./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_label45+token_ring.11.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 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_label45+token_ring.11.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 88d274727136b53784890e6d1e1bf78dc0f4647c470f9c2edec85a87ad689472 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 02:19:34,509 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 02:19:34,582 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 02:19:34,588 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 02:19:34,590 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 02:19:34,613 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 02:19:34,614 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 02:19:34,614 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 02:19:34,615 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 02:19:34,616 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 02:19:34,617 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 02:19:34,617 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 02:19:34,618 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 02:19:34,619 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 02:19:34,619 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 02:19:34,620 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 02:19:34,620 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 02:19:34,620 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 02:19:34,620 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 02:19:34,620 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 02:19:34,621 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 02:19:34,623 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 02:19:34,623 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 02:19:34,623 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 02:19:34,623 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 02:19:34,624 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 02:19:34,624 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 02:19:34,624 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 02:19:34,624 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 02:19:34,625 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 02:19:34,625 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 02:19:34,625 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 02:19:34,625 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 02:19:34,625 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 02:19:34,625 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 02:19:34,625 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 02:19:34,626 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 02:19:34,626 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 02:19:34,626 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 02:19:34,627 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 02:19:34,627 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 02:19:34,628 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 02:19:34,628 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88d274727136b53784890e6d1e1bf78dc0f4647c470f9c2edec85a87ad689472 [2024-10-24 02:19:34,832 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 02:19:34,849 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 02:19:34,851 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 02:19:34,852 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 02:19:34,853 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 02:19:34,853 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.11.cil-1.c [2024-10-24 02:19:36,086 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 02:19:36,531 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 02:19:36,533 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.11.cil-1.c [2024-10-24 02:19:36,579 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9dfb53fb1/ea58392e19ca4387bebfd7a39450ccd5/FLAG13a27424a [2024-10-24 02:19:36,591 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9dfb53fb1/ea58392e19ca4387bebfd7a39450ccd5 [2024-10-24 02:19:36,593 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 02:19:36,594 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 02:19:36,596 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 02:19:36,597 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 02:19:36,629 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 02:19:36,629 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:19:36" (1/1) ... [2024-10-24 02:19:36,630 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29a7a7eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:19:36, skipping insertion in model container [2024-10-24 02:19:36,630 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:19:36" (1/1) ... [2024-10-24 02:19:36,743 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 02:19:37,982 WARN L248 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_label45+token_ring.11.cil-1.c[380323,380336] [2024-10-24 02:19:38,006 WARN L248 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_label45+token_ring.11.cil-1.c[383339,383352] [2024-10-24 02:19:38,218 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 02:19:38,228 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 02:19:38,828 WARN L248 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_label45+token_ring.11.cil-1.c[380323,380336] [2024-10-24 02:19:38,833 WARN L248 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_label45+token_ring.11.cil-1.c[383339,383352] [2024-10-24 02:19:38,852 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 02:19:38,895 INFO L204 MainTranslator]: Completed translation [2024-10-24 02:19:38,895 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:19:38 WrapperNode [2024-10-24 02:19:38,895 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 02:19:38,896 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 02:19:38,896 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 02:19:38,896 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 02:19:38,902 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:19:38" (1/1) ... [2024-10-24 02:19:38,976 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:19:38" (1/1) ... [2024-10-24 02:19:39,313 INFO L138 Inliner]: procedures = 66, calls = 75, calls flagged for inlining = 43, calls inlined = 43, statements flattened = 13179 [2024-10-24 02:19:39,314 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 02:19:39,315 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 02:19:39,315 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 02:19:39,315 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 02:19:39,327 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:19:38" (1/1) ... [2024-10-24 02:19:39,327 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:19:38" (1/1) ... [2024-10-24 02:19:39,373 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:19:38" (1/1) ... [2024-10-24 02:19:39,509 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]. [2024-10-24 02:19:39,509 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:19:38" (1/1) ... [2024-10-24 02:19:39,509 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:19:38" (1/1) ... [2024-10-24 02:19:39,597 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:19:38" (1/1) ... [2024-10-24 02:19:39,639 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:19:38" (1/1) ... [2024-10-24 02:19:39,674 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:19:38" (1/1) ... [2024-10-24 02:19:39,694 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:19:38" (1/1) ... [2024-10-24 02:19:39,743 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 02:19:39,744 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 02:19:39,744 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 02:19:39,745 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 02:19:39,745 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:19:38" (1/1) ... [2024-10-24 02:19:39,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 02:19:39,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 02:19:39,774 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) [2024-10-24 02:19:39,777 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 [2024-10-24 02:19:39,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 02:19:39,817 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-10-24 02:19:39,817 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-10-24 02:19:39,817 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-10-24 02:19:39,817 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-10-24 02:19:39,817 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-10-24 02:19:39,817 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-10-24 02:19:39,817 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-10-24 02:19:39,818 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-10-24 02:19:39,818 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-10-24 02:19:39,818 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-10-24 02:19:39,818 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-10-24 02:19:39,818 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-10-24 02:19:39,818 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-10-24 02:19:39,818 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-10-24 02:19:39,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 02:19:39,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 02:19:39,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 02:19:39,933 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 02:19:39,935 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 02:19:46,016 INFO L? ?]: Removed 1753 outVars from TransFormulas that were not future-live. [2024-10-24 02:19:46,016 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 02:19:46,110 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 02:19:46,111 INFO L314 CfgBuilder]: Removed 15 assume(true) statements. [2024-10-24 02:19:46,111 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:19:46 BoogieIcfgContainer [2024-10-24 02:19:46,111 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 02:19:46,181 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 02:19:46,182 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 02:19:46,184 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 02:19:46,185 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:19:36" (1/3) ... [2024-10-24 02:19:46,189 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58e68e31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:19:46, skipping insertion in model container [2024-10-24 02:19:46,189 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:19:38" (2/3) ... [2024-10-24 02:19:46,189 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58e68e31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:19:46, skipping insertion in model container [2024-10-24 02:19:46,189 