./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops-crafted-1/nested5-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad4a3260-b94c-499c-b1d7-c155f5b887fb/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad4a3260-b94c-499c-b1d7-c155f5b887fb/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad4a3260-b94c-499c-b1d7-c155f5b887fb/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad4a3260-b94c-499c-b1d7-c155f5b887fb/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops-crafted-1/nested5-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad4a3260-b94c-499c-b1d7-c155f5b887fb/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad4a3260-b94c-499c-b1d7-c155f5b887fb/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 b89d5a1db28cdbe10153d7e75038bff16b1343640a8d05a90f6e5bdf82eae94a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:24:40,308 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:24:40,427 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad4a3260-b94c-499c-b1d7-c155f5b887fb/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 22:24:40,434 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:24:40,435 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:24:40,473 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:24:40,473 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:24:40,474 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:24:40,475 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:24:40,480 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:24:40,481 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:24:40,482 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:24:40,482 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:24:40,484 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:24:40,484 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:24:40,485 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:24:40,485 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:24:40,486 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:24:40,486 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:24:40,487 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:24:40,487 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:24:40,488 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:24:40,489 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:24:40,489 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:24:40,490 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:24:40,491 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:24:40,491 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:24:40,492 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:24:40,492 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:24:40,493 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:24:40,494 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:24:40,495 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:24:40,495 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:24:40,495 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:24:40,496 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:24:40,496 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:24:40,496 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:24:40,497 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:24:40,497 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:24:40,497 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad4a3260-b94c-499c-b1d7-c155f5b887fb/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad4a3260-b94c-499c-b1d7-c155f5b887fb/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b89d5a1db28cdbe10153d7e75038bff16b1343640a8d05a90f6e5bdf82eae94a [2023-11-06 22:24:40,846 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:24:40,877 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:24:40,880 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:24:40,882 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:24:40,883 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:24:40,884 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad4a3260-b94c-499c-b1d7-c155f5b887fb/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/loops-crafted-1/nested5-1.c [2023-11-06 22:24:44,005 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:24:44,214 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:24:44,214 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad4a3260-b94c-499c-b1d7-c155f5b887fb/sv-benchmarks/c/loops-crafted-1/nested5-1.c [2023-11-06 22:24:44,221 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad4a3260-b94c-499c-b1d7-c155f5b887fb/bin/uautomizer-verify-WvqO1wxjHP/data/ec356f9ba/9f975f2c93fe445c82fb6a88eb7da225/FLAG4ef9acc34 [2023-11-06 22:24:44,246 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad4a3260-b94c-499c-b1d7-c155f5b887fb/bin/uautomizer-verify-WvqO1wxjHP/data/ec356f9ba/9f975f2c93fe445c82fb6a88eb7da225 [2023-11-06 22:24:44,253 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:24:44,255 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:24:44,258 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:24:44,258 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:24:44,265 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:24:44,265 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:24:44" (1/1) ... [2023-11-06 22:24:44,266 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1372ec60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:44, skipping insertion in model container [2023-11-06 22:24:44,267 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:24:44" (1/1) ... [2023-11-06 22:24:44,290 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:24:44,455 WARN L240 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_ad4a3260-b94c-499c-b1d7-c155f5b887fb/sv-benchmarks/c/loops-crafted-1/nested5-1.c[321,334] [2023-11-06 22:24:44,470 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:24:44,480 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:24:44,493 WARN L240 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_ad4a3260-b94c-499c-b1d7-c155f5b887fb/sv-benchmarks/c/loops-crafted-1/nested5-1.c[321,334] [2023-11-06 22:24:44,498 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:24:44,512 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:24:44,513 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:44 WrapperNode [2023-11-06 22:24:44,513 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:24:44,514 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:24:44,515 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:24:44,515 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:24:44,523 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:44" (1/1) ... [2023-11-06 22:24:44,528 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:44" (1/1) ... [2023-11-06 