./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-restricted-15/GCD-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows 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_176e53ed-161d-477e-8b14-9afa1638378f/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_176e53ed-161d-477e-8b14-9afa1638378f/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_176e53ed-161d-477e-8b14-9afa1638378f/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_176e53ed-161d-477e-8b14-9afa1638378f/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-restricted-15/GCD-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_176e53ed-161d-477e-8b14-9afa1638378f/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_176e53ed-161d-477e-8b14-9afa1638378f/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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5f52b905489768d11946f99b46b2e235c97efbb56a51bc32b8b274637f7dd5d8 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:01:18,648 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:01:18,748 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_176e53ed-161d-477e-8b14-9afa1638378f/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-06 22:01:18,753 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:01:18,754 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:01:18,779 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:01:18,779 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:01:18,780 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:01:18,781 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:01:18,781 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:01:18,782 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:01:18,783 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:01:18,783 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:01:18,784 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:01:18,784 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:01:18,785 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:01:18,786 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:01:18,786 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:01:18,786 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:01:18,787 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:01:18,787 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 22:01:18,788 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:01:18,788 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:01:18,789 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:01:18,789 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:01:18,790 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:01:18,790 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:01:18,791 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:01:18,791 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:01:18,792 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:01:18,792 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:01:18,792 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:01:18,793 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:01:18,793 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:01:18,793 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:01:18,793 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:01:18,794 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:01:18,794 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:01:18,794 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_176e53ed-161d-477e-8b14-9afa1638378f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_176e53ed-161d-477e-8b14-9afa1638378f/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5f52b905489768d11946f99b46b2e235c97efbb56a51bc32b8b274637f7dd5d8 [2023-11-06 22:01:19,130 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:01:19,167 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:01:19,170 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:01:19,171 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:01:19,172 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:01:19,173 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_176e53ed-161d-477e-8b14-9afa1638378f/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/termination-restricted-15/GCD-1.c [2023-11-06 22:01:22,212 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:01:22,398 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:01:22,398 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_176e53ed-161d-477e-8b14-9afa1638378f/sv-benchmarks/c/termination-restricted-15/GCD-1.c [2023-11-06 22:01:22,405 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_176e53ed-161d-477e-8b14-9afa1638378f/bin/uautomizer-verify-WvqO1wxjHP/data/393a8c456/26f803a712124c04bb544b19866b957a/FLAG0fab12e2a [2023-11-06 22:01:22,419 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_176e53ed-161d-477e-8b14-9afa1638378f/bin/uautomizer-verify-WvqO1wxjHP/data/393a8c456/26f803a712124c04bb544b19866b957a [2023-11-06 22:01:22,422 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:01:22,423 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:01:22,425 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:01:22,425 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:01:22,431 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:01:22,431 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:01:22" (1/1) ... [2023-11-06 22:01:22,433 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b934b25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:22, skipping insertion in model container [2023-11-06 22:01:22,433 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:01:22" (1/1) ... [2023-11-06 22:01:22,453 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:01:22,653 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:01:22,658 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:01:22,672 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:01:22,683 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:01:22,683 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:22 WrapperNode [2023-11-06 22:01:22,683 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:01:22,684 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:01:22,685 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:01:22,685 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:01:22,692 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:22" (1/1) ... [2023-11-06 22:01:22,696 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:22" (1/1) ... [2023-11-06 22:01:22,713 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 35 [2023-11-06 22:01:22,713 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:01:22,714 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:01:22,714 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:01:22,714 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:01:22,722 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:22" (1/1) ... [2023-11-06 22:01:22,723 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:22" (1/1) ... [2023-11-06 22:01:22,723 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:22" (1/1) ... [2023-11-06 22:01:22,724 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:22" (1/1) ... [2023-11-06 22:01:22,726 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:22" (1/1) ... [2023-11-06 22:01:22,729 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:22" (1/1) ... [2023-11-06 22:01:22,730 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:22" (1/1) ... [2023-11-06 22:01:22,730 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:22" (1/1) ... [2023-11-06 22:01:22,732 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:01:22,733 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:01:22,733 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:01:22,733 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:01:22,734 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:22" (1/1) ... [2023-11-06 22:01:22,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:01:22,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_176e53ed-161d-477e-8b14-9afa1638378f/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:01:22,761 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_176e53ed-161d-477e-8b14-9afa1638378f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:01:22,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_176e53ed-161d-477e-8b14-9afa1638378f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:01:22,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:01:22,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:01:22,911 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:01:22,913 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:01:23,076 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:01:23,082 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:01:23,083 