./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label46+token_ring.02.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f 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 ../sv-benchmarks/c/combinations/Problem05_label46+token_ring.02.cil-2.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 94e951826a6b890c42a47666caa0401c27bf1b0a09941efa99a0e4bb1e9e9065 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 03:25:20,832 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 03:25:20,921 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 03:25:20,928 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 03:25:20,929 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 03:25:20,950 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 03:25:20,950 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 03:25:20,950 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 03:25:20,951 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 03:25:20,951 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 03:25:20,951 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 03:25:20,952 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 03:25:20,952 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 03:25:20,952 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 03:25:20,953 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 03:25:20,953 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 03:25:20,953 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 03:25:20,953 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 03:25:20,954 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 03:25:20,954 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 03:25:20,954 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 03:25:20,954 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 03:25:20,955 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 03:25:20,955 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 03:25:20,955 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 03:25:20,955 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 03:25:20,956 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 03:25:20,956 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 03:25:20,956 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 03:25:20,956 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 03:25:20,956 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 03:25:20,957 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 03:25:20,957 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 03:25:20,957 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 03:25:20,957 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 03:25:20,957 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 03:25:20,958 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 03:25:20,958 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 03:25:20,958 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 03:25:20,958 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 03:25:20,958 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 03:25:20,959 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 03:25:20,959 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 94e951826a6b890c42a47666caa0401c27bf1b0a09941efa99a0e4bb1e9e9065 [2024-11-22 03:25:21,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 03:25:21,188 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 03:25:21,190 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 03:25:21,192 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 03:25:21,192 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 03:25:21,193 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label46+token_ring.02.cil-2.c [2024-11-22 03:25:22,630 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 03:25:23,232 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 03:25:23,233 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.02.cil-2.c [2024-11-22 03:25:23,290 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/824b61302/d4e8eea048384111b92e27e8a380ce4f/FLAGacd5742df [2024-11-22 03:25:23,738 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/824b61302/d4e8eea048384111b92e27e8a380ce4f [2024-11-22 03:25:23,741 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 03:25:23,742 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 03:25:23,743 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 03:25:23,743 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 03:25:23,748 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 03:25:23,749 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:25:23" (1/1) ... [2024-11-22 03:25:23,752 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57ca9177 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:25:23, skipping insertion in model container [2024-11-22 03:25:23,752 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:25:23" (1/1) ... [2024-11-22 03:25:23,976 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 03:25:25,410 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_label46+token_ring.02.cil-2.c[382357,382370] [2024-11-22 03:25:25,432 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_label46+token_ring.02.cil-2.c[383339,383352] [2024-11-22 03:25:25,553 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 03:25:25,563 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 03:25:26,202 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_label46+token_ring.02.cil-2.c[382357,382370] [2024-11-22 03:25:26,206 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_label46+token_ring.02.cil-2.c[383339,383352] [2024-11-22 03:25:26,213 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 03:25:26,305 INFO L204 MainTranslator]: Completed translation [2024-11-22 03:25:26,305 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:25:26 WrapperNode [2024-11-22 03:25:26,305 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 03:25:26,306 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 03:25:26,307 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 03:25:26,307 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 03:25:26,312 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:25:26" (1/1) ... [2024-11-22 03:25:26,401 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:25:26" (1/1) ... [2024-11-22 03:25:26,803 INFO L138 Inliner]: procedures = 48, calls = 48, calls flagged for inlining = 25, calls inlined = 25, statements flattened = 12639 [2024-11-22 03:25:26,804 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 03:25:26,804 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 03:25:26,804 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 03:25:26,804 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 03:25:26,822 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:25:26" (1/1) ... [2024-11-22 03:25:26,825 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:25:26" (1/1) ... [2024-11-22 03:25:26,885 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:25:26" (1/1) ... [2024-11-22 03:25:26,956 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]. [2024-11-22 03:25:26,956 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:25:26" (1/1) ... [2024-11-22 03:25:26,956 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:25:26" (1/1) ... [2024-11-22 03:25:27,215 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:25:26" (1/1) ... [2024-11-22 03:25:27,347 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:25:26" (1/1) ... [2024-11-22 03:25:27,383 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:25:26" (1/1) ... [2024-11-22 03:25:27,419 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:25:26" (1/1) ... [2024-11-22 03:25:27,510 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 03:25:27,511 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 03:25:27,511 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 03:25:27,511 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 03:25:27,512 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:25:26" (1/1) ... [2024-11-22 03:25:27,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 03:25:27,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:25:27,592 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) [2024-11-22 03:25:27,607 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 [2024-11-22 03:25:27,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 03:25:27,678 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-22 03:25:27,678 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-22 03:25:27,678 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-22 03:25:27,678 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-22 03:25:27,678 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-22 03:25:27,678 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-22 03:25:27,678 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-22 03:25:27,678 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-22 03:25:27,679 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-22 03:25:27,679 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-22 03:25:27,679 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-22 03:25:27,679 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-22 03:25:27,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 03:25:27,679 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-22 03:25:27,679 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-22 03:25:27,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 03:25:27,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 03:25:27,773 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 03:25:27,775 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 03:25:34,951 INFO L? ?]: Removed 1699 outVars from TransFormulas that were not future-live. [2024-11-22 03:25:34,951 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 03:25:35,003 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 03:25:35,004 