./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label49+token_ring.15.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/Problem05_label49+token_ring.15.cil.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 6c0fd06ffbdf36f84b0329229d349f7809a823e5b3b7481a48579e7931c7ae64 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 15:44:40,452 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 15:44:40,523 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 15:44:40,527 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 15:44:40,528 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 15:44:40,555 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 15:44:40,556 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 15:44:40,556 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 15:44:40,557 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 15:44:40,557 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 15:44:40,558 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 15:44:40,558 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 15:44:40,559 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 15:44:40,559 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 15:44:40,561 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 15:44:40,562 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 15:44:40,562 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 15:44:40,562 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 15:44:40,563 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 15:44:40,563 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 15:44:40,563 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 15:44:40,567 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 15:44:40,568 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 15:44:40,568 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 15:44:40,568 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 15:44:40,569 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 15:44:40,569 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 15:44:40,569 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 15:44:40,569 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 15:44:40,570 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 15:44:40,570 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 15:44:40,570 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 15:44:40,570 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 15:44:40,571 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 15:44:40,571 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 15:44:40,571 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 15:44:40,572 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 15:44:40,572 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 15:44:40,572 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 15:44:40,573 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 15:44:40,573 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 15:44:40,574 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 15:44:40,575 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c0fd06ffbdf36f84b0329229d349f7809a823e5b3b7481a48579e7931c7ae64 [2024-11-18 15:44:40,855 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 15:44:40,881 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 15:44:40,884 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 15:44:40,885 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 15:44:40,885 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 15:44:40,887 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label49+token_ring.15.cil.c [2024-11-18 15:44:42,450 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 15:44:43,106 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 15:44:43,107 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.15.cil.c [2024-11-18 15:44:43,169 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04bf3bcaa/9d9d95c5d8b548dc98b740c217b434c1/FLAGcb3ff2b1d [2024-11-18 15:44:43,542 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04bf3bcaa/9d9d95c5d8b548dc98b740c217b434c1 [2024-11-18 15:44:43,544 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 15:44:43,546 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 15:44:43,547 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 15:44:43,547 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 15:44:43,552 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 15:44:43,552 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:44:43" (1/1) ... [2024-11-18 15:44:43,553 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@171b179e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:44:43, skipping insertion in model container [2024-11-18 15:44:43,554 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:44:43" (1/1) ... [2024-11-18 15:44:43,724 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 15:44:45,396 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.15.cil.c[380593,380606] [2024-11-18 15:44:45,431 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.15.cil.c[383339,383352] [2024-11-18 15:44:45,790 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 15:44:45,804 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 15:44:46,594 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.15.cil.c[380593,380606] [2024-11-18 15:44:46,602 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.15.cil.c[383339,383352] [2024-11-18 15:44:46,631 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 15:44:46,705 INFO L204 MainTranslator]: Completed translation [2024-11-18 15:44:46,706 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:44:46 WrapperNode [2024-11-18 15:44:46,706 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 15:44:46,708 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 15:44:46,708 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 15:44:46,708 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 15:44:46,716 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:44:46" (1/1) ... [2024-11-18 15:44:46,829 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:44:46" (1/1) ... [2024-11-18 15:44:47,192 INFO L138 Inliner]: procedures = 70, calls = 81, calls flagged for inlining = 47, calls inlined = 47, statements flattened = 13297 [2024-11-18 15:44:47,193 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 15:44:47,194 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 15:44:47,194 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 15:44:47,194 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 15:44:47,207 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:44:46" (1/1) ... [2024-11-18 15:44:47,207 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:44:46" (1/1) ... [2024-11-18 15:44:47,267 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:44:46" (1/1) ... [2024-11-18 15:44:47,497 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-18 15:44:47,498 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:44:46" (1/1) ... [2024-11-18 15:44:47,498 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:44:46" (1/1) ... [2024-11-18 15:44:47,740 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:44:46" (1/1) ... [2024-11-18 15:44:47,802 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:44:46" (1/1) ... [2024-11-18 15:44:47,830 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:44:46" (1/1) ... [2024-11-18 15:44:47,856 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:44:46" (1/1) ... [2024-11-18 15:44:47,926 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 15:44:47,927 