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:19:46" (3/3) ... [2024-10-24 02:19:46,191 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label45+token_ring.11.cil-1.c [2024-10-24 02:19:46,204 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 02:19:46,204 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-24 02:19:46,288 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 02:19:46,293 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;@43552afa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 02:19:46,294 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-24 02:19:46,304 INFO L276 IsEmpty]: Start isEmpty. Operand has 2456 states, 2419 states have (on average 1.8768085985944605) internal successors, (4540), 2424 states have internal predecessors, (4540), 27 states have call successors, (27), 7 states have call predecessors, (27), 7 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-24 02:19:46,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-24 02:19:46,318 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:19:46,318 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:19:46,319 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:19:46,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:19:46,323 INFO L85 PathProgramCache]: Analyzing trace with hash 190505612, now seen corresponding path program 1 times [2024-10-24 02:19:46,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:19:46,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935290331] [2024-10-24 02:19:46,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:19:46,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:19:46,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:46,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:19:46,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:46,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:19:46,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:46,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 02:19:46,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:46,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 02:19:46,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:46,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-24 02:19:46,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:46,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:19:46,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:19:46,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935290331] [2024-10-24 02:19:46,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935290331] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:19:46,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:19:46,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 02:19:46,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531735628] [2024-10-24 02:19:46,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:19:46,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 02:19:46,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:19:46,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 02:19:46,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 02:19:46,899 INFO L87 Difference]: Start difference. First operand has 2456 states, 2419 states have (on average 1.8768085985944605) internal successors, (4540), 2424 states have internal predecessors, (4540), 27 states have call successors, (27), 7 states have call predecessors, (27), 7 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 3 states have internal predecessors, (141), 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) [2024-10-24 02:19:48,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:19:48,453 INFO L93 Difference]: Finished difference Result 5021 states and 9382 transitions. [2024-10-24 02:19:48,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 02:19:48,455 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 3 states have internal predecessors, (141), 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 152 [2024-10-24 02:19:48,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:19:48,477 INFO L225 Difference]: With dead ends: 5021 [2024-10-24 02:19:48,477 INFO L226 Difference]: Without dead ends: 2571 [2024-10-24 02:19:48,487 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-24 02:19:48,490 INFO L432 NwaCegarLoop]: 4249 mSDtfsCounter, 916 mSDsluCounter, 12200 mSDsCounter, 0 mSdLazyCounter, 993 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 939 SdHoareTripleChecker+Valid, 16449 SdHoareTripleChecker+Invalid, 1051 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 02:19:48,491 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [939 Valid, 16449 Invalid, 1051 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 993 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 02:19:48,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2571 states. [2024-10-24 02:19:48,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2571 to 2451. [2024-10-24 02:19:48,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2451 states, 2416 states have (on average 1.8385761589403973) internal successors, (4442), 2419 states have internal predecessors, (4442), 27 states have call successors, (27), 7 states have call predecessors, (27), 6 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-24 02:19:48,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2451 states to 2451 states and 4494 transitions. [2024-10-24 02:19:48,604 INFO L78 Accepts]: Start accepts. Automaton has 2451 states and 4494 transitions. Word has length 152 [2024-10-24 02:19:48,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:19:48,604 INFO L471 AbstractCegarLoop]: Abstraction has 2451 states and 4494 transitions. [2024-10-24 02:19:48,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 3 states have internal predecessors, (141), 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) [2024-10-24 02:19:48,605 INFO L276 IsEmpty]: Start isEmpty. Operand 2451 states and 4494 transitions. [2024-10-24 02:19:48,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-24 02:19:48,608 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:19:48,608 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:19:48,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 02:19:48,608 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:19:48,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:19:48,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1978375434, now seen corresponding path program 1 times [2024-10-24 02:19:48,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:19:48,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664016258] [2024-10-24 02:19:48,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:19:48,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:19:48,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:48,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:19:48,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:48,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:19:48,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:48,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 02:19:48,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:48,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 02:19:48,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:48,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-24 02:19:48,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:49,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:19:49,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:19:49,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664016258] [2024-10-24 02:19:49,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664016258] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:19:49,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:19:49,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 02:19:49,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291021783] [2024-10-24 02:19:49,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:19:49,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 02:19:49,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:19:49,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 02:19:49,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 02:19:49,016 INFO L87 Difference]: Start difference. First operand 2451 states and 4494 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 4 states have internal predecessors, (141), 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) [2024-10-24 02:19:51,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:19:51,715 INFO L93 Difference]: Finished difference Result 3334 states and 5970 transitions. [2024-10-24 02:19:51,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 02:19:51,716 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 4 states have internal predecessors, (141), 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 152 [2024-10-24 02:19:51,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:19:51,728 INFO L225 Difference]: With dead ends: 3334 [2024-10-24 02:19:51,728 INFO L226 Difference]: Without dead ends: 3021 [2024-10-24 02:19:51,731 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-10-24 02:19:51,732 INFO L432 NwaCegarLoop]: 4216 mSDtfsCounter, 5341 mSDsluCounter, 12642 mSDsCounter, 0 mSdLazyCounter, 2134 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5359 SdHoareTripleChecker+Valid, 16858 SdHoareTripleChecker+Invalid, 2246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 2134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-10-24 02:19:51,733 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5359 Valid, 16858 Invalid, 2246 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [112 Valid, 2134 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-10-24 02:19:51,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3021 states. [2024-10-24 02:19:51,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3021 to 2780. [2024-10-24 02:19:51,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2780 states, 2718 states have (on average 1.8178807947019868) internal successors, (4941), 2722 states have internal predecessors, (4941), 47 states have call successors, (47), 13 states have call predecessors, (47), 13 states have return successors, (48), 45 states have call predecessors, (48), 45 states have call successors, (48) [2024-10-24 02:19:51,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2780 states to 2780 states and 5036 transitions. [2024-10-24 02:19:51,834 INFO L78 Accepts]: Start accepts. Automaton has 2780 states and 5036 transitions. Word has length 152 [2024-10-24 02:19:51,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:19:51,834 INFO L471 AbstractCegarLoop]: Abstraction has 2780 states and 5036 transitions. [2024-10-24 02:19:51,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 4 states have internal predecessors, (141), 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) [2024-10-24 02:19:51,835 INFO L276 IsEmpty]: Start