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-22 03:25:35,004 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:25:35 BoogieIcfgContainer [2024-11-22 03:25:35,005 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 03:25:35,006 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 03:25:35,007 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 03:25:35,009 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 03:25:35,010 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 03:25:23" (1/3) ... [2024-11-22 03:25:35,010 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7257f2cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:25:35, skipping insertion in model container [2024-11-22 03:25:35,010 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:25:26" (2/3) ... [2024-11-22 03:25:35,011 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7257f2cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:25:35, skipping insertion in model container [2024-11-22 03:25:35,011 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:25:35" (3/3) ... [2024-11-22 03:25:35,012 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label46+token_ring.02.cil-2.c [2024-11-22 03:25:35,025 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 03:25:35,026 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-22 03:25:35,134 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 03:25:35,144 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;@3df8af70, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 03:25:35,144 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-22 03:25:35,154 INFO L276 IsEmpty]: Start isEmpty. Operand has 2326 states, 2298 states have (on average 1.8563968668407311) internal successors, (4266), 2303 states have internal predecessors, (4266), 18 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-22 03:25:35,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-22 03:25:35,163 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:25:35,164 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, 1] [2024-11-22 03:25:35,165 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:25:35,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:25:35,169 INFO L85 PathProgramCache]: Analyzing trace with hash 931332088, now seen corresponding path program 1 times [2024-11-22 03:25:35,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:25:35,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178626211] [2024-11-22 03:25:35,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:25:35,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:25:35,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:25:35,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:25:35,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:25:35,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178626211] [2024-11-22 03:25:35,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178626211] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:25:35,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:25:35,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 03:25:35,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658676105] [2024-11-22 03:25:35,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:25:35,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 03:25:35,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:25:35,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 03:25:35,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 03:25:35,548 INFO L87 Difference]: Start difference. First operand has 2326 states, 2298 states have (on average 1.8563968668407311) internal successors, (4266), 2303 states have internal predecessors, (4266), 18 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:25:36,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:25:36,009 INFO L93 Difference]: Finished difference Result 4779 states and 8807 transitions. [2024-11-22 03:25:36,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 03:25:36,011 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 69 [2024-11-22 03:25:36,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:25:36,030 INFO L225 Difference]: With dead ends: 4779 [2024-11-22 03:25:36,031 INFO L226 Difference]: Without dead ends: 2393 [2024-11-22 03:25:36,040 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:25:36,043 INFO L432 NwaCegarLoop]: 4184 mSDtfsCounter, 4343 mSDsluCounter, 8439 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4353 SdHoareTripleChecker+Valid, 12623 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 03:25:36,044 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4353 Valid, 12623 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 03:25:36,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2393 states. [2024-11-22 03:25:36,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2393 to 2382. [2024-11-22 03:25:36,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2382 states, 2338 states have (on average 1.8319076133447392) internal successors, (4283), 2342 states have internal predecessors, (4283), 29 states have call successors, (29), 13 states have call predecessors, (29), 13 states have return successors, (28), 27 states have call predecessors, (28), 27 states have call successors, (28) [2024-11-22 03:25:36,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2382 states to 2382 states and 4340 transitions. [2024-11-22 03:25:36,207 INFO L78 Accepts]: Start accepts. Automaton has 2382 states and 4340 transitions. Word has length 69 [2024-11-22 03:25:36,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:25:36,208 INFO L471 AbstractCegarLoop]: Abstraction has 2382 states and 4340 transitions. [2024-11-22 03:25:36,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:25:36,212 INFO L276 IsEmpty]: Start isEmpty. Operand 2382 states and 4340 transitions. [2024-11-22 03:25:36,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-22 03:25:36,215 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:25:36,215 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, 1] [2024-11-22 03:25:36,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 03:25:36,215 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:25:36,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:25:36,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1034046452, now seen corresponding path program 1 times [2024-11-22 03:25:36,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:25:36,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060670123] [2024-11-22 03:25:36,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:25:36,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:25:36,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:25:36,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:25:36,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:25:36,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060670123] [2024-11-22 03:25:36,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060670123] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:25:36,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:25:36,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:25:36,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803247999] [2024-11-22 03:25:36,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:25:36,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:25:36,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:25:36,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:25:36,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:25:36,427 INFO L87 Difference]: Start difference. First operand 2382 states and 4340 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:25:37,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:25:37,071 INFO L93 Difference]: Finished difference Result 2785 states and 4935 transitions. [2024-11-22 03:25:37,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:25:37,072 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 69 [2024-11-22 03:25:37,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:25:37,092 INFO L225 Difference]: With dead ends: 2785 [2024-11-22 03:25:37,096 INFO L226 Difference]: Without dead ends: 2534 [2024-11-22 03:25:37,098 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 03:25:37,100 INFO L432 NwaCegarLoop]: 4215 mSDtfsCounter, 4265 mSDsluCounter, 12613 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4275 SdHoareTripleChecker+Valid, 16828 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 03:25:37,101 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4275 Valid, 16828 Invalid, 461 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [24 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 03:25:37,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2534 states. [2024-11-22 03:25:37,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2534 to 2499. [2024-11-22 03:25:37,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2499 states, 2437 states have (on average 1.816988100123102) internal successors, (4428), 2442 states have internal predecessors, (4428), 40 states have call successors, (40), 19 states have call predecessors, (40), 20 states have return successors, (42), 39 states have call predecessors, (42), 38 states have call successors, (42) [2024-11-22 03:25:37,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2499 states to 2499 states and 4510 transitions. [2024-11-22 03:25:37,223 INFO L78 Accepts]: Start accepts. Automaton has 2499 states and 4510 transitions. Word has length 69 [2024-11-22 03:25:37,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:25:37,223 INFO L471 AbstractCegarLoop]: Abstraction has 2499 states and 4510 transitions. [2024-11-22 03:25:37,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:25:37,224 INFO L276 IsEmpty]: Start isEmpty. Operand 2499 states and 4510 transitions. [2024-11-22 03:25:37,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-22 03:25:37,229 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:25:37,229 