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-06 22:01:23,085 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:01:23 BoogieIcfgContainer [2023-11-06 22:01:23,085 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:01:23,088 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:01:23,088 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:01:23,091 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:01:23,091 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:01:22" (1/3) ... [2023-11-06 22:01:23,092 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18b81789 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:01:23, skipping insertion in model container [2023-11-06 22:01:23,092 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:22" (2/3) ... [2023-11-06 22:01:23,093 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18b81789 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:01:23, skipping insertion in model container [2023-11-06 22:01:23,093 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:01:23" (3/3) ... [2023-11-06 22:01:23,094 INFO L112 eAbstractionObserver]: Analyzing ICFG GCD-1.c [2023-11-06 22:01:23,113 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:01:23,114 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-06 22:01:23,165 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:01:23,174 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;@79d82444, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:01:23,175 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-06 22:01:23,179 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 14 states have internal predecessors, (20), 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 22:01:23,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-06 22:01:23,186 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:01:23,187 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:01:23,188 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-06 22:01:23,195 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:01:23,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1810725166, now seen corresponding path program 1 times [2023-11-06 22:01:23,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:01:23,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725703049] [2023-11-06 22:01:23,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:01:23,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:01:23,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:23,388 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 22:01:23,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:01:23,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725703049] [2023-11-06 22:01:23,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725703049] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:01:23,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:01:23,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:01:23,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599386737] [2023-11-06 22:01:23,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:01:23,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:01:23,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:01:23,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:01:23,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:01:23,445 INFO L87 Difference]: Start difference. First operand has 15 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 14 states have internal predecessors, (20), 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, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 22:01:23,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:01:23,486 INFO L93 Difference]: Finished difference Result 27 states and 38 transitions. [2023-11-06 22:01:23,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:01:23,489 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2023-11-06 22:01:23,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:01:23,497 INFO L225 Difference]: With dead ends: 27 [2023-11-06 22:01:23,497 INFO L226 Difference]: Without dead ends: 10 [2023-11-06 22:01:23,500 INFO L412 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 [2023-11-06 22:01:23,503 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 2 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:01:23,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 17 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:01:23,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2023-11-06 22:01:23,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2023-11-06 22:01:23,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 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 22:01:23,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2023-11-06 22:01:23,532 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 13 transitions. Word has length 7 [2023-11-06 22:01:23,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:01:23,532 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 13 transitions. [2023-11-06 22:01:23,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 22:01:23,533 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 13 transitions. [2023-11-06 22:01:23,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-06 22:01:23,534 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:01:23,534 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:01:23,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:01:23,535 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-06 22:01:23,535 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:01:23,536 INFO L85 PathProgramCache]: Analyzing trace with hash 297905362, now seen corresponding path program 1 times [2023-11-06 22:01:23,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:01:23,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723980000] [2023-11-06 22:01:23,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:01:23,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:01:23,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:23,626 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 22:01:23,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:01:23,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723980000] [2023-11-06 22:01:23,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723980000] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:01:23,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:01:23,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:01:23,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108518527] [2023-11-06 22:01:23,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:01:23,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:01:23,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:01:23,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:01:23,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:01:23,631 INFO L87 Difference]: Start difference. First operand 10 states and 13 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 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 22:01:23,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:01:23,780 INFO L93 Difference]: Finished difference Result 30 states and 38 transitions. [2023-11-06 22:01:23,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:01:23,781 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 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 8 [2023-11-06 22:01:23,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:01:23,782 INFO L225 Difference]: With dead ends: 30 [2023-11-06 22:01:23,782 INFO L226 Difference]: Without dead ends: 29 [2023-11-06 22:01:23,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:01:23,785 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 32 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:01:23,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 14 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:01:23,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-11-06 22:01:23,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 16. [2023-11-06 22:01:23,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 15 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 22:01:23,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 22 transitions. [2023-11-06 22:01:23,793 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 22 transitions. Word has length 8 [2023-11-06 22:01:23,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:01:23,793 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 22 transitions. [2023-11-06 22:01:23,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 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 22:01:23,794 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 22 transitions. [2023-11-06 22:01:23,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-06 