:20,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1349050793, now seen corresponding path program 1 times [2024-12-02 12:36:20,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:36:20,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231363655] [2024-12-02 12:36:20,022 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:36:20,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:36:20,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:36:20,151 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 12:36:20,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:36:20,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231363655] [2024-12-02 12:36:20,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231363655] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:36:20,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:36:20,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:36:20,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82394384] [2024-12-02 12:36:20,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:36:20,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:36:20,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:36:20,152 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:36:20,153 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:36:20,153 INFO L87 Difference]: Start difference. First operand 1671 states and 2699 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 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 12:36:20,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:36:20,200 INFO L93 Difference]: Finished difference Result 1880 states and 3034 transitions. [2024-12-02 12:36:20,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:36:20,200 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 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 12:36:20,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:36:20,207 INFO L225 Difference]: With dead ends: 1880 [2024-12-02 12:36:20,207 INFO L226 Difference]: Without dead ends: 1770 [2024-12-02 12:36:20,208 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 12:36:20,208 INFO L435 NwaCegarLoop]: 1581 mSDtfsCounter, 1500 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1500 SdHoareTripleChecker+Valid, 1664 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:36:20,209 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1500 Valid, 1664 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:36:20,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1770 states. [2024-12-02 12:36:20,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1770 to 1766. [2024-12-02 12:36:20,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1766 states, 1764 states have (on average 1.6150793650793651) internal successors, (2849), 1765 states have internal predecessors, (2849), 0 states have call successors, (0), 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 12:36:20,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1766 states to 1766 states and 2849 transitions. [2024-12-02 12:36:20,254 INFO L78 Accepts]: Start accepts. Automaton has 1766 states and 2849 transitions. Word has length 79 [2024-12-02 12:36:20,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:36:20,254 INFO L471 AbstractCegarLoop]: Abstraction has 1766 states and 2849 transitions. [2024-12-02 12:36:20,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 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 12:36:20,254 INFO L276 IsEmpty]: Start isEmpty. Operand 1766 states and 2849 transitions. [2024-12-02 12:36:20,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-12-02 12:36:20,255 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:36:20,255 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:36:20,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 12:36:20,256 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:36:20,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:36:20,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1415544305, now seen corresponding path program 1 times [2024-12-02 12:36:20,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:36:20,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408671842] [2024-12-02 12:36:20,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:36:20,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:36:20,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:36:20,690 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 12:36:20,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:36:20,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408671842] [2024-12-02 12:36:20,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408671842] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:36:20,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:36:20,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 12:36:20,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835144101] [2024-12-02 12:36:20,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:36:20,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 12:36:20,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:36:20,692 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 12:36:20,692 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 12:36:20,693 INFO L87 Difference]: Start difference. First operand 1766 states and 2849 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 0 states have call successors, (0), 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 12:36:21,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:36:21,042 INFO L93 Difference]: Finished difference Result 1973 states and 3177 transitions. [2024-12-02 12:36:21,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 12:36:21,043 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 0 states have call successors, (0), 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 12:36:21,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:36:21,049 INFO L225 Difference]: With dead ends: 1973 [2024-12-02 12:36:21,049 INFO L226 Difference]: Without dead ends: 1768 [2024-12-02 12:36:21,050 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2024-12-02 12:36:21,051 INFO L435 NwaCegarLoop]: 1577 mSDtfsCounter, 6068 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6068 SdHoareTripleChecker+Valid, 2102 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:36:21,051 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6068 Valid, 2102 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:36:21,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1768 states. [2024-12-02 12:36:21,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1768 to 1766. [2024-12-02 12:36:21,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1766 states, 1764 states have (on average 1.6139455782312926) internal successors, (2847), 1765 states have internal predecessors, (2847), 0 states have call successors, (0), 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 12:36:21,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1766 states to 1766 states and 2847 transitions. [2024-12-02 12:36:21,094 INFO L78 Accepts]: Start accepts. Automaton has 1766 states and 2847 transitions. Word has length 79 [2024-12-02 12:36:21,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:36:21,095 INFO L471 AbstractCegarLoop]: Abstraction has 1766 states and 2847 transitions. [2024-12-02 12:36:21,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 0 states have call successors, (0), 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 12:36:21,095 INFO L276 IsEmpty]: Start isEmpty. Operand 1766 states and 2847 transitions. [2024-12-02 12:36:21,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-12-02 12:36:21,096 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:36:21,096 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:36:21,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 12:36:21,096 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:36:21,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:36:21,097 INFO L85 PathProgramCache]: Analyzing trace with hash 517477589, now seen corresponding path program 1 times [2024-12-02 12:36:21,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:36:21,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396611339] [2024-12-02 12:36:21,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:36:21,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:36:21,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:36:21,415 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 12:36:21,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:36:21,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396611339] [2024-12-02 12:36:21,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396611339] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:36:21,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:36:21,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 12:36:21,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496276035] [2024-12-02 12:36:21,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:36:21,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 12:36:21,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:36:21,416 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 12:36:21,416 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 12:36:21,416 INFO L87 Difference]: Start difference. First operand 1766 states and 2847 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 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 12:36:21,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:36:21,492 INFO L93 Difference]: Finished difference Result 1774 states and 2856 transitions. [2024-12-02 12:36:21,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 12:36:21,493 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 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 12:36:21,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:36:21,499 INFO L225 Difference]: With dead ends: 1774 [2024-12-02 12:36:21,500 INFO L226 Difference]: Without dead ends: 1772 [2024-12-02 12:36:21,500 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 12:36:21,501 INFO L435 NwaCegarLoop]: 1579 mSDtfsCounter, 0 mSDsluCounter, 9461 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11040 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 12:36:21,501 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11040 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:36:21,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1772 states. [2024-12-02 12:36:21,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1772 to 1772. [2024-12-02 12:36:21,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1772 states, 1770 states have (on average 1.6112994350282486) internal successors, (2852), 1771 states have internal predecessors, (2852), 0 states have call successors, (0), 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 12:36:21,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1772 states to 1772 states and 2852 transitions. [2024-12-02 12:36:21,542 INFO L78 Accepts]: Start accepts. Automaton has 1772 states and 2852 transitions. Word has length 80 [2024-12-02 12:36:21,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:36:21,542 INFO L471 AbstractCegarLoop]: Abstraction has 1772 states and 2852 transitions. [2024-12-02 12:36:21,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 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 12:36:21,542 INFO L276 IsEmpty]: Start isEmpty. Operand 1772 states and 2852 transitions. [2024-12-02 12:36:21,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-12-02 12:36:21,543 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:36:21,543 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:36:21,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 12:36:21,543 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:36:21,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:36:21,544 INFO L85 PathProgramCache]: Analyzing trace with hash -927531695, now seen corresponding path program 1 times [2024-12-02 12:36:21,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:36:21,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621808691] [2024-12-02 12:36:21,544 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:36:21,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:36:21,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:36:21,617 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 12:36:21,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:36:21,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621808691] [2024-12-02 12:36:21,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621808691] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:36:21,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:36:21,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:36:21,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7054565] [2024-12-02 12:36:21,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:36:21,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:36:21,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:36:21,618 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:36:21,618 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:36:21,618 INFO L87 Difference]: Start difference. First operand 1772 states and 2852 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 12:36:21,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:36:21,655 INFO L93 Difference]: Finished difference Result 2178 states and 3484 transitions. [2024-12-02 12:36:21,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:36:21,656 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 12:36:21,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:36:21,662 INFO L225 Difference]: With dead ends: 2178 [2024-12-02 12:36:21,663 INFO L226 Difference]: Without dead ends: 1967 [2024-12-02 12:36:21,664 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 12:36:21,664 INFO L435 NwaCegarLoop]: 1652 mSDtfsCounter, 1517 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1517 SdHoareTripleChecker+Valid, 1747 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 12:36:21,664 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1517 Valid, 1747 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:36:21,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1967 states. [2024-12-02 12:36:21,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1967 to 1965. [2024-12-02 12:36:21,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1965 states, 1963 states have (on average 1.6041772796739684) internal successors, (3149), 1964 states have internal predecessors, (3149), 0 states have call successors, (0), 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 12:36:21,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1965 states to 1965 states and 3149 transitions. [2024-12-02 12:36:21,711 INFO L78 Accepts]: Start accepts. Automaton has 1965 states and 3149 transitions. Word has length 81 [2024-12-02 12:36:21,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:36:21,711 INFO L471 AbstractCegarLoop]: Abstraction has 1965 states and 3149 transitions. [2024-12-02 12:36:21,711 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 12:36:21,711 INFO L276 IsEmpty]: Start isEmpty. Operand 1965 states and 3149 transitions. [2024-12-02 12:36:21,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-12-02 12:36:21,712 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:36:21,712 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:36:21,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 12:36:21,713 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:36:21,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:36:21,713 INFO L85 PathProgramCache]: Analyzing trace with hash -764617135, now seen corresponding path program 1 times [2024-12-02 12:36:21,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:36:21,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458530424] [2024-12-02 12:36:21,713 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:36:21,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:36:21,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:36:21,785 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 12:36:21,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:36:21,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458530424] [2024-12-02 12:36:21,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458530424] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:36:21,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:36:21,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:36:21,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15555552] [2024-12-02 12:36:21,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:36:21,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:36:21,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:36:21,786 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:36:21,786 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:36:21,786 INFO L87 Difference]: Start difference. First operand 1965 states and 3149 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 12:36:21,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:36:21,832 INFO L93 Difference]: Finished difference Result 2741 states and 4347 transitions. [2024-12-02 12:36:21,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:36:21,833 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 12:36:21,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:36:21,840 INFO L225 Difference]: With dead ends: 2741 [2024-12-02 12:36:21,840 INFO L226 Difference]: Without dead ends: 2337 [2024-12-02 12:36:21,842 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 12:36:21,842 INFO L435 NwaCegarLoop]: 1650 mSDtfsCounter, 1515 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1515 SdHoareTripleChecker+Valid, 1749 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 12:36:21,842 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1515 Valid, 1749 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:36:21,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2337 states. [2024-12-02 12:36:21,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2337 to 2335. [2024-12-02 12:36:21,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2335 states, 2333 states have (on average 1.5906558079725674) internal successors, (3711), 2334 states have internal predecessors, (3711), 0 states have call successors, (0), 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 12:36:21,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2335 states to 2335 states and 3711 transitions. [2024-12-02 12:36:21,902 INFO L78 Accepts]: Start accepts. Automaton has 2335 states and 3711 transitions. Word has length 81 [2024-12-02 12:36:21,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:36:21,902 INFO L471 AbstractCegarLoop]: Abstraction has 2335 states and 3711 transitions. [2024-12-02 12:36:21,902 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 12:36:21,902 INFO L276 IsEmpty]: Start isEmpty. Operand 2335 states and 3711 transitions. [2024-12-02 12:36:21,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-12-02 12:36:21,903 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:36:21,903 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:36:21,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 