./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+nlh-reducer.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_1a345123-fb81-45fa-b820-8f6cf279b030/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a345123-fb81-45fa-b820-8f6cf279b030/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_1a345123-fb81-45fa-b820-8f6cf279b030/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a345123-fb81-45fa-b820-8f6cf279b030/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a345123-fb81-45fa-b820-8f6cf279b030/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_1a345123-fb81-45fa-b820-8f6cf279b030/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 4008c7bad6e9f0faf3cf745d811b7950453991ed3720a7122a910bf51077877c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 11:09:00,153 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 11:09:00,205 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a345123-fb81-45fa-b820-8f6cf279b030/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 11:09:00,209 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 11:09:00,210 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 11:09:00,231 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 11:09:00,231 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 11:09:00,232 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 11:09:00,232 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 11:09:00,232 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 11:09:00,232 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 11:09:00,232 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 11:09:00,232 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 11:09:00,233 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 11:09:00,233 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 11:09:00,233 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 11:09:00,233 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 11:09:00,233 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 11:09:00,233 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 11:09:00,233 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 11:09:00,233 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 11:09:00,233 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 11:09:00,233 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 11:09:00,234 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 11:09:00,234 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 11:09:00,234 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 11:09:00,234 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 11:09:00,234 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 11:09:00,234 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 11:09:00,234 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:09:00,234 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:09:00,234 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:09:00,234 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:09:00,234 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 11:09:00,235 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:09:00,235 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:09:00,235 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:09:00,235 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:09:00,235 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 11:09:00,235 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 11:09:00,235 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 11:09:00,235 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 11:09:00,235 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 11:09:00,235 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 11:09:00,235 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 11:09:00,235 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 11:09:00,236 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 11:09:00,236 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 11:09:00,236 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_1a345123-fb81-45fa-b820-8f6cf279b030/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 -> 4008c7bad6e9f0faf3cf745d811b7950453991ed3720a7122a910bf51077877c [2024-12-02 11:09:00,463 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 11:09:00,471 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 11:09:00,473 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 11:09:00,475 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 11:09:00,475 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 11:09:00,476 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a345123-fb81-45fa-b820-8f6cf279b030/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+nlh-reducer.c [2024-12-02 11:09:03,479 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a345123-fb81-45fa-b820-8f6cf279b030/bin/uautomizer-verify-84ZbGMXZE1/data/c943107f1/d189a3da12254a928432469f997c50de/FLAGbd5781e97 [2024-12-02 11:09:03,744 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 11:09:03,745 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a345123-fb81-45fa-b820-8f6cf279b030/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+nlh-reducer.c [2024-12-02 11:09:03,758 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a345123-fb81-45fa-b820-8f6cf279b030/bin/uautomizer-verify-84ZbGMXZE1/data/c943107f1/d189a3da12254a928432469f997c50de/FLAGbd5781e97 [2024-12-02 11:09:03,777 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a345123-fb81-45fa-b820-8f6cf279b030/bin/uautomizer-verify-84ZbGMXZE1/data/c943107f1/d189a3da12254a928432469f997c50de [2024-12-02 11:09:03,780 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 11:09:03,782 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 11:09:03,784 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 11:09:03,784 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 11:09:03,789 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 11:09:03,790 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:09:03" (1/1) ... [2024-12-02 11:09:03,791 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63ff97b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:09:03, skipping insertion in model container [2024-12-02 11:09:03,792 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:09:03" (1/1) ... [2024-12-02 11:09:03,833 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 11:09:04,121 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_1a345123-fb81-45fa-b820-8f6cf279b030/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+nlh-reducer.c[10525,10538] [2024-12-02 11:09:04,169 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:09:04,186 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 11:09:04,254 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_1a345123-fb81-45fa-b820-8f6cf279b030/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+nlh-reducer.c[10525,10538] [2024-12-02 11:09:04,286 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:09:04,302 INFO L204 MainTranslator]: Completed translation [2024-12-02 11:09:04,302 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:09:04 WrapperNode [2024-12-02 11:09:04,302 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 11:09:04,303 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 11:09:04,303 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 11:09:04,303 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 11:09:04,308 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:09:04" (1/1) ... [2024-12-02 11:09:04,317 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:09:04" (1/1) ... [2024-12-02 11:09:04,345 INFO L138 Inliner]: procedures = 26, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 917 [2024-12-02 11:09:04,346 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 11:09:04,346 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 11:09:04,346 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 11:09:04,346 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 11:09:04,354 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:09:04" (1/1) ... [2024-12-02 11:09:04,354 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:09:04" (1/1) ... [2024-12-02 11:09:04,358 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:09:04" (1/1) ... [2024-12-02 11:09:04,375 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 11:09:04,375 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:09:04" (1/1) ... [2024-12-02 11:09:04,376 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:09:04" (1/1) ... [2024-12-02 11:09:04,386 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:09:04" (1/1) ... [2024-12-02 11:09:04,387 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:09:04" (1/1) ... [2024-12-02 11:09:04,393 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:09:04" (1/1) ... [2024-12-02 11:09:04,396 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:09:04" (1/1) ... [2024-12-02 11:09:04,398 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:09:04" (1/1) ... [2024-12-02 11:09:04,403 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 11:09:04,404 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 11:09:04,404 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 11:09:04,404 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 11:09:04,405 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:09:04" (1/1) ... [2024-12-02 11:09:04,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:09:04,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a345123-fb81-45fa-b820-8f6cf279b030/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:09:04,442 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a345123-fb81-45fa-b820-8f6cf279b030/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 11:09:04,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a345123-fb81-45fa-b820-8f6cf279b030/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 11:09:04,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 11:09:04,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 11:09:04,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 11:09:04,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 11:09:04,597 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 11:09:04,599 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 11:09:05,309 INFO L? ?]: Removed 107 outVars from TransFormulas that were not future-live. [2024-12-02 11:09:05,309 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 11:09:05,322 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 11:09:05,323 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 11:09:05,323 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:09:05 BoogieIcfgContainer [2024-12-02 11:09:05,323 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 11:09:05,325 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 11:09:05,325 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 11:09:05,329 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 11:09:05,329 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:09:03" (1/3) ... [2024-12-02 11:09:05,329 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ed02f0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:09:05, skipping insertion in model container [2024-12-02 11:09:05,330 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:09:04" (2/3) ... [2024-12-02 11:09:05,330 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ed02f0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:09:05, skipping insertion in model container [2024-12-02 11:09:05,330 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:09:05" (3/3) ... [2024-12-02 11:09:05,331 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.ufo.BOUNDED-14.pals.c.v+nlh-reducer.c [2024-12-02 11:09:05,342 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 11:09:05,344 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.7.ufo.BOUNDED-14.pals.c.v+nlh-reducer.c that has 1 procedures, 202 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-12-02 11:09:05,393 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:09:05,403 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;@7d5c2504, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:09:05,403 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 11:09:05,407 INFO L276 IsEmpty]: Start isEmpty. Operand has 202 states, 200 states have (on average 1.765) internal successors, (353), 201 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:05,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 11:09:05,414 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:09:05,414 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:09:05,415 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:09:05,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:09:05,419 INFO L85 PathProgramCache]: Analyzing trace with hash -2055920229, now seen corresponding path program 1 times [2024-12-02 11:09:05,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:09:05,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817286574] [2024-12-02 11:09:05,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:09:05,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:09:05,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:09:06,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:09:06,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:09:06,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817286574] [2024-12-02 11:09:06,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817286574] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:09:06,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:09:06,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 11:09:06,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780568084] [2024-12-02 11:09:06,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:09:06,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 11:09:06,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:09:06,195 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 11:09:06,196 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:09:06,198 INFO L87 Difference]: Start difference. First operand has 202 states, 200 states have (on average 1.765) internal successors, (353), 201 states have internal predecessors, (353), 0 states have call successors, (0), 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 9 states, 9 states have (on average 12.0) internal successors, (108), 9 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:07,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:09:07,031 INFO L93 Difference]: Finished difference Result 1459 states and 2342 transitions. [2024-12-02 11:09:07,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 11:09:07,033 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 9 states have internal predecessors, (108), 0 states have call successors, (0), 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 108 [2024-12-02 11:09:07,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:09:07,049 INFO L225 Difference]: With dead ends: 1459 [2024-12-02 11:09:07,049 INFO L226 Difference]: Without dead ends: 1333 [2024-12-02 11:09:07,053 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2024-12-02 11:09:07,056 INFO L435 NwaCegarLoop]: 868 mSDtfsCounter, 2676 mSDsluCounter, 6172 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2676 SdHoareTripleChecker+Valid, 7040 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 11:09:07,057 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2676 Valid, 7040 Invalid, 494 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 11:09:07,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1333 states. [2024-12-02 11:09:07,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1333 to 304. [2024-12-02 11:09:07,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 303 states have (on average 1.4422442244224423) internal successors, (437), 303 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:07,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 437 transitions. [2024-12-02 11:09:07,127 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 437 transitions. Word has length 108 [2024-12-02 11:09:07,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:09:07,127 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 437 transitions. [2024-12-02 11:09:07,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 9 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:07,128 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 437 transitions. [2024-12-02 11:09:07,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 11:09:07,130 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:09:07,130 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:09:07,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 11:09:07,130 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:09:07,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:09:07,131 INFO L85 PathProgramCache]: Analyzing trace with hash -924120728, now seen corresponding path program 1 times [2024-12-02 11:09:07,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:09:07,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107151268] [2024-12-02 11:09:07,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:09:07,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:09:07,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:09:07,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:09:07,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:09:07,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107151268] [2024-12-02 11:09:07,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107151268] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:09:07,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:09:07,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 11:09:07,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677054394] [2024-12-02 11:09:07,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:09:07,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 11:09:07,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:09:07,509 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 11:09:07,509 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:09:07,509 INFO L87 Difference]: Start difference. First operand 304 states and 437 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:07,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:09:07,901 INFO L93 Difference]: Finished difference Result 1560 states and 2419 transitions. [2024-12-02 11:09:07,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:09:07,902 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2024-12-02 11:09:07,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:09:07,907 INFO L225 Difference]: With dead ends: 1560 [2024-12-02 11:09:07,907 INFO L226 Difference]: Without dead ends: 1400 [2024-12-02 11:09:07,908 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 11:09:07,909 INFO L435 NwaCegarLoop]: 831 mSDtfsCounter, 1945 mSDsluCounter, 3187 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1945 SdHoareTripleChecker+Valid, 4018 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:09:07,909 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1945 Valid, 4018 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 11:09:07,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1400 states. [2024-12-02 11:09:07,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1400 to 483. [2024-12-02 11:09:07,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 482 states have (on average 1.495850622406639) internal successors, (721), 482 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:07,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 721 transitions. [2024-12-02 11:09:07,951 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 721 transitions. Word has length 110 [2024-12-02 11:09:07,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:09:07,952 INFO L471 AbstractCegarLoop]: Abstraction has 483 states and 721 transitions. [2024-12-02 11:09:07,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:07,952 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 721 transitions. [2024-12-02 11:09:07,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 11:09:07,954 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:09:07,954 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:09:07,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 11:09:07,954 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:09:07,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:09:07,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1292919580, now seen corresponding path program 1 times [2024-12-02 11:09:07,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:09:07,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190106572] [2024-12-02 11:09:07,955 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:09:07,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:09:07,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:09:08,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:09:08,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:09:08,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190106572] [2024-12-02 11:09:08,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190106572] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:09:08,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:09:08,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 11:09:08,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374691748] [2024-12-02 11:09:08,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:09:08,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 11:09:08,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:09:08,306 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 11:09:08,306 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:09:08,306 INFO L87 Difference]: Start difference. First operand 483 states and 721 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:08,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:09:08,686 INFO L93 Difference]: Finished difference Result 1739 states and 2703 transitions. [2024-12-02 11:09:08,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:09:08,688 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2024-12-02 11:09:08,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:09:08,694 INFO L225 Difference]: With dead ends: 1739 [2024-12-02 11:09:08,694 INFO L226 Difference]: Without dead ends: 1579 [2024-12-02 11:09:08,695 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 11:09:08,696 INFO L435 NwaCegarLoop]: 722 mSDtfsCounter, 1938 mSDsluCounter, 2650 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1938 SdHoareTripleChecker+Valid, 3372 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:09:08,696 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1938 Valid, 3372 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:09:08,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1579 states. [2024-12-02 11:09:08,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1579 to 741. [2024-12-02 11:09:08,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 741 states, 740 states have (on average 1.527027027027027) internal successors, (1130), 740 states have internal predecessors, (1130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:08,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 741 states to 741 states and 1130 transitions. [2024-12-02 11:09:08,728 INFO L78 Accepts]: Start accepts. Automaton has 741 states and 1130 transitions. Word has length 110 [2024-12-02 11:09:08,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:09:08,729 INFO L471 AbstractCegarLoop]: Abstraction has 741 states and 1130 transitions. [2024-12-02 11:09:08,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:08,729 INFO L276 IsEmpty]: Start isEmpty. Operand 741 states and 1130 transitions. [2024-12-02 11:09:08,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 11:09:08,731 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:09:08,731 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:09:08,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 11:09:08,731 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:09:08,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:09:08,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1295133060, now seen corresponding path program 1 times [2024-12-02 11:09:08,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:09:08,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235821026] [2024-12-02 11:09:08,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:09:08,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:09:08,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:09:09,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:09:09,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:09:09,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235821026] [2024-12-02 11:09:09,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235821026] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:09:09,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:09:09,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 11:09:09,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689069868] [2024-12-02 11:09:09,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:09:09,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 11:09:09,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:09:09,045 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 11:09:09,045 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:09:09,045 INFO L87 Difference]: Start difference. First operand 741 states and 1130 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:09,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:09:09,349 INFO L93 Difference]: Finished difference Result 1913 states and 2979 transitions. [2024-12-02 11:09:09,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:09:09,350 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2024-12-02 11:09:09,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:09:09,356 INFO L225 Difference]: With dead ends: 1913 [2024-12-02 11:09:09,356 INFO L226 Difference]: Without dead ends: 1753 [2024-12-02 11:09:09,357 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 11:09:09,357 INFO L435 NwaCegarLoop]: 613 mSDtfsCounter, 2146 mSDsluCounter, 2093 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2146 SdHoareTripleChecker+Valid, 2706 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:09:09,358 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2146 Valid, 2706 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:09:09,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1753 states. [2024-12-02 11:09:09,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1753 to 915. [2024-12-02 11:09:09,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 915 states, 914 states have (on average 1.538293216630197) internal successors, (1406), 914 states have internal predecessors, (1406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:09,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915 states to 915 states and 1406 transitions. [2024-12-02 11:09:09,383 INFO L78 Accepts]: Start accepts. Automaton has 915 states and 1406 transitions. Word has length 110 [2024-12-02 11:09:09,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:09:09,383 