./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.07.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.07.cil-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a0d6ced7e0ff387d58cf8725410ee88dbee5b176eb503e82e37c165076b7e65d --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-19 23:32:36,702 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 23:32:36,757 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 23:32:36,760 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 23:32:36,761 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 23:32:36,784 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 23:32:36,785 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 23:32:36,785 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 23:32:36,786 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 23:32:36,788 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 23:32:36,788 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 23:32:36,789 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 23:32:36,789 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 23:32:36,789 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 23:32:36,790 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 23:32:36,790 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 23:32:36,790 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 23:32:36,790 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 23:32:36,791 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 23:32:36,792 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 23:32:36,792 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 23:32:36,792 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 23:32:36,792 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 23:32:36,793 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 23:32:36,793 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 23:32:36,793 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 23:32:36,793 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 23:32:36,793 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 23:32:36,794 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 23:32:36,794 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 23:32:36,794 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 23:32:36,795 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 23:32:36,795 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 23:32:36,795 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 23:32:36,796 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 23:32:36,796 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 23:32:36,796 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 23:32:36,796 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 23:32:36,796 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 23:32:36,796 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 23:32:36,797 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 23:32:36,797 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 23:32:36,797 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a0d6ced7e0ff387d58cf8725410ee88dbee5b176eb503e82e37c165076b7e65d [2024-11-19 23:32:36,973 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 23:32:36,991 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 23:32:36,993 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 23:32:36,993 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 23:32:36,994 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 23:32:36,994 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.07.cil-2.c [2024-11-19 23:32:38,200 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 23:32:38,646 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 23:32:38,646 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.07.cil-2.c [2024-11-19 23:32:38,682 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8adc67757/d8b28010110d4e1eb0035beeec80cfe7/FLAGb3ab1c169 [2024-11-19 23:32:38,694 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8adc67757/d8b28010110d4e1eb0035beeec80cfe7 [2024-11-19 23:32:38,696 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 23:32:38,697 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 23:32:38,698 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 23:32:38,699 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 23:32:38,703 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 23:32:38,704 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:32:38" (1/1) ... [2024-11-19 23:32:38,705 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dbf3775 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:32:38, skipping insertion in model container [2024-11-19 23:32:38,705 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:32:38" (1/1) ... [2024-11-19 23:32:38,817 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 23:32:40,022 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_label49+token_ring.07.cil-2.c[380593,380606] [2024-11-19 23:32:40,045 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_label49+token_ring.07.cil-2.c[383339,383352] [2024-11-19 23:32:40,222 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 23:32:40,231 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 23:32:40,819 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_label49+token_ring.07.cil-2.c[380593,380606] [2024-11-19 23:32:40,823 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_label49+token_ring.07.cil-2.c[383339,383352] [2024-11-19 23:32:40,835 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 23:32:40,879 INFO L204 MainTranslator]: Completed translation [2024-11-19 23:32:40,880 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:32:40 WrapperNode [2024-11-19 23:32:40,880 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 23:32:40,881 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 23:32:40,881 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 23:32:40,881 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 23:32:40,885 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:32:40" (1/1) ... [2024-11-19 23:32:40,986 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:32:40" (1/1) ... [2024-11-19 23:32:41,220 INFO L138 Inliner]: procedures = 58, calls = 63, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 12939 [2024-11-19 23:32:41,220 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 23:32:41,221 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 23:32:41,221 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 23:32:41,221 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 23:32:41,230 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:32:40" (1/1) ... [2024-11-19 23:32:41,230 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:32:40" (1/1) ... [2024-11-19 23:32:41,264 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:32:40" (1/1) ... [2024-11-19 23:32:41,355 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-19 23:32:41,355 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:32:40" (1/1) ... [2024-11-19 23:32:41,355 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:32:40" (1/1) ... [2024-11-19 23:32:41,541 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:32:40" (1/1) ... [2024-11-19 23:32:41,586 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:32:40" (1/1) ... [2024-11-19 23:32:41,618 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:32:40" (1/1) ... [2024-11-19 23:32:41,640 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:32:40" (1/1) ... [2024-11-19 23:32:41,695 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 23:32:41,696 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 23:32:41,696 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 23:32:41,696 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 23:32:41,697 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:32:40" (1/1) ... [2024-11-19 23:32:41,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 23:32:41,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 23:32:41,725 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 23:32:41,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 23:32:41,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 23:32:41,758 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-19 23:32:41,758 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-19 23:32:41,758 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-19 23:32:41,758 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-19 23:32:41,758 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-19 23:32:41,758 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-19 23:32:41,758 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-19 23:32:41,759 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-19 23:32:41,759 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-19 23:32:41,759 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-19 23:32:41,759 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-19 23:32:41,759 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-19 23:32:41,759 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-19 23:32:41,759 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-19 23:32:41,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 23:32:41,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 23:32:41,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 23:32:41,906 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 23:32:41,908 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 23:32:47,772 INFO L? ?]: Removed 1729 outVars from TransFormulas that were not future-live. [2024-11-19 23:32:47,772 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 23:32:47,816 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 23:32:47,816 INFO L316 CfgBuilder]: Removed 11 assume(true) statements. [2024-11-19 23:32:47,817 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:32:47 BoogieIcfgContainer [2024-11-19 23:32:47,817 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 23:32:47,818 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 23:32:47,819 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 23:32:47,821 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 23:32:47,821 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 11:32:38" (1/3) ... [2024-11-19 23:32:47,821 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ce4e697 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:32:47, skipping insertion in model container [2024-11-19 23:32:47,821 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:32:40" (2/3) ... [2024-11-19 23:32:47,822 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ce4e697 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:32:47, skipping insertion in model container [2024-11-19 23:32:47,822 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:32:47" (3/3) ... [2024-11-19 23:32:47,823 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label49+token_ring.07.cil-2.c [2024-11-19 23:32:47,842 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 23:32:47,842 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-19 23:32:47,922 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 23:32:47,927 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;@f7f14f8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 23:32:47,927 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-19 23:32:47,937 INFO L276 IsEmpty]: Start isEmpty. Operand has 2456 states, 2423 states have (on average 1.8472967395790343) internal successors, (4476), 2428 states have internal predecessors, (4476), 23 states have call successors, (23), 7 states have call predecessors, (23), 7 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-19 23:32:47,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-19 23:32:47,949 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:32:47,950 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:32:47,951 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:32:47,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:32:47,955 INFO L85 PathProgramCache]: Analyzing trace with hash -165382437, now seen corresponding path program 1 times [2024-11-19 23:32:47,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:32:47,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517072889] [2024-11-19 23:32:47,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:32:47,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:32:48,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:32:48,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:32:48,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:32:48,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 23:32:48,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:32:48,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-19 23:32:48,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:32:48,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-19 23:32:48,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:32:48,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-19 23:32:48,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:32:48,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:32:48,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:32:48,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517072889] [2024-11-19 23:32:48,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517072889] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:32:48,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:32:48,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 23:32:48,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888194744] [2024-11-19 23:32:48,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:32:48,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 23:32:48,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:32:48,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 23:32:48,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 23:32:48,423 INFO L87 Difference]: Start difference. First operand has 2456 states, 2423 states have (on average 1.8472967395790343) internal successors, (4476), 2428 states have internal predecessors, (4476), 23 states have call successors, (23), 7 states have call predecessors, (23), 7 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:32:49,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:32:49,462 INFO L93 Difference]: Finished difference Result 4986 states and 9171 transitions. [2024-11-19 23:32:49,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 23:32:49,465 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 124 [2024-11-19 23:32:49,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:32:49,492 INFO L225 Difference]: With dead ends: 4986 [2024-11-19 23:32:49,492 INFO L226 Difference]: Without dead ends: 2475 [2024-11-19 23:32:49,499 INFO L431 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 [2024-11-19 23:32:49,501 INFO L432 NwaCegarLoop]: 4279 mSDtfsCounter, 679 mSDsluCounter, 12369 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 698 SdHoareTripleChecker+Valid, 16648 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-19 23:32:49,502 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [698 Valid, 16648 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-19 23:32:49,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2475 states. [2024-11-19 23:32:49,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2475 to 2388. [2024-11-19 23:32:49,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2388 states, 2357 states have (on average 1.8341111582520153) internal successors, (4323), 2360 states have internal predecessors, (4323), 23 states have call successors, (23), 7 states have call predecessors, (23), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-19 23:32:49,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2388 states to 2388 states and 4367 transitions. [2024-11-19 23:32:49,606 INFO L78 Accepts]: Start accepts. Automaton has 2388 states and 4367 transitions. Word has length 124 [2024-11-19 23:32:49,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:32:49,607 INFO L471 AbstractCegarLoop]: Abstraction has 2388 states and 4367 transitions. [2024-11-19 23:32:49,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:32:49,607 INFO L276 IsEmpty]: Start isEmpty. Operand 2388 states and 4367 transitions. [2024-11-19 23:32:49,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-19 23:32:49,610 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:32:49,610 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:32:49,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 23:32:49,611 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:32:49,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:32:49,613 INFO L85 PathProgramCache]: Analyzing