./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label41+token_ring.03.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label41+token_ring.03.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 f1e5a0d04cda68be8a659e3f7c3c8d0a5df6c0732a10757201346fc85875f569 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-19 23:17:47,040 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 23:17:47,108 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 23:17:47,112 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 23:17:47,113 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 23:17:47,127 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 23:17:47,128 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 23:17:47,128 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 23:17:47,128 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 23:17:47,129 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 23:17:47,129 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 23:17:47,129 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 23:17:47,130 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 23:17:47,131 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 23:17:47,131 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 23:17:47,131 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 23:17:47,132 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 23:17:47,132 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 23:17:47,134 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 23:17:47,134 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 23:17:47,134 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 23:17:47,135 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 23:17:47,135 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 23:17:47,135 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 23:17:47,138 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 23:17:47,139 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 23:17:47,139 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 23:17:47,139 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 23:17:47,139 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 23:17:47,139 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 23:17:47,139 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 23:17:47,140 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 23:17:47,140 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 23:17:47,140 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 23:17:47,140 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 23:17:47,140 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 23:17:47,140 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 23:17:47,140 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 23:17:47,141 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 23:17:47,141 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 23:17:47,141 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 23:17:47,141 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 23:17:47,142 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1e5a0d04cda68be8a659e3f7c3c8d0a5df6c0732a10757201346fc85875f569 [2024-11-19 23:17:47,346 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 23:17:47,369 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 23:17:47,371 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 23:17:47,372 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 23:17:47,373 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 23:17:47,374 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label41+token_ring.03.cil-2.c [2024-11-19 23:17:48,652 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 23:17:49,120 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 23:17:49,121 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label41+token_ring.03.cil-2.c [2024-11-19 23:17:49,168 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9dac1a316/1fcdc0927228494e91a581898b999d34/FLAG169ccb2c7 [2024-11-19 23:17:49,225 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9dac1a316/1fcdc0927228494e91a581898b999d34 [2024-11-19 23:17:49,227 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 23:17:49,230 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 23:17:49,232 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 23:17:49,232 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 23:17:49,237 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 23:17:49,237 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:17:49" (1/1) ... [2024-11-19 23:17:49,238 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60b533dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:17:49, skipping insertion in model container [2024-11-19 23:17:49,238 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:17:49" (1/1) ... [2024-11-19 23:17:49,382 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 23:17:50,746 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_label41+token_ring.03.cil-2.c[376251,376264] [2024-11-19 23:17:50,772 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_label41+token_ring.03.cil-2.c[383339,383352] [2024-11-19 23:17:50,893 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 23:17:50,902 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 23:17:51,450 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_label41+token_ring.03.cil-2.c[376251,376264] [2024-11-19 23:17:51,459 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_label41+token_ring.03.cil-2.c[383339,383352] [2024-11-19 23:17:51,467 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 23:17:51,520 INFO L204 MainTranslator]: Completed translation [2024-11-19 23:17:51,521 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:17:51 WrapperNode [2024-11-19 23:17:51,521 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 23:17:51,522 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 23:17:51,522 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 23:17:51,522 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 23:17:51,527 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:17:51" (1/1) ... [2024-11-19 23:17:51,644 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:17:51" (1/1) ... [2024-11-19 23:17:51,948 INFO L138 Inliner]: procedures = 50, calls = 50, calls flagged for inlining = 28, calls inlined = 28, statements flattened = 12693 [2024-11-19 23:17:51,949 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 23:17:51,950 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 23:17:51,950 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 23:17:51,950 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 23:17:51,959 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:17:51" (1/1) ... [2024-11-19 23:17:51,959 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:17:51" (1/1) ... [2024-11-19 23:17:52,059 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:17:51" (1/1) ... [2024-11-19 23:17:52,154 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-19 23:17:52,155 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:17:51" (1/1) ... [2024-11-19 23:17:52,155 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:17:51" (1/1) ... [2024-11-19 23:17:52,304 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:17:51" (1/1) ... [2024-11-19 23:17:52,350 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:17:51" (1/1) ... [2024-11-19 23:17:52,377 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:17:51" (1/1) ... [2024-11-19 23:17:52,397 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:17:51" (1/1) ... [2024-11-19 23:17:52,463 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 23:17:52,464 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 23:17:52,468 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 23:17:52,468 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 23:17:52,469 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:17:51" (1/1) ... [2024-11-19 23:17:52,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 23:17:52,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 23:17:52,500 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 23:17:52,502 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 23:17:52,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 23:17:52,545 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-19 23:17:52,545 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-19 23:17:52,546 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-19 23:17:52,547 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-19 23:17:52,547 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-19 23:17:52,547 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-19 23:17:52,547 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-19 23:17:52,547 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-19 23:17:52,547 