22:24:44,547 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 63 [2023-11-06 22:24:44,547 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:24:44,548 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:24:44,548 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:24:44,549 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:24:44,558 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:44" (1/1) ... [2023-11-06 22:24:44,559 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:44" (1/1) ... [2023-11-06 22:24:44,560 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:44" (1/1) ... [2023-11-06 22:24:44,560 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:44" (1/1) ... [2023-11-06 22:24:44,564 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:44" (1/1) ... [2023-11-06 22:24:44,568 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:44" (1/1) ... [2023-11-06 22:24:44,569 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:44" (1/1) ... [2023-11-06 22:24:44,570 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:44" (1/1) ... [2023-11-06 22:24:44,572 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:24:44,573 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:24:44,573 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:24:44,573 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:24:44,574 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:44" (1/1) ... [2023-11-06 22:24:44,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:24:44,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad4a3260-b94c-499c-b1d7-c155f5b887fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:24:44,604 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad4a3260-b94c-499c-b1d7-c155f5b887fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:24:44,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad4a3260-b94c-499c-b1d7-c155f5b887fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:24:44,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:24:44,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:24:44,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:24:44,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:24:44,701 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:24:44,702 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:24:44,865 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:24:44,871 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:24:44,872 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-06 22:24:44,874 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:24:44 BoogieIcfgContainer [2023-11-06 22:24:44,874 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:24:44,877 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:24:44,877 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:24:44,881 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:24:44,881 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:24:44" (1/3) ... [2023-11-06 22:24:44,882 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f3bcdfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:24:44, skipping insertion in model container [2023-11-06 22:24:44,882 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:44" (2/3) ... [2023-11-06 22:24:44,883 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f3bcdfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:24:44, skipping insertion in model container [2023-11-06 22:24:44,883 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:24:44" (3/3) ... [2023-11-06 22:24:44,884 INFO L112 eAbstractionObserver]: Analyzing ICFG nested5-1.c [2023-11-06 22:24:44,906 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:24:44,906 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:24:44,981 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:24:44,989 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@19d4555e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:24:44,989 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:24:44,994 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 19 states have (on average 1.631578947368421) internal successors, (31), 20 states have internal predecessors, (31), 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) [2023-11-06 22:24:45,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-06 22:24:45,001 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:24:45,001 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:24:45,002 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:24:45,008 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:24:45,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1296464707, now seen corresponding path program 1 times [2023-11-06 22:24:45,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:24:45,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405368838] [2023-11-06 22:24:45,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:24:45,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:24:45,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:24:45,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:24:45,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:24:45,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405368838] [2023-11-06 22:24:45,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405368838] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:24:45,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:24:45,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:24:45,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803448842] [2023-11-06 22:24:45,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:24:45,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:24:45,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:24:45,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:24:45,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:24:45,353 INFO L87 Difference]: Start difference. First operand has 21 states, 19 states have (on average 1.631578947368421) internal successors, (31), 20 states have internal predecessors, (31), 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 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2023-11-06 22:24:45,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:24:45,430 INFO L93 Difference]: Finished difference Result 51 states and 81 transitions. [2023-11-06 22:24:45,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:24:45,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2023-11-06 22:24:45,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:24:45,443 INFO L225 Difference]: With dead ends: 51 [2023-11-06 22:24:45,443 INFO L226 Difference]: Without dead ends: 26 [2023-11-06 22:24:45,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:24:45,454 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 12 