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, 1] [2024-11-22 03:25:37,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 03:25:37,230 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:25:37,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:25:37,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1874135434, now seen corresponding path program 1 times [2024-11-22 03:25:37,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:25:37,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466531018] [2024-11-22 03:25:37,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:25:37,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:25:37,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:25:37,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:25:37,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:25:37,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466531018] [2024-11-22 03:25:37,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466531018] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:25:37,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:25:37,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:25:37,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385521409] [2024-11-22 03:25:37,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:25:37,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:25:37,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:25:37,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:25:37,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:25:37,391 INFO L87 Difference]: Start difference. First operand 2499 states and 4510 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:25:37,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:25:37,913 INFO L93 Difference]: Finished difference Result 3146 states and 5464 transitions. [2024-11-22 03:25:37,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:25:37,917 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 69 [2024-11-22 03:25:37,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:25:37,927 INFO L225 Difference]: With dead ends: 3146 [2024-11-22 03:25:37,927 INFO L226 Difference]: Without dead ends: 2778 [2024-11-22 03:25:37,929 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 03:25:37,930 INFO L432 NwaCegarLoop]: 4116 mSDtfsCounter, 4273 mSDsluCounter, 12387 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4283 SdHoareTripleChecker+Valid, 16503 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 03:25:37,930 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4283 Valid, 16503 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 03:25:37,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2778 states. [2024-11-22 03:25:37,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2778 to 2742. [2024-11-22 03:25:37,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2742 states, 2642 states have (on average 1.7899318697956095) internal successors, (4729), 2651 states have internal predecessors, (4729), 62 states have call successors, (62), 31 states have call predecessors, (62), 36 states have return successors, (76), 63 states have call predecessors, (76), 60 states have call successors, (76) [2024-11-22 03:25:38,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2742 states to 2742 states and 4867 transitions. [2024-11-22 03:25:38,008 INFO L78 Accepts]: Start accepts. Automaton has 2742 states and 4867 transitions. Word has length 69 [2024-11-22 03:25:38,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:25:38,008 INFO L471 AbstractCegarLoop]: Abstraction has 2742 states and 4867 transitions. [2024-11-22 03:25:38,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:25:38,009 INFO L276 IsEmpty]: Start isEmpty. Operand 2742 states and 4867 transitions. [2024-11-22 03:25:38,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-22 03:25:38,010 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:25:38,011 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, 1] [2024-11-22 03:25:38,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 03:25:38,011 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:25:38,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:25:38,012 INFO L85 PathProgramCache]: Analyzing trace with hash -998116428, now seen corresponding path program 1 times [2024-11-22 03:25:38,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:25:38,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79811986] [2024-11-22 03:25:38,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:25:38,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:25:38,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:25:38,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:25:38,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:25:38,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79811986] [2024-11-22 03:25:38,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79811986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:25:38,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:25:38,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:25:38,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107360659] [2024-11-22 03:25:38,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:25:38,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:25:38,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:25:38,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:25:38,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:25:38,108 INFO L87 Difference]: Start difference. First operand 2742 states and 4867 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:25:38,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:25:38,880 INFO L93 Difference]: Finished difference Result 3927 states and 6620 transitions. [2024-11-22 03:25:38,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:25:38,880 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 69 [2024-11-22 03:25:38,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:25:38,893 INFO L225 Difference]: With dead ends: 3927 [2024-11-22 03:25:38,894 INFO L226 Difference]: Without dead ends: 3316 [2024-11-22 03:25:38,896 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 03:25:38,897 INFO L432 NwaCegarLoop]: 4201 mSDtfsCounter, 4264 mSDsluCounter, 12568 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4273 SdHoareTripleChecker+Valid, 16769 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 03:25:38,897 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4273 Valid, 16769 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 03:25:38,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3316 states. [2024-11-22 03:25:38,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3316 to 3188. [2024-11-22 03:25:38,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3188 states, 3010 states have (on average 1.7458471760797343) internal successors, (5255), 3033 states have internal predecessors, (5255), 102 states have call successors, (102), 55 states have call predecessors, (102), 74 states have return successors, (164), 107 states have call predecessors, (164), 100 states have call successors, (164) [2024-11-22 03:25:38,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3188 states to 3188 states and 5521 transitions. [2024-11-22 03:25:38,975 INFO L78 Accepts]: Start accepts. Automaton has 3188 states and 5521 transitions. Word has length 69 [2024-11-22 03:25:38,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:25:38,976 INFO L471 AbstractCegarLoop]: Abstraction has 3188 states and 5521 transitions. [2024-11-22 03:25:38,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:25:38,976 INFO L276 IsEmpty]: Start isEmpty. Operand 3188 states and 5521 transitions. [2024-11-22 03:25:38,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-22 03:25:38,977 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:25:38,978 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, 1] [2024-11-22 03:25:38,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 03:25:38,978 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:25:38,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:25:38,978 INFO L85 PathProgramCache]: Analyzing trace with hash 540223602, now seen corresponding path program 1 times [2024-11-22 03:25:38,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:25:38,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395004691] [2024-11-22 03:25:38,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:25:38,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:25:38,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:25:39,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:25:39,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:25:39,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395004691] [2024-11-22 03:25:39,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395004691] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:25:39,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:25:39,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:25:39,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974653688] [2024-11-22 03:25:39,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:25:39,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:25:39,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:25:39,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:25:39,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:25:39,058 INFO L87 Difference]: Start difference. First operand 3188 states and 5521 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:25:39,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:25:39,463 INFO L93 Difference]: Finished difference Result 5289 states and 8664 transitions. [2024-11-22 03:25:39,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:25:39,464 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 69 [2024-11-22 03:25:39,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:25:39,481 INFO L225 Difference]: With dead ends: 5289 [2024-11-22 03:25:39,482 