INFO L471 AbstractCegarLoop]: Abstraction has 915 states and 1406 transitions. [2024-12-02 11:09:09,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:09,384 INFO L276 IsEmpty]: Start isEmpty. Operand 915 states and 1406 transitions. [2024-12-02 11:09:09,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 11:09:09,385 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:09:09,386 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:09:09,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 11:09:09,386 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:09:09,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:09:09,387 INFO L85 PathProgramCache]: Analyzing trace with hash 722932112, now seen corresponding path program 1 times [2024-12-02 11:09:09,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:09:09,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941164235] [2024-12-02 11:09:09,387 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:09:09,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:09:09,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:09:09,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:09:09,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:09:09,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941164235] [2024-12-02 11:09:09,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941164235] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:09:09,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:09:09,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 11:09:09,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295035893] [2024-12-02 11:09:09,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:09:09,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 11:09:09,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:09:09,628 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 11:09:09,628 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:09:09,628 INFO L87 Difference]: Start difference. First operand 915 states and 1406 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:09,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:09:09,962 INFO L93 Difference]: Finished difference Result 2082 states and 3247 transitions. [2024-12-02 11:09:09,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:09:09,962 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2024-12-02 11:09:09,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:09:09,969 INFO L225 Difference]: With dead ends: 2082 [2024-12-02 11:09:09,969 INFO L226 Difference]: Without dead ends: 1922 [2024-12-02 11:09:09,970 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 11:09:09,971 INFO L435 NwaCegarLoop]: 496 mSDtfsCounter, 2346 mSDsluCounter, 2189 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2346 SdHoareTripleChecker+Valid, 2685 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:09:09,971 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2346 Valid, 2685 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:09:09,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1922 states. [2024-12-02 11:09:10,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1922 to 1079. [2024-12-02 11:09:10,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1079 states, 1078 states have (on average 1.5454545454545454) internal successors, (1666), 1078 states have internal predecessors, (1666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:10,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1666 transitions. [2024-12-02 11:09:10,019 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1666 transitions. Word has length 110 [2024-12-02 11:09:10,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:09:10,019 INFO L471 AbstractCegarLoop]: Abstraction has 1079 states and 1666 transitions. [2024-12-02 11:09:10,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:10,019 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1666 transitions. [2024-12-02 11:09:10,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 11:09:10,021 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:09:10,021 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:09:10,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 11:09:10,021 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:09:10,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:09:10,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1525369156, now seen corresponding path program 1 times [2024-12-02 11:09:10,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:09:10,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040069023] [2024-12-02 11:09:10,022 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:09:10,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:09:10,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:09:10,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:09:10,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:09:10,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040069023] [2024-12-02 11:09:10,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040069023] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:09:10,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:09:10,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 11:09:10,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127063509] [2024-12-02 11:09:10,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:09:10,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 11:09:10,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:09:10,310 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 11:09:10,311 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:09:10,311 INFO L87 Difference]: Start difference. First operand 1079 states and 1666 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:10,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:09:10,602 INFO L93 Difference]: Finished difference Result 2241 states and 3499 transitions. [2024-12-02 11:09:10,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:09:10,602 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2024-12-02 11:09:10,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:09:10,609 INFO L225 Difference]: With dead ends: 2241 [2024-12-02 11:09:10,609 INFO L226 Difference]: Without dead ends: 2081 [2024-12-02 11:09:10,610 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 11:09:10,611 INFO L435 NwaCegarLoop]: 387 mSDtfsCounter, 2847 mSDsluCounter, 2205 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2847 SdHoareTripleChecker+Valid, 2592 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:09:10,611 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2847 Valid, 2592 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:09:10,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2081 states. [2024-12-02 11:09:10,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2081 to 1238. [2024-12-02 11:09:10,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1238 states, 1237 states have (on average 1.5505254648342766) internal successors, (1918), 1237 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:10,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 1918 transitions. [2024-12-02 11:09:10,653 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 1918 transitions. Word has length 110 [2024-12-02 11:09:10,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:09:10,653 INFO L471 AbstractCegarLoop]: Abstraction has 1238 states and 1918 transitions. [2024-12-02 11:09:10,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:10,654 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 1918 transitions. [2024-12-02 11:09:10,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 11:09:10,655 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:09:10,655 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:09:10,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 11:09:10,656 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:09:10,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:09:10,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1186267839, now seen corresponding path program 1 times [2024-12-02 11:09:10,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:09:10,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560522542] [2024-12-02 11:09:10,656 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:09:10,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:09:10,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:09:11,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:09:11,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:09:11,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560522542] [2024-12-02 11:09:11,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560522542] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:09:11,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:09:11,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 11:09:11,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119345460] [2024-12-02 11:09:11,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:09:11,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 11:09:11,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:09:11,182 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 11:09:11,182 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:09:11,182 INFO L87 Difference]: Start difference. First operand 1238 states and 1918 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:11,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:09:11,579 INFO L93 Difference]: Finished difference Result 2269 states and 3552 transitions. [2024-12-02 11:09:11,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:09:11,579 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2024-12-02 11:09:11,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:09:11,581 INFO L225 Difference]: With dead ends: 2269 [2024-12-02 11:09:11,581 INFO L226 Difference]: Without dead ends: 1240 [2024-12-02 11:09:11,582 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2024-12-02 11:09:11,583 INFO L435 NwaCegarLoop]: 260 mSDtfsCounter, 656 mSDsluCounter, 975 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 656 SdHoareTripleChecker+Valid, 1235 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:09:11,583 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [656 Valid, 1235 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:09:11,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1240 states. [2024-12-02 11:09:11,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1240 to 1238. [2024-12-02 11:09:11,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1238 states, 1237 states have (on average 1.5448666127728374) internal successors, (1911), 1237 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:11,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 1911 transitions. [2024-12-02 11:09:11,600 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 1911 transitions. Word has length 110 [2024-12-02 11:09:11,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:09:11,600 INFO L471 AbstractCegarLoop]: Abstraction has 1238 states and 1911 transitions. [2024-12-02 11:09:11,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:11,600 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 1911 transitions. [2024-12-02 11:09:11,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 11:09:11,601 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:09:11,601 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:09:11,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 11:09:11,601 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:09:11,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:09:11,602 INFO L85 PathProgramCache]: Analyzing trace with hash 943143488, now seen corresponding path program 1 times [2024-12-02 11:09:11,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:09:11,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246179143] [2024-12-02 11:09:11,602 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:09:11,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:09:11,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:09:11,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:09:11,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:09:11,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246179143] [2024-12-02 11:09:11,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246179143] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:09:11,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:09:11,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:09:11,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125025523] [2024-12-02 11:09:11,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:09:11,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:09:11,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:09:11,681 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:09:11,681 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:09:11,681 INFO L87 Difference]: Start difference. First operand 1238 states and 1911 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:11,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:09:11,708 INFO L93 Difference]: Finished difference Result 3212 states and 5022 transitions. [2024-12-02 11:09:11,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:09:11,708 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2024-12-02 11:09:11,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:09:11,712 INFO L225 Difference]: With dead ends: 3212 [2024-12-02 11:09:11,712 INFO L226 Difference]: Without dead ends: 2183 [2024-12-02 11:09:11,713 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:09:11,714 INFO L435 NwaCegarLoop]: 382 mSDtfsCounter, 115 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:09:11,714 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 640 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:09:11,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2183 states. [2024-12-02 11:09:11,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2183 to 2181. [2024-12-02 11:09:11,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2181 states, 2180 states have (on average 1.5454128440366972) internal successors, (3369), 2180 states have internal predecessors, (3369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:11,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2181 states to 2181 states and 3369 transitions. [2024-12-02 11:09:11,743 INFO L78 Accepts]: Start accepts. Automaton has 2181 states and 3369 transitions. Word has length 110 [2024-12-02 11:09:11,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:09:11,743 INFO L471 AbstractCegarLoop]: Abstraction has 2181 states and 3369 transitions. [2024-12-02 11:09:11,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:11,744 INFO L276 IsEmpty]: Start isEmpty. Operand 2181 states and 3369 transitions. [2024-12-02 11:09:11,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 11:09:11,744 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:09:11,745 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:09:11,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 11:09:11,745 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:09:11,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:09:11,745 INFO L85 PathProgramCache]: Analyzing trace with hash 2091479554, now seen corresponding path program 1 times [2024-12-02 11:09:11,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:09:11,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870227496] [2024-12-02 11:09:11,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:09:11,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:09:11,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:09:11,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:09:11,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:09:11,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870227496] [2024-12-02 11:09:11,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870227496] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:09:11,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:09:11,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 11:09:11,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595662424] [2024-12-02 11:09:11,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:09:11,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 11:09:11,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:09:11,943 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 11:09:11,943 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:09:11,943 INFO L87 Difference]: Start difference. First operand 2181 states and 3369 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:12,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:09:12,261 INFO L93 Difference]: Finished difference Result 4357 states and 6769 transitions. [2024-12-02 11:09:12,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:09:12,262 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2024-12-02 11:09:12,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:09:12,273 INFO L225 Difference]: With dead ends: 4357 [2024-12-02 11:09:12,273 INFO L226 Difference]: Without dead ends: 4052 [2024-12-02 11:09:12,275 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 11:09:12,276 INFO L435 NwaCegarLoop]: 488 mSDtfsCounter, 2149 mSDsluCounter, 2487 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2149 SdHoareTripleChecker+Valid, 2975 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:09:12,276 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2149 Valid, 2975 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:09:12,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4052 states. [2024-12-02 11:09:12,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4052 to 2484. [2024-12-02 11:09:12,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2484 states, 2483 states have (on average 1.5477245267821185) internal successors, (3843), 2483 states have internal predecessors, (3843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:12,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2484 states to 2484 states and 3843 transitions. [2024-12-02 11:09:12,364 INFO L78 Accepts]: Start accepts. Automaton has 2484 states and 3843 transitions. Word has length 110 [2024-12-02 11:09:12,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:09:12,364 INFO L471 AbstractCegarLoop]: Abstraction has 2484 states and 3843 transitions. [2024-12-02 11:09:12,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:12,364 INFO L276 IsEmpty]: Start isEmpty. Operand 2484 states and 3843 transitions. [2024-12-02 11:09:12,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 11:09:12,366 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:09:12,366 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:09:12,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 11:09:12,366 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:09:12,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:09:12,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1690423504, now seen corresponding path program 1 times [2024-12-02 11:09:12,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:09:12,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832341376] [2024-12-02 11:09:12,367 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:09:12,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:09:12,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:09:12,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:09:12,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:09:12,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832341376] [2024-12-02 11:09:12,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832341376] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:09:12,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:09:12,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 11:09:12,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063298610] [2024-12-02 11:09:12,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:09:12,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 11:09:12,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:09:12,628 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 11:09:12,628 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:09:12,628 INFO L87 Difference]: Start difference. First operand 2484 states and 3843 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:12,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:09:12,903 INFO L93 Difference]: Finished difference Result 4666 states and 7252 transitions. [2024-12-02 11:09:12,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:09:12,904 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2024-12-02 11:09:12,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:09:12,915 INFO L225 Difference]: With dead ends: 4666 [2024-12-02 11:09:12,915 INFO L226 Difference]: Without dead ends: 4361 [2024-12-02 11:09:12,916 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 11:09:12,917 INFO L435 NwaCegarLoop]: 405 mSDtfsCounter, 2199 mSDsluCounter, 3271 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2199 SdHoareTripleChecker+Valid, 3676 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:09:12,917 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2199 Valid, 3676 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:09:12,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4361 states. [2024-12-02 11:09:12,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4361 to 2798. [2024-12-02 11:09:12,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2798 states, 2797 states have (on average 1.5495173400071505) internal successors, (4334), 2797 states have internal predecessors, (4334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:12,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2798 states to 2798 states and 4334 transitions. [2024-12-02 11:09:12,981 INFO L78 Accepts]: Start accepts. Automaton has 2798 states and 4334 transitions. Word has length 110 [2024-12-02 11:09:12,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:09:12,982 INFO L471 AbstractCegarLoop]: Abstraction has 2798 states and 4334 transitions. [2024-12-02 11:09:12,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:12,982 INFO L276 IsEmpty]: Start isEmpty. Operand 2798 states and 4334 transitions. [2024-12-02 11:09:12,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-12-02 11:09:12,983 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:09:12,983 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:09:12,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 11:09:12,984 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:09:12,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:09:12,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1882311825, now seen corresponding path program 1 times [2024-12-02 11:09:12,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:09:12,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493575917] [2024-12-02 11:09:12,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:09:12,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:09:13,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:09:13,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:09:13,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:09:13,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493575917] [2024-12-02 11:09:13,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493575917] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:09:13,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:09:13,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:09:13,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615781851] [2024-12-02 11:09:13,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:09:13,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:09:13,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:09:13,126 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:09:13,126 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:09:13,126 INFO L87 Difference]: Start difference. First operand 2798 states and 4334 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 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 11:09:13,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:09:13,284 INFO L93 Difference]: Finished difference Result 5539 states and 8610 transitions. [2024-12-02 11:09:13,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:09:13,285 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 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 11:09:13,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:09:13,292 INFO L225 Difference]: With dead ends: 5539 [2024-12-02 11:09:13,292 INFO L226 Difference]: Without dead ends: 2798 [2024-12-02 11:09:13,295 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:09:13,295 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 742 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 742 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:09:13,296 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [742 Valid, 149 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:09:13,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2798 states. [2024-12-02 11:09:13,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2798 to 2798. [2024-12-02 11:09:13,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2798 states, 2797 states have (on average 1.5370039327851268) internal successors, (4299), 2797 states have internal predecessors, (4299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:13,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2798 states to 2798 states and 4299 transitions. [2024-12-02 11:09:13,344 INFO L78 Accepts]: Start accepts. Automaton has 2798 states and 4299 transitions. Word has length 111 [2024-12-02 11:09:13,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:09:13,345 INFO L471 AbstractCegarLoop]: Abstraction has 2798 states and 4299 transitions. [2024-12-02 11:09:13,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:13,345 INFO L276 IsEmpty]: Start isEmpty. Operand 2798 states and 4299 transitions. [2024-12-02 11:09:13,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-12-02 11:09:13,346 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:09:13,346 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:09:13,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 11:09:13,347 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:09:13,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:09:13,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1093414131, now seen corresponding path program 1 times [2024-12-02 11:09:13,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:09:13,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457637252] [2024-12-02 11:09:13,347 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:09:13,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:09:13,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:09:13,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:09:13,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:09:13,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457637252] [2024-12-02 