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:24:45,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 41 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:24:45,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2023-11-06 22:24:45,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 18. [2023-11-06 22:24:45,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 states have internal predecessors, (22), 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) [2023-11-06 22:24:45,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2023-11-06 22:24:45,494 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 10 [2023-11-06 22:24:45,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:24:45,494 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2023-11-06 22:24:45,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2023-11-06 22:24:45,495 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2023-11-06 22:24:45,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-06 22:24:45,496 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:24:45,496 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:24:45,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:24:45,496 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:24:45,497 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:24:45,497 INFO L85 PathProgramCache]: Analyzing trace with hash -308834241, now seen corresponding path program 1 times [2023-11-06 22:24:45,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:24:45,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894797254] [2023-11-06 22:24:45,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:24:45,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:24:45,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:24:45,682 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:24:45,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:24:45,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894797254] [2023-11-06 22:24:45,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894797254] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:24:45,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1589255286] [2023-11-06 22:24:45,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:24:45,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:24:45,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad4a3260-b94c-499c-b1d7-c155f5b887fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:24:45,704 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad4a3260-b94c-499c-b1d7-c155f5b887fb/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:24:45,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad4a3260-b94c-499c-b1d7-c155f5b887fb/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:24:45,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:24:45,790 INFO L262 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:24:45,795 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:24:45,855 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:24:45,855 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:24:45,909 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:24:45,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1589255286] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:24:45,910 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:24:45,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-11-06 22:24:45,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047527415] [2023-11-06 22:24:45,911 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:24:45,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:24:45,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:24:45,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:24:45,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:24:45,917 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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) [2023-11-06 22:24:46,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:24:46,011 INFO L93 Difference]: Finished difference Result 47 states and 61 transitions. [2023-11-06 22:24:46,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:24:46,012 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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 12 [2023-11-06 22:24:46,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:24:46,014 INFO L225 Difference]: With dead ends: 47 [2023-11-06 22:24:46,014 INFO L226 Difference]: Without dead ends: 31 [2023-11-06 22:24:46,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:24:46,016 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 39 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:24:46,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 58 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:24:46,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-11-06 22:24:46,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 24. [2023-11-06 22:24:46,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 23 states have internal predecessors, (28), 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) [2023-11-06 22:24:46,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2023-11-06 22:24:46,024 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 12 [2023-11-06 22:24:46,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:24:46,025 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2023-11-06 22:24:46,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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) [2023-11-06 22:24:46,026 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2023-11-06 22:24:46,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-06 22:24:46,026 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:24:46,027 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:24:46,036 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad4a3260-b94c-499c-b1d7-c155f5b887fb/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-06 22:24:46,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad4a3260-b94c-499c-b1d7-c155f5b887fb/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-06 22:24:46,232 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:24:46,233 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:24:46,233 INFO L85 PathProgramCache]: Analyzing trace with hash 83697605, now seen corresponding path program 2 times [2023-11-06 22:24:46,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:24:46,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074721285] [2023-11-06 22:24:46,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:24:46,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:24:46,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:24:46,502 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:24:46,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:24:46,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074721285] [2023-11-06 