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 15:44:47,927 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 15:44:47,927 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 15:44:47,929 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:44:46" (1/1) ... [2024-11-18 15:44:47,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 15:44:47,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 15:44:47,970 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 15:44:47,973 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 15:44:48,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 15:44:48,022 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-18 15:44:48,023 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-18 15:44:48,023 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-18 15:44:48,024 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-18 15:44:48,025 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-18 15:44:48,025 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-18 15:44:48,025 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-18 15:44:48,025 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-18 15:44:48,025 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-18 15:44:48,025 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-18 15:44:48,025 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-18 15:44:48,025 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-18 15:44:48,026 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-18 15:44:48,026 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-18 15:44:48,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 15:44:48,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 15:44:48,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 15:44:48,204 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 15:44:48,207 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 15:44:56,443 INFO L? ?]: Removed 1765 outVars from TransFormulas that were not future-live. [2024-11-18 15:44:56,443 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 15:44:56,524 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 15:44:56,525 INFO L316 CfgBuilder]: Removed 17 assume(true) statements. [2024-11-18 15:44:56,526 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:44:56 BoogieIcfgContainer [2024-11-18 15:44:56,527 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 15:44:56,529 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 15:44:56,530 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 15:44:56,533 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 15:44:56,534 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:44:43" (1/3) ... [2024-11-18 15:44:56,534 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74ca2d5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:44:56, skipping insertion in model container [2024-11-18 15:44:56,535 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:44:46" (2/3) ... [2024-11-18 15:44:56,535 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74ca2d5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:44:56, skipping insertion in model container [2024-11-18 15:44:56,536 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:44:56" (3/3) ... [2024-11-18 15:44:56,538 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label49+token_ring.15.cil.c [2024-11-18 15:44:56,552 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 15:44:56,552 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-18 15:44:56,681 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 15:44:56,692 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;@79b3cc90, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 15:44:56,692 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-18 15:44:56,708 INFO L276 IsEmpty]: Start isEmpty. Operand has 2610 states, 2571 states have (on average 1.837417347335667) internal successors, (4724), 2576 states have internal predecessors, (4724), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-18 15:44:56,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-18 15:44:56,730 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:44:56,731 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:44:56,731 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:44:56,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:44:56,736 INFO L85 PathProgramCache]: Analyzing trace with hash 407671358, now seen corresponding path program 1 times [2024-11-18 15:44:56,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:44:56,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709937577] [2024-11-18 15:44:56,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:44:56,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:44:56,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:44:57,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:44:57,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:44:57,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709937577] [2024-11-18 15:44:57,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709937577] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:44:57,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:44:57,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 15:44:57,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665007535] [2024-11-18 15:44:57,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:44:57,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 15:44:57,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:44:57,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 15:44:57,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:44:57,332 INFO L87 Difference]: Start difference. First operand has 2610 states, 2571 states have (on average 1.837417347335667) internal successors, (4724), 2576 states have internal predecessors, (4724), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:44:57,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:44:57,533 INFO L93 Difference]: Finished difference Result 5211 states and 9549 transitions. [2024-11-18 15:44:57,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 15:44:57,536 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (6), 2 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 190 [2024-11-18 15:44:57,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:44:57,567 INFO L225 Difference]: With dead ends: 5211 [2024-11-18 15:44:57,567 INFO L226 Difference]: Without dead ends: 2542 [2024-11-18 15:44:57,577 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:44:57,580 INFO L432 NwaCegarLoop]: 4683 mSDtfsCounter, 654 mSDsluCounter, 4022 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 654 SdHoareTripleChecker+Valid, 8705 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 15:44:57,581 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [654 Valid, 8705 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:44:57,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2542 states. [2024-11-18 15:44:57,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2542 to 2542. [2024-11-18 15:44:57,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2542 states, 2505 states have (on average 1.8199600798403193) internal successors, (4559), 2508 states have internal predecessors, (4559), 29 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-18 15:44:57,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2542 states to 2542 states and 4615 transitions. [2024-11-18 15:44:57,757 INFO L78 Accepts]: Start accepts. Automaton has 2542 states and 4615 transitions. Word has length 190 [2024-11-18 15:44:57,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:44:57,758 INFO L471 AbstractCegarLoop]: Abstraction has 2542 states and 4615 transitions. [2024-11-18 15:44:57,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:44:57,759 INFO L276 IsEmpty]: Start isEmpty. Operand 2542 states and 4615 transitions. [2024-11-18 15:44:57,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-18 15:44:57,768 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:44:57,768 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:44:57,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 15:44:57,769 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:44:57,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:44:57,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1223718588, now seen corresponding path program 1 times [2024-11-18 15:44:57,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:44:57,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552049995] [2024-11-18 15:44:57,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:44:57,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:44:57,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:44:57,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:44:57,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:44:57,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552049995] [2024-11-18 15:44:57,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552049995] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:44:57,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:44:57,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 15:44:57,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952576680] [2024-11-18 15:44:57,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:44:57,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 15:44:57,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:44:57,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 15:44:57,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:44:57,999 INFO L87 Difference]: Start difference. First operand 2542 states and 4615 transitions. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:44:58,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:44:58,082 INFO L93 Difference]: Finished difference Result 2946 states and 5243 transitions. [2024-11-18 15:44:58,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 15:44:58,083 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (6), 2 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 190 [2024-11-18 15:44:58,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:44:58,096 INFO L225 Difference]: With dead ends: 2946 [2024-11-18 15:44:58,096 INFO L226 Difference]: Without dead ends: 2542 [2024-11-18 15:44:58,100 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:44:58,102 INFO L432 NwaCegarLoop]: 4613 mSDtfsCounter, 640 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 640 SdHoareTripleChecker+Valid, 8571 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 15:44:58,102 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [640 Valid, 8571 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:44:58,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2542 states. [2024-11-18 15:44:58,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2542 to 2542. [2024-11-18 15:44:58,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2542 states, 2505 states have (on average 1.8195608782435129) internal successors, (4558), 2508 states have internal predecessors, (4558), 29 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-18 15:44:58,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2542 states to 2542 states and 4614 transitions. [2024-11-18 15:44:58,183 INFO L78 Accepts]: Start accepts. Automaton has 2542 states and 4614 transitions. Word has length 190 [2024-11-18 15:44:58,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:44:58,185 INFO L471 AbstractCegarLoop]: Abstraction has 2542 states and 4614 transitions. [2024-11-18 15:44:58,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:44:58,186 INFO L276 IsEmpty]: Start isEmpty. Operand 2542 states and 4614 transitions. [2024-11-18 15:44:58,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-18 15:44:58,190 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:44:58,190 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:44:58,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 15:44:58,191 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:44:58,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:44:58,192 INFO L85 PathProgramCache]: Analyzing trace with hash 575125818, now seen corresponding path program 1 times [2024-11-18 15:44:58,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:44:58,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877907399] [2024-11-18 15:44:58,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:44:58,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:44:58,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:44:58,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:44:58,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:44:58,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877907399] [2024-11-18 15:44:58,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877907399] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:44:58,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:44:58,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 15:44:58,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242140334] [2024-11-18 15:44:58,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:44:58,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:44:58,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:44:58,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:44:58,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:44:58,453 INFO L87 Difference]: Start difference. First operand 2542 states and 4614 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:44:59,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:44:59,338 INFO L93 Difference]: Finished difference Result 3394 states and 5962 transitions. [2024-11-18 15:44:59,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 15:44:59,339 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-18 15:44:59,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:44:59,356 INFO L225 Difference]: With dead ends: 3394 [2024-11-18 15:44:59,356 INFO L226 Difference]: Without dead ends: 2994 [2024-11-18 15:44:59,360 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:44:59,362 INFO L432 NwaCegarLoop]: 4471 mSDtfsCounter, 5216 mSDsluCounter, 9235 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5237 SdHoareTripleChecker+Valid, 13706 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 15:44:59,362 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5237 Valid, 13706 Invalid, 740 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [62 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 15:44:59,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2994 states. [2024-11-18 15:44:59,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2994 to 2961. [2024-11-18 15:44:59,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2961 states, 2895 states have (on average 1.7875647668393781) internal successors, (5175), 2899 states have internal predecessors, (5175), 51 states have call successors, (51), 13 states have call predecessors, (51), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2024-11-18 15:44:59,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2961 states to 2961 states and 5276 transitions. [2024-11-18 15:44:59,477 INFO L78 Accepts]: Start accepts. Automaton has 2961 states and 5276 