./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label47+token_ring.02.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label47+token_ring.02.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 e29588631802f33e276df8c8a4376435a271a426c8b5d54fd1eb814b142c7499 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-19 23:29:24,589 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 23:29:24,678 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 23:29:24,684 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 23:29:24,684 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 23:29:24,703 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 23:29:24,703 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 23:29:24,704 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 23:29:24,704 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 23:29:24,705 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 23:29:24,705 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 23:29:24,705 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 23:29:24,706 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 23:29:24,707 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 23:29:24,709 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 23:29:24,709 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 23:29:24,709 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 23:29:24,709 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 23:29:24,710 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 23:29:24,710 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 23:29:24,710 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 23:29:24,711 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 23:29:24,711 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 23:29:24,711 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 23:29:24,712 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 23:29:24,712 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 23:29:24,712 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 23:29:24,712 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 23:29:24,713 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 23:29:24,713 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 23:29:24,713 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 23:29:24,714 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 23:29:24,714 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 23:29:24,714 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 23:29:24,715 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 23:29:24,715 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 23:29:24,715 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 23:29:24,716 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 23:29:24,716 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 23:29:24,716 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 23:29:24,716 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 23:29:24,718 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 23:29:24,719 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e29588631802f33e276df8c8a4376435a271a426c8b5d54fd1eb814b142c7499 [2024-11-19 23:29:24,962 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 23:29:24,984 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 23:29:24,987 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 23:29:24,988 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 23:29:24,989 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 23:29:24,990 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label47+token_ring.02.cil-1.c [2024-11-19 23:29:26,412 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 23:29:27,078 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 23:29:27,079 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label47+token_ring.02.cil-1.c [2024-11-19 23:29:27,121 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51bd8b2af/56255442a7f642a2b090fdfa71e86aa4/FLAG6849bbc4f [2024-11-19 23:29:27,134 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51bd8b2af/56255442a7f642a2b090fdfa71e86aa4 [2024-11-19 23:29:27,137 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 23:29:27,138 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 23:29:27,139 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 23:29:27,139 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 23:29:27,146 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 23:29:27,147 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:29:27" (1/1) ... [2024-11-19 23:29:27,148 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34a1d71b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:29:27, skipping insertion in model container [2024-11-19 23:29:27,150 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:29:27" (1/1) ... [2024-11-19 23:29:27,316 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 23:29:29,195 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label47+token_ring.02.cil-1.c[377612,377625] [2024-11-19 23:29:29,225 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label47+token_ring.02.cil-1.c[383339,383352] [2024-11-19 23:29:29,366 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 23:29:29,377 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 23:29:30,130 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label47+token_ring.02.cil-1.c[377612,377625] [2024-11-19 23:29:30,139 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label47+token_ring.02.cil-1.c[383339,383352] [2024-11-19 23:29:30,151 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 23:29:30,207 INFO L204 MainTranslator]: Completed translation [2024-11-19 23:29:30,208 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:29:30 WrapperNode [2024-11-19 23:29:30,208 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 23:29:30,209 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 23:29:30,209 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 23:29:30,209 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 23:29:30,216 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:29:30" (1/1) ... [2024-11-19 23:29:30,347 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:29:30" (1/1) ... [2024-11-19 23:29:30,643 INFO L138 Inliner]: procedures = 48, calls = 47, calls flagged for inlining = 26, calls inlined = 26, statements flattened = 12633 [2024-11-19 23:29:30,643 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 23:29:30,644 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 23:29:30,644 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 23:29:30,645 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 23:29:30,656 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:29:30" (1/1) ... [2024-11-19 23:29:30,656 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:29:30" (1/1) ... [2024-11-19 23:29:30,814 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:29:30" (1/1) ... [2024-11-19 23:29:30,913 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]. [2024-11-19 23:29:30,914 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:29:30" (1/1) ... [2024-11-19 23:29:30,914 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:29:30" (1/1) ... [2024-11-19 23:29:31,164 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:29:30" (1/1) ... [2024-11-19 23:29:31,243 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:29:30" (1/1) ... [2024-11-19 23:29:31,286 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:29:30" (1/1) ... [2024-11-19 23:29:31,313 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:29:30" (1/1) ... [2024-11-19 23:29:31,408 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 23:29:31,409 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 23:29:31,409 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 23:29:31,409 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 23:29:31,410 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:29:30" (1/1) ... [2024-11-19 23:29:31,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 23:29:31,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 23:29:31,481 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 23:29:31,491 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 23:29:31,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 23:29:31,583 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-19 23:29:31,583 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-19 23:29:31,583 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-19 23:29:31,584 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-19 23:29:31,584 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-19 23:29:31,584 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-19 23:29:31,584 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-19 23:29:31,584 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-19 23:29:31,584 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-19 23:29:31,585 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-19 23:29:31,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 23:29:31,585 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-19 23:29:31,585 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-19 23:29:31,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 23:29:31,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 23:29:31,675 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 23:29:31,677 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 23:29:39,233 INFO L? ?]: Removed 1695 outVars from TransFormulas that were not future-live. [2024-11-19 23:29:39,233 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 23:29:39,289 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 23:29:39,290 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-19 23:29:39,290 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:29:39 BoogieIcfgContainer [2024-11-19 23:29:39,291 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 23:29:39,294 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 23:29:39,295 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 23:29:39,298 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 23:29:39,298 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 11:29:27" (1/3) ... [2024-11-19 23:29:39,299 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f2c9e6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:29:39, skipping insertion in model container [2024-11-19 23:29:39,299 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:29:30" (2/3) ... [2024-11-19 23:29:39,299 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f2c9e6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:29:39, skipping insertion in model container [2024-11-19 23:29:39,299 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:29:39" (3/3) ... [2024-11-19 23:29:39,301 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label47+token_ring.02.cil-1.c [2024-11-19 23:29:39,317 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 23:29:39,317 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-19 23:29:39,521 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 23:29:39,527 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;@14095cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 23:29:39,527 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-19 23:29:39,537 INFO L276 IsEmpty]: Start isEmpty. Operand has 2318 states, 2293 states have (on average 1.8560837331007414) internal successors, (4256), 2296 states have internal predecessors, (4256), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-19 23:29:39,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-19 23:29:39,549 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:29:39,550 INFO L215 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] [2024-11-19 23:29:39,550 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:29:39,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:29:39,556 INFO L85 PathProgramCache]: Analyzing trace with hash -257117409, now seen corresponding path program 1 times [2024-11-19 23:29:39,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:29:39,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187544331] [2024-11-19 23:29:39,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:29:39,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:29:39,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:39,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:29:39,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:40,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 