22:24:46,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074721285] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:24:46,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1686530188] [2023-11-06 22:24:46,503 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:24:46,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:24:46,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad4a3260-b94c-499c-b1d7-c155f5b887fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:24:46,505 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad4a3260-b94c-499c-b1d7-c155f5b887fb/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:24:46,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad4a3260-b94c-499c-b1d7-c155f5b887fb/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 22:24:46,578 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 22:24:46,578 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:24:46,580 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-06 22:24:46,583 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:24:46,637 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:24:46,638 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:24:46,813 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:24:46,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1686530188] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:24:46,813 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:24:46,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2023-11-06 22:24:46,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897017020] [2023-11-06 22:24:46,814 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:24:46,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-06 22:24:46,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:24:46,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-06 22:24:46,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2023-11-06 22:24:46,817 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 13 states have internal predecessors, (30), 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) [2023-11-06 22:24:47,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:24:47,203 INFO L93 Difference]: Finished difference Result 65 states and 82 transitions. [2023-11-06 22:24:47,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:24:47,204 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 13 states have internal predecessors, (30), 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 18 [2023-11-06 22:24:47,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:24:47,205 INFO L225 Difference]: With dead ends: 65 [2023-11-06 22:24:47,205 INFO L226 Difference]: Without dead ends: 43 [2023-11-06 22:24:47,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=110, Invalid=162, Unknown=0, NotChecked=0, Total=272 [2023-11-06 22:24:47,207 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 33 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:24:47,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 130 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:24:47,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-11-06 22:24:47,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 36. [2023-11-06 22:24:47,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 35 states have internal predecessors, (40), 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) [2023-11-06 22:24:47,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2023-11-06 22:24:47,217 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 18 [2023-11-06 22:24:47,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:24:47,217 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2023-11-06 22:24:47,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 13 states have internal predecessors, (30), 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) [2023-11-06 22:24:47,218 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2023-11-06 22:24:47,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-06 22:24:47,219 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:24:47,219 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:24:47,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad4a3260-b94c-499c-b1d7-c155f5b887fb/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:24:47,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad4a3260-b94c-499c-b1d7-c155f5b887fb/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:24:47,438 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:24:47,438 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:24:47,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1185224367, now seen corresponding path program 3 times [2023-11-06 22:24:47,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:24:47,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584726059] [2023-11-06 22:24:47,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:24:47,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:24:47,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:24:47,810 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:24:47,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:24:47,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584726059] [2023-11-06 22:24:47,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584726059] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:24:47,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1452750976] [2023-11-06 22:24:47,814 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-06 22:24:47,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:24:47,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad4a3260-b94c-499c-b1d7-c155f5b887fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:24:47,820 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad4a3260-b94c-499c-b1d7-c155f5b887fb/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:24:47,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad4a3260-b94c-499c-b1d7-c155f5b887fb/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 22:24:47,879 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-11-06 22:24:47,879 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:24:47,880 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-06 22:24:47,882 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:24:48,143 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-11-06 22:24:48,143 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:24:48,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1452750976] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:24:48,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:24:48,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [14] total 18 [2023-11-06 22:24:48,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994133602] [2023-11-06 