./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label44+token_ring.08.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/Problem05_label44+token_ring.08.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a50787eee309f695181bc37c4f84940bb8fed2cb76457a2c563ef0feb29ebac8 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 22:12:20,937 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 22:12:20,999 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 22:12:21,003 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 22:12:21,003 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 22:12:21,030 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 22:12:21,030 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 22:12:21,031 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 22:12:21,031 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 22:12:21,032 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 22:12:21,032 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 22:12:21,033 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 22:12:21,033 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 22:12:21,034 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 22:12:21,035 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 22:12:21,035 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 22:12:21,035 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 22:12:21,035 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 22:12:21,036 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 22:12:21,036 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 22:12:21,039 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 22:12:21,040 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 22:12:21,040 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 22:12:21,040 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 22:12:21,040 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 22:12:21,041 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 22:12:21,041 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 22:12:21,041 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 22:12:21,041 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 22:12:21,041 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 22:12:21,041 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 22:12:21,042 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 22:12:21,042 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 22:12:21,042 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 22:12:21,042 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 22:12:21,042 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 22:12:21,042 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 22:12:21,042 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 22:12:21,043 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 22:12:21,043 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 22:12:21,043 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 22:12:21,043 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 22:12:21,043 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a50787eee309f695181bc37c4f84940bb8fed2cb76457a2c563ef0feb29ebac8 [2024-11-11 22:12:21,280 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 22:12:21,301 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 22:12:21,304 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 22:12:21,305 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 22:12:21,306 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 22:12:21,307 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label44+token_ring.08.cil-1.c [2024-11-11 22:12:22,682 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 22:12:23,201 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 22:12:23,202 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label44+token_ring.08.cil-1.c [2024-11-11 22:12:23,246 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a017ca4bf/98af44073d074a9394aead633fbb03ac/FLAG02374dc68 [2024-11-11 22:12:23,259 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a017ca4bf/98af44073d074a9394aead633fbb03ac [2024-11-11 22:12:23,261 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 22:12:23,263 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 22:12:23,265 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 22:12:23,265 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 22:12:23,270 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 22:12:23,270 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 10:12:23" (1/1) ... [2024-11-11 22:12:23,271 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7285dc9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:12:23, skipping insertion in model container [2024-11-11 22:12:23,271 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 10:12:23" (1/1) ... [2024-11-11 22:12:23,410 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 22:12:24,807 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_label44+token_ring.08.cil-1.c[377340,377353] [2024-11-11 22:12:24,891 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_label44+token_ring.08.cil-1.c[383339,383352] [2024-11-11 22:12:25,151 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 22:12:25,162 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 22:12:25,874 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_label44+token_ring.08.cil-1.c[377340,377353] [2024-11-11 22:12:25,883 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_label44+token_ring.08.cil-1.c[383339,383352] [2024-11-11 22:12:25,898 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 22:12:25,971 INFO L204 MainTranslator]: Completed translation [2024-11-11 22:12:25,972 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:12:25 WrapperNode [2024-11-11 22:12:25,972 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 22:12:25,973 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 22:12:25,973 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 22:12:25,973 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 22:12:25,979 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:12:25" (1/1) ... [2024-11-11 22:12:26,098 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:12:25" (1/1) ... [2024-11-11 22:12:26,349 INFO L138 Inliner]: procedures = 60, calls = 65, calls flagged for inlining = 38, calls inlined = 38, statements flattened = 12993 [2024-11-11 22:12:26,349 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 22:12:26,350 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 22:12:26,351 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 22:12:26,352 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 22:12:26,360 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:12:25" (1/1) ... [2024-11-11 22:12:26,360 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:12:25" (1/1) ... [2024-11-11 22:12:26,403 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:12:25" (1/1) ... [2024-11-11 22:12:26,556 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]. [2024-11-11 22:12:26,556 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:12:25" (1/1) ... [2024-11-11 22:12:26,556 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:12:25" (1/1) ... [2024-11-11 22:12:26,670 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:12:25" (1/1) ... [2024-11-11 22:12:26,712 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:12:25" (1/1) ... [2024-11-11 22:12:26,735 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:12:25" (1/1) ... [2024-11-11 22:12:26,915 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:12:25" (1/1) ... [2024-11-11 22:12:26,986 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 22:12:26,987 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 22:12:26,987 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 22:12:26,987 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 22:12:26,987 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:12:25" (1/1) ... [2024-11-11 22:12:26,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 22:12:27,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 22:12:27,037 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) [2024-11-11 22:12:27,041 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 [2024-11-11 22:12:27,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 22:12:27,153 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-11 22:12:27,154 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-11 22:12:27,157 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-11 22:12:27,157 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-11 22:12:27,157 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-11 22:12:27,157 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-11 22:12:27,157 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-11 22:12:27,157 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-11 22:12:27,158 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-11 22:12:27,158 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-11 22:12:27,158 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-11 22:12:27,158 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-11 22:12:27,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 22:12:27,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 22:12:27,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 22:12:27,341 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 22:12:27,343 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 22:12:33,775 INFO L? ?]: Removed 1731 outVars from TransFormulas that were not future-live. [2024-11-11 22:12:33,776 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 22:12:33,827 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 22:12:33,827 INFO L316 CfgBuilder]: Removed 12 assume(true) statements. [2024-11-11 22:12:33,828 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 10:12:33 BoogieIcfgContainer [2024-11-11 22:12:33,831 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 22:12:33,833 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 22:12:33,833 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 22:12:33,840 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 22:12:33,841 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 10:12:23" (1/3) ... [2024-11-11 22:12:33,841 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47b46708 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 10:12:33, skipping insertion in model container [2024-11-11 22:12:33,841 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:12:25" (2/3) ... [2024-11-11 22:12:33,841 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47b46708 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 10:12:33, skipping insertion in model container [2024-11-11 22:12:33,842 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 10:12:33" (3/3) ... [2024-11-11 22:12:33,843 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label44+token_ring.08.cil-1.c [2024-11-11 22:12:33,856 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 22:12:33,856 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-11 22:12:33,954 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 22:12:33,959 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;@73616641, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 22:12:33,960 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-11 22:12:33,969 INFO L276 IsEmpty]: Start isEmpty. Operand has 2474 states, 2443 states have (on average 1.845272206303725) internal successors, (4508), 2446 states have internal predecessors, (4508), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-11 22:12:33,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-11 22:12:33,985 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:12:33,985 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:12:33,986 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:12:33,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:12:33,991 INFO L85 PathProgramCache]: Analyzing trace with hash -372695446, now seen corresponding path program 1 times [2024-11-11 22:12:33,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:12:33,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018471315] [2024-11-11 22:12:33,997 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:12:33,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:12:34,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:34,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:12:34,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:34,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 22:12:34,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:34,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:12:34,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:34,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-11 22:12:34,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:34,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-11 22:12:34,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:34,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:12:34,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:12:34,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018471315] [2024-11-11 22:12:34,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018471315] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:12:34,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:12:34,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 22:12:34,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398032167] [2024-11-11 22:12:34,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:12:34,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 22:12:34,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:12:34,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 22:12:34,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 22:12:34,501 INFO L87 Difference]: Start difference. First operand has 2474 states, 2443 states have (on average 1.845272206303725) internal successors, (4508), 2446 states have internal predecessors, (4508), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:12:35,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:12:35,755 INFO L93 Difference]: Finished difference Result 5040 states and 9262 transitions. [2024-11-11 22:12:35,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 22:12:35,758 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2024-11-11 22:12:35,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:12:35,785 INFO L225 Difference]: With dead ends: 5040 [2024-11-11 22:12:35,786 INFO L226 Difference]: Without dead ends: 2505 [2024-11-11 22:12:35,794 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:12:35,796 INFO L435 NwaCegarLoop]: 4291 mSDtfsCounter, 747 mSDsluCounter, 12379 mSDsCounter, 0 mSdLazyCounter, 728 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 767 SdHoareTripleChecker+Valid, 16670 SdHoareTripleChecker+Invalid, 776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-11 22:12:35,797 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [767 Valid, 16670 Invalid, 776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 728 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-11 22:12:35,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2505 states. [2024-11-11 22:12:35,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2505 to 2407. [2024-11-11 22:12:35,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2407 states, 2377 states have (on average 1.831299957930164) internal successors, (4353), 2379 states have internal predecessors, (4353), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-11 22:12:35,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2407 states to 2407 states and 4397 transitions. [2024-11-11 22:12:35,907 INFO L78 Accepts]: Start accepts. Automaton has 2407 states and 4397 transitions. Word has length 134 [2024-11-11 22:12:35,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:12:35,907 INFO L471 AbstractCegarLoop]: Abstraction has 2407 states and 4397 transitions. [2024-11-11 22:12:35,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:12:35,908 INFO L276 IsEmpty]: Start isEmpty. Operand 2407 states and 4397 transitions. [2024-11-11 22:12:35,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-11 22:12:35,910 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:12:35,910 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:12:35,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 22:12:35,911 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:12:35,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:12:35,911 INFO L85 PathProgramCache]: Analyzing trace with hash 333901160, now seen corresponding path program 1 times [2024-11-11 22:12:35,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:12:35,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992534693] [2024-11-11 22:12:35,912 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:12:35,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:12:35,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:36,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:12:36,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:36,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 22:12:36,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:36,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:12:36,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:36,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-11 22:12:36,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:36,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-11 22:12:36,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:36,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:12:36,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:12:36,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992534693] [2024-11-11 22:12:36,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992534693] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:12:36,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:12:36,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 22:12:36,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425194800] [2024-11-11 22:12:36,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:12:36,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 22:12:36,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:12:36,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 22:12:36,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-11 22:12:36,192 INFO L87 Difference]: Start difference. First operand 2407 states and 4397 transitions. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 4 states have internal predecessors, (124), 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) [2024-11-11 22:12:38,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:12:38,409 INFO L93 Difference]: Finished difference Result 3153 states and 5582 transitions. [2024-11-11 22:12:38,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 22:12:38,409 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 4 states have internal predecessors, (124), 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 134 [2024-11-11 22:12:38,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:12:38,432 INFO L225 Difference]: With dead ends: 3153 [2024-11-11 22:12:38,434 INFO L226 Difference]: Without dead ends: 2883 [2024-11-11 22:12:38,436 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-11 22:12:38,437 INFO L435 NwaCegarLoop]: 4200 mSDtfsCounter, 5067 mSDsluCounter, 12602 mSDsCounter, 0 mSdLazyCounter, 1593 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5082 SdHoareTripleChecker+Valid, 16802 SdHoareTripleChecker+Invalid, 1685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-11 22:12:38,438 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5082 Valid, 16802 Invalid, 1685 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [92 Valid, 1593 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-11 22:12:38,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2883 states. [2024-11-11 22:12:38,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2883 to 2688. [2024-11-11 22:12:38,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2688 states, 2634 states have (on average 1.8048595292331056) internal successors, (4754), 2637 states have internal predecessors, (4754), 39 states have call successors, (39), 12 states have call predecessors, (39), 13 states have return successors, (42), 39 states have call predecessors, (42), 39 states have call successors, (42) [2024-11-11 22:12:38,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2688 states to 2688 states and 4835 transitions. [2024-11-11 22:12:38,538 INFO L78 Accepts]: Start accepts. Automaton has 2688 states and 4835 transitions. Word has length 134 [2024-11-11 22:12:38,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:12:38,538 INFO L471 AbstractCegarLoop]: Abstraction has 2688 states and 4835 transitions. [2024-11-11 22:12:38,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 4 states have internal predecessors, (124), 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) [2024-11-11 22:12:38,539 INFO L276 IsEmpty]: Start isEmpty. Operand 2688 states and 4835 transitions. [2024-11-11 22:12:38,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-11 22:12:38,541 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:12:38,541 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:12:38,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-11 22:12:38,541 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:12:38,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:12:38,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1372602388, now seen corresponding path program 1 times [2024-11-11 22:12:38,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:12:38,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070242415] [2024-11-11 22:12:38,543 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:12:38,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:12:38,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:38,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:12:38,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:38,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 22:12:38,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:38,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:12:38,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:38,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-11 22:12:38,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:38,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-11 22:12:38,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:38,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:12:38,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:12:38,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070242415] [2024-11-11 22:12:38,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070242415] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:12:38,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:12:38,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:12:38,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717179622] [2024-11-11 22:12:38,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:12:38,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:12:38,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:12:38,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:12:38,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:12:38,852 INFO L87 Difference]: Start difference. First operand 2688 states and 4835 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-11 22:12:41,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:12:41,183 INFO L93 Difference]: Finished difference Result 3824 states and 6638 transitions. [2024-11-11 22:12:41,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:12:41,186 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 134 [2024-11-11 22:12:41,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:12:41,199 INFO L225 Difference]: With dead ends: 3824 [2024-11-11 22:12:41,200 INFO L226 Difference]: Without dead ends: 3273 [2024-11-11 22:12:41,204 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:12:41,206 INFO L435 NwaCegarLoop]: 4383 mSDtfsCounter, 5086 mSDsluCounter, 17273 mSDsCounter, 0 mSdLazyCounter, 2531 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5101 SdHoareTripleChecker+Valid, 21656 SdHoareTripleChecker+Invalid, 2584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-11 22:12:41,206 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5101 Valid, 21656 Invalid, 2584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2531 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-11 22:12:41,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3273 states. [2024-11-11 22:12:41,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3273 to 2950. [2024-11-11 22:12:41,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2950 states, 2872 states have (on average 1.7816852367688023) internal successors, (5117), 2876 states have internal predecessors, (5117), 56 states have call successors, (56), 18 states have call predecessors, (56), 20 states have return successors, (61), 57 states have call predecessors, (61), 56 states have call successors, (61) [2024-11-11 22:12:41,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2950 states to 2950 states and 5234 transitions. [2024-11-11 22:12:41,321 INFO L78 Accepts]: Start accepts. Automaton has 2950 states and 5234 transitions. Word has length 134 [2024-11-11 22:12:41,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:12:41,321 INFO L471 AbstractCegarLoop]: Abstraction has 2950 states and 5234 transitions. [2024-11-11 22:12:41,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-11 22:12:41,322 INFO L276 IsEmpty]: Start isEmpty. Operand 2950 states and 5234 transitions. [2024-11-11 22:12:41,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-11 22:12:41,323 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:12:41,324 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:12:41,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-11 22:12:41,324 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:12:41,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:12:41,325 INFO L85 PathProgramCache]: Analyzing trace with hash 629283882, now seen corresponding path program 1 times [2024-11-11 22:12:41,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:12:41,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539745470] [2024-11-11 22:12:41,325 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:12:41,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:12:41,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:41,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:12:41,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:41,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 22:12:41,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:41,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:12:41,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:41,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-11 22:12:41,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:41,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-11 22:12:41,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:41,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:12:41,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:12:41,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539745470] [2024-11-11 22:12:41,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539745470] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:12:41,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:12:41,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:12:41,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063217644] [2024-11-11 22:12:41,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:12:41,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:12:41,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:12:41,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:12:41,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:12:41,778 INFO L87 Difference]: Start difference. First operand 2950 states and 5234 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-11 22:12:44,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:12:44,070 INFO L93 Difference]: Finished difference Result 4813 states and 8183 transitions. [2024-11-11 22:12:44,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:12:44,071 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 134 [2024-11-11 22:12:44,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:12:44,083 INFO L225 Difference]: With dead ends: 4813 [2024-11-11 22:12:44,083 INFO L226 Difference]: Without dead ends: 4000 [2024-11-11 22:12:44,086 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:12:44,086 INFO L435 NwaCegarLoop]: 4210 mSDtfsCounter, 5166 mSDsluCounter, 16783 mSDsCounter, 0 mSdLazyCounter, 2151 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5181 SdHoareTripleChecker+Valid, 20993 SdHoareTripleChecker+Invalid, 2234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 2151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-11 22:12:44,087 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5181 Valid, 20993 Invalid, 2234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 2151 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-11 22:12:44,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4000 states. [2024-11-11 22:12:44,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4000 to 3475. [2024-11-11 22:12:44,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3475 states, 3349 states have (on average 1.74499850701702) internal successors, (5844), 3355 states have internal predecessors, (5844), 90 states have call successors, (90), 30 states have call predecessors, (90), 34 states have return successors, (103), 93 states have call predecessors, (103), 90 states have call successors, (103) [2024-11-11 22:12:44,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3475 states to 3475 states and 6037 transitions. [2024-11-11 22:12:44,264 INFO L78 Accepts]: Start accepts. Automaton has 3475 states and 6037 transitions. Word has length 134 [2024-11-11 22:12:44,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:12:44,265 INFO L471 AbstractCegarLoop]: Abstraction has 3475 states and 6037 transitions. [2024-11-11 22:12:44,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-11 22:12:44,265 INFO L276 IsEmpty]: Start isEmpty. Operand 3475 states and 6037 transitions. [2024-11-11 22:12:44,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-11 22:12:44,270 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:12:44,271 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:12:44,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-11 22:12:44,271 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:12:44,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:12:44,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1938538452, now seen corresponding path program 1 times [2024-11-11 22:12:44,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:12:44,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899283663] [2024-11-11 22:12:44,272 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:12:44,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:12:44,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:44,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:12:44,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:44,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 22:12:44,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:44,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:12:44,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:44,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-11 22:12:44,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:44,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-11 22:12:44,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:44,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:12:44,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:12:44,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899283663] [2024-11-11 22:12:44,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899283663] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:12:44,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:12:44,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:12:44,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346309809] [2024-11-11 22:12:44,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:12:44,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:12:44,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:12:44,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:12:44,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:12:44,581 INFO L87 Difference]: Start difference. First operand 3475 states and 6037 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-11 22:12:47,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:12:47,564 INFO L93 Difference]: Finished difference Result 6718 states and 11142 transitions. [2024-11-11 22:12:47,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:12:47,564 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 134 [2024-11-11 22:12:47,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:12:47,584 INFO L225 Difference]: With dead ends: 6718 [2024-11-11 22:12:47,584 INFO L226 Difference]: Without dead ends: 5380 [2024-11-11 22:12:47,589 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:12:47,590 INFO L435 NwaCegarLoop]: 4381 mSDtfsCounter, 5084 mSDsluCounter, 17273 mSDsCounter, 0 mSdLazyCounter, 2520 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5099 SdHoareTripleChecker+Valid, 21654 SdHoareTripleChecker+Invalid, 2575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:12:47,591 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5099 Valid, 21654 Invalid, 2575 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [55 Valid, 2520 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-11 22:12:47,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5380 states. [2024-11-11 22:12:47,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5380 to 4526. [2024-11-11 22:12:47,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4526 states, 4304 states have (on average 1.695631970260223) internal successors, (7298), 4314 states have internal predecessors, (7298), 158 states have call successors, (158), 54 states have call predecessors, (158), 62 states have return successors, (193), 165 states have call predecessors, (193), 158 states have call successors, (193) [2024-11-11 22:12:47,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4526 states to 4526 states and 7649 transitions. [2024-11-11 22:12:47,821 INFO L78 Accepts]: Start accepts. Automaton has 4526 states and 7649 transitions. Word has length 134 [2024-11-11 22:12:47,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:12:47,822 INFO L471 AbstractCegarLoop]: Abstraction has 4526 states and 7649 transitions. [2024-11-11 22:12:47,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-11 22:12:47,822 INFO L276 IsEmpty]: Start isEmpty. Operand 4526 states and 7649 transitions. [2024-11-11 22:12:47,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-11 22:12:47,824 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:12:47,824 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:12:47,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-11 22:12:47,825 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:12:47,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:12:47,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1467182102, now seen corresponding path program 1 times [2024-11-11 22:12:47,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:12:47,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972239211] [2024-11-11 22:12:47,826 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:12:47,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:12:47,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:47,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:12:47,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:48,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 22:12:48,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:48,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:12:48,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:48,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-11 22:12:48,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:48,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-11 22:12:48,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:48,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:12:48,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:12:48,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972239211] [2024-11-11 22:12:48,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972239211] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:12:48,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:12:48,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:12:48,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727248340] [2024-11-11 22:12:48,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:12:48,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:12:48,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:12:48,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:12:48,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:12:48,134 INFO L87 Difference]: Start difference. First operand 4526 states and 7649 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-11 22:12:50,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:12:50,910 INFO L93 Difference]: Finished difference Result 10520 states and 17064 transitions. [2024-11-11 22:12:50,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:12:50,910 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 134 [2024-11-11 22:12:50,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:12:50,952 INFO L225 Difference]: With dead ends: 10520 [2024-11-11 22:12:50,952 INFO L226 Difference]: Without dead ends: 8131 [2024-11-11 22:12:50,961 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:12:50,966 INFO L435 NwaCegarLoop]: 4381 mSDtfsCounter, 5080 mSDsluCounter, 17273 mSDsCounter, 0 mSdLazyCounter, 2492 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5095 SdHoareTripleChecker+Valid, 21654 SdHoareTripleChecker+Invalid, 2547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-11 22:12:50,968 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5095 Valid, 21654 Invalid, 2547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2492 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-11 22:12:50,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8131 states. [2024-11-11 22:12:51,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8131 to 6642. [2024-11-11 22:12:51,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6642 states, 6228 states have (on average 1.642581888246628) internal successors, (10230), 6246 states have internal predecessors, (10230), 294 states have call successors, (294), 102 states have call predecessors, (294), 118 states have return successors, (391), 309 states have call predecessors, (391), 294 states have call successors, (391) [2024-11-11 22:12:51,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6642 states to 6642 states and 10915 transitions. [2024-11-11 22:12:51,315 INFO L78 Accepts]: Start accepts. Automaton has 6642 states and 10915 transitions. Word has length 134 [2024-11-11 22:12:51,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:12:51,315 INFO L471 AbstractCegarLoop]: Abstraction has 6642 states and 10915 transitions. [2024-11-11 22:12:51,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-11 22:12:51,316 INFO L276 IsEmpty]: Start isEmpty. Operand 6642 states and 10915 transitions. [2024-11-11 22:12:51,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-11 22:12:51,319 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:12:51,319 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:12:51,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-11 22:12:51,319 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:12:51,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:12:51,320 INFO L85 PathProgramCache]: Analyzing trace with hash 696434472, now seen corresponding path program 1 times [2024-11-11 22:12:51,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:12:51,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092853541] [2024-11-11 22:12:51,320 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:12:51,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:12:51,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:51,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:12:51,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:51,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 22:12:51,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:51,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:12:51,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:51,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-11 22:12:51,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:51,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-11 22:12:51,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:51,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:12:51,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:12:51,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092853541] [2024-11-11 22:12:51,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092853541] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:12:51,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:12:51,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:12:51,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888795904] [2024-11-11 22:12:51,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:12:51,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:12:51,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:12:51,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:12:51,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:12:51,490 INFO L87 Difference]: Start difference. First operand 6642 states and 10915 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-11 22:12:54,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:12:54,591 INFO L93 Difference]: Finished difference Result 18142 states and 29000 transitions. [2024-11-11 22:12:54,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:12:54,592 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 134 [2024-11-11 22:12:54,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:12:54,641 INFO L225 Difference]: With dead ends: 18142 [2024-11-11 22:12:54,645 INFO L226 Difference]: Without dead ends: 13637 [2024-11-11 22:12:54,669 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:12:54,674 INFO L435 NwaCegarLoop]: 4381 mSDtfsCounter, 5079 mSDsluCounter, 17273 mSDsCounter, 0 mSdLazyCounter, 2479 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5094 SdHoareTripleChecker+Valid, 21654 SdHoareTripleChecker+Invalid, 2534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-11 22:12:54,675 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5094 Valid, 21654 Invalid, 2534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2479 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-11 22:12:54,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13637 states. [2024-11-11 22:12:55,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13637 to 10887. [2024-11-11 22:12:55,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10887 states, 10089 states have (on average 1.5969868173258004) internal successors, (16112), 10123 states have internal predecessors, (16112), 566 states have call successors, (566), 198 states have call predecessors, (566), 230 states have return successors, (841), 597 states have call predecessors, (841), 566 states have call successors, (841) [2024-11-11 22:12:55,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10887 states to 10887 states and 17519 transitions. [2024-11-11 22:12:55,189 INFO L78 Accepts]: Start accepts. Automaton has 10887 states and 17519 transitions. Word has length 134 [2024-11-11 22:12:55,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:12:55,189 INFO L471 AbstractCegarLoop]: Abstraction has 10887 states and 17519 transitions. [2024-11-11 22:12:55,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-11 22:12:55,190 INFO L276 IsEmpty]: Start isEmpty. Operand 10887 states and 17519 transitions. [2024-11-11 22:12:55,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-11 22:12:55,196 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:12:55,196 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:12:55,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-11 22:12:55,197 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:12:55,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:12:55,197 INFO L85 PathProgramCache]: Analyzing trace with hash -342150102, now seen corresponding path program 1 times [2024-11-11 22:12:55,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:12:55,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666180823] [2024-11-11 22:12:55,198 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:12:55,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:12:55,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:55,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:12:55,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:55,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 22:12:55,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:55,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:12:55,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:55,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-11 22:12:55,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:55,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-11 22:12:55,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:55,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:12:55,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:12:55,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666180823] [2024-11-11 22:12:55,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666180823] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:12:55,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:12:55,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:12:55,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533745997] [2024-11-11 22:12:55,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:12:55,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:12:55,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:12:55,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:12:55,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:12:55,409 INFO L87 Difference]: Start difference. First operand 10887 states and 17519 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-11 22:12:57,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:12:57,047 INFO L93 Difference]: Finished difference Result 22528 states and 36089 transitions. [2024-11-11 22:12:57,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 22:12:57,048 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 134 [2024-11-11 22:12:57,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:12:57,096 INFO L225 Difference]: With dead ends: 22528 [2024-11-11 22:12:57,096 INFO L226 Difference]: Without dead ends: 13778 [2024-11-11 22:12:57,124 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-11 22:12:57,125 INFO L435 NwaCegarLoop]: 4185 mSDtfsCounter, 4780 mSDsluCounter, 16543 mSDsCounter, 0 mSdLazyCounter, 1258 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4796 SdHoareTripleChecker+Valid, 20728 SdHoareTripleChecker+Invalid, 1315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:12:57,125 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4796 Valid, 20728 Invalid, 1315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1258 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 22:12:57,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13778 states. [2024-11-11 22:12:57,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13778 to 10887. [2024-11-11 22:12:57,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10887 states, 10089 states have (on average 1.5937159282386757) internal successors, (16079), 10123 states have internal predecessors, (16079), 566 states have call successors, (566), 198 states have call predecessors, (566), 230 states have return successors, (841), 597 states have call predecessors, (841), 566 states have call successors, (841) [2024-11-11 22:12:57,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10887 states to 10887 states and 17486 transitions. [2024-11-11 22:12:57,896 INFO L78 Accepts]: Start accepts. Automaton has 10887 states and 17486 transitions. Word has length 134 [2024-11-11 22:12:57,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:12:57,897 INFO L471 AbstractCegarLoop]: Abstraction has 10887 states and 17486 transitions. [2024-11-11 22:12:57,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-11 22:12:57,897 INFO L276 IsEmpty]: Start isEmpty. Operand 10887 states and 17486 transitions. [2024-11-11 22:12:57,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-11 22:12:57,905 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:12:57,905 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:12:57,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-11 22:12:57,906 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:12:57,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:12:57,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1979651816, now seen corresponding path program 1 times [2024-11-11 22:12:57,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:12:57,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532899425] [2024-11-11 22:12:57,908 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:12:57,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:12:57,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:58,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:12:58,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:58,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 22:12:58,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:58,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:12:58,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:58,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-11 22:12:58,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:58,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-11 22:12:58,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:58,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:12:58,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:12:58,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532899425] [2024-11-11 22:12:58,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532899425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:12:58,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:12:58,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:12:58,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477240147] [2024-11-11 22:12:58,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:12:58,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:12:58,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:12:58,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:12:58,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:12:58,132 INFO L87 Difference]: Start difference. First operand 10887 states and 17486 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-11 22:13:01,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:13:01,449 INFO L93 Difference]: Finished difference Result 33351 states and 52830 transitions. [2024-11-11 22:13:01,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:13:01,450 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 134 [2024-11-11 22:13:01,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:13:01,625 INFO L225 Difference]: With dead ends: 33351 [2024-11-11 22:13:01,625 INFO L226 Difference]: Without dead ends: 24601 [2024-11-11 22:13:01,681 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:13:01,686 INFO L435 NwaCegarLoop]: 4381 mSDtfsCounter, 5071 mSDsluCounter, 17273 mSDsCounter, 0 mSdLazyCounter, 2441 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5086 SdHoareTripleChecker+Valid, 21654 SdHoareTripleChecker+Invalid, 2496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-11 22:13:01,686 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5086 Valid, 21654 Invalid, 2496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2441 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-11 22:13:01,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24601 states. [2024-11-11 22:13:02,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24601 to 19441. [2024-11-11 22:13:02,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19441 states, 17875 states have (on average 1.5603356643356643) internal successors, (27891), 17941 states have internal predecessors, (27891), 1110 states have call successors, (1110), 390 states have call predecessors, (1110), 454 states have return successors, (1903), 1173 states have call predecessors, (1903), 1110 states have call successors, (1903) [2024-11-11 22:13:02,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19441 states to 19441 states and 30904 transitions. [2024-11-11 22:13:02,971 INFO L78 Accepts]: Start accepts. Automaton has 19441 states and 30904 transitions. Word has length 134 [2024-11-11 22:13:02,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:13:02,972 INFO L471 AbstractCegarLoop]: Abstraction has 19441 states and 30904 transitions. [2024-11-11 22:13:02,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-11 22:13:02,972 INFO L276 IsEmpty]: Start isEmpty. Operand 19441 states and 30904 transitions. [2024-11-11 22:13:02,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-11 22:13:02,983 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:13:02,983 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:13:02,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-11 22:13:02,983 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:13:02,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:13:02,984 INFO L85 PathProgramCache]: Analyzing trace with hash -162208662, now seen corresponding path program 1 times [2024-11-11 22:13:02,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:13:02,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836580223] [2024-11-11 22:13:02,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:13:02,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:13:02,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:13:03,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:13:03,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:13:03,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 22:13:03,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:13:03,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:13:03,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:13:03,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-11 22:13:03,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:13:03,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-11 22:13:03,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:13:03,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:13:03,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:13:03,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836580223] [2024-11-11 22:13:03,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836580223] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:13:03,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:13:03,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:13:03,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23437751] [2024-11-11 22:13:03,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:13:03,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:13:03,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:13:03,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:13:03,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:13:03,177 INFO L87 Difference]: Start difference. First operand 19441 states and 30904 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-11 22:13:08,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:13:08,029 INFO L93 Difference]: Finished difference Result 71583 states and 113144 transitions. [2024-11-11 22:13:08,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 22:13:08,030 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 134 [2024-11-11 22:13:08,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:13:08,188 INFO L225 Difference]: With dead ends: 71583 [2024-11-11 22:13:08,188 INFO L226 Difference]: Without dead ends: 54279 [2024-11-11 22:13:08,230 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-11 22:13:08,230 INFO L435 NwaCegarLoop]: 4379 mSDtfsCounter, 5400 mSDsluCounter, 17265 mSDsCounter, 0 mSdLazyCounter, 2421 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5424 SdHoareTripleChecker+Valid, 21644 SdHoareTripleChecker+Invalid, 2479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-11 22:13:08,231 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5424 Valid, 21644 Invalid, 2479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 2421 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-11 22:13:08,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54279 states. [2024-11-11 22:13:09,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54279 to 36418. [2024-11-11 22:13:09,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36418 states, 33380 states have (on average 1.5421509886159377) internal successors, (51477), 33510 states have internal predecessors, (51477), 2134 states have call successors, (2134), 774 states have call predecessors, (2134), 902 states have return successors, (4449), 2261 states have call predecessors, (4449), 2134 states have call successors, (4449) [2024-11-11 22:13:10,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36418 states to 36418 states and 58060 transitions. [2024-11-11 22:13:10,074 INFO L78 Accepts]: Start accepts. Automaton has 36418 states and 58060 transitions. Word has length 134 [2024-11-11 22:13:10,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:13:10,074 INFO L471 AbstractCegarLoop]: Abstraction has 36418 states and 58060 transitions. [2024-11-11 22:13:10,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-11 22:13:10,075 INFO L276 IsEmpty]: Start isEmpty. Operand 36418 states and 58060 transitions. [2024-11-11 22:13:10,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-11 22:13:10,115 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:13:10,115 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:13:10,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-11 22:13:10,116 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:13:10,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:13:10,117 INFO L85 PathProgramCache]: Analyzing trace with hash -785490264, now seen corresponding path program 1 times [2024-11-11 22:13:10,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:13:10,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763586342] [2024-11-11 22:13:10,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:13:10,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:13:10,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:13:10,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:13:10,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:13:10,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 22:13:10,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:13:10,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:13:10,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:13:10,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-11 22:13:10,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:13:10,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-11 22:13:10,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:13:10,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:13:10,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:13:10,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763586342] [2024-11-11 22:13:10,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763586342] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:13:10,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:13:10,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:13:10,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975455011] [2024-11-11 22:13:10,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:13:10,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:13:10,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:13:10,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:13:10,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:13:10,303 INFO L87 Difference]: Start difference. First operand 36418 states and 58060 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-11 22:13:17,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:13:17,796 INFO L93 Difference]: Finished difference Result 138190 states and 220638 transitions. [2024-11-11 22:13:17,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 22:13:17,796 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 134 [2024-11-11 22:13:17,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:13:18,120 INFO L225 Difference]: With dead ends: 138190 [2024-11-11 22:13:18,120 INFO L226 Difference]: Without dead ends: 103909 [2024-11-11 22:13:18,212 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-11 22:13:18,213 INFO L435 NwaCegarLoop]: 4236 mSDtfsCounter, 5209 mSDsluCounter, 16803 mSDsCounter, 0 mSdLazyCounter, 2659 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5223 SdHoareTripleChecker+Valid, 21039 SdHoareTripleChecker+Invalid, 2738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 2659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-11 22:13:18,213 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5223 Valid, 21039 Invalid, 2738 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [79 Valid, 2659 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-11 22:13:18,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103909 states. [2024-11-11 22:13:22,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103909 to 69667. [2024-11-11 22:13:22,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69667 states, 63749 states have (on average 1.532369135202121) internal successors, (97687), 64007 states have internal predecessors, (97687), 4118 states have call successors, (4118), 1542 states have call predecessors, (4118), 1798 states have return successors, (10935), 4373 states have call predecessors, (10935), 4118 states have call successors, (10935) [2024-11-11 22:13:23,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69667 states to 69667 states and 112740 transitions. [2024-11-11 22:13:23,265 INFO L78 Accepts]: Start accepts. Automaton has 69667 states and 112740 transitions. Word has length 134 [2024-11-11 22:13:23,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:13:23,268 INFO L471 AbstractCegarLoop]: Abstraction has 69667 states and 112740 transitions. [2024-11-11 22:13:23,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-11 22:13:23,269 INFO L276 IsEmpty]: Start isEmpty. Operand 69667 states and 112740 transitions. [2024-11-11 22:13:23,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-11 22:13:23,307 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:13:23,307 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:13:23,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-11 22:13:23,307 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:13:23,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:13:23,308 INFO L85 PathProgramCache]: Analyzing trace with hash -667048790, now seen corresponding path program 1 times [2024-11-11 22:13:23,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:13:23,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022394265] [2024-11-11 22:13:23,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:13:23,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:13:23,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:13:23,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:13:23,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:13:23,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 22:13:23,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:13:23,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:13:23,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:13:23,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-11 22:13:23,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:13:23,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-11 22:13:23,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:13:23,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:13:23,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:13:23,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022394265] [2024-11-11 22:13:23,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022394265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:13:23,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:13:23,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:13:23,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433003963] [2024-11-11 22:13:23,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:13:23,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:13:23,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:13:23,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:13:23,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:13:23,824 INFO L87 Difference]: Start difference. First operand 69667 states and 112740 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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)