INFO L226 Difference]: Without dead ends: 4232 [2024-11-22 03:25:39,487 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 03:25:39,487 INFO L432 NwaCegarLoop]: 4199 mSDtfsCounter, 4261 mSDsluCounter, 12562 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4274 SdHoareTripleChecker+Valid, 16761 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 03:25:39,488 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4274 Valid, 16761 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 03:25:39,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4232 states. [2024-11-22 03:25:39,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4232 to 4135. [2024-11-22 03:25:39,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4135 states, 3787 states have (on average 1.68127805650911) internal successors, (6367), 3856 states have internal predecessors, (6367), 178 states have call successors, (178), 103 states have call predecessors, (178), 168 states have return successors, (432), 191 states have call predecessors, (432), 176 states have call successors, (432) [2024-11-22 03:25:39,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4135 states to 4135 states and 6977 transitions. [2024-11-22 03:25:39,741 INFO L78 Accepts]: Start accepts. Automaton has 4135 states and 6977 transitions. Word has length 69 [2024-11-22 03:25:39,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:25:39,743 INFO L471 AbstractCegarLoop]: Abstraction has 4135 states and 6977 transitions. [2024-11-22 03:25:39,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:25:39,744 INFO L276 IsEmpty]: Start isEmpty. Operand 4135 states and 6977 transitions. [2024-11-22 03:25:39,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-22 03:25:39,750 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:25:39,750 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, 1] [2024-11-22 03:25:39,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 03:25:39,751 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:25:39,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:25:39,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1488362508, now seen corresponding path program 1 times [2024-11-22 03:25:39,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:25:39,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114489456] [2024-11-22 03:25:39,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:25:39,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:25:39,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:25:39,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:25:39,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:25:39,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114489456] [2024-11-22 03:25:39,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114489456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:25:39,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:25:39,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 03:25:39,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186243146] [2024-11-22 03:25:39,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:25:39,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 03:25:39,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:25:39,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 03:25:39,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 03:25:39,792 INFO L87 Difference]: Start difference. First operand 4135 states and 6977 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:25:39,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:25:39,971 INFO L93 Difference]: Finished difference Result 7203 states and 11638 transitions. [2024-11-22 03:25:39,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 03:25:39,971 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 69 [2024-11-22 03:25:39,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:25:39,991 INFO L225 Difference]: With dead ends: 7203 [2024-11-22 03:25:39,991 INFO L226 Difference]: Without dead ends: 5200 [2024-11-22 03:25:39,999 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 03:25:40,000 INFO L432 NwaCegarLoop]: 4309 mSDtfsCounter, 4283 mSDsluCounter, 4248 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4283 SdHoareTripleChecker+Valid, 8557 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 03:25:40,000 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4283 Valid, 8557 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 03:25:40,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5200 states. [2024-11-22 03:25:40,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5200 to 5119. [2024-11-22 03:25:40,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5119 states, 4601 states have (on average 1.6246468159095848) internal successors, (7475), 4699 states have internal predecessors, (7475), 274 states have call successors, (274), 157 states have call predecessors, (274), 242 states have return successors, (585), 278 states have call predecessors, (585), 272 states have call successors, (585) [2024-11-22 03:25:40,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5119 states to 5119 states and 8334 transitions. [2024-11-22 03:25:40,235 INFO L78 Accepts]: Start accepts. Automaton has 5119 states and 8334 transitions. Word has length 69 [2024-11-22 03:25:40,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:25:40,236 INFO L471 AbstractCegarLoop]: Abstraction has 5119 states and 8334 transitions. [2024-11-22 03:25:40,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:25:40,236 INFO L276 IsEmpty]: Start isEmpty. Operand 5119 states and 8334 transitions. [2024-11-22 03:25:40,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-22 03:25:40,246 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:25:40,247 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, 1] [2024-11-22 03:25:40,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 03:25:40,247 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:25:40,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:25:40,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1912897413, now seen corresponding path program 1 times [2024-11-22 03:25:40,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:25:40,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799827841] [2024-11-22 03:25:40,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:25:40,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:25:40,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:25:40,327 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-22 03:25:40,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:25:40,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799827841] [2024-11-22 03:25:40,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799827841] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 03:25:40,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1393631333] [2024-11-22 03:25:40,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:25:40,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:25:40,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:25:40,333 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) [2024-11-22 03:25:40,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 03:25:40,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:25:40,421 INFO L255 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 03:25:40,427 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 03:25:40,540 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-22 03:25:40,541 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 03:25:40,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1393631333] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:25:40,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 03:25:40,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-22 03:25:40,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108087656] [2024-11-22 03:25:40,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:25:40,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:25:40,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:25:40,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:25:40,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:25:40,548 INFO L87 Difference]: Start difference. First operand 5119 states and 8334 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 03:25:40,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:25:40,988 INFO L93 Difference]: Finished difference Result 10950 states and 16924 transitions. [2024-11-22 03:25:40,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:25:40,989 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 112 [2024-11-22 03:25:40,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:25:41,022 INFO L225 Difference]: With dead ends: 10950 [2024-11-22 03:25:41,022 INFO L226 Difference]: Without dead ends: 7963 [2024-11-22 03:25:41,034 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:25:41,035 INFO L432 NwaCegarLoop]: 4153 mSDtfsCounter, 4112 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4112 SdHoareTripleChecker+Valid, 4326 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 [2024-11-22 03:25:41,035 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4112 Valid, 4326 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:25:41,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7963 states. [2024-11-22 03:25:41,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7963 to 7907. [2024-11-22 03:25:41,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7907 states, 6913 states have (on average 1.5538839866917402) internal successors, (10742), 7106 states have internal predecessors, (10742), 512 states have call successors, (512), 309 states have call predecessors, (512), 480 states have return successors, (1121), 507 states have call predecessors, (1121), 510 states have call successors, (1121) [2024-11-22 03:25:41,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7907 states to 7907 states and 12375 transitions. [2024-11-22 