trace with hash 873202137, now seen corresponding path program 1 times [2024-11-19 23:32:49,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:32:49,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184923552] [2024-11-19 23:32:49,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:32:49,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:32:49,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:32:49,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:32:49,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:32:49,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 23:32:49,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:32:49,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-19 23:32:49,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:32:49,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-19 23:32:49,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:32:49,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-19 23:32:49,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:32:49,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:32:49,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:32:49,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184923552] [2024-11-19 23:32:49,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184923552] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:32:49,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:32:49,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 23:32:49,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225586518] [2024-11-19 23:32:49,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:32:49,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 23:32:49,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:32:49,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 23:32:49,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 23:32:49,856 INFO L87 Difference]: Start difference. First operand 2388 states and 4367 transitions. Second operand has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:32:51,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:32:51,312 INFO L93 Difference]: Finished difference Result 3074 states and 5454 transitions. [2024-11-19 23:32:51,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 23:32:51,313 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 124 [2024-11-19 23:32:51,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:32:51,321 INFO L225 Difference]: With dead ends: 3074 [2024-11-19 23:32:51,322 INFO L226 Difference]: Without dead ends: 2822 [2024-11-19 23:32:51,323 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-19 23:32:51,324 INFO L432 NwaCegarLoop]: 4190 mSDtfsCounter, 4967 mSDsluCounter, 12573 mSDsCounter, 0 mSdLazyCounter, 1430 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4981 SdHoareTripleChecker+Valid, 16763 SdHoareTripleChecker+Invalid, 1526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-19 23:32:51,324 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4981 Valid, 16763 Invalid, 1526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 1430 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-19 23:32:51,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2822 states. [2024-11-19 23:32:51,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2822 to 2647. [2024-11-19 23:32:51,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2647 states, 2593 states have (on average 1.8094870806016197) internal successors, (4692), 2597 states have internal predecessors, (4692), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (40), 37 states have call predecessors, (40), 37 states have call successors, (40) [2024-11-19 23:32:51,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2647 states to 2647 states and 4771 transitions. [2024-11-19 23:32:51,380 INFO L78 Accepts]: Start accepts. Automaton has 2647 states and 4771 transitions. Word has length 124 [2024-11-19 23:32:51,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:32:51,380 INFO L471 AbstractCegarLoop]: Abstraction has 2647 states and 4771 transitions. [2024-11-19 23:32:51,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:32:51,382 INFO L276 IsEmpty]: Start isEmpty. Operand 2647 states and 4771 transitions. [2024-11-19 23:32:51,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-19 23:32:51,383 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:32:51,383 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:32:51,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 23:32:51,384 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:32:51,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:32:51,384 INFO L85 PathProgramCache]: Analyzing trace with hash -144446251, now seen corresponding path program 1 times [2024-11-19 23:32:51,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:32:51,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842996446] [2024-11-19 23:32:51,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:32:51,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:32:51,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:32:51,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:32:51,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:32:51,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 23:32:51,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:32:51,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-19 23:32:51,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:32:51,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-19 23:32:51,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:32:51,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-19 23:32:51,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:32:51,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:32:51,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:32:51,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842996446] [2024-11-19 23:32:51,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842996446] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:32:51,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:32:51,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 23:32:51,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105781807] [2024-11-19 23:32:51,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:32:51,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 23:32:51,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:32:51,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 23:32:51,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 23:32:51,596 INFO L87 Difference]: Start difference. First operand 2647 states and 4771 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:32:53,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:32:53,520 INFO L93 Difference]: Finished difference Result 3688 states and 6419 transitions. [2024-11-19 23:32:53,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 23:32:53,521 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 124 [2024-11-19 23:32:53,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:32:53,532 INFO L225 Difference]: With dead ends: 3688 [2024-11-19 23:32:53,532 INFO L226 Difference]: Without dead ends: 3177 [2024-11-19 23:32:53,534 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-19 23:32:53,537 INFO L432 NwaCegarLoop]: 4367 mSDtfsCounter, 4978 mSDsluCounter, 17219 mSDsCounter, 0 mSdLazyCounter, 2290 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4992 SdHoareTripleChecker+Valid, 21586 SdHoareTripleChecker+Invalid, 2345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-19 23:32:53,539 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4992 Valid, 21586 Invalid, 2345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2290 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-19 23:32:53,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3177 states. [2024-11-19 23:32:53,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3177 to 2889. [2024-11-19 23:32:53,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2889 states, 2812 states have (on average 1.7876955903271692) internal successors, (5027), 2817 states have internal predecessors, (5027), 55 states have call successors, (55), 19 states have call predecessors, (55), 20 states have return successors, (58), 54 states have call predecessors, (58), 53 states have call successors, (58) [2024-11-19 23:32:53,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2889 states to 2889 states and 5140 transitions. [2024-11-19 23:32:53,604 INFO L78 Accepts]: Start accepts. Automaton has 2889 states and 5140 transitions. Word has length 124 [2024-11-19 23:32:53,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:32:53,605 INFO L471 AbstractCegarLoop]: Abstraction has 2889 states and 5140 transitions. [2024-11-19 23:32:53,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:32:53,605 INFO L276 IsEmpty]: Start isEmpty. Operand 2889 states and 5140 transitions. [2024-11-19 23:32:53,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-19 23:32:53,608 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:32:53,608 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:32:53,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 23:32:53,609 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:32:53,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:32:53,609 INFO L85 PathProgramCache]: Analyzing trace with hash -26004777, now seen corresponding path program 1 times [2024-11-19 23:32:53,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:32:53,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197054302] [2024-11-19 23:32:53,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:32:53,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:32:53,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:32:53,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:32:53,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:32:53,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 23:32:53,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:32:53,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-19 23:32:53,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:32:53,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-19 23:32:53,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:32:53,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-19 23:32:53,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:32:53,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:32:53,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:32:53,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197054302] [2024-11-19 23:32:53,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197054302] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:32:53,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:32:53,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 23:32:53,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496799924] [2024-11-19 23:32:53,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:32:53,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 23:32:53,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:32:53,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 23:32:53,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 23:32:53,774 INFO L87 Difference]: Start difference. First operand 2889 states and 5140 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:32:55,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:32:55,543 INFO L93 Difference]: Finished difference Result 4593 states and 7832 transitions. [2024-11-19 23:32:55,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 23:32:55,544 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 124 [2024-11-19 23:32:55,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:32:55,556 INFO L225 Difference]: With dead ends: 4593 [2024-11-19 23:32:55,556 INFO L226 Difference]: Without dead ends: 3840 [2024-11-19 23:32:55,560 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-19 23:32:55,561 INFO L432 NwaCegarLoop]: 4365 mSDtfsCounter, 4976 mSDsluCounter, 17219 mSDsCounter, 0 mSdLazyCounter, 2286 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4990 SdHoareTripleChecker+Valid, 21584 SdHoareTripleChecker+Invalid, 2343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-19 23:32:55,561 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4990 Valid, 21584 Invalid, 2343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2286 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-19 23:32:55,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3840 states. [2024-11-19 23:32:55,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3840 to 3374. [2024-11-19 23:32:55,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3374 states, 3251 states have (on average 1.7526914795447555) internal successors, (5698), 3258 states have internal predecessors, (5698), 87 states have call successors, (87), 31 states have call predecessors, (87), 34 states have return successors, (98), 88 states have call predecessors, (98), 85 states have call successors, (98) [2024-11-19 23:32:55,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3374 states to 3374 states and 5883 transitions. [2024-11-19 23:32:55,647 INFO L78 Accepts]: Start accepts. Automaton has 3374 states and 5883 transitions. Word has length 124 [2024-11-19 23:32:55,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:32:55,648 INFO L471 AbstractCegarLoop]: Abstraction has 3374 states and 5883 transitions. [2024-11-19 23:32:55,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:32:55,648 INFO L276 IsEmpty]: Start isEmpty. Operand 3374 states and 5883 transitions. [2024-11-19 23:32:55,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-19 23:32:55,650 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:32:55,650 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:32:55,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 23:32:55,650 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:32:55,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:32:55,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1363289237, now seen corresponding path program 1 times [2024-11-19 23:32:55,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:32:55,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669302579] [2024-11-19 23:32:55,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:32:55,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:32:55,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:32:55,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:32:55,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:32:55,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 23:32:55,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:32:55,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-19 23:32:55,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:32:55,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-19 23:32:55,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:32:55,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-19 23:32:55,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:32:55,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:32:55,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:32:55,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669302579] [2024-11-19 23:32:55,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669302579] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:32:55,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:32:55,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 23:32:55,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641349635] [2024-11-19 23:32:55,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:32:55,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 23:32:55,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:32:55,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 23:32:55,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 23:32:55,820 INFO L87 Difference]: Start difference. First operand 3374 states and 5883 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:32:57,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:32:57,533 INFO L93 Difference]: Finished difference Result 6338 states and 10543 transitions. [2024-11-19 23:32:57,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 23:32:57,534 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 124 [2024-11-19 23:32:57,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:32:57,551 INFO L225 Difference]: With dead ends: 6338 [2024-11-19 23:32:57,551 INFO L226 Difference]: Without dead ends: 5100 [2024-11-19 23:32:57,556 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-19 23:32:57,556 INFO L432 NwaCegarLoop]: 4365 mSDtfsCounter, 4972 mSDsluCounter, 17219 mSDsCounter, 0 mSdLazyCounter, 