11:09:13,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457637252] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:09:13,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:09:13,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:09:13,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868040321] [2024-12-02 11:09:13,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:09:13,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:09:13,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:09:13,492 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:09:13,492 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:09:13,492 INFO L87 Difference]: Start difference. First operand 2798 states and 4299 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:13,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:09:13,647 INFO L93 Difference]: Finished difference Result 5523 states and 8521 transitions. [2024-12-02 11:09:13,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:09:13,647 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2024-12-02 11:09:13,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:09:13,655 INFO L225 Difference]: With dead ends: 5523 [2024-12-02 11:09:13,656 INFO L226 Difference]: Without dead ends: 2798 [2024-12-02 11:09:13,659 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:09:13,659 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 691 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 691 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:09:13,660 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [691 Valid, 181 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:09:13,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2798 states. [2024-12-02 11:09:13,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2798 to 2798. [2024-12-02 11:09:13,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2798 states, 2797 states have (on average 1.5244905255631034) internal successors, (4264), 2797 states have internal predecessors, (4264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:13,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2798 states to 2798 states and 4264 transitions. [2024-12-02 11:09:13,703 INFO L78 Accepts]: Start accepts. Automaton has 2798 states and 4264 transitions. Word has length 112 [2024-12-02 11:09:13,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:09:13,704 INFO L471 AbstractCegarLoop]: Abstraction has 2798 states and 4264 transitions. [2024-12-02 11:09:13,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:13,704 INFO L276 IsEmpty]: Start isEmpty. Operand 2798 states and 4264 transitions. [2024-12-02 11:09:13,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-12-02 11:09:13,705 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:09:13,705 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:09:13,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 11:09:13,706 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:09:13,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:09:13,706 INFO L85 PathProgramCache]: Analyzing trace with hash 596896751, now seen corresponding path program 1 times [2024-12-02 11:09:13,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:09:13,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479491929] [2024-12-02 11:09:13,707 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:09:13,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:09:13,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:09:13,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:09:13,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:09:13,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479491929] [2024-12-02 11:09:13,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479491929] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:09:13,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:09:13,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:09:13,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20450765] [2024-12-02 11:09:13,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:09:13,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:09:13,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:09:13,834 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:09:13,834 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:09:13,834 INFO L87 Difference]: Start difference. First operand 2798 states and 4264 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 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 11:09:13,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:09:13,979 INFO L93 Difference]: Finished difference Result 5515 states and 8442 transitions. [2024-12-02 11:09:13,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:09:13,980 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 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 11:09:13,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:09:13,985 INFO L225 Difference]: With dead ends: 5515 [2024-12-02 11:09:13,986 INFO L226 Difference]: Without dead ends: 2798 [2024-12-02 11:09:13,988 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:09:13,989 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 663 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 663 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:09:13,989 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [663 Valid, 201 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:09:13,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2798 states. [2024-12-02 11:09:14,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2798 to 2798. [2024-12-02 11:09:14,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2798 states, 2797 states have (on average 1.5119771183410797) internal successors, (4229), 2797 states have internal predecessors, (4229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:14,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2798 states to 2798 states and 4229 transitions. [2024-12-02 11:09:14,028 INFO L78 Accepts]: Start accepts. Automaton has 2798 states and 4229 transitions. Word has length 113 [2024-12-02 11:09:14,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:09:14,028 INFO L471 AbstractCegarLoop]: Abstraction has 2798 states and 4229 transitions. [2024-12-02 11:09:14,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 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 11:09:14,028 INFO L276 IsEmpty]: Start isEmpty. Operand 2798 states and 4229 transitions. [2024-12-02 11:09:14,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-12-02 11:09:14,030 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:09:14,030 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:09:14,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 11:09:14,030 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:09:14,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:09:14,031 INFO L85 PathProgramCache]: Analyzing trace with hash 914047091, now seen corresponding path program 1 times [2024-12-02 11:09:14,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:09:14,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226112643] [2024-12-02 11:09:14,031 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:09:14,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:09:14,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:09:14,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:09:14,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:09:14,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226112643] [2024-12-02 11:09:14,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226112643] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:09:14,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:09:14,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:09:14,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968597920] [2024-12-02 11:09:14,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:09:14,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:09:14,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:09:14,161 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:09:14,161 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:09:14,161 INFO L87 Difference]: Start difference. First operand 2798 states and 4229 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:14,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:09:14,302 INFO L93 Difference]: Finished difference Result 5527 states and 8386 transitions. [2024-12-02 11:09:14,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:09:14,303 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2024-12-02 11:09:14,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:09:14,308 INFO L225 Difference]: With dead ends: 5527 [2024-12-02 11:09:14,309 INFO L226 Difference]: Without dead ends: 2798 [2024-12-02 11:09:14,311 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:09:14,312 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 690 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:09:14,312 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [690 Valid, 173 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:09:14,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2798 states. [2024-12-02 11:09:14,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2798 to 2798. [2024-12-02 11:09:14,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2798 states, 2797 states have (on average 1.499463711119056) internal successors, (4194), 2797 states have internal predecessors, (4194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:14,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2798 states to 2798 states and 4194 transitions. [2024-12-02 11:09:14,350 INFO L78 Accepts]: Start accepts. Automaton has 2798 states and 4194 transitions. Word has length 114 [2024-12-02 11:09:14,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:09:14,350 INFO L471 AbstractCegarLoop]: Abstraction has 2798 states and 4194 transitions. [2024-12-02 11:09:14,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:14,350 INFO L276 IsEmpty]: Start isEmpty. Operand 2798 states and 4194 transitions. [2024-12-02 11:09:14,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-12-02 11:09:14,351 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:09:14,351 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:09:14,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 11:09:14,352 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:09:14,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:09:14,352 INFO L85 PathProgramCache]: Analyzing trace with hash -932538653, now seen corresponding path program 1 times [2024-12-02 11:09:14,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:09:14,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043625383] [2024-12-02 11:09:14,353 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:09:14,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:09:14,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:09:14,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:09:14,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:09:14,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043625383] [2024-12-02 11:09:14,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043625383] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:09:14,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:09:14,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:09:14,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368257790] [2024-12-02 11:09:14,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:09:14,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:09:14,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:09:14,474 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:09:14,474 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:09:14,475 INFO L87 Difference]: Start difference. First operand 2798 states and 4194 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 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 11:09:14,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:09:14,618 INFO L93 Difference]: Finished difference Result 5535 states and 8326 transitions. [2024-12-02 11:09:14,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:09:14,618 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 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 11:09:14,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:09:14,624 INFO L225 Difference]: With dead ends: 5535 [2024-12-02 11:09:14,624 INFO L226 Difference]: Without dead ends: 2798 [2024-12-02 11:09:14,626 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:09:14,627 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 706 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 706 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:09:14,627 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [706 Valid, 157 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:09:14,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2798 states. [2024-12-02 11:09:14,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2798 to 2798. [2024-12-02 11:09:14,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2798 states, 2797 states have (on average 1.4869503038970326) internal successors, (4159), 2797 states have internal predecessors, (4159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:14,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2798 states to 2798 states and 4159 transitions. [2024-12-02 11:09:14,662 INFO L78 Accepts]: Start accepts. Automaton has 2798 states and 4159 transitions. Word has length 115 [2024-12-02 11:09:14,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:09:14,663 INFO L471 AbstractCegarLoop]: Abstraction has 2798 states and 4159 transitions. [2024-12-02 11:09:14,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 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 11:09:14,663 INFO L276 IsEmpty]: Start isEmpty. Operand 2798 states and 4159 transitions. [2024-12-02 11:09:14,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-12-02 11:09:14,664 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:09:14,664 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:09:14,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 11:09:14,665 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:09:14,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:09:14,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1866315149, now seen corresponding path program 1 times [2024-12-02 11:09:14,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:09:14,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477078433] [2024-12-02 11:09:14,665 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:09:14,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:09:14,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:09:14,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:09:14,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:09:14,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477078433] [2024-12-02 11:09:14,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477078433] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:09:14,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:09:14,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:09:14,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110166652] [2024-12-02 11:09:14,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:09:14,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:09:14,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:09:14,823 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:09:14,823 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:09:14,824 INFO L87 Difference]: Start difference. First operand 2798 states and 4159 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:14,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:09:14,978 INFO L93 Difference]: Finished difference Result 5531 states and 8252 transitions. [2024-12-02 11:09:14,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:09:14,979 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2024-12-02 11:09:14,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:09:14,985 INFO L225 Difference]: With dead ends: 5531 [2024-12-02 11:09:14,985 INFO L226 Difference]: Without dead ends: 2798 [2024-12-02 11:09:14,988 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:09:14,988 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 688 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 688 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:09:14,989 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [688 Valid, 165 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:09:14,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2798 states. [2024-12-02 11:09:15,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2798 to 2798. [2024-12-02 11:09:15,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2798 states, 2797 states have (on average 1.474436896675009) internal successors, (4124), 2797 states have internal predecessors, (4124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:15,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2798 states to 2798 states and 4124 transitions. [2024-12-02 11:09:15,024 INFO L78 Accepts]: Start accepts. Automaton has 2798 states and 4124 transitions. Word has length 116 [2024-12-02 11:09:15,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:09:15,025 INFO L471 AbstractCegarLoop]: Abstraction has 2798 states and 4124 transitions. [2024-12-02 11:09:15,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:15,025 INFO L276 IsEmpty]: Start isEmpty. Operand 2798 states and 4124 transitions. [2024-12-02 11:09:15,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-12-02 11:09:15,026 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:09:15,026 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:09:15,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 11:09:15,026 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:09:15,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:09:15,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1607436073, now seen corresponding path program 1 times [2024-12-02 11:09:15,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:09:15,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063781988] [2024-12-02 11:09:15,027 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:09:15,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:09:15,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:09:15,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:09:15,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:09:15,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063781988] [2024-12-02 11:09:15,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063781988] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:09:15,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:09:15,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:09:15,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840856123] [2024-12-02 11:09:15,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:09:15,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:09:15,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:09:15,110 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:09:15,110 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:09:15,110 INFO L87 Difference]: Start difference. First operand 2798 states and 4124 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 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 11:09:15,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:09:15,251 INFO L93 Difference]: Finished difference Result 5519 states and 8170 transitions. [2024-12-02 11:09:15,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:09:15,252 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 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 11:09:15,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:09:15,255 INFO L225 Difference]: With dead ends: 5519 [2024-12-02 11:09:15,255 INFO L226 Difference]: Without dead ends: 2798 [2024-12-02 11:09:15,257 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:09:15,257 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 646 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 646 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:09:15,257 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [646 Valid, 189 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:09:15,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2798 states. [2024-12-02 11:09:15,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2798 to 2798. [2024-12-02 11:09:15,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2798 states, 2797 states have (on average 1.4619234894529853) internal successors, (4089), 2797 states have internal predecessors, (4089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:15,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2798 states to 2798 states and 4089 transitions. [2024-12-02 11:09:15,279 INFO L78 Accepts]: Start accepts. Automaton has 2798 states and 4089 transitions. Word has length 117 [2024-12-02 11:09:15,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:09:15,279 INFO L471 AbstractCegarLoop]: Abstraction has 2798 states and 4089 transitions. [2024-12-02 11:09:15,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 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 11:09:15,280 INFO L276 IsEmpty]: Start isEmpty. Operand 2798 states and 4089 transitions. [2024-12-02 11:09:15,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-12-02 11:09:15,281 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:09:15,281 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:09:15,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 11:09:15,281 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:09:15,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:09:15,282 INFO L85 PathProgramCache]: Analyzing trace with hash 154166167, now seen corresponding path program 1 times [2024-12-02 11:09:15,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:09:15,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827070913] [2024-12-02 11:09:15,282 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:09:15,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:09:15,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:09:15,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:09:15,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:09:15,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827070913] [2024-12-02 11:09:15,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827070913] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:09:15,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:09:15,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 11:09:15,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698955441] [2024-12-02 11:09:15,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:09:15,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 11:09:15,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:09:15,736 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 11:09:15,736 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-12-02 11:09:15,736 INFO L87 Difference]: Start difference. First operand 2798 states and 4089 transitions. Second operand has 13 states, 13 states have (on average 9.076923076923077) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:16,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:09:16,467 INFO L93 Difference]: Finished difference Result 8121 states and 11895 transitions. [2024-12-02 11:09:16,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 11:09:16,467 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.076923076923077) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 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 118 [2024-12-02 11:09:16,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:09:16,477 INFO L225 Difference]: With dead ends: 8121 [2024-12-02 11:09:16,477 INFO L226 Difference]: Without dead ends: 5506 [2024-12-02 11:09:16,479 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=146, Invalid=454, Unknown=0, NotChecked=0, Total=600 [2024-12-02 11:09:16,479 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 1170 mSDsluCounter, 714 mSDsCounter, 0 mSdLazyCounter, 798 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1170 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 11:09:16,480 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1170 Valid, 854 Invalid, 809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 798 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 11:09:16,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5506 states. [2024-12-02 11:09:16,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5506 to 2798. [2024-12-02 11:09:16,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2798 states, 2797 states have (on average 1.4597783339292099) internal successors, (4083), 2797 states have internal predecessors, (4083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:16,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2798 states to 2798 states and 4083 transitions. [2024-12-02 11:09:16,526 INFO L78 Accepts]: Start accepts. Automaton has 2798 states and 4083 transitions. Word has length 118 [2024-12-02 11:09:16,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:09:16,527 INFO L471 AbstractCegarLoop]: Abstraction has 2798 states and 4083 transitions. [2024-12-02 11:09:16,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.076923076923077) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:16,527 INFO L276 IsEmpty]: Start isEmpty. Operand 2798 states and 4083 transitions. [2024-12-02 11:09:16,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 11:09:16,528 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:09:16,528 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:09:16,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 11:09:16,528 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:09:16,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:09:16,529 INFO L85 PathProgramCache]: Analyzing trace with hash 461834997, now seen corresponding path program 1 times [2024-12-02 11:09:16,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:09:16,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135226888] [2024-12-02 11:09:16,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:09:16,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:09:16,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:09:17,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:09:17,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:09:17,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135226888] [2024-12-02 11:09:17,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135226888] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:09:17,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:09:17,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 11:09:17,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333347579] [2024-12-02 11:09:17,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:09:17,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 11:09:17,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:09:17,070 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 