22:24:48,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:24:48,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:24:48,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:24:48,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:24:48,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2023-11-06 22:24:48,147 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 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) [2023-11-06 22:24:48,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:24:48,334 INFO L93 Difference]: Finished difference Result 43 states and 50 transitions. [2023-11-06 22:24:48,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:24:48,335 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 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 30 [2023-11-06 22:24:48,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:24:48,336 INFO L225 Difference]: With dead ends: 43 [2023-11-06 22:24:48,336 INFO L226 Difference]: Without dead ends: 0 [2023-11-06 22:24:48,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2023-11-06 22:24:48,338 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 24 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:24:48,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 79 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:24:48,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-06 22:24:48,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-06 22:24:48,339 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) [2023-11-06 22:24:48,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-06 22:24:48,344 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2023-11-06 22:24:48,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:24:48,344 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:24:48,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 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) [2023-11-06 22:24:48,345 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-06 22:24:48,345 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-06 22:24:48,348 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-06 22:24:48,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad4a3260-b94c-499c-b1d7-c155f5b887fb/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:24:48,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad4a3260-b94c-499c-b1d7-c155f5b887fb/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:24:48,556 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-06 22:24:48,662 INFO L899 garLoopResultBuilder]: For program point L23-2(line 23) no Hoare annotation was computed. [2023-11-06 22:24:48,662 INFO L895 garLoopResultBuilder]: At program point L23-3(line 23) the Hoare annotation is: (or (< (mod (+ 4294967295 |ULTIMATE.start_main_~v~0#1|) 4294967296) 10) (= |ULTIMATE.start_main_~v~0#1| 0)) [2023-11-06 22:24:48,663 INFO L899 garLoopResultBuilder]: For program point L23-4(line 23) no Hoare annotation was computed. [2023-11-06 22:24:48,663 INFO L899 garLoopResultBuilder]: For program point L19-2(lines 19 25) no Hoare annotation was computed. [2023-11-06 22:24:48,663 INFO L895 garLoopResultBuilder]: At program point L19-3(lines 19 25) the Hoare annotation is: (or (< (mod |ULTIMATE.start_main_~v~0#1| 4294967296) 10) (< (mod (+ 4294967295 |ULTIMATE.start_main_~v~0#1|) 4294967296) 10)) [2023-11-06 22:24:48,663 INFO L899 garLoopResultBuilder]: For program point L19-4(lines 19 25) no Hoare annotation was computed. [2023-11-06 22:24:48,663 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 12 27) the Hoare annotation is: true [2023-11-06 22:24:48,663 INFO L899 garLoopResultBuilder]: For program point L7(line 7) no Hoare annotation was computed. [2023-11-06 22:24:48,664 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-06 22:24:48,664 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-06 22:24:48,664 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7) no Hoare annotation was computed. [2023-11-06 22:24:48,664 INFO L899 garLoopResultBuilder]: For program point L20-2(lines 20 25) no Hoare annotation was computed. [2023-11-06 22:24:48,664 INFO L895 garLoopResultBuilder]: At program point L20-3(lines 20 25) the Hoare annotation is: (or (< (mod |ULTIMATE.start_main_~v~0#1| 4294967296) 10) (< (mod (+ 4294967295 |ULTIMATE.start_main_~v~0#1|) 4294967296) 10)) [2023-11-06 22:24:48,664 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-06 22:24:48,665 INFO L899 garLoopResultBuilder]: For program point L21-2(lines 21 25) no Hoare annotation was computed. [2023-11-06 22:24:48,665 INFO L895 garLoopResultBuilder]: At program point L21-3(lines 21 25) the Hoare annotation is: (or (< (mod |ULTIMATE.start_main_~v~0#1| 4294967296) 10) (< (mod (+ 4294967295 |ULTIMATE.start_main_~v~0#1|) 4294967296) 10)) [2023-11-06 22:24:48,665 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-06 22:24:48,665 INFO L899 garLoopResultBuilder]: For program point L22-2(lines 22 25) no Hoare annotation was computed. [2023-11-06 22:24:48,665 INFO L895 garLoopResultBuilder]: At program point L22-3(lines 22 25) the Hoare annotation is: (or (< (mod |ULTIMATE.start_main_~v~0#1| 4294967296) 10) (< (mod (+ 4294967295 |ULTIMATE.start_main_~v~0#1|) 4294967296) 10)) [2023-11-06 22:24:48,665 INFO L899 garLoopResultBuilder]: For program point L6(lines 6 8) no Hoare annotation was computed. [2023-11-06 22:24:48,666 INFO L895 garLoopResultBuilder]: At program point L6-2(lines 5 10) the Hoare annotation is: (and (<= (mod (+ 4294967295 |ULTIMATE.start_main_~v~0#1|) 4294967296) 9) (exists ((v_y_4 Int)) (let ((.cse1 (* v_y_4 4))) (let ((.cse0 (+ |ULTIMATE.start___VERIFIER_assert_~cond#1| .cse1))) (and (<= .cse0 4294967295) (<= (mod (+ |ULTIMATE.start___VERIFIER_assert_~cond#1| 4294967295 .cse1) 4294967296) 9) (<= 10 .cse0))))) (<= 10 (mod |ULTIMATE.start_main_~v~0#1| 4294967296)) (<= 0 |ULTIMATE.start___VERIFIER_assert_~cond#1|) (<= |ULTIMATE.start___VERIFIER_assert_~cond#1| 3)) [2023-11-06 22:24:48,672 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1] [2023-11-06 22:24:48,675 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:24:48,702 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_y_4 : int :: (~cond + v_y_4 * 4 <= 4294967295 && (~cond + 4294967295 + v_y_4 * 4) % 4294967296 <= 9) && 10 <= ~cond + v_y_4 * 4) could not be translated [2023-11-06 22:24:48,705 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_y_4 : int :: (~cond + v_y_4 * 4 <= 4294967295 && (~cond + 4294967295 + v_y_4 * 4) % 4294967296 <= 9) && 10 <= ~cond + v_y_4 * 4) could not be translated [2023-11-06 22:24:48,709 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:24:48 BoogieIcfgContainer [2023-11-06 22:24:48,709 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:24:48,710 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:24:48,710 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:24:48,710 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:24:48,711 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:24:44" (3/4) ... [2023-11-06 22:24:48,714 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 22:24:48,725 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-06 22:24:48,727 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-06 22:24:48,727 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 22:24:48,728 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 22:24:48,821 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad4a3260-b94c-499c-b1d7-c155f5b887fb/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:24:48,822 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad4a3260-b94c-499c-b1d7-c155f5b887fb/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 22:24:48,823 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:24:48,824 INFO L158 Benchmark]: Toolchain (without parser) took 4569.16ms. Allocated memory was 140.5MB in the beginning and 180.4MB in the end (delta: 39.8MB). Free memory was 94.6MB in the beginning and 62.6MB in the end (delta: 32.1MB). Peak memory consumption was 70.5MB. Max. memory is 16.1GB. [2023-11-06 22:24:48,824 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 140.5MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:24:48,824 INFO L158 Benchmark]: CACSL2BoogieTranslator took 255.55ms. Allocated memory is still 140.5MB. Free memory was 94.6MB in the beginning and 84.3MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 22:24:48,825 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.11ms. Allocated memory is still 140.5MB. Free memory was 84.3MB in the beginning and 82.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:24:48,825 INFO L158 Benchmark]: Boogie Preprocessor took 23.92ms. Allocated memory is still 140.5MB. Free memory was 82.7MB in the beginning and 81.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:24:48,825 INFO L158 Benchmark]: RCFGBuilder took 301.17ms. Allocated memory is still 140.5MB. Free memory was 81.5MB in the beginning and 71.3MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 22:24:48,826 INFO L158 Benchmark]: TraceAbstraction took 3832.04ms. Allocated memory was 140.5MB in the beginning and 180.4MB in the end (delta: 39.8MB). Free memory was 70.4MB in the beginning and 67.7MB in the end (delta: 2.7MB). Peak memory consumption was 43.3MB. Max. memory is 16.1GB. [2023-11-06 22:24:48,826 INFO L158 Benchmark]: Witness Printer took 113.22ms. Allocated memory is still 180.4MB. Free memory was 66.6MB in the beginning and 62.6MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:24:48,828 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 140.5MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 255.55ms. Allocated memory is still 140.5MB. Free memory was 94.6MB in the beginning and 84.3MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.11ms. Allocated memory is still 140.5MB. Free memory was 84.3MB in the beginning and 82.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.92ms. Allocated memory is still 140.5MB. Free memory was 82.7MB in the beginning and 81.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 301.17ms. Allocated memory is still 140.5MB. Free memory was 81.5MB in the beginning and 71.3MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 3832.04ms. Allocated memory was 140.5MB in the beginning and 180.4MB in the end (delta: 39.8MB). Free memory was 70.4MB in the beginning and 67.7MB in the end (delta: 2.7MB). Peak memory consumption was 43.3MB. Max. memory is 16.1GB. * Witness Printer took 113.22ms. Allocated memory is still 180.4MB. Free memory was 66.6MB in the beginning and 62.6MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_y_4 : int :: (~cond + v_y_4 * 4 <= 4294967295 && (~cond + 4294967295 + v_y_4 * 4) % 4294967296 <= 9) && 10 <= ~cond + v_y_4 * 4) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_y_4 : int :: (~cond + v_y_4 * 4 <= 4294967295 && (~cond + 4294967295 + v_y_4 * 4) % 4294967296 <= 9) && 10 <= ~cond + v_y_4 * 4) could not be translated * 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: 7]: 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, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.7s, OverallIterations: 4, TraceHistogramMax: 10, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 108 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 108 mSDsluCounter, 308 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 223 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 135 IncrementalHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 85 mSDtfsCounter, 135 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 123 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=3, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 22 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 29 NumberOfFragments, 109 HoareAnnotationTreeSize, 7 FomulaSimplifications, 172 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 12 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 130 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 151 ConstructedInterpolants, 1 QuantifiedInterpolants, 399 SizeOfPredicates, 3 NumberOfNonLiveVariables, 174 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 9 InterpolantComputations, 2 PerfectInterpolantSequences, 100/251 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: 21]: Loop Invariant Derived loop invariant: (((v % 4294967296) < 10) || (((4294967295 + v) % 4294967296) < 10)) - InvariantResult [Line: 5]: Loop Invariant [2023-11-06 22:24:48,847 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_y_4 : int :: (~cond + v_y_4 * 4 <= 4294967295 && (~cond + 4294967295 + v_y_4 * 4) % 4294967296 <= 9) && 10 <= ~cond + v_y_4 * 4) could not be translated [2023-11-06 22:24:48,848 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_y_4 : int :: (~cond + v_y_4 * 4 <= 4294967295 && (~cond + 4294967295 + v_y_4 * 4) % 4294967296 <= 9) && 10 <= ~cond + v_y_4 * 4) could not be translated Derived loop invariant: ((((((4294967295 + v) % 4294967296) <= 9) && (10 <= (v % 4294967296))) && (0 <= cond)) && (cond <= 3)) - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: (((v % 4294967296) < 10) || (((4294967295 + v) % 4294967296) < 10)) - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: ((((4294967295 + v) % 4294967296) < 10) || (v == 0)) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: (((v % 4294967296) < 10) || (((4294967295 + v) % 4294967296) < 10)) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (((v % 4294967296) < 10) || (((4294967295 + v) % 4294967296) < 10)) RESULT: Ultimate proved your program to be correct! [2023-11-06 22:24:48,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad4a3260-b94c-499c-b1d7-c155f5b887fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE