./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label38.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_18497251-005a-4e88-a3c6-c929710432cf/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18497251-005a-4e88-a3c6-c929710432cf/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_18497251-005a-4e88-a3c6-c929710432cf/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18497251-005a-4e88-a3c6-c929710432cf/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label38.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18497251-005a-4e88-a3c6-c929710432cf/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_18497251-005a-4e88-a3c6-c929710432cf/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 bc0ea3f151b54a5cacbfb2ac1bcf8641acb27c1a8c6a79c608c08e8094ba54fe --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 12:51:01,154 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 12:51:01,247 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18497251-005a-4e88-a3c6-c929710432cf/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 12:51:01,254 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 12:51:01,257 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 12:51:01,304 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 12:51:01,307 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 12:51:01,307 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 12:51:01,308 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 12:51:01,308 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 12:51:01,309 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 12:51:01,309 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 12:51:01,310 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 12:51:01,310 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 12:51:01,311 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 12:51:01,312 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 12:51:01,312 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 12:51:01,312 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 12:51:01,312 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 12:51:01,312 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 12:51:01,312 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 12:51:01,312 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 12:51:01,313 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 12:51:01,313 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 12:51:01,314 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 12:51:01,314 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 12:51:01,314 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 12:51:01,314 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 12:51:01,314 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 12:51:01,314 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 12:51:01,315 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 12:51:01,315 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 12:51:01,315 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 12:51:01,316 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 12:51:01,316 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 12:51:01,316 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 12:51:01,316 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 12:51:01,316 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 12:51:01,317 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 12:51:01,317 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 12:51:01,318 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 12:51:01,318 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 12:51:01,318 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_18497251-005a-4e88-a3c6-c929710432cf/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 -> bc0ea3f151b54a5cacbfb2ac1bcf8641acb27c1a8c6a79c608c08e8094ba54fe [2024-11-13 12:51:01,731 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 12:51:01,749 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 12:51:01,754 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 12:51:01,756 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 12:51:01,757 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 12:51:01,758 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18497251-005a-4e88-a3c6-c929710432cf/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/eca-rers2012/Problem14_label38.c Unable to find full path for "g++" [2024-11-13 12:51:04,127 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 12:51:04,581 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 12:51:04,586 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18497251-005a-4e88-a3c6-c929710432cf/sv-benchmarks/c/eca-rers2012/Problem14_label38.c [2024-11-13 12:51:04,616 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18497251-005a-4e88-a3c6-c929710432cf/bin/uautomizer-verify-qhAvR1uOyd/data/ebae81701/eb1f7ac9f560418cb380f65f67048a94/FLAGc67849f38 [2024-11-13 12:51:04,644 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18497251-005a-4e88-a3c6-c929710432cf/bin/uautomizer-verify-qhAvR1uOyd/data/ebae81701/eb1f7ac9f560418cb380f65f67048a94 [2024-11-13 12:51:04,647 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 12:51:04,649 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 12:51:04,652 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 12:51:04,652 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 12:51:04,658 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 12:51:04,659 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:51:04" (1/1) ... [2024-11-13 12:51:04,660 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ee4166c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:51:04, skipping insertion in model container [2024-11-13 12:51:04,660 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:51:04" (1/1) ... [2024-11-13 12:51:04,740 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 12:51:05,049 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_18497251-005a-4e88-a3c6-c929710432cf/sv-benchmarks/c/eca-rers2012/Problem14_label38.c[5189,5202] [2024-11-13 12:51:05,341 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 12:51:05,362 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 12:51:05,396 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_18497251-005a-4e88-a3c6-c929710432cf/sv-benchmarks/c/eca-rers2012/Problem14_label38.c[5189,5202] [2024-11-13 12:51:05,620 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 12:51:05,654 INFO L204 MainTranslator]: Completed translation [2024-11-13 12:51:05,655 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:51:05 WrapperNode [2024-11-13 12:51:05,655 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 12:51:05,658 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 12:51:05,658 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 12:51:05,658 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 12:51:05,668 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:51:05" (1/1) ... [2024-11-13 12:51:05,698 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:51:05" (1/1) ... [2024-11-13 12:51:05,822 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 858 [2024-11-13 12:51:05,822 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 12:51:05,823 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 12:51:05,824 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 12:51:05,824 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 12:51:05,836 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:51:05" (1/1) ... [2024-11-13 12:51:05,836 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:51:05" (1/1) ... [2024-11-13 12:51:05,844 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:51:05" (1/1) ... [2024-11-13 12:51:05,879 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 12:51:05,879 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:51:05" (1/1) ... [2024-11-13 12:51:05,879 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:51:05" (1/1) ... [2024-11-13 12:51:05,912 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:51:05" (1/1) ... [2024-11-13 12:51:05,923 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:51:05" (1/1) ... [2024-11-13 12:51:05,930 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:51:05" (1/1) ... [2024-11-13 12:51:05,935 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:51:05" (1/1) ... [2024-11-13 12:51:05,947 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 12:51:05,948 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 12:51:05,949 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 12:51:05,949 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 