11:09:17,070 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-12-02 11:09:17,070 INFO L87 Difference]: Start difference. First operand 2798 states and 4083 transitions. Second operand has 14 states, 14 states have (on average 8.5) internal successors, (119), 13 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:17,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:09:17,816 INFO L93 Difference]: Finished difference Result 8299 states and 12101 transitions. [2024-12-02 11:09:17,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 11:09:17,817 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.5) internal successors, (119), 13 states have internal predecessors, (119), 0 states have call successors, (0), 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 11:09:17,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:09:17,827 INFO L225 Difference]: With dead ends: 8299 [2024-12-02 11:09:17,827 INFO L226 Difference]: Without dead ends: 5721 [2024-12-02 11:09:17,830 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=169, Invalid=533, Unknown=0, NotChecked=0, Total=702 [2024-12-02 11:09:17,831 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 1400 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 835 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1400 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 11:09:17,831 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1400 Valid, 854 Invalid, 851 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 835 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 11:09:17,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5721 states. [2024-12-02 11:09:17,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5721 to 2911. [2024-12-02 11:09:17,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2911 states, 2910 states have (on average 1.4601374570446735) internal successors, (4249), 2910 states have internal predecessors, (4249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:17,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2911 states to 2911 states and 4249 transitions. [2024-12-02 11:09:17,890 INFO L78 Accepts]: Start accepts. Automaton has 2911 states and 4249 transitions. Word has length 119 [2024-12-02 11:09:17,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:09:17,890 INFO L471 AbstractCegarLoop]: Abstraction has 2911 states and 4249 transitions. [2024-12-02 11:09:17,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.5) internal successors, (119), 13 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:17,890 INFO L276 IsEmpty]: Start isEmpty. Operand 2911 states and 4249 transitions. [2024-12-02 11:09:17,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 11:09:17,891 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:09:17,892 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:09:17,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 11:09:17,892 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:09:17,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:09:17,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1766543503, now seen corresponding path program 1 times [2024-12-02 11:09:17,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:09:17,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301787763] [2024-12-02 11:09:17,893 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:09:17,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:09:17,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:09:18,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:09:18,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:09:18,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301787763] [2024-12-02 11:09:18,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301787763] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:09:18,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:09:18,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 11:09:18,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924045562] [2024-12-02 11:09:18,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:09:18,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 11:09:18,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:09:18,377 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 11:09:18,378 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-12-02 11:09:18,378 INFO L87 Difference]: Start difference. First operand 2911 states and 4249 transitions. Second operand has 13 states, 13 states have (on average 9.153846153846153) internal successors, (119), 12 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:19,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:09:19,076 INFO L93 Difference]: Finished difference Result 8252 states and 12067 transitions. [2024-12-02 11:09:19,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 11:09:19,077 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.153846153846153) internal successors, (119), 12 states have internal predecessors, (119), 0 states have call successors, (0), 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 11:09:19,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:09:19,087 INFO L225 Difference]: With dead ends: 8252 [2024-12-02 11:09:19,088 INFO L226 Difference]: Without dead ends: 5643 [2024-12-02 11:09:19,090 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=146, Invalid=454, Unknown=0, NotChecked=0, Total=600 [2024-12-02 11:09:19,091 INFO L435 NwaCegarLoop]: 156 mSDtfsCounter, 1101 mSDsluCounter, 700 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1101 SdHoareTripleChecker+Valid, 856 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 11:09:19,091 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1101 Valid, 856 Invalid, 781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 11:09:19,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5643 states. [2024-12-02 11:09:19,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5643 to 2911. [2024-12-02 11:09:19,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2911 states, 2910 states have (on average 1.4556701030927834) internal successors, (4236), 2910 states have internal predecessors, (4236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:19,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2911 states to 2911 states and 4236 transitions. [2024-12-02 11:09:19,141 INFO L78 Accepts]: Start accepts. Automaton has 2911 states and 4236 transitions. Word has length 119 [2024-12-02 11:09:19,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:09:19,142 INFO L471 AbstractCegarLoop]: Abstraction has 2911 states and 4236 transitions. [2024-12-02 11:09:19,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.153846153846153) internal successors, (119), 12 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:19,142 INFO L276 IsEmpty]: Start isEmpty. Operand 2911 states and 4236 transitions. [2024-12-02 11:09:19,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-12-02 11:09:19,143 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:09:19,143 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:09:19,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 11:09:19,143 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:09:19,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:09:19,144 INFO L85 PathProgramCache]: Analyzing trace with hash 227387228, now seen corresponding path program 1 times [2024-12-02 11:09:19,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:09:19,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544453575] [2024-12-02 11:09:19,144 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:09:19,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:09:19,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:09:19,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:09:19,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:09:19,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544453575] [2024-12-02 11:09:19,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544453575] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:09:19,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:09:19,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 11:09:19,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774286064] [2024-12-02 11:09:19,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:09:19,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 11:09:19,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:09:19,464 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 11:09:19,464 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:09:19,464 INFO L87 Difference]: Start difference. First operand 2911 states and 4236 transitions. Second operand has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 8 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:19,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:09:19,840 INFO L93 Difference]: Finished difference Result 8248 states and 12081 transitions. [2024-12-02 11:09:19,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:09:19,841 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 8 states have internal predecessors, (120), 0 states have call successors, (0), 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 11:09:19,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:09:19,850 INFO L225 Difference]: With dead ends: 8248 [2024-12-02 11:09:19,850 INFO L226 Difference]: Without dead ends: 5489 [2024-12-02 11:09:19,853 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-12-02 11:09:19,854 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 1040 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1040 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:09:19,854 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1040 Valid, 640 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 11:09:19,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5489 states. [2024-12-02 11:09:19,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5489 to 2911. [2024-12-02 11:09:19,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2911 states, 2910 states have (on average 1.4553264604810996) internal successors, (4235), 2910 states have internal predecessors, (4235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:19,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2911 states to 2911 states and 4235 transitions. [2024-12-02 11:09:19,909 INFO L78 Accepts]: Start accepts. Automaton has 2911 states and 4235 transitions. Word has length 120 [2024-12-02 11:09:19,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:09:19,910 INFO L471 AbstractCegarLoop]: Abstraction has 2911 states and 4235 transitions. [2024-12-02 11:09:19,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 8 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:19,910 INFO L276 IsEmpty]: Start isEmpty. Operand 2911 states and 4235 transitions. [2024-12-02 11:09:19,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 11:09:19,911 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:09:19,911 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:09:19,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 11:09:19,911 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:09:19,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:09:19,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1749409920, now seen corresponding path program 1 times [2024-12-02 11:09:19,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:09:19,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932177893] [2024-12-02 11:09:19,912 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:09:19,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:09:19,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:09:20,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:09:20,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:09:20,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932177893] [2024-12-02 11:09:20,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932177893] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:09:20,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:09:20,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 11:09:20,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610307827] [2024-12-02 11:09:20,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:09:20,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 11:09:20,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:09:20,231 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 11:09:20,231 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-12-02 11:09:20,231 INFO L87 Difference]: Start difference. First operand 2911 states and 4235 transitions. Second operand has 10 states, 10 states have (on average 12.1) internal successors, (121), 9 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:20,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:09:20,716 INFO L93 Difference]: Finished difference Result 8388 states and 12248 transitions. [2024-12-02 11:09:20,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 11:09:20,717 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.1) internal successors, (121), 9 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2024-12-02 11:09:20,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:09:20,725 INFO L225 Difference]: With dead ends: 8388 [2024-12-02 11:09:20,725 INFO L226 Difference]: Without dead ends: 5649 [2024-12-02 11:09:20,728 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-12-02 11:09:20,729 INFO L435 NwaCegarLoop]: 200 mSDtfsCounter, 1115 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 849 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1115 SdHoareTripleChecker+Valid, 980 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 849 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:09:20,730 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1115 Valid, 980 Invalid, 855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 849 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 11:09:20,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5649 states. [2024-12-02 11:09:20,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5649 to 2911. [2024-12-02 11:09:20,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2911 states, 2910 states have (on average 1.4532646048109965) internal successors, (4229), 2910 states have internal predecessors, (4229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:20,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2911 states to 2911 states and 4229 transitions. [2024-12-02 11:09:20,779 INFO L78 Accepts]: Start accepts. Automaton has 2911 states and 4229 transitions. Word has length 121 [2024-12-02 11:09:20,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:09:20,779 INFO L471 AbstractCegarLoop]: Abstraction has 2911 states and 4229 transitions. [2024-12-02 11:09:20,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.1) internal successors, (121), 9 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:20,779 INFO L276 IsEmpty]: Start isEmpty. Operand 2911 states and 4229 transitions. [2024-12-02 11:09:20,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-12-02 11:09:20,780 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:09:20,780 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:09:20,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 11:09:20,780 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:09:20,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:09:20,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1795722265, now seen corresponding path program 1 times [2024-12-02 11:09:20,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:09:20,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432305115] [2024-12-02 11:09:20,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:09:20,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:09:20,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:09:21,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:09:21,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:09:21,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432305115] [2024-12-02 11:09:21,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432305115] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:09:21,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:09:21,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 11:09:21,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695978015] [2024-12-02 11:09:21,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:09:21,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 11:09:21,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:09:21,161 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 11:09:21,161 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 11:09:21,161 INFO L87 Difference]: Start difference. First operand 2911 states and 4229 transitions. Second operand has 10 states, 10 states have (on average 12.2) internal successors, (122), 9 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:21,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:09:21,652 INFO L93 Difference]: Finished difference Result 8427 states and 12287 transitions. [2024-12-02 11:09:21,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 11:09:21,652 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.2) internal successors, (122), 9 states have internal predecessors, (122), 0 states have call successors, (0), 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 11:09:21,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:09:21,657 INFO L225 Difference]: With dead ends: 8427 [2024-12-02 11:09:21,657 INFO L226 Difference]: Without dead ends: 5718 [2024-12-02 11:09:21,660 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2024-12-02 11:09:21,660 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 1326 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1326 SdHoareTripleChecker+Valid, 803 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:09:21,660 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1326 Valid, 803 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 11:09:21,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5718 states. [2024-12-02 11:09:21,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5718 to 2911. [2024-12-02 11:09:21,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2911 states, 2910 states have (on average 1.4501718213058419) internal successors, (4220), 2910 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:21,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2911 states to 2911 states and 4220 transitions. [2024-12-02 11:09:21,709 INFO L78 Accepts]: Start accepts. Automaton has 2911 states and 4220 transitions. Word has length 122 [2024-12-02 11:09:21,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:09:21,709 INFO L471 AbstractCegarLoop]: Abstraction has 2911 states and 4220 transitions. [2024-12-02 11:09:21,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.2) internal successors, (122), 9 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:21,709 INFO L276 IsEmpty]: Start isEmpty. Operand 2911 states and 4220 transitions. [2024-12-02 11:09:21,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 11:09:21,710 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:09:21,710 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:09:21,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 11:09:21,710 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:09:21,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:09:21,711 INFO L85 PathProgramCache]: Analyzing trace with hash -141489226, now seen corresponding path program 1 times [2024-12-02 11:09:21,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:09:21,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33962275] [2024-12-02 11:09:21,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:09:21,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:09:21,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:09:22,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:09:22,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:09:22,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33962275] [2024-12-02 11:09:22,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33962275] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:09:22,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:09:22,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 11:09:22,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689804444] [2024-12-02 11:09:22,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:09:22,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 11:09:22,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:09:22,316 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 11:09:22,316 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-12-02 11:09:22,316 INFO L87 Difference]: Start difference. First operand 2911 states and 4220 transitions. Second operand has 13 states, 13 states have (on average 9.461538461538462) internal successors, (123), 12 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:23,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:09:23,329 INFO L93 Difference]: Finished difference Result 14623 states and 21238 transitions. [2024-12-02 11:09:23,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-02 11:09:23,330 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.461538461538462) internal successors, (123), 12 states have internal predecessors, (123), 0 states have call successors, (0), 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 123 [2024-12-02 11:09:23,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:09:23,338 INFO L225 Difference]: With dead ends: 14623 [2024-12-02 11:09:23,338 INFO L226 Difference]: Without dead ends: 12045 [2024-12-02 11:09:23,341 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=246, Invalid=746, Unknown=0, NotChecked=0, Total=992 [2024-12-02 11:09:23,342 INFO L435 NwaCegarLoop]: 200 mSDtfsCounter, 2397 mSDsluCounter, 1082 mSDsCounter, 0 mSdLazyCounter, 1149 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2397 SdHoareTripleChecker+Valid, 1282 SdHoareTripleChecker+Invalid, 1178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 11:09:23,342 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2397 Valid, 1282 Invalid, 1178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1149 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 11:09:23,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12045 states. [2024-12-02 11:09:23,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12045 to 2914. [2024-12-02 11:09:23,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2914 states, 2913 states have (on average 1.4500514933058701) internal successors, (4224), 2913 states have internal predecessors, (4224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:23,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2914 states to 2914 states and 4224 transitions. [2024-12-02 11:09:23,406 INFO L78 Accepts]: Start accepts. Automaton has 2914 states and 4224 transitions. Word has length 123 [2024-12-02 11:09:23,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:09:23,406 INFO L471 AbstractCegarLoop]: Abstraction has 2914 states and 4224 transitions. [2024-12-02 11:09:23,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.461538461538462) internal successors, (123), 12 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:23,406 INFO L276 IsEmpty]: Start isEmpty. Operand 2914 states and 4224 transitions. [2024-12-02 11:09:23,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 11:09:23,407 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:09:23,407 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:09:23,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 11:09:23,408 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:09:23,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:09:23,408 INFO L85 PathProgramCache]: Analyzing trace with hash -297884253, now seen corresponding path program 1 times [2024-12-02 11:09:23,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:09:23,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538908333] [2024-12-02 11:09:23,408 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:09:23,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:09:23,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:09:23,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:09:23,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:09:23,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538908333] [2024-12-02 11:09:23,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538908333] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:09:23,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:09:23,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 11:09:23,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952554703] [2024-12-02 11:09:23,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:09:23,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 11:09:23,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:09:23,711 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 11:09:23,711 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-12-02 11:09:23,711 INFO L87 Difference]: Start difference. First operand 2914 states and 4224 transitions. Second operand has 10 states, 10 states have (on average 12.3) internal successors, (123), 9 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:24,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:09:24,282 INFO L93 Difference]: Finished difference Result 8290 states and 12083 transitions. [2024-12-02 11:09:24,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 11:09:24,282 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.3) internal successors, (123), 9 states have internal predecessors, (123), 0 states have call successors, (0), 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 123 [2024-12-02 11:09:24,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:09:24,285 INFO L225 Difference]: With dead ends: 8290 [2024-12-02 11:09:24,285 INFO L226 Difference]: Without dead ends: 5599 [2024-12-02 11:09:24,287 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-12-02 11:09:24,287 INFO L435 NwaCegarLoop]: 224 mSDtfsCounter, 547 mSDsluCounter, 875 mSDsCounter, 0 mSdLazyCounter, 963 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 547 SdHoareTripleChecker+Valid, 1099 SdHoareTripleChecker+Invalid, 968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 11:09:24,287 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [547 Valid, 1099 Invalid, 968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 963 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 11:09:24,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5599 states. [2024-12-02 11:09:24,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5599 to 2829. [2024-12-02 11:09:24,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2829 states, 2828 states have (on average 1.450848656294201) internal successors, (4103), 2828 states have internal predecessors, (4103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:24,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2829 states to 2829 states and 4103 transitions. [2024-12-02 11:09:24,316 INFO L78 Accepts]: Start accepts. Automaton has 2829 