23:29:40,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:40,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-19 23:29:40,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:40,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-19 23:29:40,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:40,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-19 23:29:40,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:40,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:29:40,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:29:40,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187544331] [2024-11-19 23:29:40,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187544331] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:29:40,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:29:40,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 23:29:40,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692436825] [2024-11-19 23:29:40,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:29:40,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 23:29:40,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:29:40,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 23:29:40,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 23:29:40,173 INFO L87 Difference]: Start difference. First operand has 2318 states, 2293 states have (on average 1.8560837331007414) internal successors, (4256), 2296 states have internal predecessors, (4256), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:29:41,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:29:41,297 INFO L93 Difference]: Finished difference Result 4811 states and 8854 transitions. [2024-11-19 23:29:41,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 23:29:41,301 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 68 [2024-11-19 23:29:41,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:29:41,333 INFO L225 Difference]: With dead ends: 4811 [2024-11-19 23:29:41,333 INFO L226 Difference]: Without dead ends: 2433 [2024-11-19 23:29:41,350 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-19 23:29:41,354 INFO L432 NwaCegarLoop]: 4145 mSDtfsCounter, 4439 mSDsluCounter, 12417 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4448 SdHoareTripleChecker+Valid, 16562 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 23:29:41,357 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4448 Valid, 16562 Invalid, 654 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [68 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 23:29:41,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2433 states. [2024-11-19 23:29:41,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2433 to 2370. [2024-11-19 23:29:41,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2370 states, 2328 states have (on average 1.8311855670103092) internal successors, (4263), 2331 states have internal predecessors, (4263), 27 states have call successors, (27), 12 states have call predecessors, (27), 13 states have return successors, (30), 27 states have call predecessors, (30), 27 states have call successors, (30) [2024-11-19 23:29:41,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2370 states to 2370 states and 4320 transitions. [2024-11-19 23:29:41,531 INFO L78 Accepts]: Start accepts. Automaton has 2370 states and 4320 transitions. Word has length 68 [2024-11-19 23:29:41,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:29:41,532 INFO L471 AbstractCegarLoop]: Abstraction has 2370 states and 4320 transitions. [2024-11-19 23:29:41,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:29:41,533 INFO L276 IsEmpty]: Start isEmpty. Operand 2370 states and 4320 transitions. [2024-11-19 23:29:41,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-19 23:29:41,536 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:29:41,536 INFO L215 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] [2024-11-19 23:29:41,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 23:29:41,537 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:29:41,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:29:41,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1270216611, now seen corresponding path program 1 times [2024-11-19 23:29:41,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:29:41,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372298961] [2024-11-19 23:29:41,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:29:41,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:29:41,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:41,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:29:41,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:41,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 23:29:41,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:41,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-19 23:29:41,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:41,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-19 23:29:41,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:41,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-19 23:29:41,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:41,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:29:41,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:29:41,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372298961] [2024-11-19 23:29:41,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372298961] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:29:41,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:29:41,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 23:29:41,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28860220] [2024-11-19 23:29:41,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:29:41,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 23:29:41,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:29:41,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 23:29:41,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 23:29:41,836 INFO L87 Difference]: Start difference. First operand 2370 states and 4320 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:29:43,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:29:43,017 INFO L93 Difference]: Finished difference Result 2822 states and 4989 transitions. [2024-11-19 23:29:43,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 23:29:43,018 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 68 [2024-11-19 23:29:43,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:29:43,032 INFO L225 Difference]: With dead ends: 2822 [2024-11-19 23:29:43,032 INFO L226 Difference]: Without dead ends: 2583 [2024-11-19 23:29:43,035 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-19 23:29:43,036 INFO L432 NwaCegarLoop]: 4156 mSDtfsCounter, 4367 mSDsluCounter, 16454 mSDsCounter, 0 mSdLazyCounter, 954 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4376 SdHoareTripleChecker+Valid, 20610 SdHoareTripleChecker+Invalid, 995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-19 23:29:43,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4376 Valid, 20610 Invalid, 995 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [41 Valid, 954 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-19 23:29:43,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2583 states. [2024-11-19 23:29:43,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2583 to 2482. [2024-11-19 23:29:43,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2482 states, 2422 states have (on average 1.8158546655656482) internal successors, (4398), 2426 states have internal predecessors, (4398), 38 states have call successors, (38), 18 states have call predecessors, (38), 20 states have return successors, (43), 39 states have call predecessors, (43), 38 states have call successors, (43) [2024-11-19 23:29:43,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2482 states to 2482 states and 4479 transitions. [2024-11-19 23:29:43,142 INFO L78 Accepts]: Start accepts. Automaton has 2482 states and 4479 transitions. Word has length 68 [2024-11-19 23:29:43,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:29:43,143 INFO L471 AbstractCegarLoop]: Abstraction has 2482 states and 4479 transitions. [2024-11-19 23:29:43,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:29:43,145 INFO L276 IsEmpty]: Start isEmpty. Operand 2482 states and 4479 transitions. [2024-11-19 23:29:43,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-19 23:29:43,150 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:29:43,151 INFO L215 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] [2024-11-19 23:29:43,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 23:29:43,151 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:29:43,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:29:43,154 INFO L85 PathProgramCache]: Analyzing trace with hash 2146235617, now seen corresponding path program 1 times [2024-11-19 23:29:43,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:29:43,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334857087] [2024-11-19 23:29:43,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:29:43,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:29:43,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:43,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:29:43,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:43,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 23:29:43,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:43,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-19 23:29:43,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:43,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-19 23:29:43,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:43,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-19 23:29:43,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:43,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:29:43,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:29:43,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334857087] [2024-11-19 23:29:43,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334857087] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:29:43,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:29:43,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 23:29:43,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372164611] [2024-11-19 23:29:43,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:29:43,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 23:29:43,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:29:43,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 23:29:43,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 23:29:43,334 INFO L87 Difference]: Start difference. First operand 2482 states and 4479 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:29:44,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:29:44,449 INFO L93 Difference]: Finished difference Result 3217 states and 5562 transitions. [2024-11-19 23:29:44,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 23:29:44,450 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 68 [2024-11-19 23:29:44,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:29:44,464 INFO L225 Difference]: With dead ends: 3217 [2024-11-19 23:29:44,464 INFO L226 Difference]: Without dead ends: 2866 [2024-11-19 23:29:44,466 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-19 23:29:44,469 INFO L432 NwaCegarLoop]: 4085 mSDtfsCounter, 4405 mSDsluCounter, 16264 mSDsCounter, 0 mSdLazyCounter, 797 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4414 SdHoareTripleChecker+Valid, 20349 SdHoareTripleChecker+Invalid, 856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 23:29:44,470 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4414 Valid, 20349 Invalid, 856 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [59 Valid, 797 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 23:29:44,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2866 states. [2024-11-19 23:29:44,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2866 to 2707. [2024-11-19 23:29:44,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2707 states, 2611 states have (on average 