transitions. Word has length 190 [2024-11-18 15:44:59,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:44:59,478 INFO L471 AbstractCegarLoop]: Abstraction has 2961 states and 5276 transitions. [2024-11-18 15:44:59,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:44:59,478 INFO L276 IsEmpty]: Start isEmpty. Operand 2961 states and 5276 transitions. [2024-11-18 15:44:59,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-18 15:44:59,482 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:44:59,482 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:44:59,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 15:44:59,483 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:44:59,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:44:59,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1271900618, now seen corresponding path program 1 times [2024-11-18 15:44:59,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:44:59,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923842877] [2024-11-18 15:44:59,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:44:59,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:44:59,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:44:59,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:44:59,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:44:59,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923842877] [2024-11-18 15:44:59,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923842877] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:44:59,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:44:59,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:44:59,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574762177] [2024-11-18 15:44:59,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:44:59,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:44:59,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:44:59,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:44:59,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:44:59,766 INFO L87 Difference]: Start difference. First operand 2961 states and 5276 transitions. Second operand has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:45:00,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:45:00,879 INFO L93 Difference]: Finished difference Result 4315 states and 7443 transitions. [2024-11-18 15:45:00,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:45:00,879 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-18 15:45:00,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:45:00,895 INFO L225 Difference]: With dead ends: 4315 [2024-11-18 15:45:00,896 INFO L226 Difference]: Without dead ends: 3496 [2024-11-18 15:45:00,899 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:45:00,900 INFO L432 NwaCegarLoop]: 4832 mSDtfsCounter, 5227 mSDsluCounter, 14570 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5248 SdHoareTripleChecker+Valid, 19402 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-18 15:45:00,901 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5248 Valid, 19402 Invalid, 1198 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [35 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-18 15:45:00,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3496 states. [2024-11-18 15:45:00,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3496 to 3351. [2024-11-18 15:45:00,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3351 states, 3256 states have (on average 1.761056511056511) internal successors, (5734), 3261 states have internal predecessors, (5734), 73 states have call successors, (73), 19 states have call predecessors, (73), 20 states have return successors, (75), 72 states have call predecessors, (75), 71 states have call successors, (75) [2024-11-18 15:45:00,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3351 states to 3351 states and 5882 transitions. [2024-11-18 15:45:00,988 INFO L78 Accepts]: Start accepts. Automaton has 3351 states and 5882 transitions. Word has length 190 [2024-11-18 15:45:00,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:45:00,988 INFO L471 AbstractCegarLoop]: Abstraction has 3351 states and 5882 transitions. [2024-11-18 15:45:00,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:45:00,989 INFO L276 IsEmpty]: Start isEmpty. Operand 3351 states and 5882 transitions. [2024-11-18 15:45:00,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-18 15:45:00,991 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:45:00,992 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:45:00,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 15:45:00,992 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:45:00,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:45:00,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1099816248, now seen corresponding path program 1 times [2024-11-18 15:45:00,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:45:00,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180880315] [2024-11-18 15:45:00,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:45:00,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:45:01,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:45:01,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:45:01,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:45:01,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180880315] [2024-11-18 15:45:01,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180880315] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:45:01,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:45:01,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:45:01,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216755182] [2024-11-18 15:45:01,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:45:01,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:45:01,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:45:01,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:45:01,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:45:01,212 INFO L87 Difference]: Start difference. First operand 3351 states and 5882 transitions. Second operand has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:45:02,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:45:02,206 INFO L93 Difference]: Finished difference Result 5553 states and 9396 transitions. [2024-11-18 15:45:02,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:45:02,206 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-18 15:45:02,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:45:02,226 INFO L225 Difference]: With dead ends: 5553 [2024-11-18 15:45:02,227 INFO L226 Difference]: Without dead ends: 4344 [2024-11-18 15:45:02,231 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:45:02,232 INFO L432 NwaCegarLoop]: 4824 mSDtfsCounter, 5219 mSDsluCounter, 14548 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5240 SdHoareTripleChecker+Valid, 19372 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-18 15:45:02,233 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5240 Valid, 19372 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-18 15:45:02,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4344 states. [2024-11-18 15:45:02,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4344 to 4181. [2024-11-18 15:45:02,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4181 states, 4026 states have (on average 1.725037257824143) internal successors, (6945), 4035 states have internal predecessors, (6945), 117 states have call successors, (117), 31 states have call predecessors, (117), 36 states have return successors, (131), 118 states have call predecessors, (131), 115 states have call successors, (131) [2024-11-18 15:45:02,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4181 states to 4181 states and 7193 transitions. [2024-11-18 15:45:02,350 INFO L78 Accepts]: Start accepts. Automaton has 4181 states and 7193 transitions. Word has length 190 [2024-11-18 15:45:02,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:45:02,351 INFO L471 AbstractCegarLoop]: Abstraction has 4181 states and 7193 transitions. [2024-11-18 15:45:02,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:45:02,351 INFO L276 IsEmpty]: Start isEmpty. Operand 4181 states and 7193 transitions. [2024-11-18 15:45:02,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-18 15:45:02,354 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:45:02,354 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:45:02,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 15:45:02,355 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:45:02,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:45:02,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1598373050, now seen corresponding path program 1 times [2024-11-18 15:45:02,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:45:02,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096101100] [2024-11-18 15:45:02,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:45:02,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:45:02,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:45:02,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:45:02,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:45:02,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096101100] [2024-11-18 15:45:02,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096101100] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:45:02,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:45:02,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:45:02,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162841724] [2024-11-18 15:45:02,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:45:02,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:45:02,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:45:02,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:45:02,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:45:02,588 INFO L87 Difference]: Start difference. First operand 4181 states and 7193 transitions. Second operand has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:45:03,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:45:03,753 INFO L93 Difference]: Finished difference Result 8235 states and 13717 transitions. [2024-11-18 15:45:03,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:45:03,754 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-18 15:45:03,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:45:03,792 INFO L225 Difference]: With dead ends: 8235 [2024-11-18 15:45:03,793 INFO L226 Difference]: Without dead ends: 6196 [2024-11-18 15:45:03,803 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:45:03,806 INFO L432 NwaCegarLoop]: 4821 mSDtfsCounter, 5214 mSDsluCounter, 14539 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5235 SdHoareTripleChecker+Valid, 19360 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-18 15:45:03,806 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5235 Valid, 19360 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-18 15:45:03,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6196 states. [2024-11-18 15:45:04,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6196 to 5988. [2024-11-18 15:45:04,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5988 states, 5707 states have (on average 1.6893288943402838) internal successors, (9641), 5730 states have internal predecessors, (9641), 205 states have call successors, (205), 55 states have call predecessors, (205), 74 states have return successors, (267), 210 states have call predecessors, (267), 203 states have call successors, (267) [2024-11-18 15:45:04,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5988 states to 5988 states and 10113 transitions. [2024-11-18 15:45:04,076 INFO L78 Accepts]: Start accepts. Automaton has 5988 states and 10113 transitions. Word has length 190 [2024-11-18 15:45:04,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:45:04,078 INFO L471 AbstractCegarLoop]: Abstraction has 5988 states and 10113 transitions. [2024-11-18 15:45:04,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:45:04,079 INFO L276 IsEmpty]: Start isEmpty. Operand 5988 states and 10113 transitions. [2024-11-18 15:45:04,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-18 15:45:04,084 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:45:04,084 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:45:04,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 15:45:04,085 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:45:04,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:45:04,085 INFO L85 PathProgramCache]: Analyzing trace with hash -2126322440, now seen corresponding path program 1 times [2024-11-18 15:45:04,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:45:04,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659015971] [2024-11-18 15:45:04,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:45:04,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:45:04,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:45:04,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:45:04,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:45:04,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659015971] [2024-11-18 15:45:04,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659015971] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:45:04,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:45:04,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:45:04,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860370987] [2024-11-18 15:45:04,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:45:04,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:45:04,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:45:04,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:45:04,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:45:04,330 INFO L87 Difference]: Start difference. First operand 5988 states and 10113 transitions. Second operand has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:45:05,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:45:05,584 INFO L93 Difference]: Finished difference Result 14168 states and 23539 transitions. [2024-11-18 15:45:05,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:45:05,585 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-18 15:45:05,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:45:05,644 INFO L225 Difference]: With dead ends: 14168 [2024-11-18 15:45:05,644 INFO L226 Difference]: Without dead ends: 10322 [2024-11-18 15:45:05,662 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:45:05,665 INFO L432 NwaCegarLoop]: 4818 mSDtfsCounter, 5209 mSDsluCounter, 14530 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5230 SdHoareTripleChecker+Valid, 19348 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-18 15:45:05,665 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5230 Valid, 19348 Invalid, 1198 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [35 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-18 15:45:05,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10322 states. [2024-11-18 15:45:06,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10322 to 10025. [2024-11-18 15:45:06,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10025 states, 9474 states have (on average 1.6699387798184504) internal successors, (15821), 9543 states have internal predecessors, (15821), 381 states have call successors, (381), 103 states have call predecessors, (381), 168 states have return successors, (635), 394 states have call predecessors, (635), 379 states have call successors, (635) [2024-11-18 15:45:06,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10025 states to 10025 states and 16837 transitions. [2024-11-18 15:45:06,110 INFO L78 Accepts]: Start accepts. Automaton has 10025 states and 16837 transitions. Word has length 190 [2024-11-18 15:45:06,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:45:06,110 INFO L471 AbstractCegarLoop]: Abstraction has 10025 states and 16837 transitions. [2024-11-18 15:45:06,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:45:06,111 INFO L276 IsEmpty]: Start isEmpty. Operand 10025 states and 16837 transitions. [2024-11-18 15:45:06,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-18 15:45:06,116 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:45:06,116 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:45:06,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 15:45:06,117 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:45:06,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:45:06,117 INFO L85 PathProgramCache]: Analyzing trace with hash -722453254, now seen corresponding path program 1 times [2024-11-18 15:45:06,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:45:06,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370758350] [2024-11-18 15:45:06,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:45:06,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:45:06,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:45:06,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:45:06,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:45:06,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370758350] [2024-11-18 15:45:06,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370758350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:45:06,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:45:06,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:45:06,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899473487] [2024-11-18 15:45:06,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:45:06,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:45:06,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:45:06,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:45:06,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:45:06,296 INFO L87 Difference]: Start difference. First operand 10025 states and 16837 transitions. Second operand has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:45:07,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:45:07,447 INFO L93 Difference]: Finished difference Result 27667 states and 46701 transitions. [2024-11-18 15:45:07,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:45:07,448 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-18 15:45:07,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:45:07,537 INFO L225 Difference]: With dead ends: 27667 [2024-11-18 15:45:07,538 INFO L226 Difference]: Without dead ends: 19784 [2024-11-18 15:45:07,577 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:45:07,578 INFO L432 NwaCegarLoop]: 4509 mSDtfsCounter, 5245 mSDsluCounter, 13782 mSDsCounter, 0 mSdLazyCounter, 952 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5266 SdHoareTripleChecker+Valid, 18291 SdHoareTripleChecker+Invalid, 1012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 15:45:07,579 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5266 Valid, 18291 Invalid, 1012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 952 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 15:45:07,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19784 states. [2024-11-18 15:45:08,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19784 to 19314. [2024-11-18 15:45:08,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19314 states, 18169 states have (on average 1.6754361825086685) internal successors, (30441), 18384 states have internal predecessors, (30441), 733 states have call successors, (733), 199 states have call predecessors, (733), 410 states have return successors, (1755), 762 states have call predecessors, (1755), 731 states have call successors, (1755) [2024-11-18 15:45:08,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19314 states to 19314 states and 32929 transitions. [2024-11-18 15:45:08,334 INFO L78 Accepts]: Start accepts. Automaton has 19314 states and 32929 transitions. Word has length 190 [2024-11-18 15:45:08,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:45:08,334 INFO L471 AbstractCegarLoop]: Abstraction has 19314 states and 32929 transitions. [2024-11-18 15:45:08,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:45:08,335 INFO L276 IsEmpty]: Start isEmpty. Operand 19314 states and 32929 transitions. [2024-11-18 15:45:08,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-18 15:45:08,343 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:45:08,343 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:45:08,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 15:45:08,344 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:45:08,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:45:08,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1508451144, now seen corresponding path program 1 times [2024-11-18 15:45:08,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:45:08,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625995523] [2024-11-18 15:45:08,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:45:08,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:45:08,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:45:08,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:45:08,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:45:08,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625995523] [2024-11-18 15:45:08,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625995523] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:45:08,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:45:08,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 15:45:08,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335254781] [2024-11-18 15:45:08,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:45:08,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:45:08,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:45:08,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:45:08,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:45:08,495 INFO L87 Difference]: Start difference. First operand 19314 states and 32929 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:45:09,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:45:09,331 INFO L93 Difference]: Finished difference Result 41876 states and 73002 transitions. [2024-11-18 15:45:09,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 15:45:09,332 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-18 15:45:09,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:45:09,440 INFO L225 Difference]: With dead ends: 41876 [2024-11-18 15:45:09,441 INFO L226 Difference]: Without dead ends: 24704 [2024-11-18 15:45:09,501 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:45:09,502 INFO L432 NwaCegarLoop]: 4448 mSDtfsCounter, 4845 mSDsluCounter, 