03:25:41,520 INFO L78 Accepts]: Start accepts. Automaton has 7907 states and 12375 transitions. Word has length 112 [2024-11-22 03:25:41,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:25:41,521 INFO L471 AbstractCegarLoop]: Abstraction has 7907 states and 12375 transitions. [2024-11-22 03:25:41,522 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 03:25:41,522 INFO L276 IsEmpty]: Start isEmpty. Operand 7907 states and 12375 transitions. [2024-11-22 03:25:41,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-22 03:25:41,531 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:25:41,531 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, 1] [2024-11-22 03:25:41,538 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 03:25:41,731 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 [2024-11-22 03:25:41,732 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:25:41,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:25:41,732 INFO L85 PathProgramCache]: Analyzing trace with hash 482611867, now seen corresponding path program 1 times [2024-11-22 03:25:41,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:25:41,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532099206] [2024-11-22 03:25:41,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:25:41,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:25:41,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:25:41,786 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-22 03:25:41,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:25:41,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532099206] [2024-11-22 03:25:41,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532099206] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 03:25:41,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [236998923] [2024-11-22 03:25:41,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:25:41,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:25:41,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:25:41,789 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) [2024-11-22 03:25:41,793 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 03:25:41,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:25:41,871 INFO L255 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 03:25:41,873 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 03:25:41,897 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-22 03:25:41,898 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 03:25:41,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [236998923] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:25:41,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 03:25:41,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-22 03:25:41,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754936870] [2024-11-22 03:25:41,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:25:41,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:25:41,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:25:41,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:25:41,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:25:41,900 INFO L87 Difference]: Start difference. First operand 7907 states and 12375 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-22 03:25:42,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:25:42,221 INFO L93 Difference]: Finished difference Result 19041 states and 28859 transitions. [2024-11-22 03:25:42,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:25:42,222 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), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 112 [2024-11-22 03:25:42,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:25:42,269 INFO L225 Difference]: With dead ends: 19041 [2024-11-22 03:25:42,270 INFO L226 Difference]: Without dead ends: 13267 [2024-11-22 03:25:42,290 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:25:42,291 INFO L432 NwaCegarLoop]: 4315 mSDtfsCounter, 156 mSDsluCounter, 4151 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 8466 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 [2024-11-22 03:25:42,291 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 8466 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:25:42,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13267 states. [2024-11-22 03:25:42,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13267 to 13267. [2024-11-22 03:25:42,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13267 states, 11336 states have (on average 1.4900317572335922) internal successors, (16891), 11702 states have internal predecessors, (16891), 977 states have call successors, (977), 609 states have call predecessors, (977), 952 states have return successors, (2348), 987 states have call predecessors, (2348), 975 states have call successors, (2348) [2024-11-22 03:25:42,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13267 states to 13267 states and 20216 transitions. [2024-11-22 03:25:42,914 INFO L78 Accepts]: Start accepts. Automaton has 13267 states and 20216 transitions. Word has length 112 [2024-11-22 03:25:42,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:25:42,916 INFO L471 AbstractCegarLoop]: Abstraction has 13267 states and 20216 transitions. [2024-11-22 03:25:42,916 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), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-22 03:25:42,916 INFO L276 IsEmpty]: Start isEmpty. Operand 13267 states and 20216 transitions. [2024-11-22 03:25:42,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-22 03:25:42,947 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:25:42,947 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, 1] [2024-11-22 03:25:42,958 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-22 03:25:43,148 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 [2024-11-22 03:25:43,149 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:25:43,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:25:43,149 INFO L85 PathProgramCache]: Analyzing trace with hash 918900513, now seen corresponding path program 1 times [2024-11-22 03:25:43,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:25:43,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430851897] [2024-11-22 03:25:43,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:25:43,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:25:43,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:25:43,230 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-22 03:25:43,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:25:43,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430851897] [2024-11-22 03:25:43,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430851897] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 03:25:43,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886725861] [2024-11-22 03:25:43,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:25:43,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:25:43,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:25:43,235 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) [2024-11-22 03:25:43,239 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 03:25:43,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:25:43,340 INFO L255 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 03:25:43,346 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 03:25:43,464 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-22 03:25:43,464 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 03:25:43,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [886725861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:25:43,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 03:25:43,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-22 03:25:43,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26437203] [2024-11-22 03:25:43,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:25:43,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:25:43,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:25:43,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:25:43,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:25:43,467 INFO L87 Difference]: Start difference. First operand 13267 states and 20216 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, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 03:25:44,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:25:44,469 INFO L93 Difference]: Finished difference Result 35095 states and 52393 transitions. [2024-11-22 03:25:44,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:25:44,469 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, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 145 [2024-11-22 03:25:44,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:25:44,576 INFO L225 Difference]: With dead ends: 35095 [2024-11-22 03:25:44,577 INFO L226 Difference]: Without dead ends: 23965 [2024-11-22 03:25:44,624 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:25:44,626 INFO L432 NwaCegarLoop]: 4173 mSDtfsCounter, 4069 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4069 SdHoareTripleChecker+Valid, 4346 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 [2024-11-22 03:25:44,626 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4069 Valid, 4346 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:25:44,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23965 states. [2024-11-22 03:25:45,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23965 to 23753. [2024-11-22 03:25:45,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23753 states, 19994 states have (on average 1.447884365309593) internal successors, (28949), 20722 states have internal predecessors, (28949), 1871 states have call successors, (1871), 1199 states have call predecessors, (1871), 1886 states have return successors, (4542), 1863 states have call predecessors, (4542), 1869 states have call successors, (4542) [2024-11-22 