isEmpty. Operand 2780 states and 5036 transitions. [2024-10-24 02:19:51,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-24 02:19:51,837 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:19:51,837 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:19:51,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 02:19:51,838 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:19:51,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:19:51,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1779625978, now seen corresponding path program 1 times [2024-10-24 02:19:51,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:19:51,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62715834] [2024-10-24 02:19:51,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:19:51,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:19:51,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:52,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:19:52,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:52,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:19:52,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:52,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 02:19:52,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:52,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 02:19:52,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:52,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-24 02:19:52,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:52,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:19:52,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:19:52,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62715834] [2024-10-24 02:19:52,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62715834] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:19:52,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:19:52,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:19:52,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211042151] [2024-10-24 02:19:52,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:19:52,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:19:52,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:19:52,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:19:52,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:19:52,174 INFO L87 Difference]: Start difference. First operand 2780 states and 5036 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 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) [2024-10-24 02:19:55,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:19:55,196 INFO L93 Difference]: Finished difference Result 4129 states and 7292 transitions. [2024-10-24 02:19:55,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 02:19:55,196 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 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 152 [2024-10-24 02:19:55,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:19:55,207 INFO L225 Difference]: With dead ends: 4129 [2024-10-24 02:19:55,207 INFO L226 Difference]: Without dead ends: 3487 [2024-10-24 02:19:55,210 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 02:19:55,210 INFO L432 NwaCegarLoop]: 4412 mSDtfsCounter, 5370 mSDsluCounter, 17339 mSDsCounter, 0 mSdLazyCounter, 3476 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5388 SdHoareTripleChecker+Valid, 21751 SdHoareTripleChecker+Invalid, 3539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-24 02:19:55,211 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5388 Valid, 21751 Invalid, 3539 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [63 Valid, 3476 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-24 02:19:55,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3487 states. [2024-10-24 02:19:55,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3487 to 3084. [2024-10-24 02:19:55,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3084 states, 2995 states have (on average 1.7996661101836393) internal successors, (5390), 3000 states have internal predecessors, (5390), 67 states have call successors, (67), 19 states have call predecessors, (67), 20 states have return successors, (70), 66 states have call predecessors, (70), 65 states have call successors, (70) [2024-10-24 02:19:55,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3084 states to 3084 states and 5527 transitions. [2024-10-24 02:19:55,288 INFO L78 Accepts]: Start accepts. Automaton has 3084 states and 5527 transitions. Word has length 152 [2024-10-24 02:19:55,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:19:55,290 INFO L471 AbstractCegarLoop]: Abstraction has 3084 states and 5527 transitions. [2024-10-24 02:19:55,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 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) [2024-10-24 02:19:55,290 INFO L276 IsEmpty]: Start isEmpty. Operand 3084 states and 5527 transitions. [2024-10-24 02:19:55,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-24 02:19:55,293 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:19:55,293 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:19:55,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 02:19:55,294 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:19:55,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:19:55,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1970468744, now seen corresponding path program 1 times [2024-10-24 02:19:55,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:19:55,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840233298] [2024-10-24 02:19:55,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:19:55,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:19:55,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:55,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:19:55,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:55,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:19:55,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:55,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 02:19:55,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:55,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 02:19:55,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:55,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-24 02:19:55,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:55,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:19:55,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:19:55,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840233298] [2024-10-24 02:19:55,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840233298] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:19:55,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:19:55,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:19:55,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599272510] [2024-10-24 02:19:55,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:19:55,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:19:55,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:19:55,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:19:55,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:19:55,526 INFO L87 Difference]: Start difference. First operand 3084 states and 5527 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 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) [2024-10-24 02:19:58,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:19:58,346 INFO L93 Difference]: Finished difference Result 5294 states and 9217 transitions. [2024-10-24 02:19:58,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 02:19:58,347 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 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 152 [2024-10-24 02:19:58,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:19:58,362 INFO L225 Difference]: With dead ends: 5294 [2024-10-24 02:19:58,363 INFO L226 Difference]: Without dead ends: 4348 [2024-10-24 02:19:58,366 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 02:19:58,367 INFO L432 NwaCegarLoop]: 4410 mSDtfsCounter, 5368 mSDsluCounter, 17339 mSDsCounter, 0 mSdLazyCounter, 3472 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5386 SdHoareTripleChecker+Valid, 21749 SdHoareTripleChecker+Invalid, 3537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-10-24 02:19:58,367 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5386 Valid, 21749 Invalid, 3537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3472 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-10-24 02:19:58,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4348 states. [2024-10-24 02:19:58,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4348 to 3693. [2024-10-24 02:19:58,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3693 states, 3550 states have (on average 1.771549295774648) internal successors, (6289), 3557 states have internal predecessors, (6289), 107 states have call successors, (107), 31 states have call predecessors, (107), 34 states have return successors, (118), 108 states have call predecessors, (118), 105 states have call successors, (118) [2024-10-24 02:19:58,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3693 states to 3693 states and 6514 transitions. [2024-10-24 02:19:58,480 INFO L78 Accepts]: Start accepts. Automaton has 3693 states and 6514 transitions. Word has length 152 [2024-10-24 02:19:58,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:19:58,481 INFO L471 AbstractCegarLoop]: Abstraction has 3693 states and 6514 transitions. [2024-10-24 02:19:58,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 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) [2024-10-24 02:19:58,481 INFO L276 IsEmpty]: Start isEmpty. Operand 3693 states and 6514 transitions. [2024-10-24 02:19:58,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-24 02:19:58,482 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:19:58,482 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:19:58,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 02:19:58,483 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:19:58,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:19:58,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1649338426, now seen corresponding path program 1 times [2024-10-24 02:19:58,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:19:58,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299991227] [2024-10-24 02:19:58,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:19:58,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:19:58,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:58,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:19:58,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:58,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:19:58,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:58,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 02:19:58,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:58,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 