2277 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4986 SdHoareTripleChecker+Valid, 21584 SdHoareTripleChecker+Invalid, 2334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-19 23:32:57,557 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4986 Valid, 21584 Invalid, 2334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2277 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-19 23:32:57,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5100 states. [2024-11-19 23:32:57,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5100 to 4345. [2024-11-19 23:32:57,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4345 states, 4130 states have (on average 1.7046004842615012) internal successors, (7040), 4141 states have internal predecessors, (7040), 151 states have call successors, (151), 55 states have call predecessors, (151), 62 states have return successors, (184), 156 states have call predecessors, (184), 149 states have call successors, (184) [2024-11-19 23:32:57,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4345 states to 4345 states and 7375 transitions. [2024-11-19 23:32:57,738 INFO L78 Accepts]: Start accepts. Automaton has 4345 states and 7375 transitions. Word has length 124 [2024-11-19 23:32:57,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:32:57,739 INFO L471 AbstractCegarLoop]: Abstraction has 4345 states and 7375 transitions. [2024-11-19 23:32:57,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:32:57,739 INFO L276 IsEmpty]: Start isEmpty. Operand 4345 states and 7375 transitions. [2024-11-19 23:32:57,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-19 23:32:57,742 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:32:57,742 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:32:57,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 23:32:57,742 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:32:57,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:32:57,743 INFO L85 PathProgramCache]: Analyzing trace with hash -670104809, now seen corresponding path program 1 times [2024-11-19 23:32:57,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:32:57,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724317889] [2024-11-19 23:32:57,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:32:57,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:32:57,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:32:57,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:32:57,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:32:57,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 23:32:57,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:32:57,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-19 23:32:57,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:32:57,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-19 23:32:57,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:32:57,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-19 23:32:57,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:32:57,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:32:57,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:32:57,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724317889] [2024-11-19 23:32:57,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724317889] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:32:57,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:32:57,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 23:32:57,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439043988] [2024-11-19 23:32:57,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:32:57,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 23:32:57,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:32:57,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 23:32:57,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 23:32:57,932 INFO L87 Difference]: Start difference. First operand 4345 states and 7375 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:32:59,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:32:59,676 INFO L93 Difference]: Finished difference Result 9827 states and 15981 transitions. [2024-11-19 23:32:59,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 23:32:59,677 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 124 [2024-11-19 23:32:59,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:32:59,708 INFO L225 Difference]: With dead ends: 9827 [2024-11-19 23:32:59,711 INFO L226 Difference]: Without dead ends: 7618 [2024-11-19 23:32:59,718 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-19 23:32:59,718 INFO L432 NwaCegarLoop]: 4365 mSDtfsCounter, 4968 mSDsluCounter, 17219 mSDsCounter, 0 mSdLazyCounter, 2268 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4982 SdHoareTripleChecker+Valid, 21584 SdHoareTripleChecker+Invalid, 2325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-19 23:32:59,719 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4982 Valid, 21584 Invalid, 2325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2268 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-19 23:32:59,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7618 states. [2024-11-19 23:32:59,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7618 to 6292. [2024-11-19 23:32:59,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6292 states, 5893 states have (on average 1.6511114882063465) internal successors, (9730), 5912 states have internal predecessors, (9730), 279 states have call successors, (279), 103 states have call predecessors, (279), 118 states have return successors, (374), 292 states have call predecessors, (374), 277 states have call successors, (374) [2024-11-19 23:32:59,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6292 states to 6292 states and 10383 transitions. [2024-11-19 23:32:59,965 INFO L78 Accepts]: Start accepts. Automaton has 6292 states and 10383 transitions. Word has length 124 [2024-11-19 23:32:59,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:32:59,965 INFO L471 AbstractCegarLoop]: Abstraction has 6292 states and 10383 transitions. [2024-11-19 23:32:59,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:32:59,965 INFO L276 IsEmpty]: Start isEmpty. Operand 6292 states and 10383 transitions. [2024-11-19 23:32:59,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-19 23:32:59,968 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:32:59,968 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:32:59,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 23:32:59,968 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:32:59,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:32:59,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1758153813, now seen corresponding path program 1 times [2024-11-19 23:32:59,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:32:59,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260124547] [2024-11-19 23:32:59,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:32:59,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:32:59,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:00,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:33:00,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:00,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 23:33:00,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:00,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-19 23:33:00,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:00,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-19 23:33:00,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:00,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-19 23:33:00,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:00,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:33:00,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:33:00,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260124547] [2024-11-19 23:33:00,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260124547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:33:00,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:33:00,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 23:33:00,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91697317] [2024-11-19 23:33:00,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:33:00,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 