8727 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4866 SdHoareTripleChecker+Valid, 13175 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 15:45:09,502 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4866 Valid, 13175 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 15:45:09,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24704 states. [2024-11-18 15:45:10,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24704 to 19314. [2024-11-18 15:45:10,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19314 states, 18169 states have (on average 1.673619902030932) internal successors, (30408), 18384 states have internal predecessors, (30408), 733 states have call successors, (733), 199 states have call predecessors, (733), 410 states have return successors, (1755), 762 states have call predecessors, (1755), 731 states have call successors, (1755) [2024-11-18 15:45:10,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19314 states to 19314 states and 32896 transitions. [2024-11-18 15:45:10,349 INFO L78 Accepts]: Start accepts. Automaton has 19314 states and 32896 transitions. Word has length 190 [2024-11-18 15:45:10,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:45:10,350 INFO L471 AbstractCegarLoop]: Abstraction has 19314 states and 32896 transitions. [2024-11-18 15:45:10,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:45:10,350 INFO L276 IsEmpty]: Start isEmpty. Operand 19314 states and 32896 transitions. [2024-11-18 15:45:10,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-18 15:45:10,361 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:45:10,361 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:45:10,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 15:45:10,362 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:45:10,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:45:10,362 INFO L85 PathProgramCache]: Analyzing trace with hash -841069254, now seen corresponding path program 1 times [2024-11-18 15:45:10,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:45:10,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618573348] [2024-11-18 15:45:10,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:45:10,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:45:10,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:45:10,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:45:10,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:45:10,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618573348] [2024-11-18 15:45:10,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618573348] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:45:10,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:45:10,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:45:10,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103453866] [2024-11-18 15:45:10,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:45:10,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:45:10,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:45:10,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:45:10,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:45:10,541 INFO L87 Difference]: Start difference. First operand 19314 states and 32896 transitions. Second operand has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:45:12,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:45:12,405 INFO L93 Difference]: Finished difference Result 59072 states and 102988 transitions. [2024-11-18 15:45:12,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:45:12,406 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-18 15:45:12,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:45:12,604 INFO L225 Difference]: With dead ends: 59072 [2024-11-18 15:45:12,604 INFO L226 Difference]: Without dead ends: 41900 [2024-11-18 15:45:12,674 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:45:12,675 INFO L432 NwaCegarLoop]: 4807 mSDtfsCounter, 5191 mSDsluCounter, 14498 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5212 SdHoareTripleChecker+Valid, 19305 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-18 15:45:12,676 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5212 Valid, 19305 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-18 15:45:12,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41900 states. [2024-11-18 15:45:14,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41900 to 41132. [2024-11-18 15:45:14,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41132 states, 38637 states have (on average 1.69769909672076) internal successors, (65594), 39306 states have internal predecessors, (65594), 1437 states have call successors, (1437), 391 states have call predecessors, (1437), 1056 states have return successors, (5531), 1498 states have call predecessors, (5531), 1435 states have call successors, (5531) [2024-11-18 15:45:14,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41132 states to 41132 states and 72562 transitions. [2024-11-18 15:45:14,396 INFO L78 Accepts]: Start accepts. Automaton has 41132 states and 72562 transitions. Word has length 190 [2024-11-18 15:45:14,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:45:14,397 INFO L471 AbstractCegarLoop]: Abstraction has 41132 states and 72562 transitions. [2024-11-18 15:45:14,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:45:14,397 INFO L276 IsEmpty]: Start isEmpty. Operand 41132 states and 72562 transitions. [2024-11-18 15:45:14,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-18 15:45:14,411 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:45:14,411 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:45:14,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 15:45:14,412 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:45:14,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:45:14,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1258669176, now seen corresponding path program 1 times [2024-11-18 15:45:14,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:45:14,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090216842] [2024-11-18 15:45:14,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:45:14,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:45:14,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:45:14,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:45:14,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:45:14,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090216842] [2024-11-18 15:45:14,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090216842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:45:14,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:45:14,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:45:14,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675810698] [2024-11-18 15:45:14,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:45:14,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:45:14,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:45:14,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:45:14,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:45:14,570 INFO L87 Difference]: Start difference. First operand 41132 states and 72562 transitions. Second operand has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:45:17,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:45:17,728 INFO L93 Difference]: Finished difference Result 134608 states and 246804 transitions. [2024-11-18 15:45:17,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:45:17,728 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-18 15:45:17,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:45:18,164 INFO L225 Difference]: With dead ends: 134608 [2024-11-18 15:45:18,165 INFO L226 Difference]: Without dead ends: 95618 [2024-11-18 15:45:18,296 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:45:18,297 INFO L432 NwaCegarLoop]: 4804 mSDtfsCounter, 5186 mSDsluCounter, 14489 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5207 SdHoareTripleChecker+Valid, 19293 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-18 15:45:18,297 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5207 Valid, 19293 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-18 15:45:18,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95618 states. [2024-11-18 15:45:21,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95618 to 94245. [2024-11-18 15:45:21,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94245 states, 88564 states have (on average 1.7324194932478207) internal successors, (153430), 90627 states have internal predecessors, (153430), 2845 states have call successors, (2845), 775 states have call predecessors, (2845), 2834 states have return successors, (19227), 2970 states have call predecessors, (19227), 2843 states have call successors, (19227) [2024-11-18 15:45:22,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94245 states to 94245 states and 175502 transitions. [2024-11-18 15:45:22,569 INFO L78 Accepts]: Start accepts. Automaton has 94245 states and 175502 transitions. Word has length 190 [2024-11-18 15:45:22,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:45:22,570 INFO L471 AbstractCegarLoop]: Abstraction has 94245 states and 175502 transitions. [2024-11-18 15:45:22,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:45:22,571 INFO L276 IsEmpty]: Start isEmpty. Operand 94245 states and 175502 transitions. [2024-11-18 15:45:22,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-18 15:45:22,605 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:45:22,605 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:45:22,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 15:45:22,606 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:45:22,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:45:22,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1603497338, now seen corresponding path program 1 times [2024-11-18 15:45:22,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:45:22,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316018465] [2024-11-18 15:45:22,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:45:22,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:45:22,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:45:22,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:45:22,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:45:22,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316018465] [2024-11-18 15:45:22,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316018465] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:45:22,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:45:22,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 15:45:22,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028919917] [2024-11-18 15:45:22,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:45:22,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:45:22,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:45:22,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:45:22,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:45:22,766 INFO L87 Difference]: Start difference. First operand 94245 states and 175502 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:45:26,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:45:26,724 INFO L93 Difference]: Finished difference Result 225750 states and 435892 transitions. [2024-11-18 15:45:26,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 15:45:26,725 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-18 15:45:26,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:45:27,629 INFO L225 Difference]: With dead ends: 225750 [2024-11-18 15:45:27,629 INFO L226 Difference]: Without dead ends: 133647 [2024-11-18 15:45:27,788 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:45:27,789 INFO L432 NwaCegarLoop]: 4439 mSDtfsCounter, 4839 mSDsluCounter, 8710 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4860 SdHoareTripleChecker+Valid, 13149 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 15:45:27,789 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4860 Valid, 13149 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 15:45:27,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133647 states. [2024-11-18 15:45:32,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133647 to 94245. [2024-11-18 15:45:32,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94245 states, 88564 states have (on average 1.7309629194706653) internal successors, (153301), 90627 states have internal predecessors, (153301), 2845 states have call successors, (2845), 775 states have call predecessors, (2845), 2834 states have return successors, (19227), 2970 states have call predecessors, (19227), 2843 states have call successors, (19227) [2024-11-18 15:45:32,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94245 states to 94245 states and 175373 transitions. [2024-11-18 15:45:32,981 INFO L78 Accepts]: Start accepts. Automaton has 94245 states and 175373 transitions. Word has length 190 [2024-11-18 15:45:32,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:45:32,982 INFO L471 AbstractCegarLoop]: Abstraction has 94245 states and 175373 transitions. [2024-11-18 15:45:32,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:45:32,982 INFO L276 IsEmpty]: Start isEmpty. Operand 94245 states and 175373 transitions. [2024-11-18 15:45:33,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-18 15:45:33,017 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:45:33,017 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:45:33,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 15:45:33,018 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:45:33,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:45:33,018 INFO L85 PathProgramCache]: Analyzing trace with hash -165974276, now seen corresponding path program 1 times [2024-11-18 15:45:33,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:45:33,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972867801] [2024-11-18 15:45:33,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:45:33,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:45:33,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:45:33,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:45:33,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:45:33,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972867801] [2024-11-18 15:45:33,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972867801] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:45:33,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:45:33,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:45:33,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365289959] [2024-11-18 15:45:33,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:45:33,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:45:33,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:45:33,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:45:33,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:45:33,179 INFO L87 Difference]: Start difference. First operand 94245 states and 175373 transitions. Second operand has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)