02:19:58,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:58,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-24 02:19:58,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:58,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:19:58,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:19:58,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299991227] [2024-10-24 02:19:58,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299991227] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:19:58,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:19:58,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:19:58,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766402900] [2024-10-24 02:19:58,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:19:58,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:19:58,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:19:58,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:19:58,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:19:58,708 INFO L87 Difference]: Start difference. First operand 3693 states and 6514 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 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) [2024-10-24 02:20:00,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:20:00,071 INFO L93 Difference]: Finished difference Result 5891 states and 10195 transitions. [2024-10-24 02:20:00,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 02:20:00,071 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 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 152 [2024-10-24 02:20:00,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:20:00,085 INFO L225 Difference]: With dead ends: 5891 [2024-10-24 02:20:00,085 INFO L226 Difference]: Without dead ends: 4336 [2024-10-24 02:20:00,090 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 02:20:00,091 INFO L432 NwaCegarLoop]: 4203 mSDtfsCounter, 5113 mSDsluCounter, 12468 mSDsCounter, 0 mSdLazyCounter, 1599 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5132 SdHoareTripleChecker+Valid, 16671 SdHoareTripleChecker+Invalid, 1693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 02:20:00,091 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5132 Valid, 16671 Invalid, 1693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1599 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 02:20:00,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4336 states. [2024-10-24 02:20:00,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4336 to 3693. [2024-10-24 02:20:00,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3693 states, 3550 states have (on average 1.7701408450704226) internal successors, (6284), 3557 states have internal predecessors, (6284), 107 states have call successors, (107), 31 states have call predecessors, (107), 34 states have return successors, (118), 108 states have call predecessors, (118), 105 states have call successors, (118) [2024-10-24 02:20:00,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3693 states to 3693 states and 6509 transitions. [2024-10-24 02:20:00,199 INFO L78 Accepts]: Start accepts. Automaton has 3693 states and 6509 transitions. Word has length 152 [2024-10-24 02:20:00,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:20:00,199 INFO L471 AbstractCegarLoop]: Abstraction has 3693 states and 6509 transitions. [2024-10-24 02:20:00,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 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) [2024-10-24 02:20:00,200 INFO L276 IsEmpty]: Start isEmpty. Operand 3693 states and 6509 transitions. [2024-10-24 02:20:00,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-24 02:20:00,201 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:20:00,201 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:20:00,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 02:20:00,202 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:20:00,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:20:00,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1697576904, now seen corresponding path program 1 times [2024-10-24 02:20:00,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:20:00,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491311684] [2024-10-24 02:20:00,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:20:00,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:20:00,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:00,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:20:00,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:00,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:20:00,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:00,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 02:20:00,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:00,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 02:20:00,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:00,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-24 02:20:00,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:00,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:20:00,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:20:00,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491311684] [2024-10-24 02:20:00,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491311684] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:20:00,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:20:00,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:20:00,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462137623] [2024-10-24 02:20:00,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:20:00,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:20:00,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:20:00,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:20:00,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:20:00,401 INFO L87 Difference]: Start difference. First operand 3693 states and 6509 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 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) [2024-10-24 02:20:01,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:20:01,756 INFO L93 Difference]: Finished difference Result 5885 states and 10169 transitions. [2024-10-24 02:20:01,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 02:20:01,756 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 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 152 [2024-10-24 02:20:01,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:20:01,773 INFO L225 Difference]: With dead ends: 5885 [2024-10-24 02:20:01,773 INFO L226 Difference]: Without dead ends: 4330 [2024-10-24 02:20:01,777 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 02:20:01,782 INFO L432 NwaCegarLoop]: 4203 mSDtfsCounter, 5111 mSDsluCounter, 12468 mSDsCounter, 0 mSdLazyCounter, 1585 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5130 SdHoareTripleChecker+Valid, 16671 SdHoareTripleChecker+Invalid, 1679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 02:20:01,783 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5130 Valid, 16671 Invalid, 1679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1585 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 02:20:01,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4330 states. [2024-10-24 02:20:01,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4330 to 3693. [2024-10-24 02:20:01,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3693 states, 3550 states have (on average 1.7687323943661972) internal successors, (6279), 3557 states have internal predecessors, (6279), 107 states have call successors, (107), 31 states have call predecessors, (107), 34 states have return successors, (118), 108 states have call predecessors, (118), 105 states have call successors, (118) [2024-10-24 02:20:01,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3693 states to 3693 states and 6504 transitions. [2024-10-24 02:20:01,893 INFO L78 Accepts]: Start accepts. Automaton has 3693 states and 6504 transitions. Word has length 152 [2024-10-24 02:20:01,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:20:01,893 INFO L471 AbstractCegarLoop]: Abstraction has 3693 states and 6504 transitions. [2024-10-24 02:20:01,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 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) [2024-10-24 02:20:01,893 INFO L276 IsEmpty]: Start isEmpty. Operand 3693 states and 6504 transitions. [2024-10-24 02:20:01,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-24 02:20:01,895 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:20:01,895 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:20:01,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 02:20:01,895 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:20:01,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:20:01,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1112805254, now seen corresponding path program 1 times [2024-10-24 02:20:01,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:20:01,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098048365] [2024-10-24 02:20:01,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:20:01,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:20:01,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:01,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:20:01,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:02,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:20:02,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:02,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 02:20:02,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:02,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 02:20:02,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:02,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-24 02:20:02,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:02,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:20:02,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:20:02,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098048365] [2024-10-24 02:20:02,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098048365] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:20:02,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:20:02,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:20:02,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004870320] [2024-10-24 02:20:02,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:20:02,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:20:02,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:20:02,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:20:02,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:20:02,089 INFO L87 Difference]: Start difference. First operand 3693 states and 6504 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 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) [2024-10-24 02:20:03,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:20:03,531 INFO L93 Difference]: Finished difference Result 5878 states and 10141 transitions. [2024-10-24 02:20:03,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 02:20:03,534 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 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 152 [2024-10-24 02:20:03,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:20:03,553 INFO L225 Difference]: With dead ends: 5878 [2024-10-24 02:20:03,554 INFO L226 Difference]: Without dead ends: 4323 [2024-10-24 02:20:03,560 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 02:20:03,561 INFO L432 NwaCegarLoop]: 4203 mSDtfsCounter, 4972 mSDsluCounter, 16586 mSDsCounter, 0 mSdLazyCounter, 1736 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4991 SdHoareTripleChecker+Valid, 20789 SdHoareTripleChecker+Invalid, 1803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-24 02:20:03,561 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4991 Valid, 20789 Invalid, 1803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1736 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-24 02:20:03,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4323 states. [2024-10-24 02:20:03,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4323 to 3693. [2024-10-24 02:20:03,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3693 states, 3550 states have (on average 1.7673239436619719) internal successors, (6274), 3557 states have internal predecessors, (6274), 107 states have call successors, (107), 31 states have call predecessors, (107), 34 states have return successors, (118), 108 states have call predecessors, (118), 105 states have call successors, (118) [2024-10-24 02:20:03,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3693 states to 3693 states and 6499 transitions. [2024-10-24 02:20:03,677 INFO L78 Accepts]: Start accepts. Automaton has 3693 states and 6499 transitions. Word has length 152 [2024-10-24 02:20:03,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:20:03,678 INFO L471 AbstractCegarLoop]: Abstraction has 3693 states and 6499 transitions. [2024-10-24 02:20:03,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 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) [2024-10-24 02:20:03,678 INFO L276 IsEmpty]: Start isEmpty. Operand 3693 states and 6499 transitions. [2024-10-24 02:20:03,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-24 02:20:03,680 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:20:03,680 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:20:03,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 02:20:03,680 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:20:03,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:20:03,680 INFO L85 PathProgramCache]: Analyzing trace with hash 678299656, now seen corresponding path program 1 times [2024-10-24 02:20:03,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:20:03,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934706502] [2024-10-24 02:20:03,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:20:03,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:20:03,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:03,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:20:03,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:03,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:20:03,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:03,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 02:20:03,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:03,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 02:20:03,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:03,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-24 02:20:03,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:03,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:20:03,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:20:03,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934706502] [2024-10-24 02:20:03,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934706502] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:20:03,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:20:03,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:20:03,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009041410] [2024-10-24 02:20:03,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:20:03,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:20:03,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:20:03,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:20:03,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:20:03,869 INFO L87 Difference]: Start difference. First operand 3693 states and 6499 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 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) [2024-10-24 02:20:05,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:20:05,379 INFO L93 Difference]: Finished difference Result 5866 states and 10103 transitions. [2024-10-24 02:20:05,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 02:20:05,380 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 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 152 [2024-10-24 02:20:05,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:20:05,390 INFO L225 Difference]: With dead ends: 5866 [2024-10-24 02:20:05,391 INFO L226 Difference]: Without dead ends: 4311 [2024-10-24 02:20:05,395 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 02:20:05,396 INFO L432 NwaCegarLoop]: 4203 mSDtfsCounter, 5111 mSDsluCounter, 12468 mSDsCounter, 0 mSdLazyCounter, 1546 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5130 SdHoareTripleChecker+Valid, 16671 SdHoareTripleChecker+Invalid, 1640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-24 02:20:05,396 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5130 Valid, 16671 Invalid, 1640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1546 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-24 02:20:05,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4311 states. [2024-10-24 02:20:05,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4311 to 3693. [2024-10-24 02:20:05,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3693 states, 3550 states have (on average 1.7659154929577465) internal successors, (6269), 3557 states have internal predecessors, (6269), 107 states have call successors, (107), 31 states have call predecessors, (107), 34 states have return successors, (118), 108 states have call predecessors, (118), 105 states have call successors, (118) [2024-10-24 02:20:05,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3693 states to 3693 states and 6494 transitions. [2024-10-24 02:20:05,569 INFO L78 Accepts]: Start accepts. Automaton has 3693 states and 6494 transitions. Word has length 152 [2024-10-24 02:20:05,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:20:05,569 INFO L471 AbstractCegarLoop]: Abstraction has 3693 states and 6494 transitions. [2024-10-24 02:20:05,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 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) [2024-10-24 02:20:05,570 INFO L276 IsEmpty]: Start isEmpty. Operand 3693 states and 6494 transitions. [2024-10-24 02:20:05,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-24 02:20:05,572 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:20:05,572 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:20:05,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 02:20:05,573 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:20:05,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:20:05,573 INFO L85 PathProgramCache]: Analyzing trace with hash -28296950, now seen corresponding path program 1 times [2024-10-24 02:20:05,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:20:05,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13501289] [2024-10-24 02:20:05,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:20:05,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:20:05,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:05,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:20:05,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:05,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:20:05,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:05,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 02:20:05,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:05,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 02:20:05,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:05,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-24 02:20:05,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:05,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:20:05,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:20:05,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13501289] [2024-10-24 02:20:05,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13501289] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:20:05,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:20:05,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:20:05,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594330079] [2024-10-24 02:20:05,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:20:05,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:20:05,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:20:05,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:20:05,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:20:05,796 INFO L87 Difference]: Start difference. First operand 3693 states and 6494 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 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) [2024-10-24 02:20:08,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:20:08,595 INFO L93 Difference]: Finished difference Result 7494 states and 12734 transitions. [2024-10-24 02:20:08,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 02:20:08,595 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 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 152 [2024-10-24 02:20:08,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:20:08,607 INFO L225 Difference]: With dead ends: 7494 [2024-10-24 02:20:08,607 INFO L226 Difference]: Without dead ends: 5939 [2024-10-24 02:20:08,611 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 02:20:08,612 INFO L432 NwaCegarLoop]: 4410 mSDtfsCounter, 5339 mSDsluCounter, 17339 mSDsCounter, 0 mSdLazyCounter, 3342 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5357 SdHoareTripleChecker+Valid, 21749 SdHoareTripleChecker+Invalid, 3407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-24 02:20:08,612 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5357 Valid, 21749 Invalid, 3407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3342 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-24 02:20:08,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5939 states. [2024-10-24 02:20:08,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5939 to 4934. [2024-10-24 