22:01:23,795 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:01:23,795 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:01:23,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:01:23,795 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-06 22:01:23,796 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:01:23,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1496265452, now seen corresponding path program 1 times [2023-11-06 22:01:23,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:01:23,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749417397] [2023-11-06 22:01:23,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:01:23,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:01:23,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:23,939 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:01:23,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:01:23,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749417397] [2023-11-06 22:01:23,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749417397] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:01:23,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1055152903] [2023-11-06 22:01:23,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:01:23,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:01:23,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_176e53ed-161d-477e-8b14-9afa1638378f/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:01:23,945 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_176e53ed-161d-477e-8b14-9afa1638378f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:01:23,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_176e53ed-161d-477e-8b14-9afa1638378f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:01:23,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:23,991 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:01:23,996 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:01:24,107 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:01:24,107 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:01:24,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1055152903] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:01:24,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:01:24,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-06 22:01:24,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486068090] [2023-11-06 22:01:24,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:01:24,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:01:24,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:01:24,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:01:24,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:01:24,111 INFO L87 Difference]: Start difference. First operand 16 states and 22 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 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 22:01:24,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:01:24,210 INFO L93 Difference]: Finished difference Result 29 states and 37 transitions. [2023-11-06 22:01:24,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:01:24,211 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 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 11 [2023-11-06 22:01:24,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:01:24,213 INFO L225 Difference]: With dead ends: 29 [2023-11-06 22:01:24,214 INFO L226 Difference]: Without dead ends: 28 [2023-11-06 22:01:24,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:01:24,216 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 20 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:01:24,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 15 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:01:24,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-11-06 22:01:24,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 16. [2023-11-06 22:01:24,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 15 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 22:01:24,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 22 transitions. [2023-11-06 22:01:24,224 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 22 transitions. Word has length 11 [2023-11-06 22:01:24,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:01:24,225 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 22 transitions. [2023-11-06 22:01:24,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 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 22:01:24,225 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 22 transitions. [2023-11-06 22:01:24,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-06 22:01:24,226 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:01:24,226 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:01:24,232 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_176e53ed-161d-477e-8b14-9afa1638378f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-06 22:01:24,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_176e53ed-161d-477e-8b14-9afa1638378f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:01:24,437 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-06 22:01:24,437 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:01:24,437 INFO L85 PathProgramCache]: Analyzing trace with hash -345812017, now seen corresponding path program 1 times [2023-11-06 22:01:24,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:01:24,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396887536] [2023-11-06 22:01:24,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:01:24,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:01:24,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:24,562 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:01:24,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:01:24,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396887536] [2023-11-06 22:01:24,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396887536] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:01:24,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [931173823] [2023-11-06 22:01:24,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:01:24,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:01:24,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_176e53ed-161d-477e-8b14-9afa1638378f/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:01:24,566 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_176e53ed-161d-477e-8b14-9afa1638378f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:01:24,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_176e53ed-161d-477e-8b14-9afa1638378f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 22:01:24,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:24,622 INFO L262 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:01:24,624 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:01:24,701 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:01:24,702 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:01:24,800 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:01:24,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [931173823] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:01:24,800 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:01:24,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-11-06 22:01:24,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623727180] [2023-11-06 22:01:24,801 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:01:24,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-06 22:01:24,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:01:24,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-06 22:01:24,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-11-06 22:01:24,808 INFO L87 Difference]: Start difference. First operand 16 states and 22 transitions. Second operand has 13 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 13 states have internal predecessors, (26), 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 22:01:24,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:01:24,923 INFO L93 Difference]: Finished difference Result 17 states and 23 transitions. [2023-11-06 22:01:24,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:01:24,924 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 13 states have internal predecessors, (26), 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 11 [2023-11-06 22:01:24,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:01:24,925 INFO L225 Difference]: With dead ends: 17 [2023-11-06 22:01:24,925 INFO L226 Difference]: Without dead ends: 0 [2023-11-06 22:01:24,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2023-11-06 22:01:24,927 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 50 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:01:24,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 9 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:01:24,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-06 22:01:24,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-06 22:01:24,935 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 22:01:24,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-06 22:01:24,935 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2023-11-06 22:01:24,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:01:24,936 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:01:24,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 13 states have internal predecessors, (26), 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 22:01:24,936 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-06 22:01:24,937 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-06 22:01:24,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-06 22:01:24,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-06 22:01:24,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_176e53ed-161d-477e-8b14-9afa1638378f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:01:25,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_176e53ed-161d-477e-8b14-9afa1638378f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:01:25,148 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-06 22:01:25,216 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2023-11-06 22:01:25,216 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-06 22:01:25,217 INFO L895 garLoopResultBuilder]: At program point L23-2(lines 23 25) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_main_~xtmp~0#1| 2147483647) (<= |ULTIMATE.start_main_~tmp~0#1| 2147483647) (<= |ULTIMATE.start_main_~y~0#1| 2147483647)) [2023-11-06 22:01:25,218 INFO L899 garLoopResultBuilder]: For program point L23-3(lines 17 27) no Hoare annotation was computed. [2023-11-06 22:01:25,218 INFO L899 garLoopResultBuilder]: For program point L17(lines 17 27) no Hoare annotation was computed. [2023-11-06 22:01:25,218 INFO L895 garLoopResultBuilder]: At program point L13-2(lines 13 31) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_main_~y~0#1| 2147483647)) [2023-11-06 22:01:25,219 INFO L899 garLoopResultBuilder]: For program point L13-3(lines 13 31) no Hoare annotation was computed. [2023-11-06 22:01:25,219 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-06 22:01:25,219 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 5 34) the Hoare annotation is: true [2023-11-06 22:01:25,219 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-06 22:01:25,220 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2023-11-06 22:01:25,220 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-06 22:01:25,220 INFO L899 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2023-11-06 22:01:25,220 INFO L899 garLoopResultBuilder]: For program point L24-1(line 24) no Hoare annotation was computed. [2023-11-06 22:01:25,220 INFO L899 garLoopResultBuilder]: For program point L20(lines 20 26) no Hoare annotation was computed. [2023-11-06 22:01:25,224 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-06 22:01:25,226 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:01:25,248 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:01:25 BoogieIcfgContainer [2023-11-06 22:01:25,248 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:01:25,250 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:01:25,250 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:01:25,251 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:01:25,251 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:01:23" (3/4) ... [2023-11-06 22:01:25,253 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 22:01:25,263 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-06 22:01:25,263 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 22:01:25,263 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-06 22:01:25,339 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_176e53ed-161d-477e-8b14-9afa1638378f/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:01:25,343 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_176e53ed-161d-477e-8b14-9afa1638378f/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 22:01:25,343 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:01:25,344 INFO L158 Benchmark]: Toolchain (without parser) took 2920.43ms. Allocated memory is still 203.4MB. Free memory was 169.8MB in the beginning and 71.8MB in the end (delta: 98.1MB). Peak memory consumption was 96.9MB. Max. memory is 16.1GB. [2023-11-06 22:01:25,344 INFO L158 Benchmark]: CDTParser took 0.50ms. Allocated memory is still 125.8MB. Free memory was 94.7MB in the beginning and 94.6MB in the end (delta: 67.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:01:25,345 INFO L158 Benchmark]: CACSL2BoogieTranslator took 258.65ms. Allocated memory is still 203.4MB. Free memory was 169.5MB in the beginning and 170.3MB in the end (delta: -854.1kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-06 22:01:25,345 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.87ms. Allocated memory is still 203.4MB. Free memory was 170.3MB in the beginning and 169.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:01:25,346 INFO L158 Benchmark]: Boogie Preprocessor took 18.00ms. Allocated memory is still 203.4MB. Free memory was 169.1MB in the beginning and 168.2MB in the end (delta: 847.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:01:25,346 INFO L158 Benchmark]: RCFGBuilder took 352.61ms. Allocated memory is still 203.4MB. Free memory was 167.4MB in the beginning and 156.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 22:01:25,346 INFO L158 Benchmark]: TraceAbstraction took 2160.72ms. Allocated memory is still 203.4MB. Free memory was 156.9MB in the beginning and 75.1MB in the end (delta: 81.8MB). Peak memory consumption was 81.8MB. Max. memory is 16.1GB. [2023-11-06 22:01:25,347 INFO L158 Benchmark]: Witness Printer took 93.45ms. Allocated memory is still 203.4MB. Free memory was 75.1MB in the beginning and 71.8MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:01:25,350 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50ms. Allocated memory is still 125.8MB. Free memory was 94.7MB in the beginning and 94.6MB in the end (delta: 67.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 258.65ms. Allocated memory is still 203.4MB. Free memory was 169.5MB in the beginning and 170.3MB in the end (delta: -854.1kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.87ms. Allocated memory is still 203.4MB. Free memory was 170.3MB in the beginning and 169.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 18.00ms. Allocated memory is still 203.4MB. Free memory was 169.1MB in the beginning and 168.2MB in the end (delta: 847.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 352.61ms. Allocated memory is still 203.4MB. Free memory was 167.4MB in the beginning and 156.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2160.72ms. Allocated memory is still 203.4MB. Free memory was 156.9MB in the beginning and 75.1MB in the end (delta: 81.8MB). Peak memory consumption was 81.8MB. Max. memory is 16.1GB. * Witness Printer took 93.45ms. Allocated memory is still 203.4MB. Free memory was 75.1MB in the beginning and 71.8MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. 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: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 104 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 104 mSDsluCounter, 55 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 33 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 145 IncrementalHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 22 mSDtfsCounter, 145 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=2, InterpolantAutomatonStates: 25, 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, 25 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 8 NumberOfFragments, 24 HoareAnnotationTreeSize, 3 FomulaSimplifications, 51 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 47 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 63 ConstructedInterpolants, 0 QuantifiedInterpolants, 265 SizeOfPredicates, 5 NumberOfNonLiveVariables, 53 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 3/12 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 2 specifications checked. All of them hold - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (((((1 <= y) && (x <= 2147483647)) && (xtmp <= 2147483647)) && (tmp <= 2147483647)) && (y <= 2147483647)) - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: ((x <= 2147483647) && (y <= 2147483647)) RESULT: Ultimate proved your program to be correct! [2023-11-06 22:01:25,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_176e53ed-161d-477e-8b14-9afa1638378f/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