./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label11.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d869f131-bcba-47e7-a7d9-63b80fd2794f/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d869f131-bcba-47e7-a7d9-63b80fd2794f/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d869f131-bcba-47e7-a7d9-63b80fd2794f/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d869f131-bcba-47e7-a7d9-63b80fd2794f/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label11.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d869f131-bcba-47e7-a7d9-63b80fd2794f/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d869f131-bcba-47e7-a7d9-63b80fd2794f/bin/uautomizer-verify-qhAvR1uOyd --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 05304907b173f35ae86ead9bea08abf85c97bbd94fd3cf389c54ce6fac582ae4 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:10:59,613 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:10:59,704 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d869f131-bcba-47e7-a7d9-63b80fd2794f/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 14:10:59,711 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:10:59,711 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:10:59,750 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:10:59,751 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:10:59,751 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:10:59,751 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 14:10:59,751 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 14:10:59,751 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 14:10:59,751 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 14:10:59,752 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:10:59,752 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:10:59,752 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:10:59,753 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:10:59,753 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 14:10:59,753 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 14:10:59,754 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 14:10:59,754 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 14:10:59,754 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:10:59,754 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 14:10:59,755 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 14:10:59,755 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 14:10:59,755 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:10:59,755 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 14:10:59,755 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 14:10:59,755 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:10:59,756 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:10:59,756 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:10:59,756 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 14:10:59,756 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 14:10:59,756 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:10:59,756 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:10:59,757 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 14:10:59,757 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 14:10:59,757 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 14:10:59,757 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 14:10:59,757 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 14:10:59,757 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 14:10:59,757 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 14:10:59,757 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 14:10:59,757 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d869f131-bcba-47e7-a7d9-63b80fd2794f/bin/uautomizer-verify-qhAvR1uOyd 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 -> 05304907b173f35ae86ead9bea08abf85c97bbd94fd3cf389c54ce6fac582ae4 [2024-11-13 14:11:00,108 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:11:00,122 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:11:00,124 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:11:00,125 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:11:00,126 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:11:00,127 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d869f131-bcba-47e7-a7d9-63b80fd2794f/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/eca-rers2012/Problem10_label11.c Unable to find full path for "g++" [2024-11-13 14:11:02,037 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:11:02,427 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:11:02,427 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d869f131-bcba-47e7-a7d9-63b80fd2794f/sv-benchmarks/c/eca-rers2012/Problem10_label11.c [2024-11-13 14:11:02,450 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d869f131-bcba-47e7-a7d9-63b80fd2794f/bin/uautomizer-verify-qhAvR1uOyd/data/80bd5f9eb/ffbd058944e545389f33a5a44dafd866/FLAGe916e5a36 [2024-11-13 14:11:02,470 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d869f131-bcba-47e7-a7d9-63b80fd2794f/bin/uautomizer-verify-qhAvR1uOyd/data/80bd5f9eb/ffbd058944e545389f33a5a44dafd866 [2024-11-13 14:11:02,472 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:11:02,474 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:11:02,476 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:11:02,476 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:11:02,483 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:11:02,485 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:11:02" (1/1) ... [2024-11-13 14:11:02,487 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19e6825e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:11:02, skipping insertion in model container [2024-11-13 14:11:02,487 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:11:02" (1/1) ... [2024-11-13 14:11:02,540 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:11:02,797 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d869f131-bcba-47e7-a7d9-63b80fd2794f/sv-benchmarks/c/eca-rers2012/Problem10_label11.c[6968,6981] [2024-11-13 14:11:02,941 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:11:02,951 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:11:02,985 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d869f131-bcba-47e7-a7d9-63b80fd2794f/sv-benchmarks/c/eca-rers2012/Problem10_label11.c[6968,6981] [2024-11-13 14:11:03,056 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:11:03,076 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:11:03,077 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:11:03 WrapperNode [2024-11-13 14:11:03,077 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:11:03,078 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:11:03,078 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:11:03,078 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:11:03,091 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:11:03" (1/1) ... [2024-11-13 14:11:03,112 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:11:03" (1/1) ... [2024-11-13 14:11:03,176 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 597 [2024-11-13 14:11:03,177 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:11:03,177 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:11:03,177 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:11:03,177 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:11:03,185 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:11:03" (1/1) ... [2024-11-13 14:11:03,185 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:11:03" (1/1) ... [2024-11-13 14:11:03,191 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:11:03" (1/1) ... [2024-11-13 14:11:03,215 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]. [2024-11-13 14:11:03,216 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:11:03" (1/1) ... [2024-11-13 14:11:03,216 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:11:03" (1/1) ... [2024-11-13 14:11:03,238 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:11:03" (1/1) ... [2024-11-13 14:11:03,249 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:11:03" (1/1) ... [2024-11-13 14:11:03,259 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:11:03" (1/1) ... [2024-11-13 14:11:03,267 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:11:03" (1/1) ... [2024-11-13 14:11:03,278 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:11:03,279 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:11:03,279 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:11:03,279 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:11:03,281 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:11:03" (1/1) ... [2024-11-13 14:11:03,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:11:03,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d869f131-bcba-47e7-a7d9-63b80fd2794f/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:11:03,318 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d869f131-bcba-47e7-a7d9-63b80fd2794f/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 14:11:03,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d869f131-bcba-47e7-a7d9-63b80fd2794f/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 14:11:03,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 14:11:03,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 14:11:03,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:11:03,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:11:03,438 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:11:03,439 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:11:04,878 INFO L? ?]: Removed 84 outVars from TransFormulas that were not future-live. [2024-11-13 14:11:04,878 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:11:04,900 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:11:04,902 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 14:11:04,903 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:11:04 BoogieIcfgContainer [2024-11-13 14:11:04,903 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:11:04,905 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 14:11:04,906 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 14:11:04,912 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 14:11:04,913 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:11:02" (1/3) ... [2024-11-13 14:11:04,913 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49138f1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:11:04, skipping insertion in model container [2024-11-13 14:11:04,913 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:11:03" (2/3) ... [2024-11-13 14:11:04,914 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49138f1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:11:04, skipping insertion in model container [2024-11-13 14:11:04,914 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:11:04" (3/3) ... [2024-11-13 14:11:04,916 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label11.c [2024-11-13 14:11:04,932 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 14:11:04,934 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem10_label11.c that has 1 procedures, 206 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 14:11:05,010 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 14:11:05,026 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;@20ac6a8b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 14:11:05,026 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 14:11:05,033 INFO L276 IsEmpty]: Start isEmpty. Operand has 206 states, 204 states have (on average 1.6862745098039216) internal successors, (344), 205 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:11:05,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-13 14:11:05,042 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:11:05,042 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] [2024-11-13 14:11:05,043 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:11:05,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:11:05,051 INFO L85 PathProgramCache]: Analyzing trace with hash 526413864, now seen corresponding path program 1 times [2024-11-13 14:11:05,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:11:05,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533244156] [2024-11-13 14:11:05,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:11:05,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:11:05,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:11:05,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:11:05,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:11:05,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533244156] [2024-11-13 14:11:05,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533244156] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:11:05,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:11:05,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:11:05,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855073473] [2024-11-13 14:11:05,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:11:05,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:11:05,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:11:05,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:11:05,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:11:05,647 INFO L87 Difference]: Start difference. First operand has 206 states, 204 states have (on average 1.6862745098039216) internal successors, (344), 205 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:11:06,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:11:06,712 INFO L93 Difference]: Finished difference Result 552 states and 966 transitions. [2024-11-13 14:11:06,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:11:06,717 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-13 14:11:06,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:11:06,727 INFO L225 Difference]: With dead ends: 552 [2024-11-13 14:11:06,727 INFO L226 Difference]: Without dead ends: 282 [2024-11-13 14:11:06,731 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:11:06,736 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 102 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:11:06,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 120 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-13 14:11:06,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2024-11-13 14:11:06,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2024-11-13 14:11:06,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 281 states have (on average 1.3416370106761566) internal successors, (377), 281 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:11:06,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 377 transitions. [2024-11-13 14:11:06,802 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 377 transitions. Word has length 61 [2024-11-13 14:11:06,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:11:06,802 INFO L471 AbstractCegarLoop]: Abstraction has 282 states and 377 transitions. [2024-11-13 14:11:06,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:11:06,803 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 377 transitions. [2024-11-13 