12:36:21,903 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:36:21,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:36:21,904 INFO L85 PathProgramCache]: Analyzing trace with hash 737501265, now seen corresponding path program 1 times [2024-12-02 12:36:21,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:36:21,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050812994] [2024-12-02 12:36:21,904 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:36:21,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:36:21,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:36:21,976 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 12:36:21,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:36:21,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050812994] [2024-12-02 12:36:21,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050812994] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:36:21,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:36:21,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:36:21,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397861932] [2024-12-02 12:36:21,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:36:21,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:36:21,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:36:21,977 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:36:21,977 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:36:21,977 INFO L87 Difference]: Start difference. First operand 2335 states and 3711 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 12:36:22,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:36:22,030 INFO L93 Difference]: Finished difference Result 3819 states and 5977 transitions. [2024-12-02 12:36:22,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:36:22,031 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 12:36:22,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:36:22,040 INFO L225 Difference]: With dead ends: 3819 [2024-12-02 12:36:22,040 INFO L226 Difference]: Without dead ends: 3045 [2024-12-02 12:36:22,042 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 12:36:22,043 INFO L435 NwaCegarLoop]: 1638 mSDtfsCounter, 1511 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1511 SdHoareTripleChecker+Valid, 1745 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 12:36:22,043 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1511 Valid, 1745 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:36:22,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3045 states. [2024-12-02 12:36:22,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3045 to 3043. [2024-12-02 12:36:22,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3043 states, 3041 states have (on average 1.568891811903979) internal successors, (4771), 3042 states have internal predecessors, (4771), 0 states have call successors, (0), 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 12:36:22,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3043 states to 3043 states and 4771 transitions. [2024-12-02 12:36:22,123 INFO L78 Accepts]: Start accepts. Automaton has 3043 states and 4771 transitions. Word has length 81 [2024-12-02 12:36:22,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:36:22,124 INFO L471 AbstractCegarLoop]: Abstraction has 3043 states and 4771 transitions. [2024-12-02 12:36:22,124 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 12:36:22,124 INFO L276 IsEmpty]: Start isEmpty. Operand 3043 states and 4771 transitions. [2024-12-02 12:36:22,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-12-02 12:36:22,125 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:36:22,125 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:36:22,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 12:36:22,125 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:36:22,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:36:22,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1477967535, now seen corresponding path program 1 times [2024-12-02 12:36:22,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:36:22,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55273289] [2024-12-02 12:36:22,126 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:36:22,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:36:22,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:36:22,190 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 12:36:22,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:36:22,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55273289] [2024-12-02 12:36:22,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55273289] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:36:22,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:36:22,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:36:22,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504942185] [2024-12-02 12:36:22,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:36:22,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:36:22,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:36:22,191 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:36:22,191 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:36:22,191 INFO L87 Difference]: Start difference. First operand 3043 states and 4771 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 12:36:22,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:36:22,273 INFO L93 Difference]: Finished difference Result 5879 states and 9045 transitions. [2024-12-02 12:36:22,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:36:22,274 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 12:36:22,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:36:22,288 INFO L225 Difference]: With dead ends: 5879 [2024-12-02 12:36:22,288 INFO L226 Difference]: Without dead ends: 4397 [2024-12-02 12:36:22,290 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 12:36:22,291 INFO L435 NwaCegarLoop]: 1636 mSDtfsCounter, 1509 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1509 SdHoareTripleChecker+Valid, 1747 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 12:36:22,291 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1509 Valid, 1747 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:36:22,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4397 states. [2024-12-02 12:36:22,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4397 to 4395. [2024-12-02 12:36:22,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4395 states, 4393 states have (on average 1.539494650580469) internal successors, (6763), 4394 states have internal predecessors, (6763), 0 states have call successors, (0), 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 12:36:22,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4395 states to 4395 states and 6763 transitions. [2024-12-02 12:36:22,413 INFO L78 Accepts]: Start accepts. Automaton has 4395 states and 6763 transitions. Word has length 81 [2024-12-02 12:36:22,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:36:22,413 INFO L471 AbstractCegarLoop]: Abstraction has 4395 states and 6763 transitions. [2024-12-02 12:36:22,413 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 12:36:22,413 INFO L276 IsEmpty]: Start isEmpty. Operand 4395 states and 6763 transitions. [2024-12-02 12:36:22,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-12-02 12:36:22,414 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:36:22,414 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:36:22,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 12:36:22,415 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:36:22,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:36:22,415 INFO L85 PathProgramCache]: Analyzing trace with hash 302965329, now seen corresponding path program 1 times [2024-12-02 12:36:22,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:36:22,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515955915] [2024-12-02 12:36:22,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:36:22,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:36:22,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:36:22,522 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 12:36:22,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:36:22,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515955915] [2024-12-02 12:36:22,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515955915] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:36:22,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:36:22,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:36:22,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954123374] [2024-12-02 12:36:22,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:36:22,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:36:22,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:36:22,523 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:36:22,523 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:36:22,523 INFO L87 Difference]: Start difference. First operand 4395 states and 6763 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 12:36:22,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:36:22,638 INFO L93 Difference]: Finished difference Result 9807 states and 14797 transitions. [2024-12-02 12:36:22,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:36:22,638 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 12:36:22,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:36:22,658 INFO L225 Difference]: With dead ends: 9807 [2024-12-02 12:36:22,658 INFO L226 Difference]: Without dead ends: 6973 [2024-12-02 12:36:22,662 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 12:36:22,663 INFO L435 NwaCegarLoop]: 1634 mSDtfsCounter, 1507 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 1749 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 12:36:22,663 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1507 Valid, 1749 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:36:22,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6973 states. [2024-12-02 12:36:22,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6973 to 6971. [2024-12-02 12:36:22,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6971 states, 6969 states have (on average 1.5053809728798966) internal successors, (10491), 6970 states have internal predecessors, (10491), 0 states have call successors, (0), 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 12:36:22,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6971 states to 6971 states and 10491 transitions. [2024-12-02 12:36:22,851 INFO L78 Accepts]: Start accepts. Automaton has 6971 states and 10491 transitions. Word has length 81 [2024-12-02 12:36:22,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:36:22,851 INFO L471 AbstractCegarLoop]: Abstraction has 6971 states and 10491 transitions. [2024-12-02 12:36:22,851 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 12:36:22,851 INFO L276 IsEmpty]: Start isEmpty. Operand 6971 states and 10491 transitions. [2024-12-02 12:36:22,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-12-02 12:36:22,852 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:36:22,852 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:36:22,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 12:36:22,852 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:36:22,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:36:22,853 INFO L85 PathProgramCache]: Analyzing trace with hash -500760751, now seen corresponding path program 1 times [2024-12-02 12:36:22,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:36:22,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343939576] [2024-12-02 12:36:22,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:36:22,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:36:22,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:36:22,918 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 12:36:22,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:36:22,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343939576] [2024-12-02 12:36:22,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343939576] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:36:22,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:36:22,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:36:22,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673892362] [2024-12-02 12:36:22,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:36:22,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:36:22,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:36:22,919 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:36:22,919 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:36:22,919 INFO L87 Difference]: Start difference. First operand 6971 states and 10491 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 12:36:23,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:36:23,092 INFO L93 Difference]: Finished difference Result 17279 states and 25533 transitions. [2024-12-02 12:36:23,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:36:23,093 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 12:36:23,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:36:23,124 INFO L225 Difference]: With dead ends: 17279 [2024-12-02 12:36:23,124 INFO L226 Difference]: Without dead ends: 11869 [2024-12-02 12:36:23,131 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 12:36:23,132 INFO L435 NwaCegarLoop]: 1648 mSDtfsCounter, 1513 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1513 SdHoareTripleChecker+Valid, 1751 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 12:36:23,132 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1513 Valid, 1751 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:36:23,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11869 states. [2024-12-02 12:36:23,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11869 to 11867. [2024-12-02 12:36:23,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11867 states, 11865 states have (on average 1.4694479561736198) internal successors, (17435), 11866 states have internal predecessors, (17435), 0 states have call successors, (0), 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 12:36:23,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11867 states to 11867 states and 17435 transitions. [2024-12-02 12:36:23,438 INFO L78 Accepts]: Start accepts. Automaton has 11867 states and 17435 transitions. Word has length 81 [2024-12-02 12:36:23,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:36:23,438 INFO L471 AbstractCegarLoop]: Abstraction has 11867 states and 17435 transitions. [2024-12-02 12:36:23,439 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 12:36:23,439 INFO L276 IsEmpty]: Start isEmpty. Operand 11867 states and 17435 transitions. [2024-12-02 12:36:23,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-12-02 12:36:23,440 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:36:23,440 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:36:23,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 12:36:23,440 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:36:23,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:36:23,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1125158260, now seen corresponding path program 1 times [2024-12-02 12:36:23,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:36:23,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284599949] [2024-12-02 12:36:23,441 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:36:23,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:36:23,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:36:23,510 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 12:36:23,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:36:23,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284599949] [2024-12-02 12:36:23,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284599949] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:36:23,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:36:23,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:36:23,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791776521] [2024-12-02 12:36:23,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:36:23,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:36:23,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:36:23,512 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:36:23,512 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:36:23,512 INFO L87 Difference]: Start difference. First operand 11867 states and 17435 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 12:36:23,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:36:23,809 INFO L93 Difference]: Finished difference Result 22626 states and 33185 transitions. [2024-12-02 12:36:23,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:36:23,810 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-12-02 12:36:23,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:36:23,844 INFO L225 Difference]: With dead ends: 22626 [2024-12-02 12:36:23,844 INFO L226 Difference]: Without dead ends: 16863 [2024-12-02 12:36:23,853 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 12:36:23,853 INFO L435 NwaCegarLoop]: 1657 mSDtfsCounter, 1516 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1516 SdHoareTripleChecker+Valid, 1748 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 12:36:23,853 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1516 Valid, 1748 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:36:23,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16863 states. [2024-12-02 12:36:24,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16863 to 16861. [2024-12-02 12:36:24,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16861 states, 16859 states have (on average 1.455661664392906) internal successors, (24541), 16860 states have internal predecessors, (24541), 0 states have call successors, (0), 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 12:36:24,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16861 states to 16861 states and 24541 transitions. [2024-12-02 12:36:24,258 INFO L78 Accepts]: Start accepts. Automaton has 16861 states and 24541 transitions. Word has length 83 [2024-12-02 12:36:24,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:36:24,258 INFO L471 AbstractCegarLoop]: Abstraction has 16861 states and 24541 transitions. [2024-12-02 12:36:24,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 12:36:24,259 INFO L276 IsEmpty]: Start isEmpty. Operand 16861 states and 24541 transitions. [2024-12-02 12:36:24,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-12-02 12:36:24,259 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:36:24,260 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] [2024-12-02 12:36:24,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 12:36:24,260 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:36:24,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:36:24,260 INFO L85 PathProgramCache]: Analyzing trace with hash 422883728, now seen corresponding path program 1 times [2024-12-02 