03:25:45,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23753 states to 23753 states and 35362 transitions. [2024-11-22 03:25:45,893 INFO L78 Accepts]: Start accepts. Automaton has 23753 states and 35362 transitions. Word has length 145 [2024-11-22 03:25:45,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:25:45,894 INFO L471 AbstractCegarLoop]: Abstraction has 23753 states and 35362 transitions. [2024-11-22 03:25:45,895 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, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 03:25:45,895 INFO L276 IsEmpty]: Start isEmpty. Operand 23753 states and 35362 transitions. [2024-11-22 03:25:45,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-22 03:25:45,955 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:25:45,955 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, 1] [2024-11-22 03:25:45,963 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 03:25:46,159 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 [2024-11-22 03:25:46,160 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:25:46,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:25:46,160 INFO L85 PathProgramCache]: Analyzing trace with hash -714352319, now seen corresponding path program 1 times [2024-11-22 03:25:46,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:25:46,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035315657] [2024-11-22 03:25:46,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:25:46,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:25:46,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:25:46,228 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-11-22 03:25:46,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:25:46,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035315657] [2024-11-22 03:25:46,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035315657] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 03:25:46,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1146187657] [2024-11-22 03:25:46,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:25:46,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:25:46,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:25:46,232 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) [2024-11-22 03:25:46,234 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 03:25:46,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:25:46,321 INFO L255 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 03:25:46,324 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 03:25:46,407 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-22 03:25:46,409 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 03:25:46,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1146187657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:25:46,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 03:25:46,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-22 03:25:46,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410720347] [2024-11-22 03:25:46,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:25:46,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:25:46,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:25:46,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:25:46,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:25:46,411 INFO L87 Difference]: Start difference. First operand 23753 states and 35362 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 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) [2024-11-22 03:25:47,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:25:47,163 INFO L93 Difference]: Finished difference Result 47805 states and 72824 transitions. [2024-11-22 03:25:47,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:25:47,163 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 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 163 [2024-11-22 03:25:47,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:25:47,249 INFO L225 Difference]: With dead ends: 47805 [2024-11-22 03:25:47,250 INFO L226 Difference]: Without dead ends: 26187 [2024-11-22 03:25:47,305 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:25:47,305 INFO L432 NwaCegarLoop]: 4150 mSDtfsCounter, 4087 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4087 SdHoareTripleChecker+Valid, 4184 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 [2024-11-22 03:25:47,306 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4087 Valid, 4184 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:25:47,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26187 states. [2024-11-22 03:25:48,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26187 to 26187. [2024-11-22 03:25:48,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26187 states, 22216 states have (on average 1.3978664025927259) internal successors, (31055), 22944 states have internal predecessors, (31055), 1925 states have call successors, (1925), 1357 states have call predecessors, (1925), 2044 states have return successors, (4610), 1917 states have call predecessors, (4610), 1923 states have call successors, (4610) [2024-11-22 03:25:48,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26187 states to 26187 states and 37590 transitions. [2024-11-22 03:25:48,748 INFO L78 Accepts]: Start accepts. Automaton has 26187 states and 37590 transitions. Word has length 163 [2024-11-22 03:25:48,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:25:48,749 INFO L471 AbstractCegarLoop]: Abstraction has 26187 states and 37590 transitions. [2024-11-22 03:25:48,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 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) [2024-11-22 03:25:48,752 INFO L276 IsEmpty]: Start isEmpty. Operand 26187 states and 37590 transitions. [2024-11-22 03:25:48,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-22 03:25:48,883 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:25:48,883 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, 1] [2024-11-22 03:25:48,892 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-22 03:25:49,084 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 [2024-11-22 03:25:49,084 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:25:49,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:25:49,085 INFO L85 PathProgramCache]: Analyzing trace with hash 615881296, now seen corresponding path program 1 times [2024-11-22 03:25:49,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:25:49,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950963030] [2024-11-22 03:25:49,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:25:49,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:25:49,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:25:49,205 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-11-22 03:25:49,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:25:49,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950963030] [2024-11-22 03:25:49,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950963030] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 03:25:49,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1056092832] [2024-11-22 03:25:49,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:25:49,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:25:49,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:25:49,209 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) [2024-11-22 03:25:49,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 03:25:49,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:25:49,304 INFO L255 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 03:25:49,308 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 03:25:49,397 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-22 03:25:49,399 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 03:25:49,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1056092832] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:25:49,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 03:25:49,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-22 03:25:49,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973973097] [2024-11-22 03:25:49,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:25:49,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:25:49,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:25:49,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:25:49,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:25:49,403 INFO L87 Difference]: Start difference. First operand 26187 states and 37590 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, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 03:25:50,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:25:50,424 INFO L93 Difference]: Finished difference Result 42217 states and 60551 transitions. [2024-11-22 03:25:50,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:25:50,425 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, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 163 [2024-11-22 03:25:50,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:25:50,508 INFO L225 Difference]: With dead ends: 42217 [2024-11-22 03:25:50,508 INFO L226 Difference]: Without dead ends: 22697 [2024-11-22 03:25:50,555 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:25:50,557 INFO L432 NwaCegarLoop]: 4149 mSDtfsCounter, 4102 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4102 SdHoareTripleChecker+Valid, 4182 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 [2024-11-22 03:25:50,557 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4102 Valid, 4182 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:25:50,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22697 states. [2024-11-22 03:25:51,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22697 to 17105. [2024-11-22 03:25:51,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17105 states, 14834 states have (on average 1.385668059862478) internal successors, (20555), 15068 states have internal predecessors, (20555), 1185 states have call successors, (1185), 877 states have call predecessors, (1185), 1084 states have return successors, (1942), 1175 states have call predecessors, (1942), 1183 states have call successors, (1942) [2024-11-22 03:25:51,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17105 states to 17105 states and 23682 transitions. [2024-11-22 03:25:51,839 INFO L78 Accepts]: Start accepts. Automaton has 17105 states and 23682 transitions. Word has length 163 [2024-11-22 03:25:51,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:25:51,839 INFO L471 AbstractCegarLoop]: Abstraction has 17105 states and 23682 transitions. [2024-11-22 03:25:51,839 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, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 03:25:51,840 INFO L276 IsEmpty]: Start isEmpty. Operand 17105 states and 23682 transitions. [2024-11-22 03:25:51,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-22 03:25:51,861 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:25:51,861 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, 1] [2024-11-22 03:25:51,869 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-22 03:25:52,062 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 [2024-11-22 03:25:52,063 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:25:52,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:25:52,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1230369358, now seen corresponding path program 1 times [2024-11-22 03:25:52,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:25:52,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797442362] [2024-11-22 03:25:52,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:25:52,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:25:52,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:25:52,133 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-11-22 03:25:52,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:25:52,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797442362] [2024-11-22 03:25:52,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797442362] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 03:25:52,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2144203720] [2024-11-22 03:25:52,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:25:52,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:25:52,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:25:52,136 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) [2024-11-22 03:25:52,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-22 03:25:52,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:25:52,230 INFO L255 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 03:25:52,232 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 03:25:52,266 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-22 03:25:52,267 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 03:25:52,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2144203720] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:25:52,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 03:25:52,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-22 03:25:52,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985749437] [2024-11-22 03:25:52,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:25:52,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:25:52,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:25:52,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:25:52,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:25:52,270 INFO L87 Difference]: Start difference. First operand 17105 states and 23682 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, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-22 03:25:52,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:25:52,969 INFO L93 Difference]: Finished difference Result 28464 states and 38556 transitions. [2024-11-22 03:25:52,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:25:52,970 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, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 163 [2024-11-22 03:25:52,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:25:53,037 INFO L225 Difference]: With dead ends: 28464 [2024-11-22 03:25:53,037 INFO L226 Difference]: Without dead ends: 18039 [2024-11-22 03:25:53,061 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:25:53,061 INFO L432 NwaCegarLoop]: 4185 mSDtfsCounter, 4085 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4085 SdHoareTripleChecker+Valid, 4362 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 [2024-11-22 03:25:53,062 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4085 Valid, 4362 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:25:53,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18039 states. [2024-11-22 03:25:53,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18039 to 17929. [2024-11-22 03:25:53,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17929 states, 15614 states have (on average 1.3634558729345458) internal successors, (21289), 15848 states have internal predecessors, (21289), 1185 states have call successors, (1185), 921 states have call predecessors, (1185), 1128 states have return successors, (1986), 1175 states have call predecessors, (1986), 1183 states have call successors, (1986) [2024-11-22 03:25:53,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17929 states to 17929 states and 24460 transitions. [2024-11-22 03:25:53,964 INFO L78 Accepts]: Start accepts. Automaton has 17929 states and 24460 transitions. Word has length 163 [2024-11-22 03:25:53,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:25:53,964 INFO L471 AbstractCegarLoop]: Abstraction has 17929 states and 24460 transitions. [2024-11-22 03:25:53,965 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, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-22 03:25:53,965 INFO L276 IsEmpty]: Start isEmpty. Operand 17929 states and 24460 transitions. [2024-11-22 03:25:53,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-22 03:25:53,983 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:25:53,984 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, 1] [2024-11-22 03:25:53,992 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-22 03:25:54,184 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 [2024-11-22 03:25:54,185 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:25:54,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:25:54,185 INFO L85 PathProgramCache]: Analyzing trace with hash 916086420, now seen corresponding path program 1 times [2024-11-22 03:25:54,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:25:54,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474953033] [2024-11-22 03:25:54,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:25:54,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:25:54,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:25:54,260 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-11-22 03:25:54,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:25:54,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474953033] [2024-11-22 03:25:54,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474953033] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 03:25:54,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [502881775] [2024-11-22 03:25:54,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:25:54,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:25:54,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:25:54,264 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) [2024-11-22 03:25:54,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-22 03:25:54,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:25:54,356 INFO L255 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 03:25:54,358 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 03:25:54,379 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-22 03:25:54,379 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 03:25:54,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [502881775] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:25:54,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 03:25:54,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-22 03:25:54,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145464521] [2024-11-22 03:25:54,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:25:54,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:25:54,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:25:54,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:25:54,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:25:54,381 INFO L87 Difference]: Start difference. First operand 17929 states and 24460 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, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-22 03:25:55,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:25:55,433 INFO L93 Difference]: Finished difference Result 47247 states and 63142 transitions. [2024-11-22 03:25:55,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:25:55,434 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, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 164 [2024-11-22 03:25:55,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:25:55,519 INFO L225 Difference]: With dead ends: 47247 [2024-11-22 03:25:55,520 INFO L226 Difference]: Without dead ends: 31457 [2024-11-22 03:25:55,543 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:25:55,544 INFO L432 NwaCegarLoop]: 4312 mSDtfsCounter, 151 mSDsluCounter, 4141 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 8453 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 [2024-11-22 03:25:55,544 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 8453 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:25:55,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31457 states. [2024-11-22 03:25:57,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31457 to 31453. [2024-11-22 03:25:57,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31453 states, 27068 states have (on average 1.321745234224915) internal successors, (35777), 27534 states have internal predecessors, (35777), 2247 states have call successors, (2247), 1721 states have call predecessors, (2247), 2136 states have return successors, (4298), 2229 states have call predecessors, (4298), 2245 states have call successors, (4298) [2024-11-22 03:25:57,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31453 states to 31453 states and 42322 transitions. [2024-11-22 03:25:57,201 INFO L78 Accepts]: Start accepts. Automaton has 31453 states and 42322 transitions. Word has length 164 [2024-11-22 03:25:57,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:25:57,201 INFO L471 AbstractCegarLoop]: Abstraction has 31453 states and 42322 transitions. [2024-11-22 03:25:57,201 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, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-22 03:25:57,202 INFO L276 IsEmpty]: Start isEmpty. Operand 31453 states and 42322 transitions. [2024-11-22 03:25:57,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-22 03:25:57,250 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:25:57,251 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, 1, 1, 1] [2024-11-22 03:25:57,262 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-22 03:25:57,451 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 [2024-11-22 03:25:57,452 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:25:57,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:25:57,453 INFO L85 PathProgramCache]: Analyzing trace with hash 122742823, now seen corresponding path program 1 times [2024-11-22 03:25:57,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:25:57,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039771890] [2024-11-22 03:25:57,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:25:57,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:25:57,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:25:57,543 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-22 03:25:57,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:25:57,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039771890] [2024-11-22 03:25:57,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039771890] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 03:25:57,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [963402093] [2024-11-22 03:25:57,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:25:57,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:25:57,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:25:57,547 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) [2024-11-22 03:25:57,552 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-22 03:25:57,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:25:57,651 INFO L255 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 03:25:57,653 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 03:25:57,668 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-22 03:25:57,668 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 03:25:57,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [963402093] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:25:57,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 03:25:57,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-22 03:25:57,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986761706] [2024-11-22 03:25:57,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:25:57,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:25:57,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:25:57,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:25:57,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:25:57,670 INFO L87 Difference]: Start difference. First operand 31453 states and 42322 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-22 03:25:59,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:25:59,977 INFO L93 Difference]: Finished difference Result 85811 states and 114718 transitions. [2024-11-22 03:25:59,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:25:59,977 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 165 [2024-11-22 03:25:59,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:26:00,280 INFO L225 Difference]: With dead ends: 85811 [2024-11-22 03:26:00,280 INFO L226 Difference]: Without dead ends: 56505 [2024-11-22 03:26:00,323 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:26:00,325 INFO L432 NwaCegarLoop]: 4318 mSDtfsCounter, 160 mSDsluCounter, 4145 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 8463 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 [2024-11-22 03:26:00,325 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 8463 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:26:00,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56505 states. [2024-11-22 03:26:03,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56505 to 56501. [2024-11-22 03:26:03,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56501 states, 48184 states have (on average 1.2899095135314627) internal successors, (62153), 49114 states have internal predecessors, (62153), 4267 states have call successors, (4267), 3217 states have call predecessors, (4267), 4048 states have return successors, (9288), 4233 states have call predecessors, (9288), 4265 states have call successors, (9288) [2024-11-22 03:26:03,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56501 states to 56501 states and 75708 transitions. [2024-11-22 03:26:03,225 INFO L78 Accepts]: Start accepts. Automaton has 56501 states and 75708 transitions. Word has length 165 [2024-11-22 03:26:03,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:26:03,225 INFO L471 AbstractCegarLoop]: Abstraction has 56501 states and 75708 transitions. [2024-11-22 03:26:03,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-22 03:26:03,226 INFO L276 IsEmpty]: Start isEmpty. Operand 56501 states and 75708 transitions. [2024-11-22 03:26:03,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-22 03:26:03,289 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:26:03,289 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, 1] [2024-11-22 03:26:03,298 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-22 03:26:03,490 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 [2024-11-22 03:26:03,494 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:26:03,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:26:03,495 INFO L85 PathProgramCache]: Analyzing trace with hash -458857079, now seen corresponding path program 1 times [2024-11-22 03:26:03,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:26:03,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911673947] [2024-11-22 03:26:03,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:26:03,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:26:03,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:26:03,614 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-22 03:26:03,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:26:03,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911673947] [2024-11-22 03:26:03,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911673947] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 03:26:03,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [71965959] [2024-11-22 03:26:03,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:26:03,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:26:03,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:26:03,621 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) [2024-11-22 03:26:03,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-22 03:26:03,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:26:03,707 INFO L255 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 03:26:03,709 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 03:26:03,744 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-22 03:26:03,745 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 03:26:03,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [71965959] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:26:03,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 03:26:03,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-22 03:26:03,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919998603] [2024-11-22 03:26:03,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:26:03,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:26:03,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:26:03,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:26:03,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:26:03,747 INFO L87 Difference]: Start difference. First operand 56501 states and 75708 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, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-22 03:26:06,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:26:06,092 INFO L93 Difference]: Finished difference Result 99085 states and 132162 transitions. [2024-11-22 03:26:06,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:26:06,093 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, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 165 [2024-11-22 03:26:06,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:26:06,345 INFO L225 Difference]: With dead ends: 99085 [2024-11-22 03:26:06,346 INFO L226 Difference]: Without dead ends: 57897 [2024-11-22 03:26:06,430 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:26:06,431 INFO L432 NwaCegarLoop]: 4175 mSDtfsCounter, 4105 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4105 SdHoareTripleChecker+Valid, 4350 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 [2024-11-22 03:26:06,431 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4105 Valid, 4350 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:26:06,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57897 states.