02:20:08,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4934 states, 4683 states have (on average 1.7258167841127483) internal successors, (8082), 4694 states have internal predecessors, (8082), 187 states have call successors, (187), 55 states have call predecessors, (187), 62 states have return successors, (220), 192 states have call predecessors, (220), 185 states have call successors, (220) [2024-10-24 02:20:08,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4934 states to 4934 states and 8489 transitions. [2024-10-24 02:20:08,862 INFO L78 Accepts]: Start accepts. Automaton has 4934 states and 8489 transitions. Word has length 152 [2024-10-24 02:20:08,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:20:08,863 INFO L471 AbstractCegarLoop]: Abstraction has 4934 states and 8489 transitions. [2024-10-24 02:20:08,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 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) [2024-10-24 02:20:08,863 INFO L276 IsEmpty]: Start isEmpty. Operand 4934 states and 8489 transitions. [2024-10-24 02:20:08,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-24 02:20:08,866 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:20:08,866 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:20:08,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 02:20:08,867 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:20:08,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:20:08,868 INFO L85 PathProgramCache]: Analyzing trace with hash 918740936, now seen corresponding path program 1 times [2024-10-24 02:20:08,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:20:08,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698128490] [2024-10-24 02:20:08,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:20:08,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:20:08,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:08,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:20:08,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:08,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:20:08,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:09,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 02:20:09,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:09,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 02:20:09,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:09,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-24 02:20:09,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:09,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:20:09,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:20:09,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698128490] [2024-10-24 02:20:09,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698128490] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:20:09,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:20:09,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:20:09,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988613845] [2024-10-24 02:20:09,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:20:09,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:20:09,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:20:09,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:20:09,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:20:09,056 INFO L87 Difference]: Start difference. First operand 4934 states and 8489 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 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) [2024-10-24 02:20:11,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:20:11,753 INFO L93 Difference]: Finished difference Result 11959 states and 20005 transitions. [2024-10-24 02:20:11,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 02:20:11,753 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 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 152 [2024-10-24 02:20:11,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:20:11,775 INFO L225 Difference]: With dead ends: 11959 [2024-10-24 02:20:11,775 INFO L226 Difference]: Without dead ends: 9163 [2024-10-24 02:20:11,784 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 02:20:11,785 INFO L432 NwaCegarLoop]: 4410 mSDtfsCounter, 5338 mSDsluCounter, 17339 mSDsCounter, 0 mSdLazyCounter, 3329 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5356 SdHoareTripleChecker+Valid, 21749 SdHoareTripleChecker+Invalid, 3394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-24 02:20:11,785 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5356 Valid, 21749 Invalid, 3394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3329 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-24 02:20:11,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9163 states. [2024-10-24 02:20:12,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9163 to 7413. [2024-10-24 02:20:12,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7413 states, 6946 states have (on average 1.6841347538151454) internal successors, (11698), 6965 states have internal predecessors, (11698), 347 states have call successors, (347), 103 states have call predecessors, (347), 118 states have return successors, (442), 360 states have call predecessors, (442), 345 states have call successors, (442) [2024-10-24 02:20:12,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7413 states to 7413 states and 12487 transitions. [2024-10-24 02:20:12,148 INFO L78 Accepts]: Start accepts. Automaton has 7413 states and 12487 transitions. Word has length 152 [2024-10-24 02:20:12,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:20:12,149 INFO L471 AbstractCegarLoop]: Abstraction has 7413 states and 12487 transitions. [2024-10-24 02:20:12,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 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) [2024-10-24 02:20:12,149 INFO L276 IsEmpty]: Start isEmpty. Operand 7413 states and 12487 transitions. [2024-10-24 02:20:12,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-24 02:20:12,152 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:20:12,152 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:20:12,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 02:20:12,153 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:20:12,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:20:12,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1780574538, now seen corresponding path program 1 times [2024-10-24 02:20:12,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:20:12,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524061964] [2024-10-24 02:20:12,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:20:12,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:20:12,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:12,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:20:12,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:12,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:20:12,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:12,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 02:20:12,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:12,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 02:20:12,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:12,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-24 02:20:12,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:12,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:20:12,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:20:12,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524061964] [2024-10-24 02:20:12,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524061964] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:20:12,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:20:12,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:20:12,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652969521] [2024-10-24 02:20:12,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:20:12,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:20:12,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:20:12,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:20:12,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:20:12,332 INFO L87 Difference]: Start difference. First operand 7413 states and 12487 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 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) [2024-10-24 02:20:15,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:20:15,362 INFO L93 Difference]: Finished difference Result 20880 states and 34589 transitions. [2024-10-24 02:20:15,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 02:20:15,363 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 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 152 [2024-10-24 02:20:15,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:20:15,400 INFO L225 Difference]: With dead ends: 20880 [2024-10-24 02:20:15,401 INFO L226 Difference]: Without dead ends: 15605 [2024-10-24 02:20:15,413 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 02:20:15,414 INFO L432 NwaCegarLoop]: 4410 mSDtfsCounter, 5337 mSDsluCounter, 17339 mSDsCounter, 0 mSdLazyCounter, 3316 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5355 SdHoareTripleChecker+Valid, 21749 SdHoareTripleChecker+Invalid, 3381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-24 02:20:15,414 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5355 Valid, 21749 Invalid, 3381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3316 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-24 02:20:15,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15605 states. [2024-10-24 02:20:15,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15605 to 12386. [2024-10-24 02:20:15,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12386 states, 11487 states have (on average 1.649865064855924) internal successors, (18952), 11522 states have internal predecessors, (18952), 667 states have call successors, (667), 199 states have call predecessors, (667), 230 states have return successors, (940), 696 states have call predecessors, (940), 665 states have call successors, (940) [2024-10-24 02:20:15,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12386 states to 12386 states and 20559 transitions. [2024-10-24 02:20:15,910 INFO L78 Accepts]: Start accepts. Automaton has 12386 states and 20559 transitions. Word has length 152 [2024-10-24 02:20:15,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:20:15,911 INFO L471 AbstractCegarLoop]: Abstraction has 12386 states and 20559 transitions. [2024-10-24 02:20:15,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 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) [2024-10-24 02:20:15,911 INFO L276 IsEmpty]: Start isEmpty. Operand 12386 states and 20559 transitions. [2024-10-24 02:20:15,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-24 02:20:15,919 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:20:15,919 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:20:15,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 