12:36:24,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:36:24,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823556843] [2024-12-02 12:36:24,260 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:36:24,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:36:24,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:36:24,340 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:36:24,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:36:24,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823556843] [2024-12-02 12:36:24,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823556843] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:36:24,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:36:24,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:36:24,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152688134] [2024-12-02 12:36:24,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:36:24,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:36:24,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:36:24,341 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:36:24,341 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:36:24,341 INFO L87 Difference]: Start difference. First operand 16861 states and 24541 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 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 12:36:27,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:36:27,348 INFO L93 Difference]: Finished difference Result 19867 states and 29468 transitions. [2024-12-02 12:36:27,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:36:27,348 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 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 87 [2024-12-02 12:36:27,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:36:27,371 INFO L225 Difference]: With dead ends: 19867 [2024-12-02 12:36:27,371 INFO L226 Difference]: Without dead ends: 18363 [2024-12-02 12:36:27,374 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 12:36:27,374 INFO L435 NwaCegarLoop]: 1295 mSDtfsCounter, 753 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 2412 mSolverCounterSat, 681 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 753 SdHoareTripleChecker+Valid, 1449 SdHoareTripleChecker+Invalid, 3093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 681 IncrementalHoareTripleChecker+Valid, 2412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-12-02 12:36:27,375 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [753 Valid, 1449 Invalid, 3093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [681 Valid, 2412 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-12-02 12:36:27,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18363 states. [2024-12-02 12:36:27,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18363 to 18363. [2024-12-02 12:36:27,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18363 states, 18361 states have (on average 1.45400577310604) internal successors, (26697), 18362 states have internal predecessors, (26697), 0 states have call successors, (0), 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 12:36:27,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18363 states to 18363 states and 26697 transitions. [2024-12-02 12:36:27,874 INFO L78 Accepts]: Start accepts. Automaton has 18363 states and 26697 transitions. Word has length 87 [2024-12-02 12:36:27,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:36:27,874 INFO L471 AbstractCegarLoop]: Abstraction has 18363 states and 26697 transitions. [2024-12-02 12:36:27,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 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 12:36:27,875 INFO L276 IsEmpty]: Start isEmpty. Operand 18363 states and 26697 transitions. [2024-12-02 12:36:27,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-12-02 12:36:27,876 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:36:27,876 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] [2024-12-02 12:36:27,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 12:36:27,876 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:36:27,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:36:27,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1983493873, now seen corresponding path program 1 times [2024-12-02 12:36:27,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:36:27,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350676102] [2024-12-02 12:36:27,877 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:36:27,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:36:27,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:36:27,991 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:36:27,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:36:27,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350676102] [2024-12-02 12:36:27,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350676102] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:36:27,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:36:27,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 12:36:27,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587309615] [2024-12-02 12:36:27,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:36:27,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:36:27,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:36:27,992 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:36:27,992 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:36:27,992 INFO L87 Difference]: Start difference. First operand 18363 states and 26697 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 0 states have call successors, (0), 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 12:36:31,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:36:31,276 INFO L93 Difference]: Finished difference Result 24375 states and 35937 transitions. [2024-12-02 12:36:31,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:36:31,276 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 0 states have call successors, (0), 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 12:36:31,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:36:31,311 INFO L225 Difference]: With dead ends: 24375 [2024-12-02 12:36:31,311 INFO L226 Difference]: Without dead ends: 21369 [2024-12-02 12:36:31,318 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 12:36:31,319 INFO L435 NwaCegarLoop]: 639 mSDtfsCounter, 872 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2272 mSolverCounterSat, 651 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 872 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 2923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 651 IncrementalHoareTripleChecker+Valid, 2272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-12-02 12:36:31,319 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [872 Valid, 646 Invalid, 2923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [651 Valid, 2272 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-12-02 12:36:31,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21369 states. [2024-12-02 12:36:31,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21369 to 21367. [2024-12-02 12:36:31,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21367 states, 21365 states have (on average 1.4171776269599812) internal successors, (30278), 21366 states have internal predecessors, (30278), 0 states have call successors, (0), 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 12:36:31,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21367 states to 21367 states and 30278 transitions. [2024-12-02 12:36:31,765 INFO L78 Accepts]: Start accepts. Automaton has 21367 states and 30278 transitions. Word has length 90 [2024-12-02 12:36:31,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:36:31,766 INFO L471 AbstractCegarLoop]: Abstraction has 21367 states and 30278 transitions. [2024-12-02 12:36:31,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 0 states have call successors, (0), 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 12:36:31,766 INFO L276 IsEmpty]: Start isEmpty. Operand 21367 states and 30278 transitions. [2024-12-02 12:36:31,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-12-02 12:36:31,767 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:36:31,767 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] [2024-12-02 12:36:31,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 12:36:31,767 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:36:31,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:36:31,768 INFO L85 PathProgramCache]: Analyzing trace with hash 167267098, now seen corresponding path program 1 times [2024-12-02 12:36:31,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:36:31,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477083475] [2024-12-02 12:36:31,768 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:36:31,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:36:31,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:36:31,845 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:36:31,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:36:31,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477083475] [2024-12-02 12:36:31,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477083475] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:36:31,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:36:31,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 12:36:31,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843464777] [2024-12-02 12:36:31,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:36:31,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:36:31,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:36:31,846 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:36:31,846 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:36:31,846 INFO L87 Difference]: Start difference. First operand 21367 states and 30278 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 0 states have call successors, (0), 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 12:36:35,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:36:35,102 INFO L93 Difference]: Finished difference Result 33387 states and 46680 transitions. [2024-12-02 12:36:35,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:36:35,102 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2024-12-02 12:36:35,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:36:35,127 INFO L225 Difference]: With dead ends: 33387 [2024-12-02 12:36:35,127 INFO L226 Difference]: Without dead ends: 27377 [2024-12-02 12:36:35,133 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 12:36:35,134 INFO L435 NwaCegarLoop]: 734 mSDtfsCounter, 1061 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2387 mSolverCounterSat, 550 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1061 SdHoareTripleChecker+Valid, 741 SdHoareTripleChecker+Invalid, 2937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 550 IncrementalHoareTripleChecker+Valid, 2387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-12-02 12:36:35,134 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1061 Valid, 741 Invalid, 2937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [550 Valid, 2387 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-12-02 12:36:35,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27377 states. [2024-12-02 12:36:35,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27377 to 27375. [2024-12-02 12:36:35,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27375 states, 27373 states have (on average 1.368209549556132) internal successors, (37452), 27374 states have internal predecessors, (37452), 0 states have call successors, (0), 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 12:36:35,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27375 states to 27375 states and 37452 transitions. [2024-12-02 12:36:35,558 INFO L78 Accepts]: Start accepts. Automaton has 27375 states and 37452 transitions. Word has length 91 [2024-12-02 12:36:35,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:36:35,558 INFO L471 AbstractCegarLoop]: Abstraction has 27375 states and 37452 transitions. [2024-12-02 12:36:35,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 0 states have call successors, (0), 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 12:36:35,559 INFO L276 IsEmpty]: Start isEmpty. Operand 27375 states and 37452 transitions. [2024-12-02 12:36:35,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-12-02 12:36:35,563 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:36:35,563 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:36:35,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 12:36:35,563 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:36:35,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:36:35,564 INFO L85 PathProgramCache]: Analyzing trace with hash -293163275, now seen corresponding path program 1 times [2024-12-02 12:36:35,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:36:35,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9457285] [2024-12-02 12:36:35,564 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:36:35,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:36:35,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:36:35,775 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 12:36:35,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:36:35,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9457285] [2024-12-02 12:36:35,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9457285] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:36:35,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:36:35,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 12:36:35,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859458547] [2024-12-02 12:36:35,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:36:35,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 12:36:35,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:36:35,777 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 12:36:35,777 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 12:36:35,777 INFO L87 Difference]: Start difference. First operand 27375 states and 37452 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 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 12:36:37,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:36:37,223 INFO L93 Difference]: Finished difference Result 137599 states and 195924 transitions. [2024-12-02 12:36:37,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 12:36:37,223 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 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 104 [2024-12-02 12:36:37,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:36:37,324 INFO L225 Difference]: With dead ends: 137599 [2024-12-02 12:36:37,324 INFO L226 Difference]: Without dead ends: 122301 [2024-12-02 12:36:37,348 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-12-02 12:36:37,349 INFO L435 NwaCegarLoop]: 1675 mSDtfsCounter, 9903 mSDsluCounter, 2770 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9903 SdHoareTripleChecker+Valid, 4445 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:36:37,349 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9903 Valid, 4445 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:36:37,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122301 states. [2024-12-02 12:36:38,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122301 to 42671. [2024-12-02 12:36:38,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42671 states, 42669 states have (on average 1.3892052778363684) internal successors, (59276), 42670 states have internal predecessors, (59276), 0 states have call successors, (0), 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 12:36:38,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42671 states to 42671 states and 59276 transitions. [2024-12-02 12:36:38,282 INFO L78 Accepts]: Start accepts. Automaton has 42671 states and 59276 transitions. Word has length 104 [2024-12-02 12:36:38,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:36:38,282 INFO L471 AbstractCegarLoop]: Abstraction has 42671 states and 59276 transitions. [2024-12-02 12:36:38,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 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 12:36:38,282 INFO L276 IsEmpty]: Start isEmpty. Operand 42671 states and 59276 transitions. [2024-12-02 12:36:38,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-12-02 12:36:38,285 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:36:38,285 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:36:38,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 12:36:38,286 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:36:38,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:36:38,286 INFO L85 PathProgramCache]: Analyzing trace with hash -130248715, now seen corresponding path program 1 times [2024-12-02 12:36:38,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:36:38,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676655841] [2024-12-02 12:36:38,286 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:36:38,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:36:38,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:36:38,600 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 12:36:38,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:36:38,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676655841] [2024-12-02 12:36:38,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676655841] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:36:38,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:36:38,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 12:36:38,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959166835] [2024-12-02 12:36:38,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:36:38,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 12:36:38,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:36:38,601 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 12:36:38,601 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 12:36:38,602 INFO L87 Difference]: Start difference. First operand 42671 states and 59276 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 states have internal predecessors, (99), 0 states have call successors, (0), 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 12:36:40,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:36:40,606 INFO L93 Difference]: Finished difference Result 152895 states and 217748 transitions. [2024-12-02 12:36:40,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 12:36:40,607 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 states have internal predecessors, (99), 0 states have call successors, (0), 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 104 [2024-12-02 12:36:40,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:36:40,742 INFO L225 Difference]: With dead ends: 152895 [2024-12-02 12:36:40,742 INFO L226 Difference]: Without dead ends: 137597 [2024-12-02 12:36:40,771 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-12-02 12:36:40,772 INFO L435 NwaCegarLoop]: 1672 mSDtfsCounter, 9953 mSDsluCounter, 2603 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9953 SdHoareTripleChecker+Valid, 4275 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:36:40,772 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9953 Valid, 4275 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:36:40,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137597 states. [2024-12-02 12:36:42,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137597 to 65647. [2024-12-02 12:36:42,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65647 states, 65645 states have (on average 1.3992230939142356) internal successors, (91852), 65646 states have internal predecessors, (91852), 0 states have call successors, (0), 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 12:36:42,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65647 states to 65647 states and 91852 transitions. [2024-12-02 12:36:42,874 INFO L78 Accepts]: Start accepts. Automaton has 65647 states and 91852 transitions. Word has length 104 [2024-12-02 12:36:42,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:36:42,875 INFO L471 AbstractCegarLoop]: Abstraction has 65647 states and 91852 transitions. [2024-12-02 12:36:42,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 states have internal predecessors, (99), 0 states have call successors, (0), 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 12:36:42,875 INFO L276 IsEmpty]: Start isEmpty. Operand 65647 states and 91852 transitions. [2024-12-02 12:36:42,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-12-02 12:36:42,880 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:36:42,880 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:36:42,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 12:36:42,880 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:36:42,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:36:42,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1371869685, now seen corresponding path program 1 times [2024-12-02 12:36:42,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:36:42,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870744794] [2024-12-02 12:36:42,880 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:36:42,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:36:42,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:36:43,092 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-12-02 12:36:43,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:36:43,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870744794] [2024-12-02 12:36:43,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870744794] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:36:43,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:36:43,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 12:36:43,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413929084] [2024-12-02 12:36:43,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:36:43,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 12:36:43,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:36:43,094 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 12:36:43,094 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 12:36:43,094 INFO L87 Difference]: Start difference. First operand 65647 states and 91852 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 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 12:36:45,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:36:45,307 INFO L93 Difference]: Finished difference Result 168191 states and 239572 transitions. [2024-12-02 12:36:45,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 12:36:45,308 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 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 104 [2024-12-02 12:36:45,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:36:45,445 INFO L225 Difference]: With dead ends: 168191 [2024-12-02 12:36:45,445 INFO L226 Difference]: Without dead ends: 152893 [2024-12-02 12:36:45,473 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-12-02 12:36:45,473 INFO L435 NwaCegarLoop]: 1669 mSDtfsCounter, 10022 mSDsluCounter, 2637 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10022 SdHoareTripleChecker+Valid, 4306 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:36:45,473 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10022 Valid, 4306 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:36:45,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152893 states. [2024-12-02 12:36:47,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152893 to 80943. [2024-12-02 12:36:47,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80943 states, 80941 states have (on average 1.404430387566252) internal successors, (113676), 80942 states have internal predecessors, (113676), 0 states have call successors, (0), 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 12:36:47,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80943 states to 80943 states and 113676 transitions. [2024-12-02 12:36:47,752 INFO L78 Accepts]: Start accepts. Automaton has 80943 states and 113676 transitions. Word has length 104 [2024-12-02 12:36:47,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:36:47,752 INFO L471 AbstractCegarLoop]: Abstraction has 80943 states and 113676 transitions. [2024-12-02 12:36:47,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 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 12:36:47,752 INFO L276 IsEmpty]: Start isEmpty. Operand 80943 states and 113676 transitions. [2024-12-02 12:36:47,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-12-02 12:36:47,759 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:36:47,759 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:36:47,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 12:36:47,759 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:36:47,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:36:47,760 INFO L85 PathProgramCache]: Analyzing trace with hash -843599115, now seen corresponding path program 1 times [2024-12-02 12:36:47,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:36:47,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840894060] [2024-12-02 12:36:47,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:36:47,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:36:47,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:36:47,956 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 12:36:47,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:36:47,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840894060] [2024-12-02 12:36:47,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840894060] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:36:47,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:36:47,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 12:36:47,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139511711] [2024-12-02 12:36:47,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:36:47,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 12:36:47,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:36:47,957 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 12:36:47,957 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 12:36:47,958 INFO L87 Difference]: Start difference. First operand 80943 states and 113676 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 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 12:36:51,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:36:51,054 INFO L93 Difference]: Finished difference Result 183487 states and 261396 transitions. [2024-12-02 12:36:51,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 12:36:51,054 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 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 104 [2024-12-02 12:36:51,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:36:51,195 INFO L225 Difference]: With dead ends: 183487 [2024-12-02 12:36:51,195 INFO L226 Difference]: Without dead ends: 168189 [2024-12-02 12:36:51,223 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-12-02 12:36:51,224 INFO L435 NwaCegarLoop]: 1666 mSDtfsCounter, 10093 mSDsluCounter, 2577 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10093 SdHoareTripleChecker+Valid, 4243 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:36:51,224 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10093 Valid, 4243 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:36:51,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168189 states. [2024-12-02 12:36:53,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168189 to 96239. [2024-12-02 12:36:53,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96239 states, 96237 states have (on average 1.4079823768405084) internal successors, (135500), 96238 states have internal predecessors, (135500), 0 states have call successors, (0), 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 12:36:53,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96239 states to 96239 states and 135500 transitions. [2024-12-02 12:36:53,467 INFO L78 Accepts]: Start accepts. Automaton has 96239 states and 135500 transitions. Word has length 104 [2024-12-02 12:36:53,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:36:53,467 INFO L471 AbstractCegarLoop]: Abstraction has 96239 states and 135500 transitions. [2024-12-02 12:36:53,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 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 12:36:53,468 INFO L276 IsEmpty]: Start isEmpty. Operand 96239 states and 135500 transitions. [2024-12-02 12:36:53,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-12-02 12:36:53,470 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:36:53,471 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:36:53,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 12:36:53,471 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:36:53,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:36:53,471 INFO L85 PathProgramCache]: Analyzing trace with hash 937333749, now seen corresponding path program 1 times [2024-12-02 12:36:53,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:36:53,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164861953] [2024-12-02 12:36:53,472 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:36:53,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:36:53,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:36:53,659 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-12-02 12:36:53,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:36:53,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164861953] [2024-12-02 12:36:53,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164861953] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:36:53,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:36:53,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 12:36:53,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643605329] [2024-12-02 12:36:53,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:36:53,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 12:36:53,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:36:53,660 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 12:36:53,660 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 12:36:53,660 INFO L87 Difference]: Start difference. First operand 96239 states and 135500 transitions. Second operand has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 states have internal predecessors, (91), 0 states have call successors, (0), 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 12:36:57,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:36:57,898 INFO L93 Difference]: Finished difference Result 198783 states and 283220 transitions. [2024-12-02 12:36:57,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 12:36:57,899 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 states have internal predecessors, (91), 0 states have call successors, (0), 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 104 [2024-12-02 12:36:57,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:36:58,091 INFO L225 Difference]: With dead ends: 198783 [2024-12-02 12:36:58,091 INFO L226 Difference]: Without dead ends: 183485 [2024-12-02 12:36:58,133 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-12-02 12:36:58,134 INFO L435 NwaCegarLoop]: 1669 mSDtfsCounter, 9939 mSDsluCounter, 2685 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9939 SdHoareTripleChecker+Valid, 4354 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:36:58,134 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9939 Valid, 4354 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:36:58,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183485 states. [2024-12-02 12:37:00,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183485 to 111535. [2024-12-02 12:37:00,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111535 states, 111533 states have (on average 1.4105601032878161) internal successors, (157324), 111534 states have internal predecessors, (157324), 0 states have call successors, (0), 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 12:37:00,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111535 states to 111535 states and 157324 transitions. [2024-12-02 12:37:00,999 INFO L78 Accepts]: Start accepts. Automaton has 111535 states and 157324 transitions. Word has length 104 [2024-12-02 12:37:00,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:37:00,999 INFO L471 AbstractCegarLoop]: Abstraction has 111535 states and 157324 transitions. [2024-12-02 12:37:00,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 states have internal predecessors, (91), 0 states have call successors, (0), 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 12:37:00,999 INFO L276 IsEmpty]: Start isEmpty. Operand 111535 states and 157324 transitions. [2024-12-02 12:37:01,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-12-02 12:37:01,002 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:37:01,002 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:37:01,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 12:37:01,002 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:37:01,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:37:01,003 INFO L85 PathProgramCache]: Analyzing trace with hash 133607669, now seen corresponding path program 1 times [2024-12-02 12:37:01,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:37:01,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026495779] [2024-12-02 12:37:01,003 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:37:01,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:37:01,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:37:01,150 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-12-02 12:37:01,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:37:01,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026495779] [2024-12-02 12:37:01,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026495779] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:37:01,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:37:01,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 12:37:01,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400410749] [2024-12-02 12:37:01,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:37:01,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 12:37:01,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:37:01,151 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 12:37:01,151 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 12:37:01,151 INFO L87 Difference]: Start difference. First operand 111535 states and 157324 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 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 12:37:04,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:37:04,759 INFO L93 Difference]: Finished difference Result 214079 states and 305044 transitions. [2024-12-02 12:37:04,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 12:37:04,760 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 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 104 [2024-12-02 12:37:04,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:37:04,940 INFO L225 Difference]: With dead ends: 214079 [2024-12-02 12:37:04,940 INFO L226 Difference]: Without dead ends: 198781 [2024-12-02 12:37:04,973 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-12-02 12:37:04,974 INFO L435 NwaCegarLoop]: 1674 mSDtfsCounter, 9837 mSDsluCounter, 2865 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9837 SdHoareTripleChecker+Valid, 4539 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:37:04,974 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9837 Valid, 4539 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:37:05,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198781 states. [2024-12-02 12:37:08,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198781 to 126831. [2024-12-02 12:37:08,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126831 states, 126829 states have (on average 1.4125160649378297) internal successors, (179148), 126830 states have internal predecessors, (179148), 0 states have call successors, (0), 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 12:37:08,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126831 states to 126831 states and 179148 transitions. [2024-12-02 12:37:08,688 INFO L78 Accepts]: Start accepts. Automaton has 126831 states and 179148 transitions. Word has length 104 [2024-12-02 12:37:08,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:37:08,688 INFO L471 AbstractCegarLoop]: Abstraction has 126831 states and 179148 transitions. [2024-12-02 12:37:08,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 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 12:37:08,688 INFO L276 IsEmpty]: Start isEmpty. Operand 126831 states and 179148 transitions. [2024-12-02 12:37:08,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 12:37:08,697 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:37:08,697 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:37:08,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 12:37:08,697 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:37:08,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:37:08,697 INFO L85 PathProgramCache]: Analyzing trace with hash 388736525, now seen corresponding path program 1 times [2024-12-02 12:37:08,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:37:08,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303775510] [2024-12-02 12:37:08,698 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:37:08,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:37:08,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:37:08,796 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:37:08,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:37:08,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303775510] [2024-12-02 12:37:08,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303775510] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:37:08,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:37:08,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:37:08,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699800081] [2024-12-02 12:37:08,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:37:08,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:37:08,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:37:08,798 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:37:08,798 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:37:08,798 INFO L87 Difference]: Start difference. First operand 126831 states and 179148 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 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 12:37:10,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:37:10,783 INFO L93 Difference]: Finished difference Result 207499 states and 295335 transitions. [2024-12-02 12:37:10,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:37:10,783 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 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 106 [2024-12-02 12:37:10,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:37:10,861 INFO L225 Difference]: With dead ends: 207499 [2024-12-02 12:37:10,861 INFO L226 Difference]: Without dead ends: 92745 [2024-12-02 12:37:10,898 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 12:37:10,899 INFO L435 NwaCegarLoop]: 1641 mSDtfsCounter, 66 mSDsluCounter, 1570 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 3211 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 12:37:10,899 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 3211 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:37:10,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92745 states. [2024-12-02 12:37:12,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92745 to 92743. [2024-12-02 12:37:12,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92743 states, 92741 states have (on average 1.4088698633829697) internal successors, (130660), 92742 states have internal predecessors, (130660), 0 states have call successors, (0), 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 12:37:13,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92743 states to 92743 states and 130660 transitions. [2024-12-02 12:37:13,117 INFO L78 Accepts]: Start accepts. Automaton has 92743 states and 130660 transitions. Word has length 106 [2024-12-02 12:37:13,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:37:13,117 INFO L471 AbstractCegarLoop]: Abstraction has 92743 states and 130660 transitions. [2024-12-02 12:37:13,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 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 12:37:13,117 INFO L276 IsEmpty]: Start isEmpty. Operand 92743 states and 130660 transitions. [2024-12-02 12:37:13,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 12:37:13,119 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:37:13,119 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:37:13,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 12:37:13,119 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:37:13,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:37:13,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1382462672, now seen corresponding path program 1 times [2024-12-02 12:37:13,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:37:13,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586866204] [2024-12-02 12:37:13,119 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:37:13,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:37:13,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:37:13,262 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-02 12:37:13,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:37:13,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586866204] [2024-12-02 12:37:13,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586866204] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:37:13,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:37:13,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 12:37:13,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867803985] [2024-12-02 12:37:13,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:37:13,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 12:37:13,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:37:13,263 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 12:37:13,263 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 12:37:13,263 INFO L87 Difference]: Start difference. First operand 92743 states and 130660 transitions. Second operand has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 9 states have internal predecessors, (105), 0 states have call successors, (0), 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 12:37:16,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:37:16,809 INFO L93 Difference]: Finished difference Result 168023 states and 239084 transitions. [2024-12-02 12:37:16,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 12:37:16,809 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 9 states have internal predecessors, (105), 0 states have call successors, (0), 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 106 [2024-12-02 12:37:16,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:37:16,943 INFO L225 Difference]: With dead ends: 168023 [2024-12-02 12:37:16,943 INFO L226 Difference]: Without dead ends: 157269 [2024-12-02 12:37:16,970 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-12-02 12:37:16,971 INFO L435 NwaCegarLoop]: 1664 mSDtfsCounter, 9914 mSDsluCounter, 3006 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9914 SdHoareTripleChecker+Valid, 4670 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:37:16,971 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9914 Valid, 4670 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:37:17,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157269 states. [2024-12-02 12:37:19,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157269 to 103495. [2024-12-02 12:37:19,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103495 states, 103493 states have (on average 1.4109166803551931) internal successors, (146020), 103494 states have internal predecessors, (146020), 0 states have call successors, (0), 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 12:37:19,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103495 states to 103495 states and 146020 transitions. [2024-12-02 12:37:19,579 INFO L78 Accepts]: Start accepts. Automaton has 103495 states and 146020 transitions. Word has length 106 [2024-12-02 12:37:19,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:37:19,579 INFO L471 AbstractCegarLoop]: Abstraction has 103495 states and 146020 transitions. [2024-12-02 12:37:19,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 9 states have internal predecessors, (105), 0 states have call successors, (0), 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 12:37:19,579 INFO L276 IsEmpty]: Start isEmpty. Operand 103495 states and 146020 transitions. [2024-12-02 12:37:19,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-12-02 12:37:19,582 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:37:19,582 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:37:19,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 12:37:19,582 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:37:19,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:37:19,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1784794265, now seen corresponding path program 1 times [2024-12-02 12:37:19,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:37:19,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184854326] [2024-12-02 12:37:19,583 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:37:19,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:37:19,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:37:19,663 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:37:19,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:37:19,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184854326] [2024-12-02 12:37:19,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184854326] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:37:19,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:37:19,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:37:19,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980455606] [2024-12-02 12:37:19,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:37:19,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:37:19,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:37:19,664 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:37:19,664 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:37:19,664 INFO L87 Difference]: Start difference. First operand 103495 states and 146020 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 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 12:37:20,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:37:20,815 INFO L93 Difference]: Finished difference Result 149195 states and 211302 transitions. [2024-12-02 12:37:20,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:37:20,815 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 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 107 [2024-12-02 12:37:20,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:37:20,861 INFO L225 Difference]: With dead ends: 149195 [2024-12-02 12:37:20,861 INFO L226 Difference]: Without dead ends: 57801 [2024-12-02 12:37:20,894 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 12:37:20,894 INFO L435 NwaCegarLoop]: 1634 mSDtfsCounter, 61 mSDsluCounter, 1562 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 3196 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 12:37:20,894 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 3196 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:37:20,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57801 states. [2024-12-02 12:37:22,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57801 to 57799. [2024-12-02 12:37:22,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57799 states, 57797 states have (on average 1.3875460664048307) internal successors, (80196), 57798 states have internal predecessors, (80196), 0 states have call successors, (0), 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 12:37:22,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57799 states to 57799 states and 80196 transitions. [2024-12-02 12:37:22,242 INFO L78 Accepts]: Start accepts. Automaton has 57799 states and 80196 transitions. Word has length 107 [2024-12-02 12:37:22,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:37:22,242 INFO L471 AbstractCegarLoop]: Abstraction has 57799 states and 80196 transitions. [2024-12-02 12:37:22,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 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 12:37:22,243 INFO L276 IsEmpty]: Start isEmpty. Operand 57799 states and 80196 transitions. [2024-12-02 12:37:22,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 12:37:22,244 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:37:22,244 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:37:22,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 12:37:22,245 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:37:22,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:37:22,245 INFO L85 PathProgramCache]: Analyzing trace with hash 171046265, now seen corresponding path program 1 times [2024-12-02 12:37:22,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:37:22,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403078137] [2024-12-02 12:37:22,245 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:37:22,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:37:22,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:37:22,422 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:37:22,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:37:22,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403078137] [2024-12-02 12:37:22,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403078137] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:37:22,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:37:22,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:37:22,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547544466] [2024-12-02 12:37:22,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:37:22,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:37:22,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:37:22,425 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:37:22,425 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:37:22,425 INFO L87 Difference]: Start difference. First operand 57799 states and 80196 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 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 12:37:23,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:37:23,061 INFO L93 Difference]: Finished difference Result 80651 states and 112566 transitions. [2024-12-02 12:37:23,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:37:23,061 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2024-12-02 12:37:23,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:37:23,095 INFO L225 Difference]: With dead ends: 80651 [2024-12-02 12:37:23,095 INFO L226 Difference]: Without dead ends: 34953 [2024-12-02 12:37:23,118 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 12:37:23,118 INFO L435 NwaCegarLoop]: 1627 mSDtfsCounter, 58 mSDsluCounter, 1554 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 3181 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 12:37:23,118 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 3181 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:37:23,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34953 states. [2024-12-02 12:37:24,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34953 to 34951. [2024-12-02 12:37:24,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34951 states, 34949 states have (on average 1.3607256287733556) internal successors, (47556), 34950 states have internal predecessors, (47556), 0 states have call successors, (0), 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 12:37:24,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34951 states to 34951 states and 47556 transitions. [2024-12-02 12:37:24,123 INFO L78 Accepts]: Start accepts. Automaton has 34951 states and 47556 transitions. Word has length 109 [2024-12-02 12:37:24,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:37:24,123 INFO L471 AbstractCegarLoop]: Abstraction has 34951 states and 47556 transitions. [2024-12-02 12:37:24,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 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 12:37:24,124 INFO L276 IsEmpty]: Start isEmpty. Operand 34951 states and 47556 transitions. [2024-12-02 12:37:24,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-12-02 12:37:24,125 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:37:24,125 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:37:24,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 12:37:24,126 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:37:24,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:37:24,126 INFO L85 PathProgramCache]: Analyzing trace with hash 2064578059, now seen corresponding path program 1 times [2024-12-02 12:37:24,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:37:24,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609846528] [2024-12-02 12:37:24,126 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:37:24,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:37:24,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:37:24,192 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:37:24,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:37:24,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609846528] [2024-12-02 12:37:24,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609846528] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:37:24,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:37:24,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:37:24,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721161575] [2024-12-02 12:37:24,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:37:24,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:37:24,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:37:24,193 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:37:24,193 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:37:24,193 INFO L87 Difference]: Start difference. First operand 34951 states and 47556 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 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 12:37:24,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:37:24,510 INFO L93 Difference]: Finished difference Result 46379 states and 63606 transitions. [2024-12-02 12:37:24,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:37:24,510 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2024-12-02 12:37:24,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:37:24,527 INFO L225 Difference]: With dead ends: 46379 [2024-12-02 12:37:24,527 INFO L226 Difference]: Without dead ends: 23529 [2024-12-02 12:37:24,537 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 12:37:24,537 INFO L435 NwaCegarLoop]: 1620 mSDtfsCounter, 55 mSDsluCounter, 1546 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 3166 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 12:37:24,538 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 3166 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:37:24,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23529 states. [2024-12-02 12:37:24,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23529 to 23527. [2024-12-02 12:37:24,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23527 states, 23525 states have (on average 1.3335600425079703) internal successors, (31372), 23526 states have internal predecessors, (31372), 0 states have call successors, (0), 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 12:37:24,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23527 states to 23527 states and 31372 transitions. [2024-12-02 12:37:24,964 INFO L78 Accepts]: Start accepts. Automaton has 23527 states and 31372 transitions. Word has length 111 [2024-12-02 12:37:24,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:37:24,964 INFO L471 AbstractCegarLoop]: Abstraction has 23527 states and 31372 transitions. [2024-12-02 12:37:24,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 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 12:37:24,964 INFO L276 IsEmpty]: Start isEmpty. Operand 23527 states and 31372 transitions. [2024-12-02 12:37:24,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-12-02 12:37:24,966 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:37:24,966 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:37:24,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 12:37:24,966 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:37:24,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:37:24,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1057117469, now seen corresponding path program 1 times [2024-12-02 12:37:24,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:37:24,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851372357] [2024-12-02 12:37:24,966 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:37:24,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:37:24,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:37:25,074 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:37:25,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:37:25,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851372357] [2024-12-02 12:37:25,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851372357] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:37:25,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:37:25,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:37:25,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780191907] [2024-12-02 12:37:25,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:37:25,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:37:25,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:37:25,075 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:37:25,076 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:37:25,076 INFO L87 Difference]: Start difference. First operand 23527 states and 31372 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 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 12:37:25,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:37:25,335 INFO L93 Difference]: Finished difference Result 29243 states and 39330 transitions. [2024-12-02 12:37:25,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:37:25,335 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2024-12-02 12:37:25,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:37:25,351 INFO L225 Difference]: With dead ends: 29243 [2024-12-02 12:37:25,351 INFO L226 Difference]: Without dead ends: 17817 [2024-12-02 12:37:25,358 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 12:37:25,358 INFO L435 NwaCegarLoop]: 1613 mSDtfsCounter, 52 mSDsluCounter, 1538 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 3151 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 12:37:25,358 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 3151 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:37:25,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17817 states. [2024-12-02 12:37:25,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17817 to 17815. [2024-12-02 12:37:25,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17815 states, 17813 states have (on average 1.3107281199124234) internal successors, (23348), 17814 states have internal predecessors, (23348), 0 states have call successors, (0), 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 12:37:25,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17815 states to 17815 states and 23348 transitions. [2024-12-02 12:37:25,643 INFO L78 Accepts]: Start accepts. Automaton has 17815 states and 23348 transitions. Word has length 113 [2024-12-02 12:37:25,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:37:25,643 INFO L471 AbstractCegarLoop]: Abstraction has 17815 states and 23348 transitions. [2024-12-02 12:37:25,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 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 12:37:25,643 INFO L276 IsEmpty]: Start isEmpty. Operand 17815 states and 23348 transitions. [2024-12-02 12:37:25,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-12-02 12:37:25,644 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:37:25,644 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:37:25,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 12:37:25,644 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:37:25,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:37:25,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1472279215, now seen corresponding path program 1 times [2024-12-02 12:37:25,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:37:25,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027630711] [2024-12-02 12:37:25,644 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:37:25,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:37:25,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:37:25,736 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:37:25,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:37:25,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027630711] [2024-12-02 12:37:25,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027630711] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:37:25,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:37:25,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:37:25,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855221192] [2024-12-02 12:37:25,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:37:25,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:37:25,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:37:25,737 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:37:25,737 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:37:25,737 INFO L87 Difference]: Start difference. First operand 17815 states and 23348 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 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 12:37:25,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:37:25,966 INFO L93 Difference]: Finished difference Result 20675 states and 27294 transitions. [2024-12-02 12:37:25,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:37:25,966 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2024-12-02 12:37:25,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:37:25,982 INFO L225 Difference]: With dead ends: 20675 [2024-12-02 12:37:25,982 INFO L226 Difference]: Without dead ends: 14961 [2024-12-02 12:37:25,985 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 12:37:25,985 INFO L435 NwaCegarLoop]: 1606 mSDtfsCounter, 49 mSDsluCounter, 1530 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 3136 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 12:37:25,986 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 3136 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:37:25,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14961 states. [2024-12-02 12:37:26,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14961 to 14959. [2024-12-02 12:37:26,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14959 states, 14957 states have (on average 1.2950457979541352) internal successors, (19370), 14958 states have internal predecessors, (19370), 0 states have call successors, (0), 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 12:37:26,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14959 states to 14959 states and 19370 transitions. [2024-12-02 12:37:26,138 INFO L78 Accepts]: Start accepts. Automaton has 14959 states and 19370 transitions. Word has length 115 [2024-12-02 12:37:26,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:37:26,139 INFO L471 AbstractCegarLoop]: Abstraction has 14959 states and 19370 transitions. [2024-12-02 12:37:26,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 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 12:37:26,139 INFO L276 IsEmpty]: Start isEmpty. Operand 14959 states and 19370 transitions. [2024-12-02 12:37:26,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-12-02 12:37:26,139 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:37:26,139 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:37:26,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-02 12:37:26,140 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:37:26,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:37:26,140 INFO L85 PathProgramCache]: Analyzing trace with hash 65580737, now seen corresponding path program 1 times [2024-12-02 12:37:26,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:37:26,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487672591] [2024-12-02 12:37:26,140 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:37:26,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:37:26,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:37:26,223 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:37:26,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:37:26,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487672591] [2024-12-02 12:37:26,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487672591] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:37:26,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:37:26,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:37:26,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433782887] [2024-12-02 12:37:26,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:37:26,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:37:26,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:37:26,224 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:37:26,224 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:37:26,224 INFO L87 Difference]: Start difference. First operand 14959 states and 19370 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 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 12:37:26,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:37:26,300 INFO L93 Difference]: Finished difference Result 16391 states and 21327 transitions. [2024-12-02 12:37:26,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:37:26,301 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2024-12-02 12:37:26,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:37:26,311 INFO L225 Difference]: With dead ends: 16391 [2024-12-02 12:37:26,311 INFO L226 Difference]: Without dead ends: 13533 [2024-12-02 12:37:26,314 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 12:37:26,315 INFO L435 NwaCegarLoop]: 1599 mSDtfsCounter, 46 mSDsluCounter, 1522 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 3121 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 12:37:26,315 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 3121 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:37:26,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13533 states. [2024-12-02 12:37:26,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13533 to 13531. [2024-12-02 12:37:26,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13531 states, 13529 states have (on average 1.2859782689038362) internal successors, (17398), 13530 states have internal predecessors, (17398), 0 states have call successors, (0), 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 12:37:26,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13531 states to 13531 states and 17398 transitions. [2024-12-02 12:37:26,445 INFO L78 Accepts]: Start accepts. Automaton has 13531 states and 17398 transitions. Word has length 117 [2024-12-02 12:37:26,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:37:26,445 INFO L471 AbstractCegarLoop]: Abstraction has 13531 states and 17398 transitions. [2024-12-02 12:37:26,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 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 12:37:26,445 INFO L276 IsEmpty]: Start isEmpty. Operand 13531 states and 17398 transitions. [2024-12-02 12:37:26,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 12:37:26,446 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:37:26,446 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, 1, 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 12:37:26,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-12-02 12:37:26,446 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:37:26,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:37:26,446 INFO L85 PathProgramCache]: Analyzing trace with hash -788666029, now seen corresponding path program 1 times [2024-12-02 12:37:26,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:37:26,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760872384] [2024-12-02 12:37:26,446 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:37:26,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:37:26,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:37:26,841 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:37:26,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:37:26,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760872384] [2024-12-02 12:37:26,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760872384] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:37:26,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1506075571] [2024-12-02 12:37:26,842 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:37:26,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:37:26,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91822362-cbf3-4ef6-87d1-cfb7f10129ab/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:37:26,843 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91822362-cbf3-4ef6-87d1-cfb7f10129ab/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:37:26,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91822362-cbf3-4ef6-87d1-cfb7f10129ab/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 12:37:26,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:37:26,994 INFO L256 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 12:37:27,000 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:37:27,231 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-02 12:37:27,231 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:37:27,477 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-02 12:37:27,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1506075571] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:37:27,478 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:37:27,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 4] total 16 [2024-12-02 12:37:27,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2659169] [2024-12-02 12:37:27,478 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:37:27,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 12:37:27,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:37:27,479 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 12:37:27,479 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2024-12-02 12:37:27,479 INFO L87 Difference]: Start difference. First operand 13531 states and 17398 transitions. Second operand has 16 states, 16 states have (on average 21.25) internal successors, (340), 16 states have internal predecessors, (340), 0 states have call successors, (0), 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 12:37:29,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:37:29,130 INFO L93 Difference]: Finished difference Result 22632 states and 29551 transitions. [2024-12-02 12:37:29,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-12-02 12:37:29,131 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 21.25) internal successors, (340), 16 states have internal predecessors, (340), 0 states have call successors, (0), 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 119 [2024-12-02 12:37:29,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:37:29,145 INFO L225 Difference]: With dead ends: 22632 [2024-12-02 12:37:29,146 INFO L226 Difference]: Without dead ends: 21202 [2024-12-02 12:37:29,150 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 576 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=478, Invalid=1684, Unknown=0, NotChecked=0, Total=2162 [2024-12-02 12:37:29,150 INFO L435 NwaCegarLoop]: 1554 mSDtfsCounter, 17007 mSDsluCounter, 6591 mSDsCounter, 0 mSdLazyCounter, 806 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17007 SdHoareTripleChecker+Valid, 8145 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 12:37:29,150 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17007 Valid, 8145 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 806 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 12:37:29,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21202 states. [2024-12-02 12:37:29,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21202 to 21146. [2024-12-02 12:37:29,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21146 states, 21144 states have (on average 1.2828225501324253) internal successors, (27124), 21145 states have internal predecessors, (27124), 0 states have call successors, (0), 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 12:37:29,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21146 states to 21146 states and 27124 transitions. [2024-12-02 12:37:29,725 INFO L78 Accepts]: Start accepts. Automaton has 21146 states and 27124 transitions. Word has length 119 [2024-12-02 12:37:29,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:37:29,725 INFO L471 AbstractCegarLoop]: Abstraction has 21146 states and 27124 transitions. [2024-12-02 12:37:29,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 21.25) internal successors, (340), 16 states have internal predecessors, (340), 0 states have call successors, (0), 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 12:37:29,725 INFO L276 IsEmpty]: Start isEmpty. Operand 21146 states and 27124 transitions. [2024-12-02 12:37:29,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-12-02 12:37:29,726 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:37:29,726 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:37:29,733 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91822362-cbf3-4ef6-87d1-cfb7f10129ab/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 12:37:29,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91822362-cbf3-4ef6-87d1-cfb7f10129ab/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-12-02 12:37:29,927 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:37:29,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:37:29,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1664017124, now seen corresponding path program 1 times [2024-12-02 12:37:29,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:37:29,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231038338] [2024-12-02 12:37:29,927 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:37:29,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:37:29,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:37:31,188 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:37:31,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:37:31,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231038338] [2024-12-02 12:37:31,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231038338] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:37:31,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1464092589] [2024-12-02 12:37:31,188 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:37:31,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:37:31,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91822362-cbf3-4ef6-87d1-cfb7f10129ab/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:37:31,190 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91822362-cbf3-4ef6-87d1-cfb7f10129ab/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:37:31,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91822362-cbf3-4ef6-87d1-cfb7f10129ab/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 12:37:31,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:37:31,329 INFO L256 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-02 12:37:31,332 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:37:31,987 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:37:31,987 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:37:33,247 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:37:33,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1464092589] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:37:33,247 