23:33:00,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:33:00,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 23:33:00,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 23:33:00,122 INFO L87 Difference]: Start difference. First operand 6292 states and 10383 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:33:02,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:33:02,011 INFO L93 Difference]: Finished difference Result 16804 states and 26915 transitions. [2024-11-19 23:33:02,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 23:33:02,012 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 124 [2024-11-19 23:33:02,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:33:02,040 INFO L225 Difference]: With dead ends: 16804 [2024-11-19 23:33:02,041 INFO L226 Difference]: Without dead ends: 12648 [2024-11-19 23:33:02,054 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-19 23:33:02,055 INFO L432 NwaCegarLoop]: 4365 mSDtfsCounter, 4970 mSDsluCounter, 17219 mSDsCounter, 0 mSdLazyCounter, 2254 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4984 SdHoareTripleChecker+Valid, 21584 SdHoareTripleChecker+Invalid, 2311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-19 23:33:02,055 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4984 Valid, 21584 Invalid, 2311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2254 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-19 23:33:02,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12648 states. [2024-11-19 23:33:02,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12648 to 10199. [2024-11-19 23:33:02,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10199 states, 9432 states have (on average 1.6039016115351994) internal successors, (15128), 9467 states have internal predecessors, (15128), 535 states have call successors, (535), 199 states have call predecessors, (535), 230 states have return successors, (808), 564 states have call predecessors, (808), 533 states have call successors, (808) [2024-11-19 23:33:02,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10199 states to 10199 states and 16471 transitions. [2024-11-19 23:33:02,459 INFO L78 Accepts]: Start accepts. Automaton has 10199 states and 16471 transitions. Word has length 124 [2024-11-19 23:33:02,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:33:02,459 INFO L471 AbstractCegarLoop]: Abstraction has 10199 states and 16471 transitions. [2024-11-19 23:33:02,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:33:02,460 INFO L276 IsEmpty]: Start isEmpty. Operand 10199 states and 16471 transitions. [2024-11-19 23:33:02,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-19 23:33:02,466 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:33:02,466 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:33:02,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 23:33:02,466 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:33:02,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:33:02,467 INFO L85 PathProgramCache]: Analyzing trace with hash 451011415, now seen corresponding path program 1 times [2024-11-19 23:33:02,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:33:02,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367038594] [2024-11-19 23:33:02,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:33:02,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:33:02,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:02,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:33:02,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:02,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 23:33:02,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:02,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-19 23:33:02,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:02,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-19 23:33:02,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:02,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-19 23:33:02,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:02,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:33:02,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:33:02,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367038594] [2024-11-19 23:33:02,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367038594] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:33:02,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:33:02,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 23:33:02,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331300197] [2024-11-19 23:33:02,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:33:02,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 23:33:02,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:33:02,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 23:33:02,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 23:33:02,601 INFO L87 Difference]: Start difference. First operand 10199 states and 16471 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:33:03,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:33:03,690 INFO L93 Difference]: Finished difference Result 20804 states and 33396 transitions. [2024-11-19 23:33:03,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 23:33:03,690 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 124 [2024-11-19 23:33:03,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:33:03,718 INFO L225 Difference]: With dead ends: 20804 [2024-11-19 23:33:03,718 INFO L226 Difference]: Without dead ends: 12741 [2024-11-19 23:33:03,733 INFO L431 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 [2024-11-19 23:33:03,735 INFO L432 NwaCegarLoop]: 4175 mSDtfsCounter, 4818 mSDsluCounter, 12407 mSDsCounter, 0 mSdLazyCounter, 1020 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4833 SdHoareTripleChecker+Valid, 16582 SdHoareTripleChecker+Invalid, 1102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1020 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 23:33:03,736 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4833 Valid, 16582 Invalid, 1102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1020 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 23:33:03,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12741 states. [2024-11-19 23:33:04,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12741 to 10199. [2024-11-19 23:33:04,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10199 states, 9432 states have (on average 1.6004028837998303) internal successors, (15095), 9467 states have internal predecessors, (15095), 535 states have call successors, (535), 199 states have call predecessors, (535), 230 states have return successors, (808), 564 states have call predecessors, (808), 533 states have call successors, (808) [2024-11-19 23:33:04,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10199 states to 10199 states and 16438 transitions. [2024-11-19 23:33:04,057 INFO L78 Accepts]: Start accepts. Automaton has 10199 states and 16438 transitions. Word has length 124 [2024-11-19 23:33:04,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:33:04,058 INFO L471 AbstractCegarLoop]: Abstraction has 10199 states and 16438 transitions. [2024-11-19 23:33:04,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:33:04,058 INFO L276 IsEmpty]: Start isEmpty. Operand 10199 states and 16438 transitions. [2024-11-19 23:33:04,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-19 23:33:04,066 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:33:04,066 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:33:04,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 23:33:04,066 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:33:04,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:33:04,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1482052313, now seen corresponding path program 1 times [2024-11-19 23:33:04,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:33:04,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890798251] [2024-11-19 23:33:04,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:33:04,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:33:04,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:04,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:33:04,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:04,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 