14:11:06,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-13 14:11:06,807 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:11:06,807 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:11:06,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 14:11:06,807 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:11:06,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:11:06,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1551591941, now seen corresponding path program 1 times [2024-11-13 14:11:06,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:11:06,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265182297] [2024-11-13 14:11:06,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:11:06,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:11:06,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:11:07,241 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:11:07,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:11:07,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265182297] [2024-11-13 14:11:07,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265182297] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:11:07,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:11:07,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:11:07,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842337086] [2024-11-13 14:11:07,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:11:07,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:11:07,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:11:07,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:11:07,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:11:07,246 INFO L87 Difference]: Start difference. First operand 282 states and 377 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:11:07,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:11:07,887 INFO L93 Difference]: Finished difference Result 701 states and 967 transitions. [2024-11-13 14:11:07,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:11:07,888 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2024-11-13 14:11:07,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:11:07,890 INFO L225 Difference]: With dead ends: 701 [2024-11-13 14:11:07,891 INFO L226 Difference]: Without dead ends: 421 [2024-11-13 14:11:07,892 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 [2024-11-13 14:11:07,892 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 85 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 14:11:07,893 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 215 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 14:11:07,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2024-11-13 14:11:07,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 421. [2024-11-13 14:11:07,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 420 states have (on average 1.2523809523809524) internal successors, (526), 420 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:11:07,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 526 transitions. [2024-11-13 14:11:07,915 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 526 transitions. Word has length 127 [2024-11-13 14:11:07,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:11:07,915 INFO L471 AbstractCegarLoop]: Abstraction has 421 states and 526 transitions. [2024-11-13 14:11:07,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:11:07,916 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 526 transitions. [2024-11-13 14:11:07,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-13 14:11:07,918 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:11:07,918 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:11:07,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 14:11:07,919 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:11:07,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:11:07,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1490072981, now seen corresponding path program 1 times [2024-11-13 14:11:07,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:11:07,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194838151] [2024-11-13 14:11:07,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:11:07,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:11:07,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:11:08,429 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:11:08,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:11:08,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194838151] [2024-11-13 14:11:08,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194838151] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:11:08,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:11:08,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:11:08,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477441013] [2024-11-13 14:11:08,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:11:08,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:11:08,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:11:08,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:11:08,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:11:08,434 INFO L87 Difference]: Start difference. First operand 421 states and 526 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:11:08,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:11:08,999 INFO L93 Difference]: Finished difference Result 979 states and 1209 transitions. [2024-11-13 14:11:09,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:11:09,002 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2024-11-13 14:11:09,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:11:09,008 INFO L225 Difference]: With dead ends: 979 [2024-11-13 14:11:09,008 INFO L226 Difference]: Without dead ends: 560 [2024-11-13 14:11:09,009 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:11:09,012 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 68 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:11:09,012 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 77 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 14:11:09,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2024-11-13 14:11:09,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2024-11-13 14:11:09,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 559 states have (on average 1.2075134168157424) internal successors, (675), 559 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:11:09,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 675 transitions. [2024-11-13 14:11:09,038 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 675 transitions. Word has length 134 [2024-11-13 14:11:09,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:11:09,038 INFO L471 AbstractCegarLoop]: Abstraction has 560 states and 675 transitions. [2024-11-13 14:11:09,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:11:09,039 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 675 transitions. [2024-11-13 14:11:09,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-13 14:11:09,041 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:11:09,041 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:11:09,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 14:11:09,041 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:11:09,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:11:09,047 INFO L85 PathProgramCache]: Analyzing trace with hash -439013008, now seen corresponding path program 1 times [2024-11-13 14:11:09,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:11:09,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625073400] [2024-11-13 