02:20:15,919 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:20:15,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:20:15,920 INFO L85 PathProgramCache]: Analyzing trace with hash -269834360, now seen corresponding path program 1 times [2024-10-24 02:20:15,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:20:15,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003312223] [2024-10-24 02:20:15,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:20:15,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:20:15,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:15,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:20:15,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:16,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:20:16,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:16,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 02:20:16,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:16,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 02:20:16,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:16,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-24 02:20:16,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:16,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:20:16,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:20:16,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003312223] [2024-10-24 02:20:16,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003312223] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:20:16,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:20:16,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:20:16,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241608735] [2024-10-24 02:20:16,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:20:16,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:20:16,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:20:16,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:20:16,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:20:16,097 INFO L87 Difference]: Start difference. First operand 12386 states and 20559 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 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) [2024-10-24 02:20:18,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:20:18,202 INFO L93 Difference]: Finished difference Result 26016 states and 43196 transitions. [2024-10-24 02:20:18,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 02:20:18,202 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 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 152 [2024-10-24 02:20:18,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:20:18,244 INFO L225 Difference]: With dead ends: 26016 [2024-10-24 02:20:18,244 INFO L226 Difference]: Without dead ends: 15768 [2024-10-24 02:20:18,273 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 02:20:18,274 INFO L432 NwaCegarLoop]: 4203 mSDtfsCounter, 4970 mSDsluCounter, 16586 mSDsCounter, 0 mSdLazyCounter, 1666 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4989 SdHoareTripleChecker+Valid, 20789 SdHoareTripleChecker+Invalid, 1733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-24 02:20:18,274 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4989 Valid, 20789 Invalid, 1733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1666 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-24 02:20:18,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15768 states. [2024-10-24 02:20:18,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15768 to 12386. [2024-10-24 02:20:18,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12386 states, 11487 states have (on average 1.646992252111082) internal successors, (18919), 11522 states have internal predecessors, (18919), 667 states have call successors, (667), 199 states have call predecessors, (667), 230 states have return successors, (940), 696 states have call predecessors, (940), 665 states have call successors, (940) [2024-10-24 02:20:18,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12386 states to 12386 states and 20526 transitions. [2024-10-24 02:20:18,799 INFO L78 Accepts]: Start accepts. Automaton has 12386 states and 20526 transitions. Word has length 152 [2024-10-24 02:20:18,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:20:18,799 INFO L471 AbstractCegarLoop]: Abstraction has 12386 states and 20526 transitions. [2024-10-24 02:20:18,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 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) [2024-10-24 02:20:18,799 INFO L276 IsEmpty]: Start isEmpty. Operand 12386 states and 20526 transitions. [2024-10-24 02:20:18,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-24 02:20:18,805 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:20:18,805 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:20:18,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 02:20:18,806 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:20:18,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:20:18,806 INFO L85 PathProgramCache]: Analyzing trace with hash 218212746, now seen corresponding path program 1 times [2024-10-24 02:20:18,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:20:18,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089114467] [2024-10-24 02:20:18,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:20:18,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:20:18,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:18,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:20:18,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:18,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:20:18,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:18,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 02:20:18,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:18,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 02:20:18,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:18,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-24 02:20:18,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:18,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:20:18,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:20:18,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089114467] [2024-10-24 02:20:18,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089114467] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:20:18,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:20:18,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:20:18,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691724920] [2024-10-24 02:20:18,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:20:18,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:20:18,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:20:18,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:20:18,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:20:18,976 INFO L87 Difference]: Start difference. First operand 12386 states and 20526 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 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) [2024-10-24 02:20:22,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:20:22,968 INFO L93 Difference]: Finished difference Result 43169 states and 70985 transitions. [2024-10-24 02:20:22,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:20:22,968 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 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 152 [2024-10-24 02:20:22,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:20:23,040 INFO L225 Difference]: With dead ends: 43169 [2024-10-24 02:20:23,040 INFO L226 Difference]: Without dead ends: 32921 [2024-10-24 02:20:23,060 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 02:20:23,061 INFO L432 NwaCegarLoop]: 4408 mSDtfsCounter, 5728 mSDsluCounter, 17334 mSDsCounter, 0 mSdLazyCounter, 3268 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5758 SdHoareTripleChecker+Valid, 21742 SdHoareTripleChecker+Invalid, 3336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 3268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-24 02:20:23,061 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5758 Valid, 21742 Invalid, 3336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 3268 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-24 02:20:23,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32921 states. [2024-10-24 02:20:24,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32921 to 22332. [2024-10-24 02:20:24,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22332 states, 20601 states have (on average 1.6233677976797243) internal successors, (33443), 20668 states have internal predecessors, (33443), 1275 states have call successors, (1275), 391 states have call predecessors, (1275), 454 states have return successors, (2066), 1336 states have call predecessors, (2066), 1273 states have call successors, (2066) [2024-10-24 02:20:24,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22332 states to 22332 states and 36784 transitions. [2024-10-24 02:20:24,135 INFO L78 Accepts]: Start accepts. Automaton has 22332 states and 36784 transitions. Word has length 152 [2024-10-24 02:20:24,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:20:24,135 INFO L471 AbstractCegarLoop]: Abstraction has 22332 states and 36784 transitions. [2024-10-24 02:20:24,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 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) [2024-10-24 02:20:24,136 INFO L276 IsEmpty]: Start isEmpty. Operand 22332 states and 36784 transitions. [2024-10-24 02:20:24,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-24 02:20:24,145 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:20:24,145 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:20:24,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 02:20:24,146 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:20:24,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:20:24,146 INFO L85 PathProgramCache]: Analyzing trace with hash -874422456, now seen corresponding path program 1 times [2024-10-24 02:20:24,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:20:24,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945277161] [2024-10-24 02:20:24,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:20:24,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:20:24,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:24,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:20:24,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:24,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:20:24,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:24,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 02:20:24,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:24,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 02:20:24,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:24,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-24 02:20:24,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:24,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:20:24,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:20:24,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945277161] [2024-10-24 02:20:24,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945277161] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:20:24,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:20:24,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:20:24,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758816099] [2024-10-24 02:20:24,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:20:24,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:20:24,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:20:24,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:20:24,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:20:24,423 INFO L87 Difference]: Start difference. First operand 22332 states and 36784 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 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) [2024-10-24 02:20:30,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:20:30,216 INFO L93 Difference]: Finished difference Result 82441 states and 135945 transitions. [2024-10-24 02:20:30,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:20:30,216 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 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 152 [2024-10-24 02:20:30,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:20:30,377 INFO L225 Difference]: With dead ends: 82441 [2024-10-24 02:20:30,377 INFO L226 Difference]: Without dead ends: 62247 [2024-10-24 02:20:30,426 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 02:20:30,426 INFO L432 NwaCegarLoop]: 4407 mSDtfsCounter, 5425 mSDsluCounter, 17331 mSDsCounter, 0 mSdLazyCounter, 3870 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5442 SdHoareTripleChecker+Valid, 21738 SdHoareTripleChecker+Invalid, 3937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3870 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-24 02:20:30,427 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5442 Valid, 21738 Invalid, 3937 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 3870 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-24 02:20:30,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62247 states. [2024-10-24 02:20:32,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62247 to 41581. [2024-10-24 02:20:32,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41581 states, 38218 states have (on average 1.606494322047203) internal successors, (61397), 38349 states have internal predecessors, (61397), 2459 states have call successors, (2459), 775 states have call predecessors, (2459), 902 states have return successors, (4772), 2584 states have call predecessors, (4772), 2457 states have call successors, (4772) [2024-10-24 02:20:32,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41581 states to 41581 states and 68628 transitions. [2024-10-24 02:20:32,715 INFO L78 Accepts]: Start accepts. Automaton has 41581 states and 68628 transitions. Word has length 152 [2024-10-24 02:20:32,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:20:32,715 INFO L471 AbstractCegarLoop]: Abstraction has 41581 states and 68628 transitions. [2024-10-24 02:20:32,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 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) [2024-10-24 02:20:32,716 INFO L276 IsEmpty]: Start isEmpty. Operand 41581 states and 68628 transitions. [2024-10-24 02:20:32,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-24 02:20:32,734 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:20:32,734 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:20:32,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 02:20:32,735 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:20:32,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:20:32,735 INFO L85 PathProgramCache]: Analyzing trace with hash 2138372554, now seen corresponding path program 1 times [2024-10-24 02:20:32,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:20:32,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512177694] [2024-10-24 02:20:32,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:20:32,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:20:32,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:32,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:20:32,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:33,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:20:33,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:33,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 02:20:33,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:33,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 02:20:33,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:33,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-24 02:20:33,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:33,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:20:33,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:20:33,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512177694] [2024-10-24 02:20:33,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512177694] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:20:33,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:20:33,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:20:33,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630559020] [2024-10-24 02:20:33,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:20:33,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:20:33,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:20:33,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:20:33,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:20:33,090 INFO L87 Difference]: Start difference. First operand 41581 states and 68628 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 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) [2024-10-24 02:20:41,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:20:41,487 INFO L93 Difference]: Finished difference Result 156502 states and 260123 transitions. [2024-10-24 02:20:41,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:20:41,487 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 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 152 [2024-10-24 02:20:41,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:20:41,847 INFO L225 Difference]: With dead ends: 156502 [2024-10-24 02:20:41,847 INFO L226 Difference]: Without dead ends: 117059 [2024-10-24 02:20:41,950 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 02:20:41,951 INFO L432 NwaCegarLoop]: 4408 mSDtfsCounter, 5623 mSDsluCounter, 17334 mSDsCounter, 0 mSdLazyCounter, 3223 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5653 SdHoareTripleChecker+Valid, 21742 SdHoareTripleChecker+Invalid, 3291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 3223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-24 02:20:41,951 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5653 Valid, 21742 Invalid, 3291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 3223 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-24 02:20:42,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117059 states. [2024-10-24 02:20:47,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117059 to 80847. [2024-10-24 02:20:47,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80847 states, 74284 states have (on average 1.5998196112217975) internal successors, (118841), 74543 states have internal predecessors, (118841), 4763 states have call successors, (4763), 1543 states have call predecessors, (4763), 1798 states have return successors, (11578), 5016 states have call predecessors, (11578), 4761 states have call successors, (11578) [2024-10-24 02:20:47,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80847 states to 80847 states and 135182 transitions. [2024-10-24 02:20:47,338 INFO L78 Accepts]: Start accepts. Automaton has 80847 states and 135182 transitions. Word has length 152 [2024-10-24 02:20:47,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:20:47,339 INFO L471 AbstractCegarLoop]: Abstraction has 80847 states and 135182 transitions. [2024-10-24 02:20:47,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 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) [2024-10-24 02:20:47,339 INFO L276 IsEmpty]: Start isEmpty. Operand 80847 states and 135182 transitions. [2024-10-24 02:20:47,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-24 02:20:47,381 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:20:47,381 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:20:47,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 02:20:47,381 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:20:47,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:20:47,382 INFO L85 PathProgramCache]: Analyzing trace with hash 416369868, now seen corresponding path program 1 times [2024-10-24 02:20:47,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:20:47,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233172463] [2024-10-24 02:20:47,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:20:47,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:20:47,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:47,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:20:47,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:47,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:20:47,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:47,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 02:20:47,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:47,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 02:20:47,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:47,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-24 02:20:47,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:47,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:20:47,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:20:47,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233172463] [2024-10-24 02:20:47,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233172463] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:20:47,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:20:47,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:20:47,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565605962] [2024-10-24 02:20:47,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:20:47,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:20:47,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:20:47,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:20:47,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:20:47,550 INFO L87 Difference]: Start difference. First operand 80847 states and 135182 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 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)