12:51:05,950 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:51:05" (1/1) ... [2024-11-13 12:51:05,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 12:51:06,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18497251-005a-4e88-a3c6-c929710432cf/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:51:06,030 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18497251-005a-4e88-a3c6-c929710432cf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 12:51:06,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18497251-005a-4e88-a3c6-c929710432cf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 12:51:06,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 12:51:06,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 12:51:06,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 12:51:06,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 12:51:06,179 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 12:51:06,182 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 12:51:08,318 INFO L? ?]: Removed 123 outVars from TransFormulas that were not future-live. [2024-11-13 12:51:08,318 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 12:51:08,339 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 12:51:08,339 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 12:51:08,340 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:51:08 BoogieIcfgContainer [2024-11-13 12:51:08,340 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 12:51:08,342 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 12:51:08,342 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 12:51:08,348 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 12:51:08,349 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 12:51:04" (1/3) ... [2024-11-13 12:51:08,349 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3be3ef8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 12:51:08, skipping insertion in model container [2024-11-13 12:51:08,350 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:51:05" (2/3) ... [2024-11-13 12:51:08,350 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3be3ef8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 12:51:08, skipping insertion in model container [2024-11-13 12:51:08,351 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:51:08" (3/3) ... [2024-11-13 12:51:08,353 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label38.c [2024-11-13 12:51:08,374 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 12:51:08,377 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem14_label38.c that has 1 procedures, 245 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 12:51:08,489 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 12:51:08,504 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;@67359336, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 12:51:08,505 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 12:51:08,511 INFO L276 IsEmpty]: Start isEmpty. Operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 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 12:51:08,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-13 12:51:08,521 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:51:08,522 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] [2024-11-13 12:51:08,522 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:51:08,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:51:08,529 INFO L85 PathProgramCache]: Analyzing trace with hash -670182982, now seen corresponding path program 1 times [2024-11-13 12:51:08,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:51:08,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244076192] [2024-11-13 12:51:08,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:51:08,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:51:08,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:51:09,079 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 12:51:09,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:51:09,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244076192] [2024-11-13 12:51:09,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244076192] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:51:09,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:51:09,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 12:51:09,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909274937] [2024-11-13 12:51:09,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:51:09,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:51:09,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:51:09,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:51:09,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:51:09,131 INFO L87 Difference]: Start difference. First operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 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 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 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 12:51:10,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:51:10,859 INFO L93 Difference]: Finished difference Result 669 states and 1200 transitions. [2024-11-13 12:51:10,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:51:10,863 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 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 50 [2024-11-13 12:51:10,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:51:10,877 INFO L225 Difference]: With dead ends: 669 [2024-11-13 12:51:10,878 INFO L226 Difference]: Without dead ends: 360 [2024-11-13 12:51:10,882 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 12:51:10,886 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 156 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-13 12:51:10,888 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 77 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-13 12:51:10,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2024-11-13 12:51:10,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2024-11-13 12:51:10,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 359 states have (on average 1.6378830083565459) internal successors, (588), 359 states have internal predecessors, (588), 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 12:51:10,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 588 transitions. [2024-11-13 12:51:10,987 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 588 transitions. Word has length 50 [2024-11-13 12:51:10,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:51:10,988 INFO L471 AbstractCegarLoop]: Abstraction has 360 states and 588 transitions. [2024-11-13 12:51:10,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 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 12:51:10,989 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 588 transitions. [2024-11-13 12:51:10,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-13 12:51:10,992 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:51:10,993 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, 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 12:51:10,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 12:51:10,994 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:51:10,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:51:10,995 INFO L85 PathProgramCache]: Analyzing trace with hash 992161295, now seen corresponding path program 1 times [2024-11-13 12:51:10,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:51:10,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426258617] [2024-11-13 12:51:10,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:51:10,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:51:11,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:51:11,359 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:51:11,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:51:11,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426258617] [2024-11-13 12:51:11,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426258617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:51:11,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:51:11,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 12:51:11,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846348569] [2024-11-13 12:51:11,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:51:11,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:51:11,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:51:11,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:51:11,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:51:11,364 INFO L87 Difference]: Start difference. First operand 360 states and 588 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 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 12:51:12,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:51:12,635 INFO L93 Difference]: Finished difference Result 1074 states and 1759 transitions. [2024-11-13 12:51:12,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:51:12,636 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 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 115 [2024-11-13 12:51:12,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:51:12,643 INFO L225 Difference]: With dead ends: 1074 [2024-11-13 12:51:12,644 INFO L226 Difference]: Without dead ends: 716 [2024-11-13 12:51:12,647 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 12:51:12,650 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 132 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-13 12:51:12,650 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 89 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-13 12:51:12,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2024-11-13 12:51:12,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 538. [2024-11-13 12:51:12,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 537 states have (on average 1.4934823091247673) internal successors, (802), 537 states have internal predecessors, (802), 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 12:51:12,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 802 transitions. [2024-11-13 12:51:12,688 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 802 transitions. Word has length 115 [2024-11-13 12:51:12,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:51:12,689 INFO L471 AbstractCegarLoop]: Abstraction has 538 states and 802 transitions. [2024-11-13 12:51:12,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 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 12:51:12,689 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 802 transitions. [2024-11-13 12:51:12,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-13 12:51:12,694 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:51:12,694 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:51:12,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 12:51:12,694 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:51:12,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:51:12,695 INFO L85 PathProgramCache]: Analyzing trace with hash -168189172, now seen corresponding path program 1 times [2024-11-13 12:51:12,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:51:12,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884236545] [2024-11-13 12:51:12,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:51:12,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:51:12,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:51:13,466 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:51:13,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:51:13,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884236545] [2024-11-13 12:51:13,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884236545] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:51:13,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:51:13,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:51:13,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489091240] [2024-11-13 12:51:13,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:51:13,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:51:13,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:51:13,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:51:13,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:51:13,472 INFO L87 Difference]: Start difference. First operand 538 states and 802 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 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 12:51:15,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:51:15,131 INFO L93 Difference]: Finished difference Result 1430 states and 2030 transitions. [2024-11-13 12:51:15,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 12:51:15,132 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 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 129 [2024-11-13 12:51:15,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:51:15,141 INFO L225 Difference]: With dead ends: 1430 [2024-11-13 12:51:15,141 INFO L226 Difference]: Without dead ends: 894 [2024-11-13 12:51:15,142 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 12:51:15,146 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 419 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 1016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-13 12:51:15,146 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 121 Invalid, 1016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 976 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-13 12:51:15,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2024-11-13 12:51:15,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 894. [2024-11-13 12:51:15,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 893 states have (on average 1.3370660694288914) internal successors, (1194), 893 states have internal predecessors, (1194), 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 12:51:15,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1194 transitions. [2024-11-13 12:51:15,206 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1194 transitions. Word has length 129 [2024-11-13 12:51:15,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:51:15,207 INFO L471 AbstractCegarLoop]: Abstraction has 894 states and 1194 transitions. [2024-11-13 12:51:15,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 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 12:51:15,208 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1194 transitions. [2024-11-13 12:51:15,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-11-13 12:51:15,226 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:51:15,226 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, 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] [2024-11-13 12:51:15,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 12:51:15,227 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:51:15,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:51:15,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1347121184, now seen corresponding path program 1 times [2024-11-13 12:51:15,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:51:15,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279380298] [2024-11-13 12:51:15,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:51:15,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:51:15,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:51:15,878 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-13 12:51:15,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:51:15,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279380298] [2024-11-13 12:51:15,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279380298] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:51:15,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:51:15,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:51:15,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597929735] [2024-11-13 12:51:15,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:51:15,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:51:15,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:51:15,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:51:15,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:51:15,885 INFO L87 Difference]: Start difference. First operand 894 states and 1194 transitions. Second operand has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 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 12:51:17,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:51:17,137 INFO L93 Difference]: Finished difference Result 1993 states and 2629 transitions. [2024-11-13 12:51:17,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 12:51:17,138 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 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 209 [2024-11-13 12:51:17,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:51:17,144 INFO L225 Difference]: With dead ends: 1993 [2024-11-13 12:51:17,144 INFO L226 Difference]: Without dead ends: 1072 [2024-11-13 12:51:17,147 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:51:17,149 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 116 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-13 12:51:17,152 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 119 Invalid, 771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-13 12:51:17,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2024-11-13 12:51:17,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1072. [2024-11-13 12:51:17,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1071 states have (on average 1.1802054154995332) internal successors, (1264), 1071 states have internal predecessors, (1264), 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 12:51:17,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1264 transitions. [2024-11-13 12:51:17,189 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1264 transitions. Word has length 209 [2024-11-13 12:51:17,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:51:17,191 INFO L471 AbstractCegarLoop]: Abstraction has 1072 states and 1264 transitions. [2024-11-13 12:51:17,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 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 12:51:17,191 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1264 transitions. [2024-11-13 12:51:17,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2024-11-13 12:51:17,197 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:51:17,197 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, 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] [2024-11-13 12:51:17,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 12:51:17,198 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:51:17,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:51:17,199 INFO L85 PathProgramCache]: Analyzing trace with hash 842275194, now seen corresponding path program 1 times [2024-11-13 12:51:17,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:51:17,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406208415] [2024-11-13 12:51:17,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:51:17,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:51:17,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:51:17,829 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 95 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:51:17,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:51:17,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406208415] [2024-11-13 12:51:17,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406208415] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:51:17,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1674086803] [2024-11-13 12:51:17,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:51:17,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:51:17,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18497251-005a-4e88-a3c6-c929710432cf/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:51:17,833 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18497251-005a-4e88-a3c6-c929710432cf/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:51:17,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18497251-005a-4e88-a3c6-c929710432cf/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 12:51:18,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:51:18,033 INFO L255 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 12:51:18,042 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:51:18,472 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-11-13 12:51:18,473 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:51:18,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1674086803] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:51:18,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 12:51:18,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-11-13 12:51:18,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963844524] [2024-11-13 12:51:18,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:51:18,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:51:18,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:51:18,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:51:18,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:51:18,475 INFO L87 Difference]: Start difference. First operand 1072 states and 1264 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 2 states have internal predecessors, (157), 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 12:51:19,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:51:19,410 INFO L93 Difference]: Finished difference Result 2320 states and 2779 transitions. [2024-11-13 12:51:19,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:51:19,411 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 2 states have internal predecessors, (157), 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 221 [2024-11-13 12:51:19,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:51:19,417 INFO L225 Difference]: With dead ends: 2320 [2024-11-13 12:51:19,418 INFO L226 Difference]: Without dead ends: 1250 [2024-11-13 12:51:19,419 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:51:19,420 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 84 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 12:51:19,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 47 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 12:51:19,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2024-11-13 12:51:19,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1072. [2024-11-13 12:51:19,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1071 states have (on average 1.1671335200746966) internal successors, (1250), 1071 states have internal predecessors, (1250), 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 12:51:19,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1250 transitions. [2024-11-13 12:51:19,453 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1250 transitions. Word has length 221 [2024-11-13 12:51:19,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:51:19,454 INFO L471 AbstractCegarLoop]: Abstraction has 1072 states and 1250 transitions. [2024-11-13 12:51:19,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 2 states have internal predecessors, (157), 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 12:51:19,455 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1250 transitions. [2024-11-13 12:51:19,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2024-11-13 12:51:19,458 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:51:19,458 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, 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] [2024-11-13 12:51:19,483 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18497251-005a-4e88-a3c6-c929710432cf/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 12:51:19,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18497251-005a-4e88-a3c6-c929710432cf/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:51:19,663 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:51:19,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:51:19,665 INFO L85 PathProgramCache]: Analyzing trace with hash -42302732, now seen corresponding path program 1 times [2024-11-13 12:51:19,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:51:19,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246096935] [2024-11-13 12:51:19,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:51:19,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:51:19,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:51:20,143 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 163 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:51:20,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:51:20,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246096935] [2024-11-13 12:51:20,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246096935] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:51:20,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:51:20,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:51:20,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757030047] [2024-11-13 12:51:20,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:51:20,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:51:20,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:51:20,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:51:20,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:51:20,150 INFO L87 Difference]: Start difference. First operand 1072 states and 1250 transitions. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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 12:51:21,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:51:21,124 INFO L93 Difference]: Finished difference Result 2854 states and 3362 transitions. [2024-11-13 12:51:21,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:51:21,129 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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 224 [2024-11-13 12:51:21,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:51:21,137 INFO L225 Difference]: With dead ends: 2854 [2024-11-13 12:51:21,138 INFO L226 Difference]: Without dead ends: 1784 [2024-11-13 12:51:21,139 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 12:51:21,140 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 111 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 12:51:21,142 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 77 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 12:51:21,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1784 states. [2024-11-13 12:51:21,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1784 to 1606. [2024-11-13 12:51:21,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1606 states, 1605 states have (on average 1.1364485981308412) internal successors, (1824), 1605 states have internal predecessors, (1824), 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 12:51:21,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1824 transitions. [2024-11-13 12:51:21,192 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1824 transitions. Word has length 224 [2024-11-13 12:51:21,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:51:21,192 INFO L471 AbstractCegarLoop]: Abstraction has 1606 states and 1824 transitions. [2024-11-13 12:51:21,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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 12:51:21,193 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1824 transitions. [2024-11-13 12:51:21,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2024-11-13 12:51:21,198 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:51:21,198 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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:51:21,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 12:51:21,199 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:51:21,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:51:21,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1660419084, now seen corresponding path program 1 times [2024-11-13 12:51:21,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:51:21,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091658083] [2024-11-13 12:51:21,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:51:21,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:51:21,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:51:21,879 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2024-11-13 12:51:21,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:51:21,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091658083] [2024-11-13 12:51:21,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091658083] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:51:21,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:51:21,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:51:21,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438320050] [2024-11-13 12:51:21,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:51:21,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:51:21,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:51:21,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:51:21,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:51:21,882 INFO L87 Difference]: Start difference. First operand 1606 states and 1824 transitions. Second operand has 4 states, 4 states have (on average 39.75) internal successors, (159), 3 states have internal predecessors, (159), 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 12:51:22,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:51:22,934 INFO L93 Difference]: Finished difference Result 3268 states and 3727 transitions. [2024-11-13 12:51:22,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 12:51:22,935 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 3 states have internal predecessors, (159), 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 341 [2024-11-13 12:51:22,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:51:22,944 INFO L225 Difference]: With dead ends: 3268 [2024-11-13 12:51:22,944 INFO L226 Difference]: Without dead ends: 1784 [2024-11-13 12:51:22,946 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:51:22,947 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 141 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-13 12:51:22,948 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 17 Invalid, 742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-13 12:51:22,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1784 states. [2024-11-13 12:51:23,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1784 to 1606. [2024-11-13 12:51:23,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1606 states, 1605 states have (on average 1.0909657320872275) internal successors, (1751), 1605 states have internal predecessors, (1751), 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 12:51:23,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1751 transitions. [2024-11-13 12:51:23,023 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1751 transitions. Word has length 341 [2024-11-13 12:51:23,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:51:23,024 INFO L471 AbstractCegarLoop]: Abstraction has 1606 states and 1751 transitions. [2024-11-13 12:51:23,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 3 states have internal predecessors, (159), 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 12:51:23,025 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1751 transitions. [2024-11-13 12:51:23,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437 [2024-11-13 12:51:23,033 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:51:23,034 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-13 12:51:23,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 12:51:23,034 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:51:23,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:51:23,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1895593452, now seen corresponding path program 1 times [2024-11-13 12:51:23,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:51:23,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674559135] [2024-11-13 12:51:23,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:51:23,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:51:23,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:51:23,885 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 397 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2024-11-13 12:51:23,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:51:23,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674559135] [2024-11-13 12:51:23,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674559135] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:51:23,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:51:23,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:51:23,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040745446] [2024-11-13 12:51:23,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:51:23,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:51:23,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:51:23,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:51:23,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:51:23,888 INFO L87 Difference]: Start difference. First operand 1606 states and 1751 transitions. Second operand has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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 12:51:24,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:51:24,784 INFO L93 Difference]: Finished difference Result 3922 states and 4309 transitions. [2024-11-13 12:51:24,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:51:24,785 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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 436 [2024-11-13 12:51:24,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:51:24,796 INFO L225 Difference]: With dead ends: 3922 [2024-11-13 12:51:24,796 INFO L226 Difference]: Without dead ends: 2496 [2024-11-13 12:51:24,798 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 12:51:24,799 INFO L432 NwaCegarLoop]: 240 mSDtfsCounter, 110 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 12:51:24,799 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 245 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 12:51:24,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2024-11-13 12:51:24,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 1962. [2024-11-13 12:51:24,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1962 