states and 4103 transitions. Word has length 123 [2024-12-02 11:09:24,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:09:24,316 INFO L471 AbstractCegarLoop]: Abstraction has 2829 states and 4103 transitions. [2024-12-02 11:09:24,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.3) internal successors, (123), 9 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:24,316 INFO L276 IsEmpty]: Start isEmpty. Operand 2829 states and 4103 transitions. [2024-12-02 11:09:24,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 11:09:24,316 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:09:24,316 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:09:24,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 11:09:24,317 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:09:24,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:09:24,317 INFO L85 PathProgramCache]: Analyzing trace with hash 182258086, now seen corresponding path program 1 times [2024-12-02 11:09:24,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:09:24,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778198571] [2024-12-02 11:09:24,317 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:09:24,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:09:24,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:09:24,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:09:24,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:09:24,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778198571] [2024-12-02 11:09:24,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778198571] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:09:24,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:09:24,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 11:09:24,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537904761] [2024-12-02 11:09:24,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:09:24,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 11:09:24,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:09:24,565 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 11:09:24,565 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 11:09:24,565 INFO L87 Difference]: Start difference. First operand 2829 states and 4103 transitions. Second operand has 10 states, 10 states have (on average 12.4) internal successors, (124), 9 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:25,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:09:25,099 INFO L93 Difference]: Finished difference Result 8153 states and 11889 transitions. [2024-12-02 11:09:25,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 11:09:25,100 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.4) internal successors, (124), 9 states have internal predecessors, (124), 0 states have call successors, (0), 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 11:09:25,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:09:25,103 INFO L225 Difference]: With dead ends: 8153 [2024-12-02 11:09:25,103 INFO L226 Difference]: Without dead ends: 5575 [2024-12-02 11:09:25,105 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2024-12-02 11:09:25,106 INFO L435 NwaCegarLoop]: 204 mSDtfsCounter, 1039 mSDsluCounter, 798 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1039 SdHoareTripleChecker+Valid, 1002 SdHoareTripleChecker+Invalid, 895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 11:09:25,106 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1039 Valid, 1002 Invalid, 895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 888 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 11:09:25,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5575 states. [2024-12-02 11:09:25,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5575 to 2822. [2024-12-02 11:09:25,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2822 states, 2821 states have (on average 1.4519673874512584) internal successors, (4096), 2821 states have internal predecessors, (4096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:25,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2822 states to 2822 states and 4096 transitions. [2024-12-02 11:09:25,170 INFO L78 Accepts]: Start accepts. Automaton has 2822 states and 4096 transitions. Word has length 124 [2024-12-02 11:09:25,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:09:25,171 INFO L471 AbstractCegarLoop]: Abstraction has 2822 states and 4096 transitions. [2024-12-02 11:09:25,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.4) internal successors, (124), 9 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:25,171 INFO L276 IsEmpty]: Start isEmpty. Operand 2822 states and 4096 transitions. [2024-12-02 11:09:25,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 11:09:25,172 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:09:25,172 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:09:25,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 11:09:25,172 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:09:25,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:09:25,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1094727144, now seen corresponding path program 1 times [2024-12-02 11:09:25,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:09:25,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476339353] [2024-12-02 11:09:25,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:09:25,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:09:25,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:09:25,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:09:25,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:09:25,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476339353] [2024-12-02 11:09:25,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476339353] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:09:25,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:09:25,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 11:09:25,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692225727] [2024-12-02 11:09:25,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:09:25,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 11:09:25,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:09:25,970 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 11:09:25,971 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-12-02 11:09:25,971 INFO L87 Difference]: Start difference. First operand 2822 states and 4096 transitions. Second operand has 14 states, 14 states have (on average 8.857142857142858) internal successors, (124), 14 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:26,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:09:26,742 INFO L93 Difference]: Finished difference Result 11354 states and 16627 transitions. [2024-12-02 11:09:26,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 11:09:26,743 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.857142857142858) internal successors, (124), 14 states have internal predecessors, (124), 0 states have call successors, (0), 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 11:09:26,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:09:26,748 INFO L225 Difference]: With dead ends: 11354 [2024-12-02 11:09:26,748 INFO L226 Difference]: Without dead ends: 10728 [2024-12-02 11:09:26,750 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-12-02 11:09:26,750 INFO L435 NwaCegarLoop]: 580 mSDtfsCounter, 893 mSDsluCounter, 3951 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 893 SdHoareTripleChecker+Valid, 4531 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:09:26,751 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [893 Valid, 4531 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 11:09:26,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10728 states. [2024-12-02 11:09:26,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10728 to 2813. [2024-12-02 11:09:26,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2813 states, 2812 states have (on average 1.4502133712660028) internal successors, (4078), 2812 states have internal predecessors, (4078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:26,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2813 states to 2813 states and 4078 transitions. [2024-12-02 11:09:26,810 INFO L78 Accepts]: Start accepts. Automaton has 2813 states and 4078 transitions. Word has length 124 [2024-12-02 11:09:26,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:09:26,810 INFO L471 AbstractCegarLoop]: Abstraction has 2813 states and 4078 transitions. [2024-12-02 11:09:26,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.857142857142858) internal successors, (124), 14 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:26,811 INFO L276 IsEmpty]: Start isEmpty. Operand 2813 states and 4078 transitions. [2024-12-02 11:09:26,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 11:09:26,811 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:09:26,811 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:09:26,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 11:09:26,812 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:09:26,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:09:26,812 INFO L85 PathProgramCache]: Analyzing trace with hash 2075808265, now seen corresponding path program 1 times [2024-12-02 11:09:26,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:09:26,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436540496] [2024-12-02 11:09:26,812 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:09:26,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:09:26,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:09:27,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:09:27,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:09:27,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436540496] [2024-12-02 11:09:27,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436540496] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:09:27,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:09:27,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-12-02 11:09:27,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548221860] [2024-12-02 11:09:27,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:09:27,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 11:09:27,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:09:27,767 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 11:09:27,767 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2024-12-02 11:09:27,767 INFO L87 Difference]: Start difference. First operand 2813 states and 4078 transitions. Second operand has 19 states, 19 states have (on average 6.526315789473684) internal successors, (124), 19 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:29,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:09:29,315 INFO L93 Difference]: Finished difference Result 8808 states and 12864 transitions. [2024-12-02 11:09:29,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-12-02 11:09:29,315 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.526315789473684) internal successors, (124), 19 states have internal predecessors, (124), 0 states have call successors, (0), 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 11:09:29,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:09:29,320 INFO L225 Difference]: With dead ends: 8808 [2024-12-02 11:09:29,321 INFO L226 Difference]: Without dead ends: 8172 [2024-12-02 11:09:29,323 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=304, Invalid=1178, Unknown=0, NotChecked=0, Total=1482 [2024-12-02 11:09:29,323 INFO L435 NwaCegarLoop]: 459 mSDtfsCounter, 1322 mSDsluCounter, 4025 mSDsCounter, 0 mSdLazyCounter, 1114 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1322 SdHoareTripleChecker+Valid, 4484 SdHoareTripleChecker+Invalid, 1120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 11:09:29,323 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1322 Valid, 4484 Invalid, 1120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1114 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 11:09:29,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8172 states. [2024-12-02 11:09:29,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8172 to 2818. [2024-12-02 11:09:29,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2818 states, 2817 states have (on average 1.4487042953496627) internal successors, (4081), 2817 states have internal predecessors, (4081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:29,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2818 states to 2818 states and 4081 transitions. [2024-12-02 11:09:29,374 INFO L78 Accepts]: Start accepts. Automaton has 2818 states and 4081 transitions. Word has length 124 [2024-12-02 11:09:29,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:09:29,374 INFO L471 AbstractCegarLoop]: Abstraction has 2818 states and 4081 transitions. [2024-12-02 11:09:29,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.526315789473684) internal successors, (124), 19 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:29,374 INFO L276 IsEmpty]: Start isEmpty. Operand 2818 states and 4081 transitions. [2024-12-02 11:09:29,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 11:09:29,374 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:09:29,374 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:09:29,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 11:09:29,375 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:09:29,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:09:29,375 INFO L85 PathProgramCache]: Analyzing trace with hash 72988073, now seen corresponding path program 1 times [2024-12-02 11:09:29,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:09:29,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46625761] [2024-12-02 11:09:29,375 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:09:29,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:09:29,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:09:30,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:09:30,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:09:30,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46625761] [2024-12-02 11:09:30,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46625761] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:09:30,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:09:30,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 11:09:30,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547238540] [2024-12-02 11:09:30,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:09:30,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 11:09:30,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:09:30,064 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 11:09:30,064 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-12-02 11:09:30,064 INFO L87 Difference]: Start difference. First operand 2818 states and 4081 transitions. Second operand has 14 states, 14 states have (on average 8.857142857142858) internal successors, (124), 14 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:30,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:09:30,860 INFO L93 Difference]: Finished difference Result 11275 states and 16518 transitions. [2024-12-02 11:09:30,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 11:09:30,860 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.857142857142858) internal successors, (124), 14 states have internal predecessors, (124), 0 states have call successors, (0), 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 11:09:30,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:09:30,868 INFO L225 Difference]: With dead ends: 11275 [2024-12-02 11:09:30,868 INFO L226 Difference]: Without dead ends: 10667 [2024-12-02 11:09:30,870 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-12-02 11:09:30,871 INFO L435 NwaCegarLoop]: 337 mSDtfsCounter, 1387 mSDsluCounter, 2263 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1387 SdHoareTripleChecker+Valid, 2600 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:09:30,871 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1387 Valid, 2600 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 11:09:30,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10667 states. [2024-12-02 11:09:30,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10667 to 2832. [2024-12-02 11:09:30,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2832 states, 2831 states have (on average 1.4489579653832567) internal successors, (4102), 2831 states have internal predecessors, (4102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:30,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2832 states to 2832 states and 4102 transitions. [2024-12-02 11:09:30,933 INFO L78 Accepts]: Start accepts. Automaton has 2832 states and 4102 transitions. Word has length 124 [2024-12-02 11:09:30,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:09:30,934 INFO L471 AbstractCegarLoop]: Abstraction has 2832 states and 4102 transitions. [2024-12-02 11:09:30,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.857142857142858) internal successors, (124), 14 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:30,934 INFO L276 IsEmpty]: Start isEmpty. Operand 2832 states and 4102 transitions. [2024-12-02 11:09:30,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 11:09:30,935 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:09:30,935 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:09:30,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-02 11:09:30,935 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:09:30,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:09:30,936 INFO L85 PathProgramCache]: Analyzing trace with hash 804653832, now seen corresponding path program 1 times [2024-12-02 11:09:30,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:09:30,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166934394] [2024-12-02 11:09:30,936 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:09:30,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:09:30,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:09:31,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:09:31,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:09:31,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166934394] [2024-12-02 11:09:31,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166934394] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:09:31,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:09:31,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 11:09:31,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405863855] [2024-12-02 11:09:31,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:09:31,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 11:09:31,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:09:31,675 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 11:09:31,675 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-12-02 11:09:31,676 INFO L87 Difference]: Start difference. First operand 2832 states and 4102 transitions. Second operand has 14 states, 14 states have (on average 8.857142857142858) internal successors, (124), 14 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:32,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:09:32,351 INFO L93 Difference]: Finished difference Result 11420 states and 16704 transitions. [2024-12-02 11:09:32,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 11:09:32,351 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.857142857142858) internal successors, (124), 14 states have internal predecessors, (124), 0 states have call successors, (0), 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 11:09:32,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:09:32,357 INFO L225 Difference]: With dead ends: 11420 [2024-12-02 11:09:32,357 INFO L226 Difference]: Without dead ends: 10780 [2024-12-02 11:09:32,359 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-12-02 11:09:32,359 INFO L435 NwaCegarLoop]: 413 mSDtfsCounter, 1198 mSDsluCounter, 3784 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1198 SdHoareTripleChecker+Valid, 4197 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:09:32,359 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1198 Valid, 4197 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 11:09:32,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10780 states. [2024-12-02 11:09:32,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10780 to 2815. [2024-12-02 11:09:32,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2815 states, 2814 states have (on average 1.4484719260838663) internal successors, (4076), 2814 states have internal predecessors, (4076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:32,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2815 states to 2815 states and 4076 transitions. [2024-12-02 11:09:32,414 INFO L78 Accepts]: Start accepts. Automaton has 2815 states and 4076 transitions. Word has length 124 [2024-12-02 11:09:32,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:09:32,414 INFO L471 AbstractCegarLoop]: Abstraction has 2815 states and 4076 transitions. [2024-12-02 11:09:32,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.857142857142858) internal successors, (124), 14 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:32,414 INFO L276 IsEmpty]: Start isEmpty. Operand 2815 states and 4076 transitions. [2024-12-02 11:09:32,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 11:09:32,415 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:09:32,415 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:09:32,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-12-02 11:09:32,415 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:09:32,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:09:32,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1156698250, now seen corresponding path program 1 times [2024-12-02 11:09:32,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:09:32,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086508228] [2024-12-02 11:09:32,416 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:09:32,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:09:32,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:09:33,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:09:33,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:09:33,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086508228] [2024-12-02 11:09:33,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086508228] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:09:33,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:09:33,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 11:09:33,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267025041] [2024-12-02 11:09:33,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:09:33,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 11:09:33,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:09:33,013 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 11:09:33,013 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-12-02 11:09:33,013 INFO L87 Difference]: Start difference. First operand 2815 states and 4076 transitions. Second operand has 13 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:33,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:09:33,526 INFO L93 Difference]: Finished difference Result 6086 states and 8874 transitions. [2024-12-02 11:09:33,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 11:09:33,527 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 states have internal predecessors, (124), 0 states have call successors, (0), 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 11:09:33,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:09:33,530 INFO L225 Difference]: With dead ends: 6086 [2024-12-02 11:09:33,530 INFO L226 Difference]: Without dead ends: 5422 [2024-12-02 11:09:33,531 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-12-02 11:09:33,531 INFO L435 NwaCegarLoop]: 261 mSDtfsCounter, 1308 mSDsluCounter, 1543 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1308 SdHoareTripleChecker+Valid, 1804 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:09:33,532 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1308 Valid, 1804 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:09:33,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5422 states. [2024-12-02 11:09:33,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5422 to 2780. [2024-12-02 11:09:33,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2780 states, 2779 states have (on average 1.4494422454120186) internal successors, (4028), 2779 states have internal predecessors, (4028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:33,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2780 states to 2780 states and 4028 transitions. [2024-12-02 11:09:33,562 INFO L78 Accepts]: Start accepts. Automaton has 2780 states and 4028 transitions. Word has length 124 [2024-12-02 11:09:33,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:09:33,562 INFO L471 AbstractCegarLoop]: Abstraction has 2780 states and 4028 transitions. [2024-12-02 11:09:33,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:33,563 INFO L276 IsEmpty]: Start isEmpty. Operand 2780 states and 4028 transitions. [2024-12-02 11:09:33,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 11:09:33,563 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:09:33,563 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:09:33,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-12-02 11:09:33,563 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:09:33,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:09:33,564 INFO L85 PathProgramCache]: Analyzing trace with hash 115656331, now seen corresponding path program 1 times [2024-12-02 11:09:33,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:09:33,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664226405] [2024-12-02 11:09:33,564 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:09:33,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:09:33,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:09:34,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:09:34,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:09:34,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664226405] [2024-12-02 11:09:34,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664226405] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:09:34,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:09:34,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 11:09:34,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202451948] [2024-12-02 11:09:34,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:09:34,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 11:09:34,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:09:34,160 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 11:09:34,160 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-12-02 11:09:34,160 INFO L87 Difference]: Start difference. First operand 2780 states and 4028 transitions. Second operand has 12 states, 12 states have (on average 10.333333333333334) internal successors, (124), 12 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:34,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:09:34,670 INFO L93 Difference]: Finished difference Result 11192 states and 16395 transitions. [2024-12-02 11:09:34,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 11:09:34,670 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.333333333333334) internal successors, (124), 12 states have internal predecessors, (124), 0 states have call successors, (0), 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 11:09:34,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:09:34,676 INFO L225 Difference]: With dead ends: 11192 [2024-12-02 11:09:34,676 INFO L226 Difference]: Without dead ends: 10532 [2024-12-02 11:09:34,679 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=135, Invalid=327, Unknown=0, NotChecked=0, Total=462 [2024-12-02 11:09:34,679 INFO L435 NwaCegarLoop]: 560 mSDtfsCounter, 1190 mSDsluCounter, 2173 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1190 SdHoareTripleChecker+Valid, 2733 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:09:34,679 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1190 Valid, 2733 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:09:34,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10532 states. [2024-12-02 11:09:34,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10532 to 2734. [2024-12-02 11:09:34,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2734 states, 2733 states have (on average 1.4522502744237102) internal successors, (3969), 2733 states have internal predecessors, (3969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:34,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2734 states to 2734 states and 3969 transitions. [2024-12-02 11:09:34,738 INFO L78 Accepts]: Start accepts. Automaton has 2734 states and 3969 transitions. Word has length 124 [2024-12-02 11:09:34,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:09:34,738 INFO L471 AbstractCegarLoop]: Abstraction has 2734 states and 3969 transitions. [2024-12-02 11:09:34,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.333333333333334) internal successors, (124), 12 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:34,738 INFO L276 IsEmpty]: Start isEmpty. Operand 2734 states and 3969 transitions. [2024-12-02 11:09:34,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 11:09:34,738 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:09:34,738 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:09:34,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-12-02 11:09:34,738 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:09:34,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:09:34,739 INFO L85 PathProgramCache]: Analyzing trace with hash 821814717, now seen corresponding path program 1 times [2024-12-02 11:09:34,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:09:34,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56030838] [2024-12-02 11:09:34,739 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:09:34,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:09:34,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:09:35,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:09:35,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:09:35,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56030838] [2024-12-02 11:09:35,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56030838] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:09:35,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:09:35,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 11:09:35,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711135193] [2024-12-02 11:09:35,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:09:35,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 11:09:35,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:09:35,246 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 11:09:35,246 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-12-02 11:09:35,246 INFO L87 Difference]: Start difference. First operand 2734 states and 3969 transitions. Second operand has 13 states, 13 states have (on average 9.615384615384615) internal successors, (125), 13 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 11:09:35,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:09:35,854 INFO L93 Difference]: Finished difference Result 5952 states and 8700 transitions. [2024-12-02 11:09:35,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 11:09:35,854 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.615384615384615) internal successors, (125), 13 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 11:09:35,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:09:35,858 INFO L225 Difference]: With dead ends: 5952 [2024-12-02 11:09:35,858 INFO L226 Difference]: Without dead ends: 5317 [2024-12-02 11:09:35,859 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-12-02 11:09:35,860 INFO L435 NwaCegarLoop]: 343 mSDtfsCounter, 899 mSDsluCounter, 2417 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 899 SdHoareTripleChecker+Valid, 2760 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:09:35,860 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [899 Valid, 2760 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:09:35,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5317 states. [2024-12-02 11:09:35,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5317 to 2707. [2024-12-02 11:09:35,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2707 states, 2706 states have (on average 1.4538063562453807) internal successors, (3934), 2706 states have internal predecessors, (3934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:35,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2707 states to 2707 states and 3934 transitions. [2024-12-02 11:09:35,907 INFO L78 Accepts]: Start accepts. Automaton has 2707 states and 3934 transitions. Word has length 125 [2024-12-02 11:09:35,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:09:35,908 INFO L471 AbstractCegarLoop]: Abstraction has 2707 states and 3934 transitions. [2024-12-02 11:09:35,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.615384615384615) internal successors, (125), 13 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 11:09:35,908 INFO L276 IsEmpty]: Start isEmpty. Operand 2707 states and 3934 transitions. [2024-12-02 11:09:35,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 11:09:35,908 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:09:35,908 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:09:35,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-12-02 11:09:35,909 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:09:35,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:09:35,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1380530944, now seen corresponding path program 1 times [2024-12-02 11:09:35,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:09:35,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744744241] [2024-12-02 11:09:35,909 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:09:35,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:09:35,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:09:39,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:09:39,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:09:39,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744744241] [2024-12-02 11:09:39,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744744241] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:09:39,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:09:39,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [45] imperfect sequences [] total 45 [2024-12-02 11:09:39,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476520293] [2024-12-02 11:09:39,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:09:39,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2024-12-02 11:09:39,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:09:39,904 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2024-12-02 11:09:39,904 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1872, Unknown=0, NotChecked=0, Total=1980 [2024-12-02 11:09:39,904 INFO L87 Difference]: Start difference. First operand 2707 states and 3934 transitions. Second operand has 45 states, 45 states have (on average 2.7777777777777777) internal successors, (125), 45 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 11:09:56,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:09:56,845 INFO L93 Difference]: Finished difference Result 21533 states and 31609 transitions. [2024-12-02 11:09:56,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-12-02 11:09:56,845 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 2.7777777777777777) internal successors, (125), 45 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 11:09:56,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:09:56,856 INFO L225 Difference]: With dead ends: 21533 [2024-12-02 11:09:56,856 INFO L226 Difference]: Without dead ends: 20925 [2024-12-02 11:09:56,860 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 985 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=911, Invalid=6229, Unknown=0, NotChecked=0, Total=7140 [2024-12-02 11:09:56,860 INFO L435 NwaCegarLoop]: 799 mSDtfsCounter, 2562 mSDsluCounter, 22665 mSDsCounter, 0 mSdLazyCounter, 15074 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2562 SdHoareTripleChecker+Valid, 23464 SdHoareTripleChecker+Invalid, 15091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 15074 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2024-12-02 11:09:56,860 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2562 Valid, 23464 Invalid, 15091 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 15074 Invalid, 0 Unknown, 0 Unchecked, 10.5s Time] [2024-12-02 11:09:56,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20925 states. [2024-12-02 11:09:56,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20925 to 2733. [2024-12-02 11:09:56,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2733 states, 2732 states have (on average 1.4520497803806736) internal successors, (3967), 2732 states have internal predecessors, (3967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:56,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2733 states to 2733 states and 3967 transitions. [2024-12-02 11:09:56,933 INFO L78 Accepts]: Start accepts. Automaton has 2733 states and 3967 transitions. Word has length 125 [2024-12-02 11:09:56,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:09:56,933 INFO L471 AbstractCegarLoop]: Abstraction has 2733 states and 3967 transitions. [2024-12-02 11:09:56,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 2.7777777777777777) internal successors, (125), 45 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 11:09:56,934 INFO L276 IsEmpty]: Start isEmpty. Operand 2733 states and 3967 transitions. [2024-12-02 11:09:56,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 11:09:56,934 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:09:56,934 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:09:56,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-12-02 11:09:56,934 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:09:56,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:09:56,934 INFO L85 PathProgramCache]: Analyzing trace with hash 826424512, now seen corresponding path program 1 times [2024-12-02 11:09:56,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:09:56,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322543925] [2024-12-02 11:09:56,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:09:56,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:09:56,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:09:57,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:09:57,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:09:57,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322543925] [2024-12-02 11:09:57,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322543925] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:09:57,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:09:57,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:09:57,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596786302] [2024-12-02 11:09:57,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:09:57,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:09:57,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:09:57,031 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:09:57,031 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:09:57,031 INFO L87 Difference]: Start difference. First operand 2733 states and 3967 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) 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 11:09:57,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:09:57,056 INFO L93 Difference]: Finished difference Result 7753 states and 11385 transitions. [2024-12-02 11:09:57,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:09:57,056 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) 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 11:09:57,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:09:57,059 INFO L225 Difference]: With dead ends: 7753 [2024-12-02 11:09:57,059 INFO L226 Difference]: Without dead ends: 5175 [2024-12-02 11:09:57,060 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:09:57,060 INFO L435 NwaCegarLoop]: 353 mSDtfsCounter, 125 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:09:57,060 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 547 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:09:57,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5175 states. [2024-12-02 11:09:57,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5175 to 5037. [2024-12-02 11:09:57,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5037 states, 5036 states have (on average 1.4525416997617155) internal successors, (7315), 5036 states have internal predecessors, (7315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:57,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5037 states to 5037 states and 7315 transitions. [2024-12-02 11:09:57,092 INFO L78 Accepts]: Start accepts. Automaton has 5037 states and 7315 transitions. Word has length 125 [2024-12-02 11:09:57,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:09:57,092 INFO L471 AbstractCegarLoop]: Abstraction has 5037 states and 7315 transitions. [2024-12-02 11:09:57,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) 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 11:09:57,092 INFO L276 IsEmpty]: Start isEmpty. Operand 5037 states and 7315 transitions. [2024-12-02 11:09:57,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 11:09:57,093 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:09:57,093 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:09:57,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-12-02 11:09:57,093 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:09:57,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:09:57,093 INFO L85 PathProgramCache]: Analyzing trace with hash -524465052, now seen corresponding path program 1 times [2024-12-02 11:09:57,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:09:57,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488819642] [2024-12-02 11:09:57,093 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:09:57,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:09:57,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:09:57,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:09:57,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:09:57,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488819642] [2024-12-02 11:09:57,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488819642] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:09:57,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:09:57,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:09:57,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064588415] [2024-12-02 11:09:57,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:09:57,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:09:57,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:09:57,286 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:09:57,286 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:09:57,286 INFO L87 Difference]: Start difference. First operand 5037 states and 7315 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 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 11:09:57,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:09:57,315 INFO L93 Difference]: Finished difference Result 5071 states and 7364 transitions. [2024-12-02 11:09:57,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:09:57,315 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 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 11:09:57,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:09:57,318 INFO L225 Difference]: With dead ends: 5071 [2024-12-02 11:09:57,318 INFO L226 Difference]: Without dead ends: 5069 [2024-12-02 11:09:57,319 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:09:57,319 INFO L435 NwaCegarLoop]: 243 mSDtfsCounter, 0 mSDsluCounter, 714 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 957 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:09:57,319 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 957 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:09:57,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5069 states. [2024-12-02 11:09:57,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5069 to 5069. [2024-12-02 11:09:57,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5069 states, 5068 states have (on average 1.4461325966850829) internal successors, (7329), 5068 states have internal predecessors, (7329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:57,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5069 states to 5069 states and 7329 transitions. [2024-12-02 11:09:57,354 INFO L78 Accepts]: Start accepts. Automaton has 5069 states and 7329 transitions. Word has length 125 [2024-12-02 11:09:57,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:09:57,354 INFO L471 AbstractCegarLoop]: Abstraction has 5069 states and 7329 transitions. [2024-12-02 11:09:57,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 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 11:09:57,354 INFO L276 IsEmpty]: Start isEmpty. Operand 5069 states and 7329 transitions. [2024-12-02 11:09:57,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 11:09:57,354 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:09:57,354 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:09:57,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-12-02 11:09:57,354 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:09:57,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:09:57,355 INFO L85 PathProgramCache]: Analyzing trace with hash 763218784, now seen corresponding path program 1 times [2024-12-02 11:09:57,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:09:57,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195239844] [2024-12-02 11:09:57,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:09:57,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:09:57,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:09:57,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:09:57,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:09:57,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195239844] [2024-12-02 11:09:57,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195239844] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:09:57,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:09:57,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:09:57,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402991422] [2024-12-02 11:09:57,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:09:57,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:09:57,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:09:57,466 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:09:57,466 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:09:57,466 INFO L87 Difference]: Start difference. First operand 5069 states and 7329 transitions. Second operand has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 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 11:09:57,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:09:57,500 INFO L93 Difference]: Finished difference Result 12071 states and 17536 transitions. [2024-12-02 11:09:57,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:09:57,500 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 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 11:09:57,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:09:57,504 INFO L225 Difference]: With dead ends: 12071 [2024-12-02 11:09:57,504 INFO L226 Difference]: Without dead ends: 7157 [2024-12-02 11:09:57,507 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:09:57,507 INFO L435 NwaCegarLoop]: 325 mSDtfsCounter, 115 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:09:57,507 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 584 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:09:57,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7157 states. [2024-12-02 11:09:57,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7157 to 7155. [2024-12-02 11:09:57,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7155 states, 7154 states have (on average 1.4439474419904947) internal successors, (10330), 7154 states have internal predecessors, (10330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:57,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7155 states to 7155 states and 10330 transitions. [2024-12-02 11:09:57,570 INFO L78 Accepts]: Start accepts. Automaton has 7155 states and 10330 transitions. Word has length 125 [2024-12-02 11:09:57,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:09:57,570 INFO L471 AbstractCegarLoop]: Abstraction has 7155 states and 10330 transitions. [2024-12-02 11:09:57,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 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 11:09:57,571 INFO L276 IsEmpty]: Start isEmpty. Operand 7155 states and 10330 transitions. [2024-12-02 11:09:57,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-12-02 11:09:57,571 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:09:57,571 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:09:57,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-12-02 11:09:57,571 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:09:57,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:09:57,572 INFO L85 PathProgramCache]: Analyzing trace with hash 855829807, now seen corresponding path program 1 times [2024-12-02 11:09:57,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:09:57,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987609245] [2024-12-02 11:09:57,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:09:57,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:09:57,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:09:58,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:09:58,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:09:58,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987609245] [2024-12-02 11:09:58,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987609245] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:09:58,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:09:58,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 11:09:58,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446483384] [2024-12-02 11:09:58,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:09:58,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 11:09:58,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:09:58,080 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 11:09:58,080 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-12-02 11:09:58,080 INFO L87 Difference]: Start difference. First operand 7155 states and 10330 transitions. Second operand has 13 states, 13 states have (on average 9.692307692307692) internal successors, (126), 13 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:58,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:09:58,711 INFO L93 Difference]: Finished difference Result 15880 states and 22995 transitions. [2024-12-02 11:09:58,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 11:09:58,711 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.692307692307692) internal successors, (126), 13 states have internal predecessors, (126), 0 states have call successors, (0), 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 126 [2024-12-02 11:09:58,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:09:58,719 INFO L225 Difference]: With dead ends: 15880 [2024-12-02 11:09:58,719 INFO L226 Difference]: Without dead ends: 14155 [2024-12-02 11:09:58,722 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-12-02 11:09:58,722 INFO L435 NwaCegarLoop]: 323 mSDtfsCounter, 852 mSDsluCounter, 2258 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 852 SdHoareTripleChecker+Valid, 2581 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:09:58,723 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [852 Valid, 2581 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:09:58,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14155 states. [2024-12-02 11:09:58,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14155 to 7123. [2024-12-02 11:09:58,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7123 states, 7122 states have (on average 1.4448188711036225) internal successors, (10290), 7122 states have internal predecessors, (10290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:58,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7123 states to 7123 states and 10290 transitions. [2024-12-02 11:09:58,808 INFO L78 Accepts]: Start accepts. Automaton has 7123 states and 10290 transitions. Word has length 126 [2024-12-02 11:09:58,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:09:58,808 INFO L471 AbstractCegarLoop]: Abstraction has 7123 states and 10290 transitions. [2024-12-02 11:09:58,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.692307692307692) internal successors, (126), 13 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:58,808 INFO L276 IsEmpty]: Start isEmpty. Operand 7123 states and 10290 transitions. [2024-12-02 11:09:58,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-12-02 11:09:58,810 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:09:58,810 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:09:58,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-12-02 11:09:58,810 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:09:58,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:09:58,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1992589041, now seen corresponding path program 1 times [2024-12-02 11:09:58,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:09:58,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565606894] [2024-12-02 11:09:58,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:09:58,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:09:58,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:09:58,916 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:09:58,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:09:58,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565606894] [2024-12-02 11:09:58,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565606894] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:09:58,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:09:58,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:09:58,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588249044] [2024-12-02 11:09:58,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:09:58,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:09:58,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:09:58,917 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:09:58,917 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:09:58,918 INFO L87 Difference]: Start difference. First operand 7123 states and 10290 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:58,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:09:58,950 INFO L93 Difference]: Finished difference Result 14789 states and 21409 transitions. [2024-12-02 11:09:58,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:09:58,951 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 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 161 [2024-12-02 11:09:58,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:09:58,956 INFO L225 Difference]: With dead ends: 14789 [2024-12-02 11:09:58,956 INFO L226 Difference]: Without dead ends: 9875 [2024-12-02 11:09:58,959 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:09:58,959 INFO L435 NwaCegarLoop]: 332 mSDtfsCounter, 109 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:09:58,959 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 536 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:09:58,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9875 states. [2024-12-02 11:09:59,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9875 to 9597. [2024-12-02 11:09:59,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9597 states, 9596 states have (on average 1.4417465610671112) internal successors, (13835), 9596 states have internal predecessors, (13835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:59,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9597 states to 9597 states and 13835 transitions. [2024-12-02 11:09:59,047 INFO L78 Accepts]: Start accepts. Automaton has 9597 states and 13835 transitions. Word has length 161 [2024-12-02 11:09:59,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:09:59,047 INFO L471 AbstractCegarLoop]: Abstraction has 9597 states and 13835 transitions. [2024-12-02 11:09:59,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:59,048 INFO L276 IsEmpty]: Start isEmpty. Operand 9597 states and 13835 transitions. [2024-12-02 11:09:59,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-12-02 11:09:59,048 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:09:59,049 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:09:59,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-12-02 11:09:59,049 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:09:59,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:09:59,049 INFO L85 PathProgramCache]: Analyzing trace with hash -577623344, now seen corresponding path program 1 times [2024-12-02 11:09:59,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:09:59,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827660281] [2024-12-02 11:09:59,049 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:09:59,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:09:59,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:09:59,192 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:09:59,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:09:59,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827660281] [2024-12-02 11:09:59,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827660281] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:09:59,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:09:59,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:09:59,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922404073] [2024-12-02 11:09:59,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:09:59,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:09:59,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:09:59,193 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:09:59,193 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:09:59,193 INFO L87 Difference]: Start difference. First operand 9597 states and 13835 transitions. Second operand has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 6 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:59,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:09:59,563 INFO L93 Difference]: Finished difference Result 40933 states and 59573 transitions. [2024-12-02 11:09:59,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:09:59,563 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 6 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 163 [2024-12-02 11:09:59,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:09:59,586 INFO L225 Difference]: With dead ends: 40933 [2024-12-02 11:09:59,586 INFO L226 Difference]: Without dead ends: 31469 [2024-12-02 11:09:59,595 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-12-02 11:09:59,595 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 1417 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1417 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:09:59,595 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1417 Valid, 486 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:09:59,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31469 states. [2024-12-02 11:09:59,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31469 to 20379. [2024-12-02 11:09:59,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20379 states, 20378 states have (on average 1.4416036902541958) internal successors, (29377), 20378 states have internal predecessors, (29377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:59,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20379 states to 20379 states and 29377 transitions. [2024-12-02 11:09:59,832 INFO L78 Accepts]: Start accepts. Automaton has 20379 states and 29377 transitions. Word has length 163 [2024-12-02 11:09:59,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:09:59,832 INFO L471 AbstractCegarLoop]: Abstraction has 20379 states and 29377 transitions. [2024-12-02 11:09:59,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 6 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:09:59,832 INFO L276 IsEmpty]: Start isEmpty. Operand 20379 states and 29377 transitions. [2024-12-02 11:09:59,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-12-02 11:09:59,833 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:09:59,833 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:09:59,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-12-02 11:09:59,833 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:09:59,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:09:59,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1124611644, now seen corresponding path program 1 times [2024-12-02 11:09:59,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:09:59,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033494934] [2024-12-02 11:09:59,834 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:09:59,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:09:59,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:09:59,982 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:09:59,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:09:59,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033494934] [2024-12-02 11:09:59,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033494934] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:09:59,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:09:59,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:09:59,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560425719] [2024-12-02 11:09:59,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:09:59,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:09:59,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:09:59,983 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:09:59,983 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:09:59,983 INFO L87 Difference]: Start difference. First operand 20379 states and 29377 transitions. Second operand has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 6 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:10:00,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:10:00,507 INFO L93 Difference]: Finished difference Result 80407 states and 116627 transitions. [2024-12-02 11:10:00,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:10:00,508 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 6 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 163 [2024-12-02 11:10:00,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:10:00,563 INFO L225 Difference]: With dead ends: 80407 [2024-12-02 11:10:00,563 INFO L226 Difference]: Without dead ends: 60161 [2024-12-02 11:10:00,581 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-12-02 11:10:00,582 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 1332 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1332 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:10:00,582 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1332 Valid, 484 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 11:10:00,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60161 states. [2024-12-02 11:10:01,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60161 to 43263. [2024-12-02 11:10:01,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43263 states, 43262 states have (on average 1.4402709074938744) internal successors, (62309), 43262 states have internal predecessors, (62309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:10:01,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43263 states to 43263 states and 62309 transitions. [2024-12-02 11:10:01,078 INFO L78 Accepts]: Start accepts. Automaton has 43263 states and 62309 transitions. Word has length 163 [2024-12-02 11:10:01,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:10:01,078 INFO L471 AbstractCegarLoop]: Abstraction has 43263 states and 62309 transitions. [2024-12-02 11:10:01,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 6 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:10:01,078 INFO L276 IsEmpty]: Start isEmpty. Operand 43263 states and 62309 transitions. [2024-12-02 11:10:01,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-12-02 11:10:01,079 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:10:01,079 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:10:01,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-12-02 11:10:01,079 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:10:01,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:10:01,080 INFO L85 PathProgramCache]: Analyzing trace with hash -960554568, now seen corresponding path program 1 times [2024-12-02 11:10:01,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:10:01,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733417893] [2024-12-02 11:10:01,080 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:10:01,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:10:01,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:10:01,207 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:10:01,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:10:01,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733417893] [2024-12-02 11:10:01,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733417893] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:10:01,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:10:01,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:10:01,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255329619] [2024-12-02 11:10:01,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:10:01,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:10:01,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:10:01,208 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:10:01,208 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:10:01,208 INFO L87 Difference]: Start difference. First operand 43263 states and 62309 transitions. Second operand has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 6 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:10:01,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:10:01,767 INFO L93 Difference]: Finished difference Result 158035 states and 228359 transitions. [2024-12-02 11:10:01,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:10:01,767 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 6 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 163 [2024-12-02 11:10:01,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:10:01,846 INFO L225 Difference]: With dead ends: 158035 [2024-12-02 11:10:01,846 INFO L226 Difference]: Without dead ends: 114905 [2024-12-02 11:10:01,872 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-12-02 11:10:01,872 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 1247 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1247 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:10:01,872 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1247 Valid, 482 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:10:01,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114905 states. [2024-12-02 11:10:02,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114905 to 91671. [2024-12-02 11:10:02,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91671 states, 91670 states have (on average 1.4385185993236609) internal successors, (131869), 91670 states have internal predecessors, (131869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:10:03,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91671 states to 91671 states and 131869 transitions. [2024-12-02 11:10:03,041 INFO L78 Accepts]: Start accepts. Automaton has 91671 states and 131869 transitions. Word has length 163 [2024-12-02 11:10:03,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:10:03,041 INFO L471 AbstractCegarLoop]: Abstraction has 91671 states and 131869 transitions. [2024-12-02 11:10:03,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 6 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:10:03,041 INFO L276 IsEmpty]: Start isEmpty. Operand 91671 states and 131869 transitions. [2024-12-02 11:10:03,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-12-02 11:10:03,042 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:10:03,042 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:10:03,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-12-02 11:10:03,043 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:10:03,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:10:03,043 INFO L85 PathProgramCache]: Analyzing trace with hash 821175401, now seen corresponding path program 1 times [2024-12-02 11:10:03,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:10:03,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371232105] [2024-12-02 11:10:03,044 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:10:03,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:10:03,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:10:03,191 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:10:03,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:10:03,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371232105] [2024-12-02 11:10:03,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371232105] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:10:03,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:10:03,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:10:03,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830827032] [2024-12-02 11:10:03,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:10:03,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:10:03,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:10:03,193 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:10:03,193 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:10:03,193 INFO L87 Difference]: Start difference. First operand 91671 states and 131869 transitions. Second operand has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 6 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:10:04,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:10:04,112 INFO L93 Difference]: Finished difference Result 310651 states and 447071 transitions. [2024-12-02 11:10:04,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:10:04,112 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 6 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 163 [2024-12-02 11:10:04,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:10:04,312 INFO L225 Difference]: With dead ends: 310651 [2024-12-02 11:10:04,312 INFO L226 Difference]: Without dead ends: 219113 [2024-12-02 11:10:04,361 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-12-02 11:10:04,362 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 1162 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1162 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:10:04,362 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1162 Valid, 480 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 11:10:04,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219113 states. [2024-12-02 11:10:06,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219113 to 193767. [2024-12-02 11:10:06,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193767 states, 193766 states have (on average 1.4366865187907063) internal successors, (278381), 193766 states have internal predecessors, (278381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:10:07,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193767 states to 193767 states and 278381 transitions. [2024-12-02 11:10:07,437 INFO L78 Accepts]: Start accepts. Automaton has 193767 states and 278381 transitions. Word has length 163 [2024-12-02 11:10:07,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:10:07,438 INFO L471 AbstractCegarLoop]: Abstraction has 193767 states and 278381 transitions. [2024-12-02 11:10:07,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 6 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:10:07,438 INFO L276 IsEmpty]: Start isEmpty. Operand 193767 states and 278381 transitions. [2024-12-02 11:10:07,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-12-02 11:10:07,440 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:10:07,441 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:10:07,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-12-02 11:10:07,441 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:10:07,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:10:07,441 INFO L85 PathProgramCache]: Analyzing trace with hash 482784995, now seen corresponding path program 1 times [2024-12-02 11:10:07,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:10:07,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494927928] [2024-12-02 11:10:07,442 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:10:07,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:10:07,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:10:07,597 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:10:07,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:10:07,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494927928] [2024-12-02 11:10:07,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494927928] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:10:07,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649405516] [2024-12-02 11:10:07,598 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:10:07,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:10:07,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a345123-fb81-45fa-b820-8f6cf279b030/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:10:07,600 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a345123-fb81-45fa-b820-8f6cf279b030/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:10:07,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a345123-fb81-45fa-b820-8f6cf279b030/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 11:10:08,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:10:08,019 INFO L256 TraceCheckSpWp]: Trace formula consists of 757 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 11:10:08,028 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:10:08,598 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:10:08,598 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:10:08,841 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:10:08,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [649405516] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:10:08,841 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:10:08,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2024-12-02 11:10:08,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785865253] [2024-12-02 11:10:08,841 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:10:08,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 11:10:08,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:10:08,842 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 11:10:08,842 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-12-02 11:10:08,842 INFO L87 Difference]: Start difference. First operand 193767 states and 278381 transitions. Second operand has 11 states, 11 states have (on average 26.454545454545453) internal successors, (291), 10 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:10:10,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:10:10,604 INFO L93 Difference]: Finished difference Result 610603 states and 874991 transitions. [2024-12-02 11:10:10,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:10:10,605 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 26.454545454545453) internal successors, (291), 10 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 163 [2024-12-02 11:10:10,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:10:11,208 INFO L225 Difference]: With dead ends: 610603 [2024-12-02 11:10:11,208 INFO L226 Difference]: Without dead ends: 416969 [2024-12-02 11:10:11,277 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 316 SyntacticMatches, 5 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2024-12-02 11:10:11,277 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 701 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 701 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:10:11,277 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [701 Valid, 689 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 11:10:11,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416969 states. [2024-12-02 11:10:15,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416969 to 406407. [2024-12-02 11:10:15,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406407 states, 406406 states have (on average 1.4267825770288824) internal successors, (579853), 406406 states have internal predecessors, (579853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:10:16,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406407 states to 406407 states and 579853 transitions. [2024-12-02 11:10:16,461 INFO L78 Accepts]: Start accepts. Automaton has 406407 states and 579853 transitions. Word has length 163 [2024-12-02 11:10:16,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:10:16,461 INFO L471 AbstractCegarLoop]: Abstraction has 406407 states and 579853 transitions. [2024-12-02 11:10:16,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 26.454545454545453) internal successors, (291), 10 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:10:16,461 INFO L276 IsEmpty]: Start isEmpty. Operand 406407 states and 579853 transitions. [2024-12-02 11:10:16,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-12-02 11:10:16,465 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:10:16,465 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:10:16,475 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a345123-fb81-45fa-b820-8f6cf279b030/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 11:10:16,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a345123-fb81-45fa-b820-8f6cf279b030/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:10:16,665 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:10:16,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:10:16,666 INFO L85 PathProgramCache]: Analyzing trace with hash 882545537, now seen corresponding path program 1 times [2024-12-02 11:10:16,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:10:16,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610880903] [2024-12-02 11:10:16,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:10:16,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:10:16,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:10:16,838 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:10:16,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:10:16,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610880903] [2024-12-02 11:10:16,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610880903] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:10:16,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:10:16,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:10:16,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493969456] [2024-12-02 11:10:16,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:10:16,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:10:16,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:10:16,839 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:10:16,839 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:10:16,839 INFO L87 Difference]: Start difference. First operand 406407 states and 579853 transitions. Second operand has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 6 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:10:19,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:10:19,940 INFO L93 Difference]: Finished difference Result 920222 states and 1314533 transitions. [2024-12-02 11:10:19,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 11:10:19,941 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 6 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 163 [2024-12-02 11:10:19,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:10:20,993 INFO L225 Difference]: With dead ends: 920222 [2024-12-02 11:10:20,993 INFO L226 Difference]: Without dead ends: 513948 [2024-12-02 11:10:21,112 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2024-12-02 11:10:21,112 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 1241 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1241 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:10:21,113 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1241 Valid, 552 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 11:10:21,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513948 states. [2024-12-02 11:10:25,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513948 to 426000. [2024-12-02 11:10:25,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426000 states, 425999 states have (on average 1.4224845598229103) internal successors, (605977), 425999 states have internal predecessors, (605977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:10:26,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426000 states to 426000 states and 605977 transitions. [2024-12-02 11:10:26,526 INFO L78 Accepts]: Start accepts. Automaton has 426000 states and 605977 transitions. Word has length 163 [2024-12-02 11:10:26,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:10:26,526 INFO L471 AbstractCegarLoop]: Abstraction has 426000 states and 605977 transitions. [2024-12-02 11:10:26,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 6 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:10:26,527 INFO L276 IsEmpty]: Start isEmpty. Operand 426000 states and 605977 transitions. [2024-12-02 11:10:26,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-12-02 11:10:26,591 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:10:26,591 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:10:26,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-12-02 11:10:26,592 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:10:26,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:10:26,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1160282109, now seen corresponding path program 1 times [2024-12-02 11:10:26,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:10:26,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681385146] [2024-12-02 11:10:26,593 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:10:26,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:10:27,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:10:27,200 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-12-02 11:10:27,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:10:27,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681385146] [2024-12-02 11:10:27,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681385146] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:10:27,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:10:27,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:10:27,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960728973] [2024-12-02 11:10:27,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:10:27,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:10:27,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:10:27,201 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:10:27,201 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:10:27,202 INFO L87 Difference]: Start difference. First operand 426000 states and 605977 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:10:29,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:10:29,435 INFO L93 Difference]: Finished difference Result 829588 states and 1177883 transitions. [2024-12-02 11:10:29,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:10:29,436 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 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 198 [2024-12-02 11:10:29,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:10:30,213 INFO L225 Difference]: With dead ends: 829588 [2024-12-02 11:10:30,214 INFO L226 Difference]: Without dead ends: 403727 [2024-12-02 11:10:30,305 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:10:30,306 INFO L435 NwaCegarLoop]: 312 mSDtfsCounter, 102 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:10:30,306 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 522 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:10:30,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403727 states. [2024-12-02 11:10:34,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403727 to 397191. [2024-12-02 11:10:34,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397191 states, 397190 states have (on average 1.4129988166872278) internal successors, (561229), 397190 states have internal predecessors, (561229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:10:35,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397191 states to 397191 states and 561229 transitions. [2024-12-02 11:10:35,284 INFO L78 Accepts]: Start accepts. Automaton has 397191 states and 561229 transitions. Word has length 198 [2024-12-02 11:10:35,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:10:35,284 INFO L471 AbstractCegarLoop]: Abstraction has 397191 states and 561229 transitions. [2024-12-02 11:10:35,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:10:35,284 INFO L276 IsEmpty]: Start isEmpty. Operand 397191 states and 561229 transitions. [2024-12-02 11:10:35,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-12-02 11:10:35,315 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:10:35,315 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:10:35,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-12-02 11:10:35,315 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:10:35,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:10:35,316 INFO L85 PathProgramCache]: Analyzing trace with hash -2080587765, now seen corresponding path program 1 times [2024-12-02 11:10:35,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:10:35,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187449119] [2024-12-02 11:10:35,316 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:10:35,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:10:35,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:10:35,442 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-12-02 11:10:35,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:10:35,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187449119] [2024-12-02 11:10:35,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187449119] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:10:35,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:10:35,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:10:35,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942785470] [2024-12-02 11:10:35,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:10:35,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:10:35,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:10:35,444 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:10:35,444 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:10:35,444 INFO L87 Difference]: Start difference. First operand 397191 states and 561229 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:10:38,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:10:38,211 INFO L93 Difference]: Finished difference Result 772075 states and 1088527 transitions. [2024-12-02 11:10:38,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:10:38,212 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 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 199 [2024-12-02 11:10:38,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:10:38,622 INFO L225 Difference]: With dead ends: 772075 [2024-12-02 11:10:38,623 INFO L226 Difference]: Without dead ends: 375017 [2024-12-02 11:10:38,743 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:10:38,744 INFO L435 NwaCegarLoop]: 307 mSDtfsCounter, 95 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:10:38,744 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 523 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:10:38,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375017 states. [2024-12-02 11:10:42,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375017 to 368679. [2024-12-02 11:10:42,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368679 states, 368678 states have (on average 1.4019740803628098) internal successors, (516877), 368678 states have internal predecessors, (516877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:10:43,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368679 states to 368679 states and 516877 transitions. [2024-12-02 11:10:43,632 INFO L78 Accepts]: Start accepts. Automaton has 368679 states and 516877 transitions. Word has length 199 [2024-12-02 11:10:43,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:10:43,632 INFO L471 AbstractCegarLoop]: Abstraction has 368679 states and 516877 transitions. [2024-12-02 11:10:43,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:10:43,632 INFO L276 IsEmpty]: Start isEmpty. Operand 368679 states and 516877 transitions. [2024-12-02 11:10:43,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-12-02 11:10:43,660 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:10:43,661 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:10:43,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-12-02 11:10:43,661 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:10:43,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:10:43,661 INFO L85 PathProgramCache]: Analyzing trace with hash 408602806, now seen corresponding path program 1 times [2024-12-02 11:10:43,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:10:43,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051645988] [2024-12-02 11:10:43,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:10:43,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:10:43,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:10:43,778 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-12-02 11:10:43,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:10:43,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051645988] [2024-12-02 11:10:43,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051645988] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:10:43,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:10:43,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:10:43,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193748180] [2024-12-02 11:10:43,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:10:43,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:10:43,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:10:43,780 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:10:43,780 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:10:43,780 INFO L87 Difference]: Start difference. First operand 368679 states and 516877 transitions. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:10:45,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:10:45,637 INFO L93 Difference]: Finished difference Result 715051 states and 999823 transitions. [2024-12-02 11:10:45,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:10:45,638 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 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 200 [2024-12-02 11:10:45,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:10:45,990 INFO L225 Difference]: With dead ends: 715051 [2024-12-02 11:10:45,990 INFO L226 Difference]: Without dead ends: 346505 [2024-12-02 11:10:46,146 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:10:46,147 INFO L435 NwaCegarLoop]: 302 mSDtfsCounter, 88 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:10:46,147 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 524 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:10:46,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346505 states. [2024-12-02 11:10:49,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346505 to 340167. [2024-12-02 11:10:49,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340167 states, 340166 states have (on average 1.3891012035300412) internal successors, (472525), 340166 states have internal predecessors, (472525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:10:50,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340167 states to 340167 states and 472525 transitions. [2024-12-02 11:10:50,588 INFO L78 Accepts]: Start accepts. Automaton has 340167 states and 472525 transitions. Word has length 200 [2024-12-02 11:10:50,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:10:50,588 INFO L471 AbstractCegarLoop]: Abstraction has 340167 states and 472525 transitions. [2024-12-02 11:10:50,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:10:50,588 INFO L276 IsEmpty]: Start isEmpty. Operand 340167 states and 472525 transitions. [2024-12-02 11:10:50,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-12-02 11:10:50,610 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:10:50,611 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:10:50,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-12-02 11:10:50,611 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:10:50,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:10:50,611 INFO L85 PathProgramCache]: Analyzing trace with hash 617812592, now seen corresponding path program 1 times [2024-12-02 11:10:50,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:10:50,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087462640] [2024-12-02 11:10:50,611 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:10:50,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:10:50,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:10:50,775 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-12-02 11:10:50,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:10:50,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087462640] [2024-12-02 11:10:50,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087462640] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:10:50,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:10:50,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:10:50,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438240356] [2024-12-02 11:10:50,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:10:50,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:10:50,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:10:50,776 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:10:50,776 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:10:50,776 INFO L87 Difference]: Start difference. First operand 340167 states and 472525 transitions. Second operand has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:10:52,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:10:52,475 INFO L93 Difference]: Finished difference Result 658027 states and 911119 transitions. [2024-12-02 11:10:52,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:10:52,476 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 0 states have call successors, (0), 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 201 [2024-12-02 11:10:52,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:10:52,793 INFO L225 Difference]: With dead ends: 658027 [2024-12-02 11:10:52,794 INFO L226 Difference]: Without dead ends: 317993 [2024-12-02 11:10:52,917 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:10:52,918 INFO L435 NwaCegarLoop]: 297 mSDtfsCounter, 81 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:10:52,918 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 525 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:10:53,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317993 states. [2024-12-02 11:10:55,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317993 to 311655. [2024-12-02 11:10:56,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311655 states, 311654 states have (on average 1.3738729488471189) internal successors, (428173), 311654 states have internal predecessors, (428173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:10:56,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311655 states to 311655 states and 428173 transitions. [2024-12-02 11:10:56,590 INFO L78 Accepts]: Start accepts. Automaton has 311655 states and 428173 transitions. Word has length 201 [2024-12-02 11:10:56,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:10:56,590 INFO L471 AbstractCegarLoop]: Abstraction has 311655 states and 428173 transitions. [2024-12-02 11:10:56,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:10:56,590 INFO L276 IsEmpty]: Start isEmpty. Operand 311655 states and 428173 transitions. [2024-12-02 11:10:56,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-12-02 11:10:56,606 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:10:56,606 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:10:56,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-12-02 11:10:56,606 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:10:56,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:10:56,606 INFO L85 PathProgramCache]: Analyzing trace with hash 390577927, now seen corresponding path program 1 times [2024-12-02 11:10:56,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:10:56,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749222085] [2024-12-02 11:10:56,606 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:10:56,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:10:56,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:10:57,074 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-12-02 11:10:57,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:10:57,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749222085] [2024-12-02 11:10:57,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749222085] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:10:57,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:10:57,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:10:57,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617536890] [2024-12-02 11:10:57,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:10:57,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:10:57,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:10:57,075 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:10:57,075 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:10:57,075 INFO L87 Difference]: Start difference. First operand 311655 states and 428173 transitions. Second operand has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:10:58,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:10:58,832 INFO L93 Difference]: Finished difference Result 602059 states and 825583 transitions. [2024-12-02 11:10:58,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:10:58,832 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 202 [2024-12-02 11:10:58,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:10:59,121 INFO L225 Difference]: With dead ends: 602059 [2024-12-02 11:10:59,121 INFO L226 Difference]: Without dead ends: 290537 [2024-12-02 11:10:59,187 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:10:59,188 INFO L435 NwaCegarLoop]: 292 mSDtfsCounter, 74 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:10:59,188 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 526 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:10:59,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290537 states. [2024-12-02 11:11:01,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290537 to 284199. [2024-12-02 11:11:01,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284199 states, 284198 states have (on average 1.3616879780997755) internal successors, (386989), 284198 states have internal predecessors, (386989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:11:02,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284199 states to 284199 states and 386989 transitions. [2024-12-02 11:11:02,199 INFO L78 Accepts]: Start accepts. Automaton has 284199 states and 386989 transitions. Word has length 202 [2024-12-02 11:11:02,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:11:02,200 INFO L471 AbstractCegarLoop]: Abstraction has 284199 states and 386989 transitions. [2024-12-02 11:11:02,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:11:02,200 INFO L276 IsEmpty]: Start isEmpty. Operand 284199 states and 386989 transitions. [2024-12-02 11:11:02,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-12-02 11:11:02,210 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:11:02,210 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:11:02,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-12-02 11:11:02,210 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:11:02,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:02,210 INFO L85 PathProgramCache]: Analyzing trace with hash 963080813, now seen corresponding path program 1 times [2024-12-02 11:11:02,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:11:02,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072448790] [2024-12-02 11:11:02,211 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:02,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:11:02,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:02,745 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-12-02 11:11:02,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:11:02,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072448790] [2024-12-02 11:11:02,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072448790] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:11:02,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:11:02,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:11:02,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308577552] [2024-12-02 11:11:02,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:11:02,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:11:02,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:11:02,746 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:11:02,746 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:11:02,746 INFO L87 Difference]: Start difference. First operand 284199 states and 386989 transitions. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:11:04,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:11:04,287 INFO L93 Difference]: Finished difference Result 568267 states and 773839 transitions. [2024-12-02 11:11:04,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:11:04,287 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 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 203 [2024-12-02 11:11:04,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:11:04,559 INFO L225 Difference]: With dead ends: 568267 [2024-12-02 11:11:04,559 INFO L226 Difference]: Without dead ends: 284201 [2024-12-02 11:11:04,620 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:11:04,621 INFO L435 NwaCegarLoop]: 293 mSDtfsCounter, 73 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:11:04,621 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 525 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:11:04,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284201 states. [2024-12-02 11:11:06,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284201 to 276807. [2024-12-02 11:11:07,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276807 states, 276806 states have (on average 1.3560869345317659) internal successors, (375373), 276806 states have internal predecessors, (375373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:11:07,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276807 states to 276807 states and 375373 transitions. [2024-12-02 11:11:07,474 INFO L78 Accepts]: Start accepts. Automaton has 276807 states and 375373 transitions. Word has length 203 [2024-12-02 11:11:07,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:11:07,475 INFO L471 AbstractCegarLoop]: Abstraction has 276807 states and 375373 transitions. [2024-12-02 11:11:07,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:11:07,475 INFO L276 IsEmpty]: Start isEmpty. Operand 276807 states and 375373 transitions. [2024-12-02 11:11:07,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-12-02 11:11:07,480 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:11:07,480 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:11:07,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-12-02 11:11:07,480 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:11:07,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:07,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1731680607, now seen corresponding path program 1 times [2024-12-02 11:11:07,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:11:07,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767461837] [2024-12-02 11:11:07,481 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:07,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:11:07,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:08,327 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 19 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:11:08,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:11:08,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767461837] [2024-12-02 11:11:08,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767461837] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:11:08,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [507439711] [2024-12-02 11:11:08,328 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:08,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:11:08,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a345123-fb81-45fa-b820-8f6cf279b030/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:11:08,329 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a345123-fb81-45fa-b820-8f6cf279b030/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:11:08,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a345123-fb81-45fa-b820-8f6cf279b030/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 11:11:08,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:08,578 INFO L256 TraceCheckSpWp]: Trace formula consists of 898 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-02 11:11:08,583 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:11:09,563 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 13 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:11:09,564 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:11:12,096 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 13 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:11:12,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [507439711] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:11:12,096 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:11:12,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 30 [2024-12-02 11:11:12,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200186239] [2024-12-02 11:11:12,097 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:11:12,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-12-02 11:11:12,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:11:12,097 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-12-02 11:11:12,098 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=834, Unknown=0, NotChecked=0, Total=930 [2024-12-02 11:11:12,098 INFO L87 Difference]: Start difference. First operand 276807 states and 375373 transitions. Second operand has 31 states, 31 states have (on average 18.548387096774192) internal successors, (575), 30 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)