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-19 23:17:52,547 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-19 23:17:52,547 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-19 23:17:52,548 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-19 23:17:52,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 23:17:52,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 23:17:52,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 23:17:52,641 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 23:17:52,643 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 23:17:58,829 INFO L? ?]: Removed 1701 outVars from TransFormulas that were not future-live. [2024-11-19 23:17:58,830 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 23:17:58,885 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 23:17:58,886 INFO L316 CfgBuilder]: Removed 7 assume(true) statements. [2024-11-19 23:17:58,886 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:17:58 BoogieIcfgContainer [2024-11-19 23:17:58,887 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 23:17:58,889 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 23:17:58,889 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 23:17:58,892 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 23:17:58,893 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 11:17:49" (1/3) ... [2024-11-19 23:17:58,894 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fafd55d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:17:58, skipping insertion in model container [2024-11-19 23:17:58,894 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:17:51" (2/3) ... [2024-11-19 23:17:58,895 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fafd55d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:17:58, skipping insertion in model container [2024-11-19 23:17:58,895 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:17:58" (3/3) ... [2024-11-19 23:17:58,896 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label41+token_ring.03.cil-2.c [2024-11-19 23:17:58,912 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 23:17:58,913 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-19 23:17:59,039 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 23:17:59,046 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;@274da45e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 23:17:59,047 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-19 23:17:59,061 INFO L276 IsEmpty]: Start isEmpty. Operand has 2344 states, 2318 states have (on average 1.8541846419327006) internal successors, (4298), 2321 states have internal predecessors, (4298), 17 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-19 23:17:59,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-19 23:17:59,075 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:17:59,075 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:17:59,076 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:17:59,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:17:59,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1659781244, now seen corresponding path program 1 times [2024-11-19 23:17:59,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:17:59,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92789176] [2024-11-19 23:17:59,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:17:59,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:17:59,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:17:59,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:17:59,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:17:59,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 23:17:59,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:17:59,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-19 23:17:59,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:17:59,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-19 23:17:59,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:17:59,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-19 23:17:59,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:17:59,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:17:59,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:17:59,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92789176] [2024-11-19 23:17:59,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92789176] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:17:59,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:17:59,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 23:17:59,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259797045] [2024-11-19 23:17:59,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:17:59,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 23:17:59,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:17:59,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 23:17:59,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 23:17:59,647 INFO L87 Difference]: Start difference. First operand has 2344 states, 2318 states have (on average 1.8541846419327006) internal successors, (4298), 2321 states have internal predecessors, (4298), 17 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:18:00,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:18:00,684 INFO L93 Difference]: Finished difference Result 4911 states and 9024 transitions. [2024-11-19 23:18:00,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 23:18:00,686 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 79 [2024-11-19 23:18:00,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:18:00,714 INFO L225 Difference]: With dead ends: 4911 [2024-11-19 23:18:00,715 INFO L226 Difference]: Without dead ends: 2508 [2024-11-19 23:18:00,722 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-19 23:18:00,725 INFO L432 NwaCegarLoop]: 4166 mSDtfsCounter, 4555 mSDsluCounter, 12484 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4565 SdHoareTripleChecker+Valid, 16650 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 23:18:00,726 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4565 Valid, 16650 Invalid, 826 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [72 Valid, 754 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 23:18:00,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2508 states. [2024-11-19 23:18:00,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2508 to 2423. [2024-11-19 23:18:00,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2423 states, 2379 states have (on average 1.8263976460697773) internal successors, (4345), 2382 states have internal predecessors, (4345), 29 states have call successors, (29), 12 states have call predecessors, (29), 13 states have return successors, (32), 29 states have call predecessors, (32), 29 states have call successors, (32) [2024-11-19 23:18:00,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2423 states to 2423 states and 4406 transitions. [2024-11-19 23:18:00,875 INFO L78 Accepts]: Start accepts. Automaton has 2423 states and 4406 transitions. Word has length 79 [2024-11-19 23:18:00,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:18:00,876 INFO L471 AbstractCegarLoop]: Abstraction has 2423 states and 4406 transitions. [2024-11-19 23:18:00,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:18:00,876 INFO L276 IsEmpty]: Start isEmpty. Operand 2423 states and 4406 transitions. [2024-11-19 23:18:00,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-19 23:18:00,880 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:18:00,880 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:18:00,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 23:18:00,881 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:18:00,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:18:00,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1422733048, now seen corresponding path program 1 times [2024-11-19 23:18:00,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:18:00,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337648332] [2024-11-19 23:18:00,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:18:00,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:18:00,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:00,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:18:00,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:01,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 23:18:01,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:01,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-19 23:18:01,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:01,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-19 23:18:01,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:01,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-19 23:18:01,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:01,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:18:01,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:18:01,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337648332] [2024-11-19 23:18:01,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337648332] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:18:01,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:18:01,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 23:18:01,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131132013] [2024-11-19 23:18:01,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:18:01,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 23:18:01,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:18:01,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 23:18:01,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 23:18:01,102 INFO L87 Difference]: Start difference. First operand 2423 states and 4406 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:18:02,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:18:02,195 INFO L93 Difference]: Finished difference Result 2989 states and 5264 transitions. [2024-11-19 23:18:02,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 23:18:02,196 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 79 [2024-11-19 23:18:02,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:18:02,206 INFO L225 Difference]: With dead ends: 2989 [2024-11-19 23:18:02,207 INFO L226 Difference]: Without dead ends: 2698 [2024-11-19 23:18:02,208 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-19 23:18:02,209 INFO L432 NwaCegarLoop]: 4194 mSDtfsCounter, 4485 mSDsluCounter, 16591 mSDsCounter, 0 mSdLazyCounter, 1224 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4495 SdHoareTripleChecker+Valid, 20785 SdHoareTripleChecker+Invalid, 1267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-19 23:18:02,210 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4495 Valid, 20785 Invalid, 1267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1224 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-19 23:18:02,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2024-11-19 23:18:02,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 2560. [2024-11-19 23:18:02,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2560 states, 2497 states have (on average 1.8093712454945936) internal successors, (4518), 2501 states have internal predecessors, (4518), 41 states have call successors, (41), 18 states have call predecessors, (41), 20 states have return successors, (46), 42 states have call predecessors, (46), 41 states have call successors, (46) [2024-11-19 23:18:02,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2560 states to 2560 states and 4605 transitions. [2024-11-19 23:18:02,345 INFO L78 Accepts]: Start accepts. Automaton has 2560 states and 4605 transitions. Word has length 79 [2024-11-19 23:18:02,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:18:02,345 INFO L471 AbstractCegarLoop]: Abstraction has 2560 states and 4605 transitions. [2024-11-19 23:18:02,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:18:02,345 INFO L276 IsEmpty]: Start isEmpty. Operand 2560 states and 4605 transitions. [2024-11-19 23:18:02,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-19 23:18:02,347 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:18:02,347 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:18:02,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 23:18:02,348 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:18:02,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:18:02,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1477125946, now seen corresponding path program 1 times [2024-11-19 23:18:02,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:18:02,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182716408] [2024-11-19 23:18:02,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:18:02,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:18:02,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:02,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:18:02,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:02,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 23:18:02,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:02,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-19 23:18:02,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:02,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-19 23:18:02,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:02,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-19 23:18:02,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:02,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:18:02,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:18:02,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182716408] [2024-11-19 23:18:02,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182716408] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:18:02,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:18:02,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 23:18:02,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871778119] [2024-11-19 23:18:02,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:18:02,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 23:18:02,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:18:02,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 23:18:02,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 23:18:02,504 INFO L87 Difference]: Start difference. First operand 2560 states and 4605 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:18:03,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:18:03,498 INFO L93 Difference]: Finished difference Result 3483 states and 5999 transitions. [2024-11-19 23:18:03,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 23:18:03,498 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 79 [2024-11-19 23:18:03,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:18:03,509 INFO L225 Difference]: With dead ends: 3483 [2024-11-19 23:18:03,510 INFO L226 Difference]: Without dead ends: 3055 [2024-11-19 23:18:03,512 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-19 23:18:03,513 INFO L432 NwaCegarLoop]: 4192 mSDtfsCounter, 4483 mSDsluCounter, 16591 mSDsCounter, 0 mSdLazyCounter, 1220 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4493 SdHoareTripleChecker+Valid, 20783 SdHoareTripleChecker+Invalid, 1265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 23:18:03,514 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4493 Valid, 20783 Invalid, 1265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1220 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 23:18:03,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3055 states. [2024-11-19 23:18:03,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3055 to 2835. [2024-11-19 23:18:03,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2835 states, 2734 states have (on average 1.7794440380395025) internal successors, (4865), 2740 states have internal predecessors, (4865), 65 states have call successors, (65), 30 states have call predecessors, (65), 34 states have return successors, (78), 68 states have call predecessors, (78), 65 states have call successors, (78) [2024-11-19 23:18:03,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2835 states to 2835 states and 5008 transitions. [2024-11-19 23:18:03,585 INFO L78 Accepts]: Start accepts. Automaton has 2835 states and 5008 transitions. Word has length 79 [2024-11-19 23:18:03,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:18:03,586 INFO L471 AbstractCegarLoop]: Abstraction has 2835 states and 5008 transitions. [2024-11-19 23:18:03,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:18:03,586 INFO L276 IsEmpty]: Start isEmpty. Operand 2835 states and 5008 transitions. [2024-11-19 23:18:03,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-19 23:18:03,588 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:18:03,588 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:18:03,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 23:18:03,589 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:18:03,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:18:03,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1894522552, now seen corresponding path program 1 times [2024-11-19 23:18:03,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:18:03,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502923557] [2024-11-19 23:18:03,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:18:03,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:18:03,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:03,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:18:03,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:03,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 23:18:03,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:03,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-19 23:18:03,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:03,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-19 23:18:03,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:03,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-19 23:18:03,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:03,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:18:03,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:18:03,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502923557] [2024-11-19 23:18:03,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502923557] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:18:03,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:18:03,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 23:18:03,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179378477] [2024-11-19 23:18:03,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:18:03,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 23:18:03,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:18:03,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 23:18:03,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 23:18:03,709 INFO L87 Difference]: Start difference. First operand 2835 states and 5008 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:18:04,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:18:04,692 INFO L93 Difference]: Finished difference Result 4438 states and 7418 transitions. [2024-11-19 23:18:04,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 23:18:04,693 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 79 [2024-11-19 23:18:04,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:18:04,706 INFO L225 Difference]: With dead ends: 4438 [2024-11-19 23:18:04,706 INFO L226 Difference]: Without dead ends: 3735 [2024-11-19 23:18:04,709 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-19 23:18:04,710 INFO L432 NwaCegarLoop]: 4192 mSDtfsCounter, 4479 mSDsluCounter, 16591 mSDsCounter, 0 mSdLazyCounter, 1211 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4489 SdHoareTripleChecker+Valid, 20783 SdHoareTripleChecker+Invalid, 1256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 23:18:04,710 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4489 Valid, 20783 Invalid, 1256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1211 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 23:18:04,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3735 states. [2024-11-19 23:18:04,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3735 to 3386. [2024-11-19 23:18:04,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3386 states, 3209 states have (on average 1.7323153630414458) internal successors, (5559), 3219 states have internal predecessors, (5559), 113 states have call successors, (113), 54 states have call predecessors, (113), 62 states have return successors, (148), 120 states have call predecessors, (148), 113 states have call successors, (148) [2024-11-19 23:18:04,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 5820 transitions. [2024-11-19 23:18:04,808 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 5820 transitions. Word has length 79 [2024-11-19 23:18:04,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:18:04,809 INFO L471 AbstractCegarLoop]: Abstraction has 3386 states and 5820 transitions. [2024-11-19 23:18:04,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:18:04,809 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 5820 transitions. [2024-11-19 23:18:04,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-19 23:18:04,812 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:18:04,812 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:18:04,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 23:18:04,813 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:18:04,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:18:04,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1215250298, now seen corresponding path program 1 times [2024-11-19 23:18:04,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:18:04,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993395842] [2024-11-19 23:18:04,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:18:04,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:18:04,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:04,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:18:04,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:04,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 23:18:04,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:04,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-19 23:18:04,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:04,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-19 23:18:04,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:04,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-19 23:18:04,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:04,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:18:04,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:18:04,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993395842] [2024-11-19 23:18:04,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993395842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:18:04,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:18:04,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 23:18:04,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860990768] [2024-11-19 23:18:04,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:18:04,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 23:18:04,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:18:04,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 23:18:04,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 23:18:04,923 INFO L87 Difference]: Start difference. First operand 3386 states and 5820 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:18:06,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:18:06,004 INFO L93 Difference]: Finished difference Result 6755 states and 10866 transitions. [2024-11-19 23:18:06,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 23:18:06,005 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 79 [2024-11-19 23:18:06,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:18:06,025 INFO L225 Difference]: With dead ends: 6755 [2024-11-19 23:18:06,025 INFO L226 Difference]: Without dead ends: 5501 [2024-11-19 23:18:06,031 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-19 23:18:06,032 INFO L432 NwaCegarLoop]: 4190 mSDtfsCounter, 4610 mSDsluCounter, 16583 mSDsCounter, 0 mSdLazyCounter, 1195 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4624 SdHoareTripleChecker+Valid, 20773 SdHoareTripleChecker+Invalid, 1243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 23:18:06,032 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4624 Valid, 20773 Invalid, 1243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1195 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 23:18:06,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5501 states. [2024-11-19 23:18:06,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5501 to 4469. [2024-11-19 23:18:06,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4469 states, 4148 states have (on average 1.6723722275795565) internal successors, (6937), 4166 states have internal predecessors, (6937), 201 states have call successors, (201), 102 states have call predecessors, (201), 118 states have return successors, (298), 216 states have call predecessors, (298), 201 states have call successors, (298) [2024-11-19 23:18:06,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4469 states to 4469 states and 7436 transitions. [2024-11-19 23:18:06,170 INFO L78 Accepts]: Start accepts. Automaton has 4469 states and 7436 transitions. Word has length 79 [2024-11-19 23:18:06,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:18:06,171 INFO L471 AbstractCegarLoop]: Abstraction has 4469 states and 7436 transitions. [2024-11-19 23:18:06,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:18:06,171 INFO L276 IsEmpty]: Start isEmpty. Operand 4469 states and 7436 transitions. [2024-11-19 23:18:06,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-19 23:18:06,173 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:18:06,173 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:18:06,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 23:18:06,173 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:18:06,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:18:06,174 INFO L85 PathProgramCache]: Analyzing trace with hash 746324360, now seen corresponding path program 1 times [2024-11-19 23:18:06,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:18:06,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993986502] [2024-11-19 23:18:06,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:18:06,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:18:06,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:06,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:18:06,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:06,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 23:18:06,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:06,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-19 23:18:06,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:06,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-19 23:18:06,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:06,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-19 23:18:06,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:06,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:18:06,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:18:06,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993986502] [2024-11-19 23:18:06,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993986502] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:18:06,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:18:06,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 23:18:06,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873827931] [2024-11-19 23:18:06,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:18:06,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 23:18:06,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:18:06,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 23:18:06,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 23:18:06,289 INFO L87 Difference]: Start difference. First operand 4469 states and 7436 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:18:07,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:18:07,534 INFO L93 Difference]: Finished difference Result 10716 states and 16824 transitions. [2024-11-19 23:18:07,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 23:18:07,534 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 79 [2024-11-19 23:18:07,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:18:07,567 INFO L225 Difference]: With dead ends: 10716 [2024-11-19 23:18:07,567 INFO L226 Difference]: Without dead ends: 8379 [2024-11-19 23:18:07,575 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-19 23:18:07,576 INFO L432 NwaCegarLoop]: 4189 mSDtfsCounter, 4499 mSDsluCounter, 16580 mSDsCounter, 0 mSdLazyCounter, 1368 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4508 SdHoareTripleChecker+Valid, 20769 SdHoareTripleChecker+Invalid, 1415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-19 23:18:07,576 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4508 Valid, 20769 Invalid, 1415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1368 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-19 23:18:07,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8379 states. [2024-11-19 23:18:07,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8379 to 6544. [2024-11-19 23:18:07,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6544 states, 5943 states have (on average 1.6097930338213025) internal successors, (9567), 5977 states have internal predecessors, (9567), 369 states have call successors, (369), 198 states have call predecessors, (369), 230 states have return successors, (644), 400 states have call predecessors, (644), 369 states have call successors, (644) [2024-11-19 23:18:07,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6544 states to 6544 states and 10580 transitions. [2024-11-19 23:18:07,819 INFO L78 Accepts]: Start accepts. Automaton has 6544 states and 10580 transitions. Word has length 79 [2024-11-19 23:18:07,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:18:07,819 INFO L471 AbstractCegarLoop]: Abstraction has 6544 states and 10580 transitions. [2024-11-19 23:18:07,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:18:07,820 INFO L276 IsEmpty]: Start isEmpty. Operand 6544 states and 10580 transitions. [2024-11-19 23:18:07,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-19 23:18:07,825 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:18:07,825 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:18:07,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 23:18:07,826 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:18:07,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:18:07,826 INFO L85 PathProgramCache]: Analyzing trace with hash 948148294, now seen corresponding path program 1 times [2024-11-19 23:18:07,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:18:07,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263955489] [2024-11-19 23:18:07,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:18:07,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:18:07,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:07,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:18:07,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:07,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 23:18:07,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:07,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-19 23:18:07,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:07,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-19 23:18:07,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:07,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-19 23:18:07,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:07,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:18:07,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:18:07,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263955489] [2024-11-19 23:18:07,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263955489] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:18:07,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:18:07,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 23:18:07,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675555083] [2024-11-19 23:18:07,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:18:07,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 23:18:07,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:18:07,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 23:18:07,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 23:18:07,951 INFO L87 Difference]: Start difference. First operand 6544 states and 10580 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:18:09,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:18:09,379 INFO L93 Difference]: Finished difference Result 17622 states and 27382 transitions. [2024-11-19 23:18:09,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 23:18:09,380 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 79 [2024-11-19 23:18:09,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:18:09,440 INFO L225 Difference]: With dead ends: 17622 [2024-11-19 23:18:09,441 INFO L226 Difference]: Without dead ends: 13210 [2024-11-19 23:18:09,460 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-19 23:18:09,462 INFO L432 NwaCegarLoop]: 4190 mSDtfsCounter, 4488 mSDsluCounter, 16583 mSDsCounter, 0 mSdLazyCounter, 1151 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4502 SdHoareTripleChecker+Valid, 20773 SdHoareTripleChecker+Invalid, 1200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 23:18:09,462 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4502 Valid, 20773 Invalid, 1200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1151 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 23:18:09,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13210 states. [2024-11-19 23:18:10,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13210 to 10788. [2024-11-19 23:18:10,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10788 states, 9643 states have (on average 1.5587472778181064) internal successors, (15031), 9709 states have internal predecessors, (15031), 689 states have call successors, (689), 390 states have call predecessors, (689), 454 states have return successors, (1482), 752 states have call predecessors, (1482), 689 states have call successors, (1482) [2024-11-19 23:18:10,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10788 states to 10788 states and 17202 transitions. [2024-11-19 23:18:10,052 INFO L78 Accepts]: Start accepts. Automaton has 10788 states and 17202 transitions. Word has length 79 [2024-11-19 23:18:10,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:18:10,052 INFO L471 AbstractCegarLoop]: Abstraction has 10788 states and 17202 transitions. [2024-11-19 23:18:10,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:18:10,053 INFO L276 IsEmpty]: Start isEmpty. Operand 10788 states and 17202 transitions. [2024-11-19 23:18:10,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-19 23:18:10,060 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:18:10,060 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:18:10,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 23:18:10,060 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:18:10,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:18:10,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1381877380, now seen corresponding path program 1 times [2024-11-19 23:18:10,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:18:10,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473504085] [2024-11-19 23:18:10,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:18:10,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:18:10,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:10,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:18:10,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:10,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 23:18:10,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:10,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-19 23:18:10,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:10,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-19 23:18:10,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:10,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-19 23:18:10,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:10,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:18:10,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:18:10,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473504085] [2024-11-19 23:18:10,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473504085] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:18:10,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:18:10,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 23:18:10,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109047549] [2024-11-19 23:18:10,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:18:10,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 23:18:10,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:18:10,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 23:18:10,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 23:18:10,131 INFO L87 Difference]: Start difference. First operand 10788 states and 17202 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:18:11,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:18:11,413 INFO L93 Difference]: Finished difference Result 26631 states and 41350 transitions. [2024-11-19 23:18:11,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 23:18:11,413 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 79 [2024-11-19 23:18:11,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:18:11,468 INFO L225 Difference]: With dead ends: 26631 [2024-11-19 23:18:11,468 INFO L226 Difference]: Without dead ends: 17976 [2024-11-19 23:18:11,500 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-19 23:18:11,501 INFO L432 NwaCegarLoop]: 4222 mSDtfsCounter, 4656 mSDsluCounter, 12352 mSDsCounter, 0 mSdLazyCounter, 1009 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4683 SdHoareTripleChecker+Valid, 16574 SdHoareTripleChecker+Invalid, 1080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 1009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 23:18:11,501 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4683 Valid, 16574 Invalid, 1080 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 1009 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 23:18:11,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17976 states. [2024-11-19 23:18:12,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17976 to 15113. [2024-11-19 23:18:12,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15113 states, 13373 states have (on average 1.5226949824272789) internal successors, (20363), 13504 states have internal predecessors, (20363), 1054 states have call successors, (1054), 588 states have call predecessors, (1054), 684 states have return successors, (2091), 1084 states have call predecessors, (2091), 1054 states have call successors, (2091) [2024-11-19 23:18:12,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15113 states to 15113 states and 23508 transitions. [2024-11-19 23:18:12,303 INFO L78 Accepts]: Start accepts. Automaton has 15113 states and 23508 transitions. Word has length 79 [2024-11-19 23:18:12,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:18:12,303 INFO L471 AbstractCegarLoop]: Abstraction has 15113 states and 23508 transitions. [2024-11-19 23:18:12,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:18:12,304 INFO L276 IsEmpty]: Start isEmpty. Operand 15113 states and 23508 transitions. [2024-11-19 23:18:12,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-19 23:18:12,336 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:18:12,336 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, 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] [2024-11-19 23:18:12,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 23:18:12,337 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:18:12,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:18:12,339 INFO L85 PathProgramCache]: Analyzing trace with hash 372870207, now seen corresponding path program 1 times [2024-11-19 23:18:12,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:18:12,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750072797] [2024-11-19 23:18:12,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:18:12,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:18:12,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:12,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:18:12,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:12,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 23:18:12,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:12,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-19 23:18:12,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:12,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-19 23:18:12,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:12,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-19 23:18:12,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:12,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-19 23:18:12,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:12,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-19 23:18:12,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:12,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-19 23:18:12,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:12,488 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-19 23:18:12,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:18:12,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750072797] [2024-11-19 23:18:12,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750072797] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 23:18:12,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [269354455] [2024-11-19 23:18:12,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:18:12,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 23:18:12,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 23:18:12,493 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 23:18:12,497 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 23:18:12,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:12,603 INFO L255 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 23:18:12,611 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 23:18:12,688 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-19 23:18:12,688 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 23:18:12,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [269354455] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:18:12,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 23:18:12,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2024-11-19 23:18:12,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460947272] [2024-11-19 23:18:12,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:18:12,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 23:18:12,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:18:12,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 23:18:12,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 23:18:12,689 INFO L87 Difference]: Start difference. First operand 15113 states and 23508 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-19 23:18:13,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:18:13,608 INFO L93 Difference]: Finished difference Result 40726 states and 62424 transitions. [2024-11-19 23:18:13,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 23:18:13,608 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 129 [2024-11-19 23:18:13,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:18:13,713 INFO L225 Difference]: With dead ends: 40726 [2024-11-19 23:18:13,713 INFO L226 Difference]: Without dead ends: 27746 [2024-11-19 23:18:13,753 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 23:18:13,754 INFO L432 NwaCegarLoop]: 4184 mSDtfsCounter, 4140 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4140 SdHoareTripleChecker+Valid, 4386 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 23:18:13,754 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4140 Valid, 4386 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 23:18:13,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27746 states. [2024-11-19 23:18:15,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27746 to 27548. [2024-11-19 23:18:15,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27548 states, 24124 states have (on average 1.4909633559940307) internal successors, (35968), 24384 states have internal predecessors, (35968), 2054 states have call successors, (2054), 1176 states have call predecessors, (2054), 1368 states have return successors, (4065), 2051 states have call predecessors, (4065), 2054 states have call successors, (4065) [2024-11-19 23:18:15,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27548 states to 27548 states and 42087 transitions. [2024-11-19 23:18:15,461 INFO L78 Accepts]: Start accepts. Automaton has 27548 states and 42087 transitions. Word has length 129 [2024-11-19 23:18:15,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:18:15,463 INFO L471 AbstractCegarLoop]: Abstraction has 27548 states and 42087 transitions. [2024-11-19 23:18:15,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-19 23:18:15,463 INFO L276 IsEmpty]: Start isEmpty. Operand 27548 states and 42087 transitions. [2024-11-19 23:18:15,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-19 23:18:15,521 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:18:15,521 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, 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] [2024-11-19 23:18:15,533 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 23:18:15,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 23:18:15,726 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:18:15,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:18:15,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1742173535, now seen corresponding path program 1 times [2024-11-19 23:18:15,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:18:15,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434889807] [2024-11-19 23:18:15,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:18:15,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:18:15,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:15,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:18:15,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:15,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 23:18:15,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:15,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-19 23:18:15,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:15,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-19 23:18:15,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:15,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-19 23:18:15,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:15,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-19 23:18:15,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:15,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-19 23:18:15,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:15,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-19 23:18:15,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:15,887 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-19 23:18:15,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:18:15,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434889807] [2024-11-19 23:18:15,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434889807] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 23:18:15,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1728979309] [2024-11-19 23:18:15,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:18:15,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 23:18:15,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 23:18:15,890 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 23:18:15,892 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 23:18:15,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:15,991 INFO L255 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 23:18:15,994 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 23:18:16,058 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-19 23:18:16,060 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 23:18:16,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1728979309] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:18:16,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 23:18:16,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2024-11-19 23:18:16,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589042556] [2024-11-19 23:18:16,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:18:16,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 23:18:16,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:18:16,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 23:18:16,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 23:18:16,062 INFO L87 Difference]: Start difference. First operand 27548 states and 42087 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-19 23:18:17,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:18:17,985 INFO L93 Difference]: Finished difference Result 77685 states and 118029 transitions. [2024-11-19 23:18:17,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 23:18:17,986 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 129 [2024-11-19 23:18:17,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:18:18,170 INFO L225 Difference]: With dead ends: 77685 [2024-11-19 23:18:18,170 INFO L226 Difference]: Without dead ends: 52270 [2024-11-19 23:18:18,226 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 23:18:18,226 INFO L432 NwaCegarLoop]: 4184 mSDtfsCounter, 4134 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4134 SdHoareTripleChecker+Valid, 4386 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 23:18:18,227 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4134 Valid, 4386 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 23:18:18,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52270 states. [2024-11-19 23:18:20,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52270 to 51876. [2024-11-19 23:18:20,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51876 states, 45134 states have (on average 1.4709974741879737) internal successors, (66392), 45652 states have internal predecessors, (66392), 4004 states have call successors, (4004), 2352 states have call predecessors, (4004), 2736 states have return successors, (7963), 3935 states have call predecessors, (7963), 4004 states have call successors, (7963) [2024-11-19 23:18:20,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51876 states to 51876 states and 78359 transitions. [2024-11-19 23:18:20,985 INFO L78 Accepts]: Start accepts. Automaton has 51876 states and 78359 transitions. Word has length 129 [2024-11-19 23:18:20,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:18:20,985 INFO L471 AbstractCegarLoop]: Abstraction has 51876 states and 78359 transitions. [2024-11-19 23:18:20,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-19 23:18:20,986 INFO L276 IsEmpty]: Start isEmpty. Operand 51876 states and 78359 transitions. [2024-11-19 23:18:21,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-19 23:18:21,089 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:18:21,089 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, 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] [2024-11-19 23:18:21,097 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 23:18:21,293 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,SelfDestructingSolverStorable9 [2024-11-19 23:18:21,294 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:18:21,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:18:21,295 INFO L85 PathProgramCache]: Analyzing trace with hash 467842687, now seen corresponding path program 1 times [2024-11-19 23:18:21,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:18:21,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788039191] [2024-11-19 23:18:21,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:18:21,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:18:21,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:21,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:18:21,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:21,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 23:18:21,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:21,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-19 23:18:21,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:21,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-19 23:18:21,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:21,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-19 23:18:21,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:21,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-19 23:18:21,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:21,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-19 23:18:21,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:21,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-19 23:18:21,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:21,438 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-19 23:18:21,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:18:21,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788039191] [2024-11-19 23:18:21,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788039191] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 23:18:21,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2028762324] [2024-11-19 23:18:21,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:18:21,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 23:18:21,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 23:18:21,441 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 23:18:21,442 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 23:18:21,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:21,543 INFO L255 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 23:18:21,550 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 23:18:21,579 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-19 23:18:21,581 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 23:18:21,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2028762324] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:18:21,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 23:18:21,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-19 23:18:21,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053170939] [2024-11-19 23:18:21,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:18:21,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 23:18:21,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:18:21,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 23:18:21,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 23:18:21,583 INFO L87 Difference]: Start difference. First operand 51876 states and 78359 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-19 23:18:26,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:18:26,271 INFO L93 Difference]: Finished difference Result 149129 states and 226473 transitions. [2024-11-19 23:18:26,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 23:18:26,271 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 129 [2024-11-19 23:18:26,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:18:26,999 INFO L225 Difference]: With dead ends: 149129 [2024-11-19 23:18:26,999 INFO L226 Difference]: Without dead ends: 99387 [2024-11-19 23:18:27,105 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 23:18:27,106 INFO L432 NwaCegarLoop]: 4388 mSDtfsCounter, 197 mSDsluCounter, 4182 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 8570 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 23:18:27,106 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 8570 Invalid, 13 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 23:18:27,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99387 states. [2024-11-19 23:18:31,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99387 to 99387. [2024-11-19 23:18:32,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99387 states, 86170 states have (on average 1.4553440872693513) internal successors, (125407), 87073 states have internal predecessors, (125407), 7743 states have call successors, (7743), 4704 states have call predecessors, (7743), 5472 states have return successors, (17046), 7737 states have call predecessors, (17046), 7743 states have call successors, (17046) [2024-11-19 23:18:32,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99387 states to 99387 states and 150196 transitions. [2024-11-19 23:18:32,426 INFO L78 Accepts]: Start accepts. Automaton has 99387 states and 150196 transitions. Word has length 129 [2024-11-19 23:18:32,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:18:32,426 INFO L471 AbstractCegarLoop]: Abstraction has 99387 states and 150196 transitions. [2024-11-19 23:18:32,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-19 23:18:32,426 INFO L276 IsEmpty]: Start isEmpty. Operand 99387 states and 150196 transitions. [2024-11-19 23:18:33,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-19 23:18:33,151 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:18:33,151 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:18:33,159 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 23:18:33,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 23:18:33,352 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:18:33,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:18:33,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1721282092, now seen corresponding path program 1 times [2024-11-19 23:18:33,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:18:33,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397670371] [2024-11-19 23:18:33,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:18:33,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:18:33,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:33,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:18:33,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:33,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 23:18:33,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:33,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-19 23:18:33,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:33,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-19 23:18:33,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:33,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-19 23:18:33,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:33,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-19 23:18:33,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:33,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-19 23:18:33,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:33,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-19 23:18:33,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:33,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-19 23:18:33,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:33,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-19 23:18:33,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:33,501 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-19 23:18:33,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:18:33,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397670371] [2024-11-19 23:18:33,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397670371] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 23:18:33,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [828186150] [2024-11-19 23:18:33,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:18:33,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 23:18:33,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 23:18:33,504 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 23:18:33,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 23:18:33,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:33,606 INFO L255 TraceCheckSpWp]: Trace formula consists of 590 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 23:18:33,608 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 23:18:33,754 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-19 23:18:33,754 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 23:18:33,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [828186150] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:18:33,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 23:18:33,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2024-11-19 23:18:33,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887261829] [2024-11-19 23:18:33,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:18:33,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 23:18:33,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:18:33,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 23:18:33,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 23:18:33,756 INFO L87 Difference]: Start difference. First operand 99387 states and 150196 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10)