states, 1961 states have (on average 1.075981642019378) internal successors, (2110), 1961 states have internal predecessors, (2110), 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 12:51:24,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2110 transitions. [2024-11-13 12:51:24,866 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2110 transitions. Word has length 436 [2024-11-13 12:51:24,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:51:24,868 INFO L471 AbstractCegarLoop]: Abstraction has 1962 states and 2110 transitions. [2024-11-13 12:51:24,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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 12:51:24,868 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2110 transitions. [2024-11-13 12:51:24,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 444 [2024-11-13 12:51:24,878 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:51:24,879 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:51:24,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 12:51:24,880 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:51:24,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:51:24,881 INFO L85 PathProgramCache]: Analyzing trace with hash 462851886, now seen corresponding path program 1 times [2024-11-13 12:51:24,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:51:24,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890677818] [2024-11-13 12:51:24,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:51:24,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:51:25,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:51:25,657 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 397 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2024-11-13 12:51:25,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:51:25,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890677818] [2024-11-13 12:51:25,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890677818] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:51:25,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:51:25,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:51:25,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997015157] [2024-11-13 12:51:25,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:51:25,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:51:25,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:51:25,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:51:25,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:51:25,661 INFO L87 Difference]: Start difference. First operand 1962 states and 2110 transitions. Second operand has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 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 12:51:26,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:51:26,549 INFO L93 Difference]: Finished difference Result 4456 states and 4861 transitions. [2024-11-13 12:51:26,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:51:26,551 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 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 443 [2024-11-13 12:51:26,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:51:26,561 INFO L225 Difference]: With dead ends: 4456 [2024-11-13 12:51:26,562 INFO L226 Difference]: Without dead ends: 2674 [2024-11-13 12:51:26,564 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 12:51:26,566 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 112 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 12:51:26,567 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 203 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 12:51:26,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2024-11-13 12:51:26,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2496. [2024-11-13 12:51:26,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2496 states, 2495 states have (on average 1.082565130260521) internal successors, (2701), 2495 states have internal predecessors, (2701), 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 12:51:26,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2701 transitions. [2024-11-13 12:51:26,645 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2701 transitions. Word has length 443 [2024-11-13 12:51:26,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:51:26,647 INFO L471 AbstractCegarLoop]: Abstraction has 2496 states and 2701 transitions. [2024-11-13 12:51:26,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 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 12:51:26,647 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2701 transitions. [2024-11-13 12:51:26,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2024-11-13 12:51:26,660 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:51:26,660 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:51:26,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 12:51:26,661 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:51:26,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:51:26,661 INFO L85 PathProgramCache]: Analyzing trace with hash 989292818, now seen corresponding path program 1 times [2024-11-13 12:51:26,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:51:26,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551383373] [2024-11-13 12:51:26,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:51:26,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:51:26,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:51:27,160 INFO L134 CoverageAnalysis]: Checked inductivity of 825 backedges. 511 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2024-11-13 12:51:27,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:51:27,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551383373] [2024-11-13 12:51:27,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551383373] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:51:27,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:51:27,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:51:27,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058678775] [2024-11-13 12:51:27,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:51:27,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:51:27,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:51:27,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:51:27,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:51:27,163 INFO L87 Difference]: Start difference. First operand 2496 states and 2701 transitions. Second operand has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 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 12:51:28,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:51:28,195 INFO L93 Difference]: Finished difference Result 5880 states and 6454 transitions. [2024-11-13 12:51:28,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:51:28,196 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 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 484 [2024-11-13 12:51:28,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:51:28,212 INFO L225 Difference]: With dead ends: 5880 [2024-11-13 12:51:28,212 INFO L226 Difference]: Without dead ends: 3564 [2024-11-13 12:51:28,216 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 12:51:28,217 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 72 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-13 12:51:28,217 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 52 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-13 12:51:28,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3564 states. [2024-11-13 12:51:28,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3564 to 3386. [2024-11-13 12:51:28,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3386 states, 3385 states have (on average 1.0779911373707534) internal successors, (3649), 3385 states have internal predecessors, (3649), 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 12:51:28,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 3649 transitions. [2024-11-13 12:51:28,336 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 3649 transitions. Word has length 484 [2024-11-13 12:51:28,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:51:28,337 INFO L471 AbstractCegarLoop]: Abstraction has 3386 states and 3649 transitions. [2024-11-13 12:51:28,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 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 12:51:28,338 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 3649 transitions. [2024-11-13 12:51:28,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 640 [2024-11-13 12:51:28,345 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:51:28,347 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 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] [2024-11-13 12:51:28,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 12:51:28,348 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:51:28,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:51:28,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1404548632, now seen corresponding path program 1 times [2024-11-13 12:51:28,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:51:28,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491744526] [2024-11-13 12:51:28,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:51:28,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:51:28,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:51:29,105 INFO L134 CoverageAnalysis]: Checked inductivity of 1306 backedges. 882 proven. 110 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2024-11-13 12:51:29,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:51:29,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491744526] [2024-11-13 12:51:29,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491744526] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:51:29,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [389352868] [2024-11-13 12:51:29,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:51:29,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:51:29,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18497251-005a-4e88-a3c6-c929710432cf/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:51:29,108 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18497251-005a-4e88-a3c6-c929710432cf/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:51:29,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18497251-005a-4e88-a3c6-c929710432cf/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 12:51:29,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:51:29,458 INFO L255 TraceCheckSpWp]: Trace formula consists of 798 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 12:51:29,481 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:51:29,648 INFO L134 CoverageAnalysis]: Checked inductivity of 1306 backedges. 239 proven. 0 refuted. 0 times theorem prover too weak. 1067 trivial. 0 not checked. [2024-11-13 12:51:29,648 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:51:29,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [389352868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:51:29,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 12:51:29,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-13 12:51:29,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044327703] [2024-11-13 12:51:29,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:51:29,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:51:29,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:51:29,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:51:29,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 12:51:29,652 INFO L87 Difference]: Start difference. First operand 3386 states and 3649 transitions. Second operand has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 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 12:51:30,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:51:30,515 INFO L93 Difference]: Finished difference Result 7126 states and 7704 transitions. [2024-11-13 12:51:30,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:51:30,516 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 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 639 [2024-11-13 12:51:30,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:51:30,531 INFO L225 Difference]: With dead ends: 7126 [2024-11-13 12:51:30,532 INFO L226 Difference]: Without dead ends: 3386 [2024-11-13 12:51:30,536 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 642 GetRequests, 639 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 12:51:30,537 INFO L432 NwaCegarLoop]: 242 mSDtfsCounter, 131 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 12:51:30,538 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 247 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 12:51:30,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3386 states. [2024-11-13 12:51:30,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3386 to 3030. [2024-11-13 12:51:30,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3030 states, 3029 states have (on average 1.0772532188841202) internal successors, (3263), 3029 states have internal predecessors, (3263), 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 12:51:30,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3263 transitions. [2024-11-13 12:51:30,640 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3263 transitions. Word has length 639 [2024-11-13 12:51:30,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:51:30,642 INFO L471 AbstractCegarLoop]: Abstraction has 3030 states and 3263 transitions. [2024-11-13 12:51:30,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 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 12:51:30,642 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3263 transitions. [2024-11-13 12:51:30,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 642 [2024-11-13 12:51:30,655 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:51:30,656 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:51:30,682 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18497251-005a-4e88-a3c6-c929710432cf/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 12:51:30,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18497251-005a-4e88-a3c6-c929710432cf/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-13 12:51:30,861 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:51:30,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:51:30,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1085873049, now seen corresponding path program 1 times [2024-11-13 12:51:30,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:51:30,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614689694] [2024-11-13 12:51:30,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:51:30,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:51:31,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:51:32,099 INFO L134 CoverageAnalysis]: Checked inductivity of 1630 backedges. 1164 proven. 104 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked. [2024-11-13 12:51:32,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:51:32,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614689694] [2024-11-13 12:51:32,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614689694] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:51:32,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1503518142] [2024-11-13 12:51:32,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:51:32,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:51:32,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18497251-005a-4e88-a3c6-c929710432cf/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:51:32,103 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18497251-005a-4e88-a3c6-c929710432cf/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:51:32,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18497251-005a-4e88-a3c6-c929710432cf/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 12:51:32,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:51:32,424 INFO L255 TraceCheckSpWp]: Trace formula consists of 818 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 12:51:32,433 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:51:32,577 INFO L134 CoverageAnalysis]: Checked inductivity of 1630 backedges. 287 proven. 0 refuted. 0 times theorem prover too weak. 1343 trivial. 0 not checked. [2024-11-13 12:51:32,578 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:51:32,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1503518142] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:51:32,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 12:51:32,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-13 12:51:32,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436634251] [2024-11-13 12:51:32,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:51:32,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:51:32,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:51:32,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:51:32,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-13 12:51:32,581 INFO L87 Difference]: Start difference. First operand 3030 states and 3263 transitions. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 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 12:51:33,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:51:33,397 INFO L93 Difference]: Finished difference Result 3564 states and 3828 transitions. [2024-11-13 12:51:33,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:51:33,398 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 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 641 [2024-11-13 12:51:33,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:51:33,400 INFO L225 Difference]: With dead ends: 3564 [2024-11-13 12:51:33,400 INFO L226 Difference]: Without dead ends: 0 [2024-11-13 12:51:33,403 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 645 GetRequests, 640 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-13 12:51:33,405 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 152 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 12:51:33,405 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 8 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 12:51:33,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-13 12:51:33,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-13 12:51:33,406 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 12:51:33,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-13 12:51:33,407 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 641 [2024-11-13 12:51:33,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:51:33,407 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 12:51:33,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 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 12:51:33,407 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-13 12:51:33,408 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-13 12:51:33,411 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 12:51:33,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18497251-005a-4e88-a3c6-c929710432cf/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-13 12:51:33,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18497251-005a-4e88-a3c6-c929710432cf/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-13 12:51:33,615 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:51:33,617 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-13 12:51:34,295 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 12:51:34,331 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 12:51:34 BoogieIcfgContainer [2024-11-13 12:51:34,331 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 12:51:34,332 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 12:51:34,332 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 12:51:34,332 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 12:51:34,333 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:51:08" (3/4) ... [2024-11-13 12:51:34,336 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 12:51:34,369 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-13 12:51:34,371 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-13 12:51:34,372 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-13 12:51:34,373 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-13 12:51:34,594 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18497251-005a-4e88-a3c6-c929710432cf/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 12:51:34,595 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18497251-005a-4e88-a3c6-c929710432cf/bin/uautomizer-verify-qhAvR1uOyd/witness.yml [2024-11-13 12:51:34,595 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 12:51:34,597 INFO L158 Benchmark]: Toolchain (without parser) took 29947.57ms. Allocated memory was 117.4MB in the beginning and 385.9MB in the end (delta: 268.4MB). Free memory was 90.1MB in the beginning and 305.5MB in the end (delta: -215.3MB). Peak memory consumption was 50.1MB. Max. memory is 16.1GB. [2024-11-13 12:51:34,597 INFO L158 Benchmark]: CDTParser took 1.95ms. Allocated memory is still 83.9MB. Free memory is still 40.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 12:51:34,597 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1004.87ms. Allocated memory is still 117.4MB. Free memory was 89.7MB in the beginning and 58.4MB in the end (delta: 31.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-13 12:51:34,599 INFO L158 Benchmark]: Boogie Procedure Inliner took 165.04ms. Allocated memory is still 117.4MB. Free memory was 58.4MB in the beginning and 48.8MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 12:51:34,599 INFO L158 Benchmark]: Boogie Preprocessor took 124.20ms. Allocated memory is still 117.4MB. Free memory was 48.8MB in the beginning and 36.8MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 12:51:34,599 INFO L158 Benchmark]: RCFGBuilder took 2391.32ms. Allocated memory is still 117.4MB. Free memory was 36.8MB in the beginning and 72.2MB in the end (delta: -35.5MB). Peak memory consumption was 25.1MB. Max. memory is 16.1GB. [2024-11-13 12:51:34,600 INFO L158 Benchmark]: TraceAbstraction took 25989.18ms. Allocated memory was 117.4MB in the beginning and 385.9MB in the end (delta: 268.4MB). Free memory was 71.4MB in the beginning and 317.7MB in the end (delta: -246.3MB). Peak memory consumption was 212.7MB. Max. memory is 16.1GB. [2024-11-13 12:51:34,601 INFO L158 Benchmark]: Witness Printer took 263.22ms. Allocated memory is still 385.9MB. Free memory was 317.7MB in the beginning and 305.5MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 12:51:34,603 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.95ms. Allocated memory is still 83.9MB. Free memory is still 40.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1004.87ms. Allocated memory is still 117.4MB. Free memory was 89.7MB in the beginning and 58.4MB in the end (delta: 31.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 165.04ms. Allocated memory is still 117.4MB. Free memory was 58.4MB in the beginning and 48.8MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 124.20ms. Allocated memory is still 117.4MB. Free memory was 48.8MB in the beginning and 36.8MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 2391.32ms. Allocated memory is still 117.4MB. Free memory was 36.8MB in the beginning and 72.2MB in the end (delta: -35.5MB). Peak memory consumption was 25.1MB. Max. memory is 16.1GB. * TraceAbstraction took 25989.18ms. Allocated memory was 117.4MB in the beginning and 385.9MB in the end (delta: 268.4MB). Free memory was 71.4MB in the beginning and 317.7MB in the end (delta: -246.3MB). Peak memory consumption was 212.7MB. Max. memory is 16.1GB. * Witness Printer took 263.22ms. Allocated memory is still 385.9MB. Free memory was 317.7MB in the beginning and 305.5MB in the end (delta: 12.3MB). 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: 164]: 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, 245 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 25.2s, OverallIterations: 12, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 13.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1736 SdHoareTripleChecker+Valid, 12.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1736 mSDsluCounter, 1302 SdHoareTripleChecker+Invalid, 10.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 67 mSDsCounter, 837 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6346 IncrementalHoareTripleChecker+Invalid, 7183 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 837 mSolverCounterUnsat, 1235 mSDtfsCounter, 6346 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1537 GetRequests, 1512 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3386occurred in iteration=10, InterpolantAutomatonStates: 39, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 12 MinimizatonAttempts, 1958 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 7.5s InterpolantComputationTime, 5433 NumberOfCodeBlocks, 5433 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 5418 ConstructedInterpolants, 0 QuantifiedInterpolants, 16839 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1931 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 15 InterpolantComputations, 12 PerfectInterpolantSequences, 8996/9275 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: 890]: Loop Invariant Derived loop invariant: (((((((7 <= a15) && (a24 == 1)) || ((((long long) 49 + a12) <= 0) && (a15 <= 5))) || ((a21 <= 9) && (a24 == 1))) || ((((7 <= a15) && (a15 <= 8)) && (((long long) 49 + a12) <= 0)) && (10 <= a21))) || ((a24 == 1) && (a15 <= 5))) || ((a12 <= 11) && (a24 == 1))) RESULT: Ultimate proved your program to be correct! [2024-11-13 12:51:34,649 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18497251-005a-4e88-a3c6-c929710432cf/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