14:11:09,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:11:09,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:11:09,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:11:09,661 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:11:09,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:11:09,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625073400] [2024-11-13 14:11:09,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625073400] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:11:09,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:11:09,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 14:11:09,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799745551] [2024-11-13 14:11:09,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:11:09,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:11:09,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:11:09,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:11:09,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:11:09,664 INFO L87 Difference]: Start difference. First operand 560 states and 675 transitions. Second operand has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 6 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:11:10,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:11:10,316 INFO L93 Difference]: Finished difference Result 1034 states and 1254 transitions. [2024-11-13 14:11:10,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:11:10,317 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 6 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2024-11-13 14:11:10,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:11:10,319 INFO L225 Difference]: With dead ends: 1034 [2024-11-13 14:11:10,320 INFO L226 Difference]: Without dead ends: 560 [2024-11-13 14:11:10,321 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:11:10,321 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 142 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 720 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 14:11:10,322 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 22 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 720 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 14:11:10,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2024-11-13 14:11:10,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2024-11-13 14:11:10,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 559 states have (on average 1.2021466905187836) internal successors, (672), 559 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:11:10,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 672 transitions. [2024-11-13 14:11:10,339 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 672 transitions. Word has length 136 [2024-11-13 14:11:10,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:11:10,339 INFO L471 AbstractCegarLoop]: Abstraction has 560 states and 672 transitions. [2024-11-13 14:11:10,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 6 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:11:10,340 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 672 transitions. [2024-11-13 14:11:10,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-13 14:11:10,342 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:11:10,343 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:11:10,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 14:11:10,343 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:11:10,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:11:10,344 INFO L85 PathProgramCache]: Analyzing trace with hash 281721240, now seen corresponding path program 1 times [2024-11-13 14:11:10,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:11:10,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597664091] [2024-11-13 14:11:10,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:11:10,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:11:10,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:11:10,513 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:11:10,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:11:10,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597664091] [2024-11-13 14:11:10,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597664091] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:11:10,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:11:10,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:11:10,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733854329] [2024-11-13 14:11:10,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:11:10,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:11:10,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:11:10,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:11:10,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:11:10,518 INFO L87 Difference]: Start difference. First operand 560 states and 672 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 2 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:11:11,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:11:11,132 INFO L93 Difference]: Finished difference Result 1257 states and 1566 transitions. [2024-11-13 14:11:11,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:11:11,133 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 2 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 152 [2024-11-13 14:11:11,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:11:11,136 INFO L225 Difference]: With dead ends: 1257 [2024-11-13 14:11:11,136 INFO L226 Difference]: Without dead ends: 838 [2024-11-13 14:11:11,137 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:11:11,140 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 87 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 14:11:11,140 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 34 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 14:11:11,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2024-11-13 14:11:11,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 838. [2024-11-13 14:11:11,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 837 states have (on average 1.1995221027479093) internal successors, (1004), 837 states have internal predecessors, (1004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:11:11,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1004 transitions. [2024-11-13 14:11:11,165 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1004 transitions. Word has length 152 [2024-11-13 14:11:11,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:11:11,167 INFO L471 AbstractCegarLoop]: Abstraction has 838 states and 1004 transitions. [2024-11-13 14:11:11,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 2 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:11:11,167 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1004 transitions. [2024-11-13 14:11:11,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-13 14:11:11,169 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:11:11,169 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:11:11,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 14:11:11,169 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:11:11,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:11:11,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1961137206, now seen corresponding path program 1 times [2024-11-13 14:11:11,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:11:11,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617036920] [2024-11-13 