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:37:33,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 13] total 34 [2024-12-02 12:37:33,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71671322] [2024-12-02 12:37:33,247 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:37:33,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-12-02 12:37:33,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:37:33,248 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-12-02 12:37:33,249 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=968, Unknown=0, NotChecked=0, Total=1122 [2024-12-02 12:37:33,249 INFO L87 Difference]: Start difference. First operand 21146 states and 27124 transitions. Second operand has 34 states, 34 states have (on average 9.294117647058824) internal successors, (316), 34 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:37:38,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:37:38,195 INFO L93 Difference]: Finished difference Result 66944 states and 87988 transitions. [2024-12-02 12:37:38,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-12-02 12:37:38,195 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 9.294117647058824) internal successors, (316), 34 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2024-12-02 12:37:38,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:37:38,236 INFO L225 Difference]: With dead ends: 66944 [2024-12-02 12:37:38,236 INFO L226 Difference]: Without dead ends: 58121 [2024-12-02 12:37:38,249 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1573 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1064, Invalid=5256, Unknown=0, NotChecked=0, Total=6320 [2024-12-02 12:37:38,249 INFO L435 NwaCegarLoop]: 1574 mSDtfsCounter, 20648 mSDsluCounter, 10679 mSDsCounter, 0 mSdLazyCounter, 2386 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20648 SdHoareTripleChecker+Valid, 12253 SdHoareTripleChecker+Invalid, 2432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 2386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:37:38,249 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20648 Valid, 12253 Invalid, 2432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 2386 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 12:37:38,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58121 states. [2024-12-02 12:37:39,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58121 to 50521. [2024-12-02 12:37:39,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50521 states, 50519 states have (on average 1.2812209267800234) internal successors, (64726), 50520 states have internal predecessors, (64726), 0 states have call successors, (0), 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 12:37:39,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50521 states to 50521 states and 64726 transitions. [2024-12-02 12:37:39,760 INFO L78 Accepts]: Start accepts. Automaton has 50521 states and 64726 transitions. Word has length 120 [2024-12-02 12:37:39,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:37:39,760 INFO L471 AbstractCegarLoop]: Abstraction has 50521 states and 64726 transitions. [2024-12-02 12:37:39,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 9.294117647058824) internal successors, (316), 34 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:37:39,760 INFO L276 IsEmpty]: Start isEmpty. Operand 50521 states and 64726 transitions. [2024-12-02 12:37:39,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-12-02 12:37:39,761 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:37:39,761 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:37:39,767 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91822362-cbf3-4ef6-87d1-cfb7f10129ab/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 12:37:39,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91822362-cbf3-4ef6-87d1-cfb7f10129ab/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-12-02 12:37:39,962 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:37:39,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:37:39,962 INFO L85 PathProgramCache]: Analyzing trace with hash -525912434, now seen corresponding path program 1 times [2024-12-02 12:37:39,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:37:39,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484236108] [2024-12-02 12:37:39,962 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:37:39,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:37:39,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:37:40,333 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:37:40,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:37:40,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484236108] [2024-12-02 12:37:40,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484236108] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:37:40,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1736507194] [2024-12-02 12:37:40,333 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:37:40,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:37:40,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91822362-cbf3-4ef6-87d1-cfb7f10129ab/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:37:40,334 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91822362-cbf3-4ef6-87d1-cfb7f10129ab/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:37:40,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91822362-cbf3-4ef6-87d1-cfb7f10129ab/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 12:37:40,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:37:40,473 INFO L256 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 12:37:40,475 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:37:40,954 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:37:40,955 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:37:41,971 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:37:41,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1736507194] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:37:41,971 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:37:41,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-12-02 12:37:41,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060296169] [2024-12-02 12:37:41,971 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:37:41,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-12-02 12:37:41,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:37:41,972 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-12-02 12:37:41,972 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=521, Unknown=0, NotChecked=0, Total=600 [2024-12-02 12:37:41,972 INFO L87 Difference]: Start difference. First operand 50521 states and 64726 transitions. Second operand has 25 states, 25 states have (on average 12.96) internal successors, (324), 24 states have internal predecessors, (324), 0 states have call successors, (0), 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 12:37:46,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:37:46,471 INFO L93 Difference]: Finished difference Result 160895 states and 206991 transitions. [2024-12-02 12:37:46,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-12-02 12:37:46,472 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 12.96) internal successors, (324), 24 states have internal predecessors, (324), 0 states have call successors, (0), 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 120 [2024-12-02 12:37:46,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:37:46,564 INFO L225 Difference]: With dead ends: 160895 [2024-12-02 12:37:46,564 INFO L226 Difference]: Without dead ends: 123075 [2024-12-02 12:37:46,587 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 379 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=513, Invalid=1743, Unknown=0, NotChecked=0, Total=2256 [2024-12-02 12:37:46,588 INFO L435 NwaCegarLoop]: 1543 mSDtfsCounter, 20750 mSDsluCounter, 6672 mSDsCounter, 0 mSdLazyCounter, 803 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20750 SdHoareTripleChecker+Valid, 8215 SdHoareTripleChecker+Invalid, 832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 12:37:46,588 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20750 Valid, 8215 Invalid, 832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 803 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 12:37:46,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123075 states. [2024-12-02 12:37:50,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123075 to 122587. [2024-12-02 12:37:50,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122587 states, 122585 states have (on average 1.2649182200106048) internal successors, (155060), 122586 states have internal predecessors, (155060), 0 states have call successors, (0), 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 12:37:50,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122587 states to 122587 states and 155060 transitions. [2024-12-02 12:37:50,658 INFO L78 Accepts]: Start accepts. Automaton has 122587 states and 155060 transitions. Word has length 120 [2024-12-02 12:37:50,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:37:50,658 INFO L471 AbstractCegarLoop]: Abstraction has 122587 states and 155060 transitions. [2024-12-02 12:37:50,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 12.96) internal successors, (324), 24 states have internal predecessors, (324), 0 states have call successors, (0), 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 12:37:50,658 INFO L276 IsEmpty]: Start isEmpty. Operand 122587 states and 155060 transitions. [2024-12-02 12:37:50,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-12-02 12:37:50,660 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:37:50,660 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:37:50,666 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91822362-cbf3-4ef6-87d1-cfb7f10129ab/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 12:37:50,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91822362-cbf3-4ef6-87d1-cfb7f10129ab/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:37:50,860 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:37:50,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:37:50,860 INFO L85 PathProgramCache]: Analyzing trace with hash -2050107350, now seen corresponding path program 1 times [2024-12-02 12:37:50,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:37:50,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406505967] [2024-12-02 12:37:50,861 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:37:50,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:37:50,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:37:51,076 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:37:51,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:37:51,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406505967] [2024-12-02 12:37:51,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406505967] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:37:51,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1898271358] [2024-12-02 12:37:51,076 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:37:51,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:37:51,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91822362-cbf3-4ef6-87d1-cfb7f10129ab/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:37:51,078 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91822362-cbf3-4ef6-87d1-cfb7f10129ab/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:37:51,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91822362-cbf3-4ef6-87d1-cfb7f10129ab/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 12:37:51,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:37:51,224 INFO L256 TraceCheckSpWp]: Trace formula consists of 567 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-12-02 12:37:51,228 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:37:52,286 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:37:52,286 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:37:54,091 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:37:54,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1898271358] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:37:54,091 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:37:54,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14, 12] total 33 [2024-12-02 12:37:54,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326739908] [2024-12-02 12:37:54,091 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:37:54,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-12-02 12:37:54,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:37:54,093 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-12-02 12:37:54,093 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=904, Unknown=0, NotChecked=0, Total=1056 [2024-12-02 12:37:54,093 INFO L87 Difference]: Start difference. First operand 122587 states and 155060 transitions. Second operand has 33 states, 33 states have (on average 10.090909090909092) internal successors, (333), 33 states have internal predecessors, (333), 0 states have call successors, (0), 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 12:38:18,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:38:18,974 INFO L93 Difference]: Finished difference Result 764353 states and 970289 transitions. [2024-12-02 12:38:18,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2024-12-02 12:38:18,974 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 10.090909090909092) internal successors, (333), 33 states have internal predecessors, (333), 0 states have call successors, (0), 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 122 [2024-12-02 12:38:18,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:38:19,579 INFO L225 Difference]: With dead ends: 764353 [2024-12-02 12:38:19,579 INFO L226 Difference]: Without dead ends: 657888 [2024-12-02 12:38:19,806 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2885 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=1873, Invalid=8027, Unknown=0, NotChecked=0, Total=9900 [2024-12-02 12:38:19,806 INFO L435 NwaCegarLoop]: 1562 mSDtfsCounter, 21501 mSDsluCounter, 11461 mSDsCounter, 0 mSdLazyCounter, 1341 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21501 SdHoareTripleChecker+Valid, 13023 SdHoareTripleChecker+Invalid, 1424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 1341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 12:38:19,806 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21501 Valid, 13023 Invalid, 1424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 1341 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 12:38:20,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657888 states. [2024-12-02 12:38:43,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657888 to 652812. [2024-12-02 12:38:43,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 652812 states, 652810 states have (on average 1.2477612168931236) internal successors, (814551), 652811 states have internal predecessors, (814551), 0 states have call successors, (0), 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 12:38:44,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652812 states to 652812 states and 814551 transitions. [2024-12-02 12:38:44,863 INFO L78 Accepts]: Start accepts. Automaton has 652812 states and 814551 transitions. Word has length 122 [2024-12-02 12:38:44,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:38:44,863 INFO L471 AbstractCegarLoop]: Abstraction has 652812 states and 814551 transitions. [2024-12-02 12:38:44,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 10.090909090909092) internal successors, (333), 33 states have internal predecessors, (333), 0 states have call successors, (0), 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 12:38:44,863 INFO L276 IsEmpty]: Start isEmpty. Operand 652812 states and 814551 transitions. [2024-12-02 12:38:44,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 12:38:44,867 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:38:44,867 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:38:44,877 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91822362-cbf3-4ef6-87d1-cfb7f10129ab/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 12:38:45,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91822362-cbf3-4ef6-87d1-cfb7f10129ab/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-12-02 12:38:45,068 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:38:45,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:38:45,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1498050442, now seen corresponding path program 1 times [2024-12-02 12:38:45,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:38:45,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178876355] [2024-12-02 12:38:45,068 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:38:45,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:38:45,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:38:45,768 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:38:45,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:38:45,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178876355] [2024-12-02 12:38:45,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178876355] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:38:45,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1382018325] [2024-12-02 12:38:45,769 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:38:45,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:38:45,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91822362-cbf3-4ef6-87d1-cfb7f10129ab/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:38:45,771 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91822362-cbf3-4ef6-87d1-cfb7f10129ab/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:38:45,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91822362-cbf3-4ef6-87d1-cfb7f10129ab/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 12:38:45,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:38:45,972 INFO L256 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-02 12:38:45,974 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:38:46,894 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:38:46,894 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:38:48,830 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:38:48,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1382018325] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:38:48,831 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:38:48,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14, 14] total 32 [2024-12-02 12:38:48,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040965533] [2024-12-02 12:38:48,831 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:38:48,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-12-02 12:38:48,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:38:48,832 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-12-02 12:38:48,832 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=233, Invalid=823, Unknown=0, NotChecked=0, Total=1056 [2024-12-02 12:38:48,833 INFO L87 Difference]: Start difference. First operand 652812 states and 814551 transitions. Second operand has 33 states, 33 states have (on average 9.151515151515152) internal successors, (302), 32 states have internal predecessors, (302), 0 states have call successors, (0), 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 12:39:11,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:39:11,715 INFO L93 Difference]: Finished difference Result 1255199 states and 1569072 transitions. [2024-12-02 12:39:11,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 12:39:11,715 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 9.151515151515152) internal successors, (302), 32 states have internal predecessors, (302), 0 states have call successors, (0), 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 124 [2024-12-02 12:39:11,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:39:12,441 INFO L225 Difference]: With dead ends: 1255199 [2024-12-02 12:39:12,441 INFO L226 Difference]: Without dead ends: 673120 [2024-12-02 12:39:12,658 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 475 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=545, Invalid=1525, Unknown=0, NotChecked=0, Total=2070 [2024-12-02 12:39:12,659 INFO L435 NwaCegarLoop]: 1539 mSDtfsCounter, 11259 mSDsluCounter, 6393 mSDsCounter, 0 mSdLazyCounter, 687 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11259 SdHoareTripleChecker+Valid, 7932 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 12:39:12,659 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11259 Valid, 7932 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 687 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 12:39:13,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673120 states. [2024-12-02 12:39:36,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673120 to 624412. [2024-12-02 12:39:37,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 624412 states, 624410 states have (on average 1.235188417866466) internal successors, (771264), 624411 states have internal predecessors, (771264), 0 states have call successors, (0), 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 12:39:38,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624412 states to 624412 states and 771264 transitions. [2024-12-02 12:39:38,613 INFO L78 Accepts]: Start accepts. Automaton has 624412 states and 771264 transitions. Word has length 124 [2024-12-02 12:39:38,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:39:38,613 INFO L471 AbstractCegarLoop]: Abstraction has 624412 states and 771264 transitions. [2024-12-02 12:39:38,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 9.151515151515152) internal successors, (302), 32 states have internal predecessors, (302), 0 states have call successors, (0), 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 12:39:38,613 INFO L276 IsEmpty]: Start isEmpty. Operand 624412 states and 771264 transitions. [2024-12-02 12:39:38,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 12:39:38,618 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:39:38,618 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, 1, 1, 1, 1, 1, 1, 1, 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 12:39:38,628 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91822362-cbf3-4ef6-87d1-cfb7f10129ab/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 12:39:38,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91822362-cbf3-4ef6-87d1-cfb7f10129ab/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-12-02 12:39:38,818 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:39:38,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:39:38,819 INFO L85 PathProgramCache]: Analyzing trace with hash -547933649, now seen corresponding path program 1 times [2024-12-02 12:39:38,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:39:38,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118599506] [2024-12-02 12:39:38,819 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:39:38,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:39:38,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:39:39,005 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:39:39,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:39:39,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118599506] [2024-12-02 12:39:39,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118599506] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:39:39,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:39:39,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:39:39,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852254552] [2024-12-02 12:39:39,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:39:39,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:39:39,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:39:39,006 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:39:39,006 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:39:39,006 INFO L87 Difference]: Start difference. First operand 624412 states and 771264 transitions. Second operand has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 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 12:40:04,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:40:04,796 INFO L93 Difference]: Finished difference Result 637181 states and 787450 transitions. [2024-12-02 12:40:04,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 12:40:04,796 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 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 125 [2024-12-02 12:40:04,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:40:05,385 INFO L225 Difference]: With dead ends: 637181 [2024-12-02 12:40:05,385 INFO L226 Difference]: Without dead ends: 625163 [2024-12-02 12:40:05,460 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:40:05,461 INFO L435 NwaCegarLoop]: 339 mSDtfsCounter, 2409 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 4787 mSolverCounterSat, 582 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2409 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 5369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 582 IncrementalHoareTripleChecker+Valid, 4787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:40:05,461 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2409 Valid, 356 Invalid, 5369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [582 Valid, 4787 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-12-02 12:40:05,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625163 states. [2024-12-02 12:40:28,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625163 to 625163. [2024-12-02 12:40:28,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 625163 states, 625161 states have (on average 1.2345507797191444) internal successors, (771793), 625162 states have internal predecessors, (771793), 0 states have call successors, (0), 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 12:40:29,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625163 states to 625163 states and 771793 transitions. [2024-12-02 12:40:29,946 INFO L78 Accepts]: Start accepts. Automaton has 625163 states and 771793 transitions. Word has length 125 [2024-12-02 12:40:29,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:40:29,947 INFO L471 AbstractCegarLoop]: Abstraction has 625163 states and 771793 transitions. [2024-12-02 12:40:29,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 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 12:40:29,947 INFO L276 IsEmpty]: Start isEmpty. Operand 625163 states and 771793 transitions. [2024-12-02 12:40:29,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 12:40:29,951 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:40:29,951 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:40:29,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-12-02 12:40:29,951 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:40:29,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:40:29,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1721841515, now seen corresponding path program 1 times [2024-12-02 12:40:29,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:40:29,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885118957] [2024-12-02 12:40:29,951 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:40:29,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:40:29,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:40:30,678 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:40:30,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:40:30,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885118957] [2024-12-02 12:40:30,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885118957] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:40:30,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [590330040] [2024-12-02 12:40:30,679 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:40:30,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:40:30,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91822362-cbf3-4ef6-87d1-cfb7f10129ab/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:40:30,680 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91822362-cbf3-4ef6-87d1-cfb7f10129ab/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:40:30,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91822362-cbf3-4ef6-87d1-cfb7f10129ab/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 12:40:30,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:40:30,871 INFO L256 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-12-02 12:40:30,873 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:40:38,038 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:40:38,038 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:40:43,862 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:40:43,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [590330040] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:40:43,863 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:40:43,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 24, 27] total 58 [2024-12-02 12:40:43,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230721768] [2024-12-02 12:40:43,863 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:40:43,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2024-12-02 12:40:43,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:40:43,864 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2024-12-02 12:40:43,864 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=425, Invalid=2881, Unknown=0, NotChecked=0, Total=3306 [2024-12-02 12:40:43,864 INFO L87 Difference]: Start difference. First operand 625163 states and 771793 transitions. Second operand has 58 states, 58 states have (on average 6.155172413793103) internal successors, (357), 58 states have internal predecessors, (357), 0 states have call successors, (0), 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 12:43:33,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:43:33,348 INFO L93 Difference]: Finished difference Result 2424674 states and 2997044 transitions. [2024-12-02 12:43:33,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 263 states. [2024-12-02 12:43:33,348 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 58 states have (on average 6.155172413793103) internal successors, (357), 58 states have internal predecessors, (357), 0 states have call successors, (0), 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 125 [2024-12-02 12:43:33,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:43:36,898 INFO L225 Difference]: With dead ends: 2424674 [2024-12-02 12:43:36,898 INFO L226 Difference]: Without dead ends: 2250058 [2024-12-02 12:43:37,349 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 522 GetRequests, 204 SyntacticMatches, 1 SemanticMatches, 317 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44788 ImplicationChecksByTransitivity, 62.8s TimeCoverageRelationStatistics Valid=19015, Invalid=82427, Unknown=0, NotChecked=0, Total=101442 [2024-12-02 12:43:37,350 INFO L435 NwaCegarLoop]: 1630 mSDtfsCounter, 33647 mSDsluCounter, 35635 mSDsCounter, 0 mSdLazyCounter, 8266 mSolverCounterSat, 316 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33647 SdHoareTripleChecker+Valid, 37265 SdHoareTripleChecker+Invalid, 8582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 316 IncrementalHoareTripleChecker+Valid, 8266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2024-12-02 12:43:37,350 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33647 Valid, 37265 Invalid, 8582 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [316 Valid, 8266 Invalid, 0 Unknown, 0 Unchecked, 9.5s Time] [2024-12-02 12:43:38,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2250058 states. [2024-12-02 12:44:19,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2250058 to 659438. [2024-12-02 12:44:20,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659438 states, 659436 states have (on average 1.2346383879557683) internal successors, (814165), 659437 states have internal predecessors, (814165), 0 states have call successors, (0), 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 12:44:21,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659438 states to 659438 states and 814165 transitions. [2024-12-02 12:44:21,655 INFO L78 Accepts]: Start accepts. Automaton has 659438 states and 814165 transitions. Word has length 125 [2024-12-02 12:44:21,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:44:21,656 INFO L471 AbstractCegarLoop]: Abstraction has 659438 states and 814165 transitions. [2024-12-02 12:44:21,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 58 states have (on average 6.155172413793103) internal successors, (357), 58 states have internal predecessors, (357), 0 states have call successors, (0), 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 12:44:21,656 INFO L276 IsEmpty]: Start isEmpty. Operand 659438 states and 814165 transitions. [2024-12-02 12:44:21,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 12:44:21,660 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:44:21,660 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:44:21,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91822362-cbf3-4ef6-87d1-cfb7f10129ab/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-12-02 12:44:21,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91822362-cbf3-4ef6-87d1-cfb7f10129ab/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-12-02 12:44:21,861 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:44:21,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:44:21,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1102911411, now seen corresponding path program 1 times [2024-12-02 12:44:21,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:44:21,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924193860] [2024-12-02 12:44:21,862 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:44:21,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:44:21,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:44:23,115 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:44:23,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:44:23,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924193860] [2024-12-02 12:44:23,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924193860] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:44:23,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1883330791] [2024-12-02 12:44:23,115 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:44:23,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:44:23,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91822362-cbf3-4ef6-87d1-cfb7f10129ab/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:44:23,117 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91822362-cbf3-4ef6-87d1-cfb7f10129ab/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:44:23,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91822362-cbf3-4ef6-87d1-cfb7f10129ab/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 12:44:23,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:44:23,320 INFO L256 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 91 conjuncts are in the unsatisfiable core [2024-12-02 12:44:23,325 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:44:57,979 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:44:57,979 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:45:16,910 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:45:16,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1883330791] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:45:16,911 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:45:16,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 43, 38] total 90 [2024-12-02 12:45:16,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498369419] [2024-12-02 12:45:16,911 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:45:16,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 90 states [2024-12-02 12:45:16,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:45:16,913 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2024-12-02 12:45:16,914 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1154, Invalid=6855, Unknown=1, NotChecked=0, Total=8010 [2024-12-02 12:45:16,914 INFO L87 Difference]: Start difference. First operand 659438 states and 814165 transitions. Second operand has 90 states, 90 states have (on average 3.8666666666666667) internal successors, (348), 90 states have internal predecessors, (348), 0 states have call successors, (0), 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 12:45:35,881 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.37s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:45:57,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:46:03,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.37s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:46:11,335 WARN L286 SmtUtils]: Spent 5.06s on a formula simplification. DAG size of input: 208 DAG size of output: 209 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 12:46:18,781 WARN L286 SmtUtils]: Spent 5.59s on a formula simplification. DAG size of input: 208 DAG size of output: 209 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 12:46:25,307 WARN L286 SmtUtils]: Spent 5.71s on a formula simplification. DAG size of input: 205 DAG size of output: 206 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 12:46:34,367 WARN L286 SmtUtils]: Spent 5.43s on a formula simplification. DAG size of input: 205 DAG size of output: 206 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 12:46:43,204 WARN L286 SmtUtils]: Spent 5.57s on a formula simplification. DAG size of input: 198 DAG size of output: 199 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 12:46:49,291 WARN L286 SmtUtils]: Spent 5.87s on a formula simplification. DAG size of input: 204 DAG size of output: 205 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 12:46:56,523 WARN L286 SmtUtils]: Spent 5.64s on a formula simplification. DAG size of input: 201 DAG size of output: 201 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 12:47:05,919 WARN L286 SmtUtils]: Spent 5.62s on a formula simplification. DAG size of input: 200 DAG size of output: 201 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)