23:33:04,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:04,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-19 23:33:04,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:04,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-19 23:33:04,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:04,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-19 23:33:04,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:04,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:33:04,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:33:04,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890798251] [2024-11-19 23:33:04,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890798251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:33:04,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:33:04,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 23:33:04,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959006547] [2024-11-19 23:33:04,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:33:04,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 23:33:04,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:33:04,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 23:33:04,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 23:33:04,213 INFO L87 Difference]: Start difference. First operand 10199 states and 16438 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:33:06,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:33:06,793 INFO L93 Difference]: Finished difference Result 34116 states and 53867 transitions. [2024-11-19 23:33:06,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 23:33:06,793 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 124 [2024-11-19 23:33:06,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:33:06,866 INFO L225 Difference]: With dead ends: 34116 [2024-11-19 23:33:06,867 INFO L226 Difference]: Without dead ends: 26053 [2024-11-19 23:33:06,897 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-19 23:33:06,897 INFO L432 NwaCegarLoop]: 4363 mSDtfsCounter, 5250 mSDsluCounter, 17211 mSDsCounter, 0 mSdLazyCounter, 2194 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5272 SdHoareTripleChecker+Valid, 21574 SdHoareTripleChecker+Invalid, 2254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-19 23:33:06,898 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5272 Valid, 21574 Invalid, 2254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2194 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-19 23:33:06,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26053 states. [2024-11-19 23:33:07,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26053 to 18012. [2024-11-19 23:33:07,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18012 states, 16541 states have (on average 1.568043044555952) internal successors, (25937), 16608 states have internal predecessors, (25937), 1015 states have call successors, (1015), 391 states have call predecessors, (1015), 454 states have return successors, (1806), 1076 states have call predecessors, (1806), 1013 states have call successors, (1806) [2024-11-19 23:33:07,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18012 states to 18012 states and 28758 transitions. [2024-11-19 23:33:07,658 INFO L78 Accepts]: Start accepts. Automaton has 18012 states and 28758 transitions. Word has length 124 [2024-11-19 23:33:07,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:33:07,658 INFO L471 AbstractCegarLoop]: Abstraction has 18012 states and 28758 transitions. [2024-11-19 23:33:07,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:33:07,658 INFO L276 IsEmpty]: Start isEmpty. Operand 18012 states and 28758 transitions. [2024-11-19 23:33:07,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-19 23:33:07,667 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:33:07,667 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:33:07,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 23:33:07,668 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:33:07,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:33:07,668 INFO L85 PathProgramCache]: Analyzing trace with hash -424350953, now seen corresponding path program 1 times [2024-11-19 23:33:07,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:33:07,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469092567] [2024-11-19 23:33:07,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:33:07,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:33:07,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:07,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:33:07,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:07,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 23:33:07,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:07,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-19 23:33:07,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:07,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-19 23:33:07,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:07,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-19 23:33:07,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:07,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:33:07,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:33:07,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469092567] [2024-11-19 23:33:07,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469092567] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:33:07,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:33:07,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 23:33:07,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037072023] [2024-11-19 23:33:07,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:33:07,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 23:33:07,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:33:07,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 23:33:07,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 23:33:07,827 INFO L87 Difference]: Start difference. First operand 18012 states and 28758 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:33:11,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:33:11,119 INFO L93 Difference]: Finished difference Result 64395 states and 101985 transitions. [2024-11-19 23:33:11,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 23:33:11,119 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 124 [2024-11-19 23:33:11,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:33:11,239 INFO L225 Difference]: With dead ends: 64395 [2024-11-19 23:33:11,239 INFO L226 Difference]: Without dead ends: 48519 [2024-11-19 23:33:11,277 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-19 23:33:11,278 INFO L432 NwaCegarLoop]: 4362 mSDtfsCounter, 5020 mSDsluCounter, 17208 mSDsCounter, 0 mSdLazyCounter, 2612 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5033 SdHoareTripleChecker+Valid, 21570 SdHoareTripleChecker+Invalid, 2671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-19 23:33:11,279 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5033 Valid, 21570 Invalid, 2671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2612 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-19 23:33:11,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48519 states. [2024-11-19 23:33:12,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48519 to 32961. [2024-11-19 23:33:12,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32961 states, 30114 states have (on average 1.5438334329547718) internal successors, (46491), 30245 states have internal predecessors, (46491), 1943 states have call successors, (1943), 775 states have call predecessors, (1943), 902 states have return successors, (4256), 2068 states have call predecessors, (4256), 1941 states have call successors, (4256) [2024-11-19 23:33:13,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32961 states to 32961 states and 52690 transitions. [2024-11-19 23:33:13,045 INFO L78 Accepts]: Start accepts. Automaton has 32961 states and 52690 transitions. Word has length 124 [2024-11-19 23:33:13,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:33:13,046 INFO L471 AbstractCegarLoop]: Abstraction has 32961 states and 52690 transitions. [2024-11-19 23:33:13,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:33:13,046 INFO L276 IsEmpty]: Start isEmpty. Operand 32961 states and 52690 transitions. [2024-11-19 23:33:13,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-19 23:33:13,062 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:33:13,062 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:33:13,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 23:33:13,062 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:33:13,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:33:13,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1176720153, now seen corresponding path program 1 times [2024-11-19 23:33:13,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:33:13,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708331761] [2024-11-19 23:33:13,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:33:13,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:33:13,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:13,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:33:13,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:13,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 23:33:13,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:13,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-19 23:33:13,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:13,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-19 23:33:13,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:13,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-19 23:33:13,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:13,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:33:13,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:33:13,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708331761] [2024-11-19 23:33:13,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708331761] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:33:13,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:33:13,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 23:33:13,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777645830] [2024-11-19 23:33:13,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:33:13,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 23:33:13,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:33:13,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 23:33:13,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 23:33:13,192 INFO L87 Difference]: Start difference. First operand 32961 states and 52690 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:33:18,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:33:18,473 INFO L93 Difference]: Finished difference Result 121846 states and 194751 transitions. [2024-11-19 23:33:18,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 23:33:18,473 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 124 [2024-11-19 23:33:18,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:33:18,782 INFO L225 Difference]: With dead ends: 121846 [2024-11-19 23:33:18,782 INFO L226 Difference]: Without dead ends: 91021 [2024-11-19 23:33:18,884 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-19 23:33:18,885 INFO L432 NwaCegarLoop]: 4363 mSDtfsCounter, 5170 mSDsluCounter, 17211 mSDsCounter, 0 mSdLazyCounter, 2168 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5192 SdHoareTripleChecker+Valid, 21574 SdHoareTripleChecker+Invalid, 2228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-19 23:33:18,885 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5192 Valid, 21574 Invalid, 2228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2168 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-19 23:33:18,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91021 states. [2024-11-19 23:33:21,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91021 to 63434. [2024-11-19 23:33:21,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63434 states, 57899 states have (on average 1.533929774262077) internal successors, (88813), 58158 states have internal predecessors, (88813), 3735 states have call successors, (3735), 1543 states have call predecessors, (3735), 1798 states have return successors, (10550), 3988 states have call predecessors, (10550), 3733 states have call successors, (10550) [2024-11-19 23:33:22,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63434 states to 63434 states and 103098 transitions. [2024-11-19 23:33:22,144 INFO L78 Accepts]: Start accepts. Automaton has 63434 states and 103098 transitions. Word has length 124 [2024-11-19 23:33:22,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:33:22,144 INFO L471 AbstractCegarLoop]: Abstraction has 63434 states and 103098 transitions. [2024-11-19 23:33:22,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:33:22,145 INFO L276 IsEmpty]: Start isEmpty. Operand 63434 states and 103098 transitions. [2024-11-19 23:33:22,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-19 23:33:22,177 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:33:22,177 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:33:22,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 23:33:22,177 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:33:22,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:33:22,177 INFO L85 PathProgramCache]: Analyzing trace with hash 119988951, now seen corresponding path program 1 times [2024-11-19 23:33:22,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:33:22,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015883735] [2024-11-19 23:33:22,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:33:22,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:33:22,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:22,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:33:22,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:22,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 23:33:22,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:22,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-19 23:33:22,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:22,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-19 23:33:22,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:22,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-19 23:33:22,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:22,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:33:22,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:33:22,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015883735] [2024-11-19 23:33:22,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015883735] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:33:22,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:33:22,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 23:33:22,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652295481] [2024-11-19 23:33:22,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:33:22,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 23:33:22,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:33:22,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 23:33:22,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 23:33:22,307 INFO L87 Difference]: Start difference. First operand 63434 states and 103098 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:33:32,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:33:32,047 INFO L93 Difference]: Finished difference Result 236173 states and 385669 transitions. [2024-11-19 23:33:32,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 23:33:32,047 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 124 [2024-11-19 23:33:32,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:33:32,832 INFO L225 Difference]: With dead ends: 236173 [2024-11-19 23:33:32,832 INFO L226 Difference]: Without dead ends: 174875 [2024-11-19 23:33:32,974 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-19 23:33:32,974 INFO L432 NwaCegarLoop]: 4363 mSDtfsCounter, 5130 mSDsluCounter, 17211 mSDsCounter, 0 mSdLazyCounter, 2155 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5152 SdHoareTripleChecker+Valid, 21574 SdHoareTripleChecker+Invalid, 2215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-19 23:33:32,975 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5152 Valid, 21574 Invalid, 2215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2155 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-19 23:33:33,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174875 states.