14:11:11,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:11:11,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:11:11,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:11:11,409 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:11:11,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:11:11,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617036920] [2024-11-13 14:11:11,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617036920] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:11:11,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:11:11,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:11:11,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375402616] [2024-11-13 14:11:11,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:11:11,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:11:11,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:11:11,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:11:11,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:11:11,412 INFO L87 Difference]: Start difference. First operand 838 states and 1004 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:11:11,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:11:11,997 INFO L93 Difference]: Finished difference Result 1674 states and 2052 transitions. [2024-11-13 14:11:11,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:11:11,997 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 172 [2024-11-13 14:11:11,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:11:12,001 INFO L225 Difference]: With dead ends: 1674 [2024-11-13 14:11:12,001 INFO L226 Difference]: Without dead ends: 977 [2024-11-13 14:11:12,002 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 [2024-11-13 14:11:12,003 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 94 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:11:12,003 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 190 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 14:11:12,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2024-11-13 14:11:12,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 977. [2024-11-13 14:11:12,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 977 states, 976 states have (on average 1.1454918032786885) internal successors, (1118), 976 states have internal predecessors, (1118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:11:12,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1118 transitions. [2024-11-13 14:11:12,027 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1118 transitions. Word has length 172 [2024-11-13 14:11:12,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:11:12,027 INFO L471 AbstractCegarLoop]: Abstraction has 977 states and 1118 transitions. [2024-11-13 14:11:12,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:11:12,028 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1118 transitions. [2024-11-13 14:11:12,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2024-11-13 14:11:12,031 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:11:12,031 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:11:12,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 14:11:12,032 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:11:12,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:11:12,032 INFO L85 PathProgramCache]: Analyzing trace with hash 477385993, now seen corresponding path program 1 times [2024-11-13 14:11:12,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:11:12,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746625126] [2024-11-13 14:11:12,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:11:12,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:11:12,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:11:12,587 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 88 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2024-11-13 14:11:12,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:11:12,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746625126] [2024-11-13 14:11:12,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746625126] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:11:12,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [241693403] [2024-11-13 14:11:12,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:11:12,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:11:12,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d869f131-bcba-47e7-a7d9-63b80fd2794f/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:11:12,591 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d869f131-bcba-47e7-a7d9-63b80fd2794f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:11:12,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d869f131-bcba-47e7-a7d9-63b80fd2794f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 14:11:12,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:11:12,741 INFO L255 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 14:11:12,750 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:11:13,166 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2024-11-13 14:11:13,166 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:11:13,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [241693403] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:11:13,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:11:13,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2024-11-13 14:11:13,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140976565] [2024-11-13 14:11:13,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:11:13,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:11:13,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:11:13,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:11:13,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:11:13,169 INFO L87 Difference]: Start difference. First operand 977 states and 1118 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:11:13,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:11:13,774 INFO L93 Difference]: Finished difference Result 1535 states and 1759 transitions. [2024-11-13 14:11:13,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:11:13,775 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 245 [2024-11-13 14:11:13,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:11:13,781 INFO L225 Difference]: With dead ends: 1535 [2024-11-13 14:11:13,781 INFO L226 Difference]: Without dead ends: 1533 [2024-11-13 14:11:13,782 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:11:13,782 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 68 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 14:11:13,783 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 11 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 14:11:13,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1533 states. [2024-11-13 14:11:13,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1533 to 1116. [2024-11-13 14:11:13,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1116 states, 1115 states have (on average 1.1713004484304932) internal successors, (1306), 1115 states have internal predecessors, (1306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:11:13,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1306 transitions. [2024-11-13 14:11:13,813 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1306 transitions. Word has length 245 [2024-11-13 14:11:13,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:11:13,814 INFO L471 AbstractCegarLoop]: Abstraction has 1116 states and 1306 transitions. [2024-11-13 14:11:13,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:11:13,814 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1306 