1.7882037533512065) internal successors, (4669), 2617 states have internal predecessors, (4669), 60 states have call successors, (60), 30 states have call predecessors, (60), 34 states have return successors, (73), 63 states have call predecessors, (73), 60 states have call successors, (73) [2024-11-19 23:29:44,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2707 states to 2707 states and 4802 transitions. [2024-11-19 23:29:44,563 INFO L78 Accepts]: Start accepts. Automaton has 2707 states and 4802 transitions. Word has length 68 [2024-11-19 23:29:44,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:29:44,564 INFO L471 AbstractCegarLoop]: Abstraction has 2707 states and 4802 transitions. [2024-11-19 23:29:44,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:29:44,564 INFO L276 IsEmpty]: Start isEmpty. Operand 2707 states and 4802 transitions. [2024-11-19 23:29:44,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-19 23:29:44,566 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:29:44,566 INFO L215 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] [2024-11-19 23:29:44,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 23:29:44,567 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:29:44,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:29:44,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1704831005, now seen corresponding path program 1 times [2024-11-19 23:29:44,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:29:44,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218173653] [2024-11-19 23:29:44,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:29:44,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:29:44,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:44,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:29:44,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:44,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 23:29:44,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:44,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-19 23:29:44,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:44,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-19 23:29:44,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:44,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-19 23:29:44,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:44,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:29:44,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:29:44,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218173653] [2024-11-19 23:29:44,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218173653] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:29:44,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:29:44,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 23:29:44,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139934602] [2024-11-19 23:29:44,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:29:44,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 23:29:44,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:29:44,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 23:29:44,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 23:29:44,740 INFO L87 Difference]: Start difference. First operand 2707 states and 4802 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:29:45,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:29:45,895 INFO L93 Difference]: Finished difference Result 4079 states and 6811 transitions. [2024-11-19 23:29:45,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 23:29:45,895 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 68 [2024-11-19 23:29:45,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:29:45,914 INFO L225 Difference]: With dead ends: 4079 [2024-11-19 23:29:45,914 INFO L226 Difference]: Without dead ends: 3503 [2024-11-19 23:29:45,920 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-19 23:29:45,922 INFO L432 NwaCegarLoop]: 4151 mSDtfsCounter, 4377 mSDsluCounter, 16443 mSDsCounter, 0 mSdLazyCounter, 1043 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4385 SdHoareTripleChecker+Valid, 20594 SdHoareTripleChecker+Invalid, 1088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-19 23:29:45,923 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4385 Valid, 20594 Invalid, 1088 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1043 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-19 23:29:45,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3503 states. [2024-11-19 23:29:46,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3503 to 3131. [2024-11-19 23:29:46,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3131 states, 2967 states have (on average 1.7462082912032355) internal successors, (5181), 2977 states have internal predecessors, (5181), 100 states have call successors, (100), 54 states have call predecessors, (100), 62 states have return successors, (135), 107 states have call predecessors, (135), 100 states have call successors, (135) [2024-11-19 23:29:46,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3131 states to 3131 states and 5416 transitions. [2024-11-19 23:29:46,045 INFO L78 Accepts]: Start accepts. Automaton has 3131 states and 5416 transitions. Word has length 68 [2024-11-19 23:29:46,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:29:46,046 INFO L471 AbstractCegarLoop]: Abstraction has 3131 states and 5416 transitions. [2024-11-19 23:29:46,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:29:46,046 INFO L276 IsEmpty]: Start isEmpty. Operand 3131 states and 5416 transitions. [2024-11-19 23:29:46,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-19 23:29:46,048 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:29:46,048 INFO L215 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] [2024-11-19 23:29:46,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 23:29:46,048 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:29:46,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:29:46,049 INFO L85 PathProgramCache]: Analyzing trace with hash 561550181, now seen corresponding path program 1 times [2024-11-19 23:29:46,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:29:46,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914396386] [2024-11-19 23:29:46,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:29:46,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:29:46,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:46,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:29:46,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:46,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 23:29:46,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:46,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-19 23:29:46,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:46,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-19 23:29:46,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:46,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-19 23:29:46,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:46,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:29:46,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:29:46,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914396386] [2024-11-19 23:29:46,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914396386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:29:46,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:29:46,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 23:29:46,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589706219] [2024-11-19 23:29:46,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:29:46,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 23:29:46,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:29:46,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 23:29:46,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 23:29:46,186 INFO L87 Difference]: Start difference. First operand 3131 states and 5416 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:29:47,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:29:47,315 INFO L93 Difference]: Finished difference Result 5513 states and 8887 transitions. [2024-11-19 23:29:47,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 23:29:47,316 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 68 [2024-11-19 23:29:47,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:29:47,336 INFO L225 Difference]: With dead ends: 5513 [2024-11-19 23:29:47,336 INFO L226 Difference]: Without dead ends: 4513 [2024-11-19 23:29:47,341 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-19 23:29:47,341 INFO L432 NwaCegarLoop]: 4152 mSDtfsCounter, 4379 mSDsluCounter, 16446 mSDsCounter, 0 mSdLazyCounter, 902 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4391 SdHoareTripleChecker+Valid, 20598 SdHoareTripleChecker+Invalid, 949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-19 23:29:47,342 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4391 Valid, 20598 Invalid, 949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 902 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-19 23:29:47,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4513 states. [2024-11-19 23:29:47,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4513 to 3992. [2024-11-19 23:29:47,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3992 states, 3696 states have (on average 1.6869588744588744) internal successors, (6235), 3714 states have internal predecessors, (6235), 176 states have call successors, (176), 102 states have call predecessors, (176), 118 states have return successors, (273), 191 states have call predecessors, (273), 176 states have call successors, (273) [2024-11-19 23:29:47,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3992 states to 3992 states and 6684 transitions. [2024-11-19 23:29:47,536 INFO L78 Accepts]: Start accepts. Automaton has 3992 states and 6684 transitions. Word has length 68 [2024-11-19 23:29:47,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:29:47,537 INFO L471 AbstractCegarLoop]: Abstraction has 3992 states and 6684 transitions. [2024-11-19 23:29:47,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:29:47,538 INFO L276 IsEmpty]: Start isEmpty. Operand 3992 states and 6684 transitions. [2024-11-19 23:29:47,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-19 23:29:47,542 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:29:47,542 INFO L215 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] [2024-11-19 23:29:47,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 23:29:47,543 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:29:47,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:29:47,543 INFO L85 PathProgramCache]: Analyzing trace with hash 80469923, now seen corresponding path program 1 times [2024-11-19 23:29:47,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:29:47,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140910623] [2024-11-19 23:29:47,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:29:47,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:29:47,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:47,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:29:47,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:47,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 23:29:47,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:47,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-19 23:29:47,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:47,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-19 23:29:47,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:47,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-19 23:29:47,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:47,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:29:47,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:29:47,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140910623] [2024-11-19 23:29:47,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140910623] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:29:47,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:29:47,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 23:29:47,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826390380] [2024-11-19 23:29:47,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:29:47,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 23:29:47,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:29:47,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 23:29:47,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 23:29:47,638 INFO L87 Difference]: Start difference. First operand 3992 states and 6684 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:29:48,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:29:48,584 INFO L93 Difference]: Finished difference Result 7407 states and 11705 transitions. [2024-11-19 23:29:48,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 23:29:48,585 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 68 [2024-11-19 23:29:48,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:29:48,615 INFO L225 Difference]: With dead ends: 7407 [2024-11-19 23:29:48,615 INFO L226 Difference]: Without dead ends: 5547 [2024-11-19 23:29:48,624 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-19 23:29:48,627 INFO L432 NwaCegarLoop]: 4178 mSDtfsCounter, 4509 mSDsluCounter, 12260 mSDsCounter, 0 mSdLazyCounter, 779 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4534 SdHoareTripleChecker+Valid, 16438 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 23:29:48,627 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4534 Valid, 16438 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 779 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 23:29:48,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5547 states. [2024-11-19 23:29:48,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5547 to 4960. [2024-11-19 23:29:48,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4960 states, 4506 states have (on average 1.6344873501997337) internal successors, (7365), 4541 states have internal predecessors, (7365), 272 states have call successors, (272), 156 states have call predecessors, (272), 180 states have return successors, (397), 278 states have call predecessors, (397), 272 states have call successors, (397) [2024-11-19 23:29:48,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4960 states to 4960 states and 8034 transitions. [2024-11-19 23:29:48,851 INFO L78 Accepts]: Start accepts. Automaton has 4960 states and 8034 transitions. Word has length 68 [2024-11-19 23:29:48,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:29:48,851 INFO L471 AbstractCegarLoop]: Abstraction has 4960 states and 8034 transitions. [2024-11-19 23:29:48,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:29:48,852 INFO L276 IsEmpty]: Start isEmpty. Operand 4960 states and 8034 transitions. [2024-11-19 23:29:48,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-19 23:29:48,861 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:29:48,861 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:29:48,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 23:29:48,862 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:29:48,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:29:48,862 INFO L85 PathProgramCache]: Analyzing trace with hash -855841062, now seen corresponding path program 1 times [2024-11-19 23:29:48,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:29:48,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30028339] [2024-11-19 23:29:48,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:29:48,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:29:48,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:48,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:29:48,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:48,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 23:29:48,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:48,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-19 23:29:48,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:49,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-19 23:29:49,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:49,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-19 23:29:49,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:49,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-19 23:29:49,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:49,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-19 23:29:49,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:49,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-19 23:29:49,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:49,075 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-19 23:29:49,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:29:49,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30028339] [2024-11-19 23:29:49,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30028339] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 23:29:49,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1444676262] [2024-11-19 23:29:49,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:29:49,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 23:29:49,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 23:29:49,080 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 23:29:49,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 23:29:49,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:49,182 INFO L255 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 23:29:49,191 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 23:29:49,254 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-19 23:29:49,254 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 23:29:49,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1444676262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:29:49,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 23:29:49,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2024-11-19 23:29:49,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746806305] [2024-11-19 23:29:49,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:29:49,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 23:29:49,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:29:49,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 23:29:49,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 23:29:49,257 INFO L87 Difference]: Start difference. First operand 4960 states and 8034 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-19 23:29:49,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:29:49,623 INFO L93 Difference]: Finished difference Result 10473 states and 16024 transitions. [2024-11-19 23:29:49,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 23:29:49,623 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 111 [2024-11-19 23:29:49,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:29:49,671 INFO L225 Difference]: With dead ends: 10473 [2024-11-19 23:29:49,671 INFO L226 Difference]: Without dead ends: 7645 [2024-11-19 23:29:49,681 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 23:29:49,682 INFO L432 NwaCegarLoop]: 4142 mSDtfsCounter, 4101 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4101 SdHoareTripleChecker+Valid, 4304 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 23:29:49,683 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4101 Valid, 4304 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 23:29:49,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7645 states. [2024-11-19 23:29:49,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7645 to 7591. [2024-11-19 23:29:50,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7591 states, 6723 states have (on average 1.5650751152759186) internal successors, (10522), 6791 states have internal predecessors, (10522), 510 states have call successors, (510), 308 states have call predecessors, (510), 356 states have return successors, (745), 507 states have call predecessors, (745), 510 states have call successors, (745) [2024-11-19 23:29:50,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7591 states to 7591 states and 11777 transitions. [2024-11-19 23:29:50,039 INFO L78 Accepts]: Start accepts. Automaton has 7591 states and 11777 transitions. Word has length 111 [2024-11-19 23:29:50,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:29:50,040 INFO L471 AbstractCegarLoop]: Abstraction has 7591 states and 11777 transitions. [2024-11-19 23:29:50,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-19 23:29:50,041 INFO L276 IsEmpty]: Start isEmpty. Operand 7591 states and 11777 transitions. [2024-11-19 23:29:50,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-19 23:29:50,054 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:29:50,054 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:29:50,064 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 23:29:50,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 23:29:50,259 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:29:50,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:29:50,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1748397894, now seen corresponding path program 1 times [2024-11-19 23:29:50,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:29:50,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040879936] [2024-11-19 23:29:50,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:29:50,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:29:50,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:50,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:29:50,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:50,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 23:29:50,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:50,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-19 23:29:50,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:50,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-19 23:29:50,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:50,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-19 23:29:50,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:50,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-19 23:29:50,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:50,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-19 23:29:50,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:50,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-19 23:29:50,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:50,378 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-19 23:29:50,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:29:50,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040879936] [2024-11-19 23:29:50,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040879936] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 23:29:50,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [122619643] [2024-11-19 23:29:50,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:29:50,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 23:29:50,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 23:29:50,381 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 23:29:50,382 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 23:29:50,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:50,474 INFO L255 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 23:29:50,476 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 23:29:50,514 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-19 23:29:50,515 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 23:29:50,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [122619643] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:29:50,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 23:29:50,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-19 23:29:50,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043006040] [2024-11-19 23:29:50,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:29:50,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 23:29:50,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:29:50,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 23:29:50,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 23:29:50,517 INFO L87 Difference]: Start difference. First operand 7591 states and 11777 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-19 23:29:51,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:29:51,154 INFO L93 Difference]: Finished difference Result 18185 states and 27229 transitions. [2024-11-19 23:29:51,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 23:29:51,155 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 111 [2024-11-19 23:29:51,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:29:51,217 INFO L225 Difference]: With dead ends: 18185 [2024-11-19 23:29:51,217 INFO L226 Difference]: Without dead ends: 12727 [2024-11-19 23:29:51,237 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 23:29:51,239 INFO L432 NwaCegarLoop]: 4304 mSDtfsCounter, 156 mSDsluCounter, 4140 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 8444 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 23:29:51,239 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 8444 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 23:29:51,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12727 states. [2024-11-19 23:29:52,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12727 to 12727. [2024-11-19 23:29:52,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12727 states, 11046 states have (on average 1.5039833423863842) internal successors, (16613), 11163 states have internal predecessors, (16613), 975 states have call successors, (975), 608 states have call predecessors, (975), 704 states have return successors, (1596), 987 states have call predecessors, (1596), 975 states have call successors, (1596) [2024-11-19 23:29:52,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12727 states to 12727 states and 19184 transitions. [2024-11-19 23:29:52,125 INFO L78 Accepts]: Start accepts. Automaton has 12727 states and 19184 transitions. Word has length 111 [2024-11-19 23:29:52,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:29:52,126 INFO L471 AbstractCegarLoop]: Abstraction has 12727 states and 19184 transitions. [2024-11-19 23:29:52,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-19 23:29:52,126 INFO L276 IsEmpty]: Start isEmpty. Operand 12727 states and 19184 transitions. [2024-11-19 23:29:52,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-19 23:29:52,162 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:29:52,163 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:29:52,173 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 23:29:52,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-19 23:29:52,367 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:29:52,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:29:52,367 INFO L85 PathProgramCache]: Analyzing trace with hash 508044484, now seen corresponding path program 1 times [2024-11-19 23:29:52,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:29:52,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096561689] [2024-11-19 23:29:52,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:29:52,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:29:52,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:52,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:29:52,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:52,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 23:29:52,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:52,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-19 23:29:52,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:52,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-19 23:29:52,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:52,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-19 23:29:52,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:52,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-19 23:29:52,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:52,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-19 23:29:52,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:52,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-19 23:29:52,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:52,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-19 23:29:52,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:52,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-19 23:29:52,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:52,556 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-19 23:29:52,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:29:52,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096561689] [2024-11-19 23:29:52,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096561689] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 23:29:52,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [158905217] [2024-11-19 23:29:52,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:29:52,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 23:29:52,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 23:29:52,561 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 23:29:52,562 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 23:29:52,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:52,679 INFO L255 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 23:29:52,683 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 23:29:52,833 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-19 23:29:52,834 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 23:29:52,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [158905217] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:29:52,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 23:29:52,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2024-11-19 23:29:52,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711971871] [2024-11-19 23:29:52,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:29:52,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 23:29:52,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:29:52,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 23:29:52,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 23:29:52,837 INFO L87 Difference]: Start difference. First operand 12727 states and 19184 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-19 23:29:53,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:29:53,776 INFO L93 Difference]: Finished difference Result 33475 states and 49297 transitions. [2024-11-19 23:29:53,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 23:29:53,776 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 144 [2024-11-19 23:29:53,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:29:53,874 INFO L225 Difference]: With dead ends: 33475 [2024-11-19 23:29:53,874 INFO L226 Difference]: Without dead ends: 22885 [2024-11-19 23:29:53,917 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 23:29:53,918 INFO L432 NwaCegarLoop]: 4145 mSDtfsCounter, 4058 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4058 SdHoareTripleChecker+Valid, 4307 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 23:29:53,918 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4058 Valid, 4307 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 23:29:53,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22885 states. [2024-11-19 23:29:55,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22885 to 22675. [2024-11-19 23:29:55,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22675 states, 19414 states have (on average 1.4625012877305037) internal successors, (28393), 19645 states have internal predecessors, (28393), 1869 states have call successors, (1869), 1198 states have call predecessors, (1869), 1390 states have return successors, (3038), 1863 states have call predecessors, (3038), 1869 states have call successors, (3038) [2024-11-19 23:29:55,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22675 states to 22675 states and 33300 transitions. [2024-11-19 23:29:55,200 INFO L78 Accepts]: Start accepts. Automaton has 22675 states and 33300 transitions. Word has length 144 [2024-11-19 23:29:55,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:29:55,201 INFO L471 AbstractCegarLoop]: Abstraction has 22675 states and 33300 transitions. [2024-11-19 23:29:55,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-19 23:29:55,201 INFO L276 IsEmpty]: Start isEmpty. Operand 22675 states and 33300 transitions. [2024-11-19 23:29:55,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-19 23:29:55,258 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:29:55,259 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-19 23:29:55,267 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 23:29:55,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 23:29:55,463 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:29:55,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:29:55,464 INFO L85 PathProgramCache]: Analyzing trace with hash 663714365, now seen corresponding path program 1 times [2024-11-19 23:29:55,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:29:55,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850358610] [2024-11-19 23:29:55,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:29:55,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:29:55,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:55,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:29:55,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:55,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 23:29:55,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:55,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-19 23:29:55,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:55,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-19 23:29:55,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:55,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-19 23:29:55,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:55,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-19 23:29:55,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:55,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-19 23:29:55,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:55,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-19 23:29:55,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:55,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-19 23:29:55,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:55,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-19 23:29:55,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:55,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-19 23:29:55,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:55,630 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-11-19 23:29:55,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:29:55,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850358610] [2024-11-19 23:29:55,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850358610] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 23:29:55,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2081103724] [2024-11-19 23:29:55,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:29:55,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 23:29:55,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 23:29:55,633 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 23:29:55,634 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 23:29:55,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:55,736 INFO L255 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 23:29:55,739 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 23:29:55,821 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-19 23:29:55,822 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 23:29:55,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2081103724] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:29:55,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 23:29:55,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-19 23:29:55,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648650141] [2024-11-19 23:29:55,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:29:55,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 23:29:55,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:29:55,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 23:29:55,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 23:29:55,825 INFO L87 Difference]: Start difference. First operand 22675 states and 33300 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-19 23:29:56,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:29:56,759 INFO L93 Difference]: Finished difference Result 36401 states and 53409 transitions. [2024-11-19 23:29:56,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 23:29:56,760 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 162 [2024-11-19 23:29:56,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:29:56,834 INFO L225 Difference]: With dead ends: 36401 [2024-11-19 23:29:56,835 INFO L226 Difference]: Without dead ends: 20297 [2024-11-19 23:29:56,876 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 23:29:56,877 INFO L432 NwaCegarLoop]: 4142 mSDtfsCounter, 4094 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4094 SdHoareTripleChecker+Valid, 4176 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 23:29:56,877 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4094 Valid, 4176 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 23:29:56,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20297 states. [2024-11-19 23:29:57,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20297 to 15281. [2024-11-19 23:29:57,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15281 states, 13228 states have (on average 1.4423193226489266) internal successors, (19079), 13349 states have internal predecessors, (19079), 1161 states have call successors, (1161), 794 states have call predecessors, (1161), 890 states have return successors, (1648), 1153 states have call predecessors, (1648), 1161 states have call successors, (1648) [2024-11-19 23:29:57,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15281 states to 15281 states and 21888 transitions. [2024-11-19 23:29:57,672 INFO L78 Accepts]: Start accepts. Automaton has 15281 states and 21888 transitions. Word has length 162 [2024-11-19 23:29:57,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:29:57,673 INFO L471 AbstractCegarLoop]: Abstraction has 15281 states and 21888 transitions. [2024-11-19 23:29:57,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-19 23:29:57,673 INFO L276 IsEmpty]: Start isEmpty. Operand 15281 states and 21888 transitions. [2024-11-19 23:29:57,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-19 23:29:57,709 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:29:57,709 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:29:57,720 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-19 23:29:57,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 23:29:57,914 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:29:57,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:29:57,915 INFO L85 PathProgramCache]: Analyzing trace with hash -781315429, now seen corresponding path program 1 times [2024-11-19 23:29:57,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:29:57,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118190747] [2024-11-19 23:29:57,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:29:57,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:29:57,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:57,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:29:57,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:57,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 23:29:57,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:58,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-19 23:29:58,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:58,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-19 23:29:58,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:58,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-19 23:29:58,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:58,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-19 23:29:58,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:58,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-19 23:29:58,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:58,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-19 23:29:58,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:58,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-19 23:29:58,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:58,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-19 23:29:58,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:58,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-19 23:29:58,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:58,069 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-11-19 23:29:58,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:29:58,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118190747] [2024-11-19 23:29:58,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118190747] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 23:29:58,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1452346175] [2024-11-19 23:29:58,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:29:58,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 23:29:58,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 23:29:58,072 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 23:29:58,074 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 23:29:58,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:29:58,183 INFO L255 TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 23:29:58,186 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 23:29:58,238 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-19 23:29:58,238 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 23:29:58,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1452346175] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:29:58,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 23:29:58,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-19 23:29:58,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495260501] [2024-11-19 23:29:58,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:29:58,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 23:29:58,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:29:58,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 23:29:58,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 23:29:58,242 INFO L87 Difference]: Start difference. First operand 15281 states and 21888 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-19 23:29:59,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:29:59,280 INFO L93 Difference]: Finished difference Result 25378 states and 35603 transitions. [2024-11-19 23:29:59,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 23:29:59,281 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 162 [2024-11-19 23:29:59,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:29:59,352 INFO L225 Difference]: With dead ends: 25378 [2024-11-19 23:29:59,352 INFO L226 Difference]: Without dead ends: 16237 [2024-11-19 23:29:59,383 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 23:29:59,384 INFO L432 NwaCegarLoop]: 4179 mSDtfsCounter, 4088 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4088 SdHoareTripleChecker+Valid, 4348 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 23:29:59,384 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4088 Valid, 4348 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 23:29:59,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16237 states. [2024-11-19 23:30:00,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16237 to 16171. [2024-11-19 23:30:00,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16171 states, 14030 states have (on average 1.4168923734853884) internal successors, (19879), 14151 states have internal predecessors, (19879), 1183 states have call successors, (1183), 860 states have call predecessors, (1183), 956 states have return successors, (1736), 1175 states have call predecessors, (1736), 1183 states have call successors, (1736) [2024-11-19 23:30:00,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16171 states to 16171 states and 22798 transitions. [2024-11-19 23:30:00,617 INFO L78 Accepts]: Start accepts. Automaton has 16171 states and 22798 transitions. Word has length 162 [2024-11-19 23:30:00,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:30:00,618 INFO L471 AbstractCegarLoop]: Abstraction has 16171 states and 22798 transitions. [2024-11-19 23:30:00,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-19 23:30:00,618 INFO L276 IsEmpty]: Start isEmpty. Operand 16171 states and 22798 transitions. [2024-11-19 23:30:00,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-19 23:30:00,642 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:30:00,642 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-19 23:30:00,651 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-19 23:30:00,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-19 23:30:00,844 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:30:00,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:30:00,844 INFO L85 PathProgramCache]: Analyzing trace with hash 2057783295, now seen corresponding path program 1 times [2024-11-19 23:30:00,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:30:00,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801562332] [2024-11-19 23:30:00,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:30:00,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:30:00,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:00,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:30:00,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:00,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 23:30:00,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:00,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-19 23:30:00,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:00,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-19 23:30:00,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:00,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-19 23:30:00,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:00,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-19 23:30:00,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:00,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-19 23:30:00,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:00,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-19 23:30:00,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:00,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-19 23:30:00,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:00,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-19 23:30:00,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:01,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-19 23:30:01,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:01,003 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-11-19 23:30:01,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:30:01,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801562332] [2024-11-19 23:30:01,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801562332] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 23:30:01,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1596371666] [2024-11-19 23:30:01,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:30:01,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 23:30:01,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 23:30:01,006 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 23:30:01,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 23:30:01,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:01,124 INFO L255 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 23:30:01,126 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 23:30:01,158 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-19 23:30:01,158 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 23:30:01,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1596371666] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:30:01,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 23:30:01,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-19 23:30:01,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829359154] [2024-11-19 23:30:01,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:30:01,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 23:30:01,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:30:01,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 23:30:01,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 23:30:01,160 INFO L87 Difference]: Start difference. First operand 16171 states and 22798 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-19 23:30:02,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:30:02,176 INFO L93 Difference]: Finished difference Result 43327 states and 59768 transitions. [2024-11-19 23:30:02,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 23:30:02,177 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 163 [2024-11-19 23:30:02,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:30:02,286 INFO L225 Difference]: With dead ends: 43327 [2024-11-19 23:30:02,286 INFO L226 Difference]: Without dead ends: 29295 [2024-11-19 23:30:02,321 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 23:30:02,322 INFO L432 NwaCegarLoop]: 4299 mSDtfsCounter, 144 mSDsluCounter, 4136 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 8435 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 23:30:02,323 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 8435 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 23:30:02,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29295 states. [2024-11-19 23:30:03,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29295 to 29249. [2024-11-19 23:30:03,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29249 states, 25150 states have (on average 1.3727634194831013) internal successors, (34525), 25391 states have internal predecessors, (34525), 2245 states have call successors, (2245), 1660 states have call predecessors, (2245), 1852 states have return successors, (3798), 2229 states have call predecessors, (3798), 2245 states have call successors, (3798) [2024-11-19 23:30:03,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29249 states to 29249 states and 40568 transitions. [2024-11-19 23:30:03,826 INFO L78 Accepts]: Start accepts. Automaton has 29249 states and 40568 transitions. Word has length 163 [2024-11-19 23:30:03,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:30:03,827 INFO L471 AbstractCegarLoop]: Abstraction has 29249 states and 40568 transitions. [2024-11-19 23:30:03,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-19 23:30:03,827 INFO L276 IsEmpty]: Start isEmpty. Operand 29249 states and 40568 transitions. [2024-11-19 23:30:03,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-19 23:30:03,870 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:30:03,870 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-19 23:30:03,879 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-19 23:30:04,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 23:30:04,075 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:30:04,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:30:04,075 INFO L85 PathProgramCache]: Analyzing trace with hash 373119872, now seen corresponding path program 1 times [2024-11-19 23:30:04,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:30:04,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250907854] [2024-11-19 23:30:04,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:30:04,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:30:04,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:04,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:30:04,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:04,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 23:30:04,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:04,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-19 23:30:04,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:04,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-19 23:30:04,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:04,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-19 23:30:04,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:04,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-19 23:30:04,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:04,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-19 23:30:04,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:04,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-19 23:30:04,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:04,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-19 23:30:04,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:04,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-19 23:30:04,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:04,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-19 23:30:04,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:04,243 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-11-19 23:30:04,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:30:04,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250907854] [2024-11-19 23:30:04,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250907854] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 23:30:04,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787093153] [2024-11-19 23:30:04,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:30:04,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 23:30:04,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 23:30:04,247 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 23:30:04,248 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-19 23:30:04,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:04,353 INFO L255 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 23:30:04,355 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 23:30:04,460 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-19 23:30:04,460 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 23:30:04,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1787093153] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:30:04,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 23:30:04,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-19 23:30:04,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082175779] [2024-11-19 23:30:04,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:30:04,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 23:30:04,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:30:04,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 23:30:04,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 23:30:04,463 INFO L87 Difference]: Start difference. First operand 29249 states and 40568 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-19 23:30:06,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:30:06,079 INFO L93 Difference]: Finished difference Result 57681 states and 80264 transitions. [2024-11-19 23:30:06,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 23:30:06,079 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 163 [2024-11-19 23:30:06,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:30:06,198 INFO L225 Difference]: With dead ends: 57681 [2024-11-19 23:30:06,198 INFO L226 Difference]: Without dead ends: 30571 [2024-11-19 23:30:06,268 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 23:30:06,269 INFO L432 NwaCegarLoop]: 4136 mSDtfsCounter, 4071 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4071 SdHoareTripleChecker+Valid, 4169 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 23:30:06,270 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4071 Valid, 4169 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 23:30:06,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30571 states. [2024-11-19 23:30:07,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30571 to 30527. [2024-11-19 23:30:07,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30527 states, 26368 states have (on average 1.3315761529126213) internal successors, (35111), 26609 states have internal predecessors, (35111), 2245 states have call successors, (2245), 1720 states have call predecessors, (2245), 1912 states have return successors, (3754), 2229 states have call predecessors, (3754), 2245 states have call successors, (3754) [2024-11-19 23:30:07,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30527 states to 30527 states and 41110 transitions. [2024-11-19 23:30:07,971 INFO L78 Accepts]: Start accepts. Automaton has 30527 states and 41110 transitions. Word has length 163 [2024-11-19 23:30:07,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:30:07,972 INFO L471 AbstractCegarLoop]: Abstraction has 30527 states and 41110 transitions. [2024-11-19 23:30:07,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-19 23:30:07,972 INFO L276 IsEmpty]: Start isEmpty. Operand 30527 states and 41110 transitions. [2024-11-19 23:30:08,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-19 23:30:08,015 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:30:08,015 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:30:08,024 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-19 23:30:08,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 23:30:08,216 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:30:08,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:30:08,216 INFO L85 PathProgramCache]: Analyzing trace with hash 790570081, now seen corresponding path program 1 times [2024-11-19 23:30:08,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:30:08,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838239016] [2024-11-19 23:30:08,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:30:08,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:30:08,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:08,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:30:08,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:08,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 23:30:08,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:08,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-19 23:30:08,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:08,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-19 23:30:08,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:08,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-19 23:30:08,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:08,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-19 23:30:08,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:08,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-19 23:30:08,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:08,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-19 23:30:08,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:08,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-19 23:30:08,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:08,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-19 23:30:08,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:08,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-19 23:30:08,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:08,382 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-19 23:30:08,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:30:08,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838239016] [2024-11-19 23:30:08,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838239016] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 23:30:08,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1934613610] [2024-11-19 23:30:08,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:30:08,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 23:30:08,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 23:30:08,386 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 23:30:08,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-19 23:30:08,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:08,491 INFO L255 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 23:30:08,494 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 23:30:08,516 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-19 23:30:08,516 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 23:30:08,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1934613610] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:30:08,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 23:30:08,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-19 23:30:08,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691229128] [2024-11-19 23:30:08,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:30:08,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 23:30:08,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:30:08,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 23:30:08,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 23:30:08,518 INFO L87 Difference]: Start difference. First operand 30527 states and 41110 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-19 23:30:11,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:30:11,489 INFO L93 Difference]: Finished difference Result 83033 states and 111042 transitions. [2024-11-19 23:30:11,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 23:30:11,490 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 163 [2024-11-19 23:30:11,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:30:11,720 INFO L225 Difference]: With dead ends: 83033 [2024-11-19 23:30:11,720 INFO L226 Difference]: Without dead ends: 54653 [2024-11-19 23:30:11,792 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 23:30:11,793 INFO L432 NwaCegarLoop]: 4297 mSDtfsCounter, 149 mSDsluCounter, 4135 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 8432 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 23:30:11,793 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 8432 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 23:30:11,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54653 states. [2024-11-19 23:30:15,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54653 to 54651. [2024-11-19 23:30:15,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54651 states, 46784 states have (on average 1.2991834815321477) internal successors, (60781), 47265 states have internal predecessors, (60781), 4265 states have call successors, (4265), 3216 states have call predecessors, (4265), 3600 states have return successors, (8200), 4233 states have call predecessors, (8200), 4265 states have call successors, (8200) [2024-11-19 23:30:15,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54651 states to 54651 states and 73246 transitions. [2024-11-19 23:30:15,321 INFO L78 Accepts]: Start accepts. Automaton has 54651 states and 73246 transitions. Word has length 163 [2024-11-19 23:30:15,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:30:15,321 INFO L471 AbstractCegarLoop]: Abstraction has 54651 states and 73246 transitions. [2024-11-19 23:30:15,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-19 23:30:15,322 INFO L276 IsEmpty]: Start isEmpty. Operand 54651 states and 73246 transitions. [2024-11-19 23:30:15,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-19 23:30:15,374 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:30:15,374 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-19 23:30:15,384 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-19 23:30:15,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-19 23:30:15,574 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:30:15,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:30:15,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1412929672, now seen corresponding path program 1 times [2024-11-19 23:30:15,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:30:15,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990820512] [2024-11-19 23:30:15,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:30:15,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:30:15,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:15,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:30:15,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:15,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 23:30:15,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:15,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-19 23:30:15,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:15,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-19 23:30:15,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:15,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-19 23:30:15,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:15,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-19 23:30:15,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:15,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-19 23:30:15,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:15,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-19 23:30:15,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:15,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-19 23:30:15,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:15,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-19 23:30:15,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:15,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-19 23:30:15,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:15,727 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-19 23:30:15,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:30:15,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990820512] [2024-11-19 23:30:15,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990820512] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 23:30:15,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [904652065] [2024-11-19 23:30:15,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:30:15,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 23:30:15,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 23:30:15,731 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 23:30:15,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-19 23:30:15,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:15,839 INFO L255 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 23:30:15,841 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 23:30:15,889 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-19 23:30:15,889 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 23:30:15,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [904652065] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:30:15,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 23:30:15,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-19 23:30:15,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821217264] [2024-11-19 23:30:15,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:30:15,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 23:30:15,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:30:15,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 23:30:15,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 23:30:15,893 INFO L87 Difference]: Start difference. First operand 54651 states and 73246 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-19 23:30:18,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:30:18,787 INFO L93 Difference]: Finished difference Result 95855 states and 127872 transitions. [2024-11-19 23:30:18,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 23:30:18,788 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 164 [2024-11-19 23:30:18,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:30:19,023 INFO L225 Difference]: With dead ends: 95855 [2024-11-19 23:30:19,023 INFO L226 Difference]: Without dead ends: 56045 [2024-11-19 23:30:19,119 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 23:30:19,120 INFO L432 NwaCegarLoop]: 4169 mSDtfsCounter, 4094 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4094 SdHoareTripleChecker+Valid, 4333 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 23:30:19,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4094 Valid, 4333 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 23:30:19,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56045 states. [2024-11-19 23:30:22,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56045 to 54531. [2024-11-19 23:30:22,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54531 states, 46664 states have (on average 1.290952340133722) internal successors, (60241), 47145 states have internal predecessors, (60241), 4265 states have call successors, (4265), 3216 states have call predecessors, (4265), 3600 states have return successors, (8200), 4233 states have call predecessors, (8200), 4265 states have call successors, (8200) [2024-11-19 23:30:22,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54531 states to 54531 states and 72706 transitions. [2024-11-19 23:30:22,389 INFO L78 Accepts]: Start accepts. Automaton has 54531 states and 72706 transitions. Word has length 164 [2024-11-19 23:30:22,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:30:22,390 INFO L471 AbstractCegarLoop]: Abstraction has 54531 states and 72706 transitions. [2024-11-19 23:30:22,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-19 23:30:22,390 INFO L276 IsEmpty]: Start isEmpty. Operand 54531 states and 72706 transitions. [2024-11-19 23:30:22,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-19 23:30:22,479 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:30:22,480 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:30:22,489 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-19 23:30:22,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-19 23:30:22,682 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:30:22,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:30:22,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1651731176, now seen corresponding path program 1 times [2024-11-19 23:30:22,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:30:22,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431702074] [2024-11-19 23:30:22,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:30:22,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:30:22,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:22,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:30:22,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:22,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 23:30:22,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:22,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-19 23:30:22,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:22,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-19 23:30:22,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:22,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-19 23:30:22,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:22,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-19 23:30:22,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:22,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-19 23:30:22,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:22,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-19 23:30:22,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:22,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-19 23:30:22,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:22,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-19 23:30:22,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:22,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-19 23:30:22,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:22,854 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-19 23:30:22,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:30:22,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431702074] [2024-11-19 23:30:22,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431702074] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 23:30:22,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1925579887] [2024-11-19 23:30:22,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:30:22,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 23:30:22,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 23:30:22,857 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 23:30:22,859 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-19 23:30:22,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:30:22,976 INFO L255 TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 23:30:22,980 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 23:30:23,024 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-19 23:30:23,025 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 23:30:23,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1925579887] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:30:23,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 23:30:23,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-19 23:30:23,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661942657] [2024-11-19 23:30:23,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:30:23,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 23:30:23,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:30:23,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 23:30:23,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 23:30:23,027 INFO L87 Difference]: Start difference. First operand 54531 states and 72706 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9)