transitions. [2024-11-13 14:11:13,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2024-11-13 14:11:13,819 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:11:13,820 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:11:13,840 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d869f131-bcba-47e7-a7d9-63b80fd2794f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 14:11:14,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d869f131-bcba-47e7-a7d9-63b80fd2794f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:11:14,024 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:11:14,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:11:14,025 INFO L85 PathProgramCache]: Analyzing trace with hash 962987433, now seen corresponding path program 1 times [2024-11-13 14:11:14,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:11:14,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083011369] [2024-11-13 14:11:14,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:11:14,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:11:14,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:11:14,946 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 59 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:11:14,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:11:14,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083011369] [2024-11-13 14:11:14,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083011369] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:11:14,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [808777006] [2024-11-13 14:11:14,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:11:14,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:11:14,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d869f131-bcba-47e7-a7d9-63b80fd2794f/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:11:14,951 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d869f131-bcba-47e7-a7d9-63b80fd2794f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:11:14,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d869f131-bcba-47e7-a7d9-63b80fd2794f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 14:11:15,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:11:15,138 INFO L255 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 14:11:15,169 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:11:15,329 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2024-11-13 14:11:15,329 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:11:15,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [808777006] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:11:15,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:11:15,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-13 14:11:15,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834248499] [2024-11-13 14:11:15,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:11:15,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:11:15,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:11:15,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:11:15,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:11:15,332 INFO L87 Difference]: Start difference. First operand 1116 states and 1306 transitions. Second operand has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:11:16,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:11:16,025 INFO L93 Difference]: Finished difference Result 2369 states and 2844 transitions. [2024-11-13 14:11:16,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:11:16,025 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 309 [2024-11-13 14:11:16,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:11:16,032 INFO L225 Difference]: With dead ends: 2369 [2024-11-13 14:11:16,032 INFO L226 Difference]: Without dead ends: 1394 [2024-11-13 14:11:16,033 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:11:16,035 INFO L432 NwaCegarLoop]: 220 mSDtfsCounter, 81 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 14:11:16,035 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 225 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 14:11:16,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2024-11-13 14:11:16,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1255. [2024-11-13 14:11:16,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1255 states, 1254 states have (on average 1.164274322169059) internal successors, (1460), 1254 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:11:16,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1460 transitions. [2024-11-13 14:11:16,081 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1460 transitions. Word has length 309 [2024-11-13 14:11:16,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:11:16,082 INFO L471 AbstractCegarLoop]: Abstraction has 1255 states and 1460 transitions. [2024-11-13 14:11:16,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:11:16,082 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1460 transitions. [2024-11-13 14:11:16,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2024-11-13 14:11:16,093 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:11:16,093 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:11:16,114 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d869f131-bcba-47e7-a7d9-63b80fd2794f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-13 14:11:16,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d869f131-bcba-47e7-a7d9-63b80fd2794f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:11:16,295 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:11:16,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:11:16,295 INFO L85 PathProgramCache]: Analyzing trace with hash -199542957, now seen corresponding path program 1 times [2024-11-13 14:11:16,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:11:16,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500719680] [2024-11-13 14:11:16,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:11:16,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:11:16,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:11:16,830 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2024-11-13 14:11:16,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:11:16,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500719680] [2024-11-13 14:11:16,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500719680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:11:16,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:11:16,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:11:16,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240474447] [2024-11-13 14:11:16,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:11:16,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:11:16,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:11:16,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:11:16,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:11:16,832 INFO L87 Difference]: Start difference. First operand 1255 states and 1460 transitions. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:11:17,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:11:17,522 INFO L93 Difference]: Finished difference Result 2228 states and 2585 transitions. [2024-11-13 14:11:17,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:11:17,522 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 360 [2024-11-13 14:11:17,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:11:17,523 INFO L225 Difference]: With dead ends: 2228 [2024-11-13 14:11:17,523 INFO L226 Difference]: Without dead ends: 0 [2024-11-13 14:11:17,525 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 [2024-11-13 14:11:17,525 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 91 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 14:11:17,526 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 24 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 14:11:17,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-13 14:11:17,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-13 14:11:17,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:11:17,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-13 14:11:17,528 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 360 [2024-11-13 14:11:17,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:11:17,528 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 14:11:17,528 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:11:17,528 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-13 14:11:17,529 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-13 14:11:17,531 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 14:11:17,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 14:11:17,538 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:11:17,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-13 14:11:17,852 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 14:11:17,870 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 02:11:17 BoogieIcfgContainer [2024-11-13 14:11:17,870 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 14:11:17,871 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 14:11:17,871 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 14:11:17,871 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 14:11:17,872 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:11:04" (3/4) ... [2024-11-13 14:11:17,874 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 14:11:17,888 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-13 14:11:17,889 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-13 14:11:17,890 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-13 14:11:17,890 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-13 14:11:18,042 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d869f131-bcba-47e7-a7d9-63b80fd2794f/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 14:11:18,043 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d869f131-bcba-47e7-a7d9-63b80fd2794f/bin/uautomizer-verify-qhAvR1uOyd/witness.yml [2024-11-13 14:11:18,044 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 14:11:18,044 INFO L158 Benchmark]: Toolchain (without parser) took 15570.55ms. Allocated memory was 117.4MB in the beginning and 268.4MB in the end (delta: 151.0MB). Free memory was 90.5MB in the beginning and 82.8MB in the end (delta: 7.7MB). Peak memory consumption was 158.0MB. Max. memory is 16.1GB. [2024-11-13 14:11:18,045 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 83.9MB. Free memory is still 41.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:11:18,045 INFO L158 Benchmark]: CACSL2BoogieTranslator took 601.72ms. Allocated memory is still 117.4MB. Free memory was 90.5MB in the beginning and 63.7MB in the end (delta: 26.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 14:11:18,045 INFO L158 Benchmark]: Boogie Procedure Inliner took 98.84ms. Allocated memory is still 117.4MB. Free memory was 63.7MB in the beginning and 56.2MB in the end (delta: 7.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 14:11:18,045 INFO L158 Benchmark]: Boogie Preprocessor took 100.97ms. Allocated memory is still 117.4MB. Free memory was 56.2MB in the beginning and 46.6MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 14:11:18,045 INFO L158 Benchmark]: RCFGBuilder took 1624.18ms. Allocated memory is still 117.4MB. Free memory was 46.6MB in the beginning and 55.5MB in the end (delta: -8.9MB). Peak memory consumption was 33.3MB. Max. memory is 16.1GB. [2024-11-13 14:11:18,046 INFO L158 Benchmark]: TraceAbstraction took 12965.14ms. Allocated memory was 117.4MB in the beginning and 268.4MB in the end (delta: 151.0MB). Free memory was 55.5MB in the beginning and 94.0MB in the end (delta: -38.6MB). Peak memory consumption was 114.4MB. Max. memory is 16.1GB. [2024-11-13 14:11:18,047 INFO L158 Benchmark]: Witness Printer took 172.67ms. Allocated memory is still 268.4MB. Free memory was 94.0MB in the beginning and 82.8MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 14:11:18,049 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 83.9MB. Free memory is still 41.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 601.72ms. Allocated memory is still 117.4MB. Free memory was 90.5MB in the beginning and 63.7MB in the end (delta: 26.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 98.84ms. Allocated memory is still 117.4MB. Free memory was 63.7MB in the beginning and 56.2MB in the end (delta: 7.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 100.97ms. Allocated memory is still 117.4MB. Free memory was 56.2MB in the beginning and 46.6MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1624.18ms. Allocated memory is still 117.4MB. Free memory was 46.6MB in the beginning and 55.5MB in the end (delta: -8.9MB). Peak memory consumption was 33.3MB. Max. memory is 16.1GB. * TraceAbstraction took 12965.14ms. Allocated memory was 117.4MB in the beginning and 268.4MB in the end (delta: 151.0MB). Free memory was 55.5MB in the beginning and 94.0MB in the end (delta: -38.6MB). Peak memory consumption was 114.4MB. Max. memory is 16.1GB. * Witness Printer took 172.67ms. Allocated memory is still 268.4MB. Free memory was 94.0MB in the beginning and 82.8MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 197]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 206 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 12.6s, OverallIterations: 9, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 818 SdHoareTripleChecker+Valid, 5.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 818 mSDsluCounter, 918 SdHoareTripleChecker+Invalid, 4.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 49 mSDsCounter, 558 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3623 IncrementalHoareTripleChecker+Invalid, 4181 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 558 mSolverCounterUnsat, 869 mSDtfsCounter, 3623 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 581 GetRequests, 563 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1255occurred in iteration=8, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 556 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.4s InterpolantComputationTime, 2250 NumberOfCodeBlocks, 2250 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 2239 ConstructedInterpolants, 0 QuantifiedInterpolants, 7525 SizeOfPredicates, 0 NumberOfNonLiveVariables, 758 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 11 InterpolantComputations, 9 PerfectInterpolantSequences, 1297/1553 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 592]: Loop Invariant Derived loop invariant: ((((((((a19 == 9) && (14 == a4)) && (a12 == 0)) || ((((a19 <= 9) && (4 <= a10)) && (14 == a4)) && (a12 == 0))) || ((((a19 <= 9) && (14 == a4)) && (a10 == 2)) && (a12 == 0))) || (((a10 <= 0) && (14 == a4)) && (a12 == 0))) || (((a10 == 1) && (14 == a4)) && (a12 == 0))) || ((((a19 <= 9) && (0 <= ((long long) a1 + 12))) && (14 == a4)) && (a12 == 0))) RESULT: Ultimate proved your program to be correct! [2024-11-13 14:11:18,083 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d869f131-bcba-47e7-a7d9-63b80fd2794f/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE