./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-industry-pattern/array_ptr_partial_init.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/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_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-industry-pattern/array_ptr_partial_init.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/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 32bit --witnessprinter.graph.data.programhash 830adb811cc268031c58590b9b139b3834070c408d8c80014d1db1461ae4c329 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:21:07,620 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:21:07,752 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-06 22:21:07,759 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:21:07,760 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:21:07,795 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:21:07,796 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:21:07,796 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:21:07,797 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:21:07,802 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:21:07,804 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:21:07,805 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:21:07,805 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:21:07,807 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:21:07,807 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:21:07,808 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:21:07,808 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:21:07,809 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:21:07,809 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:21:07,810 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:21:07,810 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:21:07,811 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:21:07,811 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 22:21:07,812 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:21:07,812 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:21:07,813 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:21:07,813 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:21:07,814 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:21:07,815 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:21:07,815 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:21:07,816 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:21:07,817 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:21:07,817 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:21:07,817 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:21:07,818 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:21:07,818 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:21:07,818 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:21:07,819 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:21:07,819 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:21:07,819 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:21:07,820 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:21:07,820 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_30fa48b4-513a-4519-b387-3c237fd0ff79/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 830adb811cc268031c58590b9b139b3834070c408d8c80014d1db1461ae4c329 [2023-11-06 22:21:08,143 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:21:08,179 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:21:08,182 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:21:08,183 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:21:08,183 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:21:08,185 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/array-industry-pattern/array_ptr_partial_init.i [2023-11-06 22:21:11,271 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:21:11,516 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:21:11,517 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/sv-benchmarks/c/array-industry-pattern/array_ptr_partial_init.i [2023-11-06 22:21:11,525 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/data/3925752a2/f892d77d07604e278f6d5ca02edf9fd4/FLAG11f93bd72 [2023-11-06 22:21:11,541 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/data/3925752a2/f892d77d07604e278f6d5ca02edf9fd4 [2023-11-06 22:21:11,544 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:21:11,545 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:21:11,547 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:21:11,547 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:21:11,555 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:21:11,556 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:21:11" (1/1) ... [2023-11-06 22:21:11,557 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e675240 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:21:11, skipping insertion in model container [2023-11-06 22:21:11,558 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:21:11" (1/1) ... [2023-11-06 22:21:11,580 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:21:11,734 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:21:11,746 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:21:11,763 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:21:11,780 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:21:11,780 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:21:11 WrapperNode [2023-11-06 22:21:11,780 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:21:11,782 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:21:11,782 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:21:11,782 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:21:11,789 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:21:11" (1/1) ... [2023-11-06 22:21:11,797 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:21:11" (1/1) ... [2023-11-06 22:21:11,816 INFO L138 Inliner]: procedures = 18, calls = 13, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2023-11-06 22:21:11,817 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:21:11,818 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:21:11,818 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:21:11,818 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:21:11,827 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:21:11" (1/1) ... [2023-11-06 22:21:11,827 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:21:11" (1/1) ... [2023-11-06 22:21:11,829 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:21:11" (1/1) ... [2023-11-06 22:21:11,829 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:21:11" (1/1) ... [2023-11-06 22:21:11,834 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:21:11" (1/1) ... [2023-11-06 22:21:11,838 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:21:11" (1/1) ... [2023-11-06 22:21:11,839 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:21:11" (1/1) ... [2023-11-06 22:21:11,840 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:21:11" (1/1) ... [2023-11-06 22:21:11,842 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:21:11,843 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:21:11,844 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:21:11,844 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:21:11,845 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:21:11" (1/1) ... [2023-11-06 22:21:11,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:21:11,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:21:11,882 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:21:11,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:21:11,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 22:21:11,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:21:11,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:21:11,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 22:21:11,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 22:21:11,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:21:11,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:21:12,016 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:21:12,018 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:21:12,186 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:21:12,193 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:21:12,193 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-06 22:21:12,195 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:21:12 BoogieIcfgContainer [2023-11-06 22:21:12,195 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:21:12,198 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:21:12,198 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:21:12,201 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:21:12,202 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:21:11" (1/3) ... [2023-11-06 22:21:12,203 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63173b0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:21:12, skipping insertion in model container [2023-11-06 22:21:12,203 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:21:11" (2/3) ... [2023-11-06 22:21:12,203 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63173b0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:21:12, skipping insertion in model container [2023-11-06 22:21:12,203 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:21:12" (3/3) ... [2023-11-06 22:21:12,205 INFO L112 eAbstractionObserver]: Analyzing ICFG array_ptr_partial_init.i [2023-11-06 22:21:12,233 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:21:12,233 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-06 22:21:12,315 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:21:12,324 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;@19d7b850, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:21:12,324 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-06 22:21:12,329 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 24 states have (on average 1.5833333333333333) internal successors, (38), 30 states have internal predecessors, (38), 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 22:21:12,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-06 22:21:12,339 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:21:12,340 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 22:21:12,341 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:21:12,349 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:21:12,352 INFO L85 PathProgramCache]: Analyzing trace with hash 28698728, now seen corresponding path program 1 times [2023-11-06 22:21:12,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:21:12,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334437847] [2023-11-06 22:21:12,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:12,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:21:12,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:21:12,740 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 22:21:12,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:21:12,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334437847] [2023-11-06 22:21:12,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334437847] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:21:12,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:21:12,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:21:12,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831622562] [2023-11-06 22:21:12,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:21:12,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:21:12,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:21:12,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:21:12,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:21:12,811 INFO L87 Difference]: Start difference. First operand has 31 states, 24 states have (on average 1.5833333333333333) internal successors, (38), 30 states have internal predecessors, (38), 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 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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 22:21:12,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:21:12,930 INFO L93 Difference]: Finished difference Result 75 states and 95 transitions. [2023-11-06 22:21:12,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:21:12,932 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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 5 [2023-11-06 22:21:12,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:21:12,939 INFO L225 Difference]: With dead ends: 75 [2023-11-06 22:21:12,939 INFO L226 Difference]: Without dead ends: 42 [2023-11-06 22:21:12,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:21:12,946 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 17 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:21:12,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 60 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:21:12,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-11-06 22:21:12,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 29. [2023-11-06 22:21:12,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 28 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 22:21:12,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2023-11-06 22:21:12,983 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 5 [2023-11-06 22:21:12,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:21:12,984 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2023-11-06 22:21:12,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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 22:21:12,984 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2023-11-06 22:21:12,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-06 22:21:12,985 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:21:12,985 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2023-11-06 22:21:12,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:21:12,986 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:21:12,987 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:21:12,987 INFO L85 PathProgramCache]: Analyzing trace with hash -363792156, now seen corresponding path program 1 times [2023-11-06 22:21:12,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:21:12,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737778396] [2023-11-06 22:21:12,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:12,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:21:13,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:21:13,222 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 22:21:13,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:21:13,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737778396] [2023-11-06 22:21:13,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737778396] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:21:13,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1359578374] [2023-11-06 22:21:13,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:13,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:21:13,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:21:13,228 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:21:13,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:21:13,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:21:13,342 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:21:13,347 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:21:13,462 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 22:21:13,462 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:21:13,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1359578374] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:21:13,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:21:13,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-06 22:21:13,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699027399] [2023-11-06 22:21:13,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:21:13,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:21:13,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:21:13,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:21:13,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:21:13,467 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 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 22:21:13,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:21:13,607 INFO L93 Difference]: Finished difference Result 42 states and 44 transitions. [2023-11-06 22:21:13,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:21:13,608 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 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 9 [2023-11-06 22:21:13,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:21:13,610 INFO L225 Difference]: With dead ends: 42 [2023-11-06 22:21:13,610 INFO L226 Difference]: Without dead ends: 41 [2023-11-06 22:21:13,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:21:13,616 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 22 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:21:13,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 59 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:21:13,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2023-11-06 22:21:13,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 28. [2023-11-06 22:21:13,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 27 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 22:21:13,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2023-11-06 22:21:13,628 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 9 [2023-11-06 22:21:13,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:21:13,629 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2023-11-06 22:21:13,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 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 22:21:13,629 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2023-11-06 22:21:13,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-06 22:21:13,630 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:21:13,630 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2023-11-06 22:21:13,638 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-06 22:21:13,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:21:13,837 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:21:13,838 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:21:13,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1607345098, now seen corresponding path program 1 times [2023-11-06 22:21:13,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:21:13,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677688483] [2023-11-06 22:21:13,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:13,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:21:13,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:21:13,950 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:21:13,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:21:13,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677688483] [2023-11-06 22:21:13,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677688483] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:21:13,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:21:13,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:21:13,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13291370] [2023-11-06 22:21:13,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:21:13,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:21:13,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:21:13,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:21:13,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:21:13,962 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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 22:21:14,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:21:14,019 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2023-11-06 22:21:14,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:21:14,020 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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 22:21:14,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:21:14,026 INFO L225 Difference]: With dead ends: 29 [2023-11-06 22:21:14,026 INFO L226 Difference]: Without dead ends: 28 [2023-11-06 22:21:14,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:21:14,028 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 14 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:21:14,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 31 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:21:14,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-11-06 22:21:14,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 24. [2023-11-06 22:21:14,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 20 states have (on average 1.3) internal successors, (26), 23 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 22:21:14,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2023-11-06 22:21:14,034 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 10 [2023-11-06 22:21:14,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:21:14,034 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2023-11-06 22:21:14,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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 22:21:14,035 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2023-11-06 22:21:14,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-06 22:21:14,035 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:21:14,036 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:21:14,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:21:14,036 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:21:14,037 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:21:14,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1713504278, now seen corresponding path program 1 times [2023-11-06 22:21:14,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:21:14,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686248559] [2023-11-06 22:21:14,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:14,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:21:14,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:21:14,111 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 22:21:14,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:21:14,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686248559] [2023-11-06 22:21:14,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686248559] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:21:14,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1396814619] [2023-11-06 22:21:14,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:14,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:21:14,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:21:14,114 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:21:14,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 22:21:14,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:21:14,192 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:21:14,198 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:21:14,228 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 22:21:14,228 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:21:14,266 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 22:21:14,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1396814619] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:21:14,267 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:21:14,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-11-06 22:21:14,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545716422] [2023-11-06 22:21:14,267 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:21:14,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:21:14,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:21:14,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:21:14,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:21:14,272 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 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 22:21:14,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:21:14,438 INFO L93 Difference]: Finished difference Result 62 states and 67 transitions. [2023-11-06 22:21:14,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:21:14,444 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 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) Word has length 11 [2023-11-06 22:21:14,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:21:14,444 INFO L225 Difference]: With dead ends: 62 [2023-11-06 22:21:14,445 INFO L226 Difference]: Without dead ends: 45 [2023-11-06 22:21:14,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:21:14,446 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 68 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:21:14,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 56 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:21:14,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2023-11-06 22:21:14,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 32. [2023-11-06 22:21:14,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 31 states have internal predecessors, (34), 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 22:21:14,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 34 transitions. [2023-11-06 22:21:14,453 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 34 transitions. Word has length 11 [2023-11-06 22:21:14,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:21:14,453 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 34 transitions. [2023-11-06 22:21:14,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 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 22:21:14,454 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2023-11-06 22:21:14,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-06 22:21:14,454 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:21:14,455 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:21:14,468 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-06 22:21:14,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:21:14,660 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:21:14,661 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:21:14,661 INFO L85 PathProgramCache]: Analyzing trace with hash -230725406, now seen corresponding path program 2 times [2023-11-06 22:21:14,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:21:14,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567005067] [2023-11-06 22:21:14,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:14,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:21:14,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:21:14,788 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-06 22:21:14,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:21:14,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567005067] [2023-11-06 22:21:14,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567005067] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:21:14,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:21:14,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:21:14,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012455096] [2023-11-06 22:21:14,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:21:14,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:21:14,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:21:14,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:21:14,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:21:14,793 INFO L87 Difference]: Start difference. First operand 32 states and 34 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 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 22:21:14,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:21:14,849 INFO L93 Difference]: Finished difference Result 45 states and 47 transitions. [2023-11-06 22:21:14,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:21:14,850 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 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 19 [2023-11-06 22:21:14,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:21:14,851 INFO L225 Difference]: With dead ends: 45 [2023-11-06 22:21:14,851 INFO L226 Difference]: Without dead ends: 43 [2023-11-06 22:21:14,852 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:21:14,853 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 13 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:21:14,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 38 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:21:14,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-11-06 22:21:14,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 35. [2023-11-06 22:21:14,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 34 states have internal predecessors, (37), 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 22:21:14,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2023-11-06 22:21:14,871 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 19 [2023-11-06 22:21:14,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:21:14,872 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2023-11-06 22:21:14,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 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 22:21:14,872 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2023-11-06 22:21:14,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-06 22:21:14,873 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:21:14,873 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:21:14,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:21:14,875 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:21:14,879 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:21:14,879 INFO L85 PathProgramCache]: Analyzing trace with hash -2133188386, now seen corresponding path program 1 times [2023-11-06 22:21:14,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:21:14,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709677584] [2023-11-06 22:21:14,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:14,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:21:14,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:21:15,123 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 22:21:15,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:21:15,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709677584] [2023-11-06 22:21:15,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709677584] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:21:15,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1192494055] [2023-11-06 22:21:15,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:15,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:21:15,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:21:15,129 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:21:15,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 22:21:15,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:21:15,234 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 22:21:15,237 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:21:15,308 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 22:21:15,309 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:21:15,415 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 22:21:15,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1192494055] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:21:15,416 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:21:15,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2023-11-06 22:21:15,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147295614] [2023-11-06 22:21:15,416 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:21:15,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-06 22:21:15,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:21:15,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-06 22:21:15,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-11-06 22:21:15,419 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand has 18 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 18 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 22:21:15,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:21:15,579 INFO L93 Difference]: Finished difference Result 79 states and 86 transitions. [2023-11-06 22:21:15,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-06 22:21:15,580 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 18 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) Word has length 23 [2023-11-06 22:21:15,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:21:15,580 INFO L225 Difference]: With dead ends: 79 [2023-11-06 22:21:15,581 INFO L226 Difference]: Without dead ends: 59 [2023-11-06 22:21:15,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=171, Invalid=381, Unknown=0, NotChecked=0, Total=552 [2023-11-06 22:21:15,582 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 82 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:21:15,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 93 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:21:15,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2023-11-06 22:21:15,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 51. [2023-11-06 22:21:15,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 47 states have (on average 1.127659574468085) internal successors, (53), 50 states have internal predecessors, (53), 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 22:21:15,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 53 transitions. [2023-11-06 22:21:15,590 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 53 transitions. Word has length 23 [2023-11-06 22:21:15,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:21:15,590 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 53 transitions. [2023-11-06 22:21:15,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 18 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 22:21:15,591 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 53 transitions. [2023-11-06 22:21:15,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-06 22:21:15,592 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:21:15,592 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:21:15,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:21:15,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:21:15,801 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:21:15,801 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:21:15,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1327043278, now seen corresponding path program 2 times [2023-11-06 22:21:15,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:21:15,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892066158] [2023-11-06 22:21:15,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:15,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:21:15,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:21:16,223 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 22:21:16,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:21:16,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892066158] [2023-11-06 22:21:16,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892066158] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:21:16,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [178057689] [2023-11-06 22:21:16,223 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:21:16,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:21:16,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:21:16,225 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:21:16,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-06 22:21:16,352 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 22:21:16,352 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:21:16,354 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-06 22:21:16,359 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:21:16,457 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 22:21:16,457 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:21:16,786 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 22:21:16,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [178057689] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:21:16,787 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:21:16,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2023-11-06 22:21:16,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104433047] [2023-11-06 22:21:16,787 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:21:16,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-11-06 22:21:16,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:21:16,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-11-06 22:21:16,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2023-11-06 22:21:16,790 INFO L87 Difference]: Start difference. First operand 51 states and 53 transitions. Second operand has 34 states, 34 states have (on average 2.1176470588235294) internal successors, (72), 34 states have internal predecessors, (72), 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 22:21:17,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:21:17,185 INFO L93 Difference]: Finished difference Result 111 states and 122 transitions. [2023-11-06 22:21:17,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-11-06 22:21:17,187 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.1176470588235294) internal successors, (72), 34 states have internal predecessors, (72), 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 39 [2023-11-06 22:21:17,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:21:17,189 INFO L225 Difference]: With dead ends: 111 [2023-11-06 22:21:17,189 INFO L226 Difference]: Without dead ends: 91 [2023-11-06 22:21:17,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=659, Invalid=1597, Unknown=0, NotChecked=0, Total=2256 [2023-11-06 22:21:17,192 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 188 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:21:17,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 63 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:21:17,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-11-06 22:21:17,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 83. [2023-11-06 22:21:17,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 79 states have (on average 1.0759493670886076) internal successors, (85), 82 states have internal predecessors, (85), 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 22:21:17,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 85 transitions. [2023-11-06 22:21:17,212 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 85 transitions. Word has length 39 [2023-11-06 22:21:17,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:21:17,212 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 85 transitions. [2023-11-06 22:21:17,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.1176470588235294) internal successors, (72), 34 states have internal predecessors, (72), 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 22:21:17,213 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 85 transitions. [2023-11-06 22:21:17,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-06 22:21:17,216 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:21:17,216 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:21:17,230 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-06 22:21:17,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-06 22:21:17,423 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:21:17,423 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:21:17,423 INFO L85 PathProgramCache]: Analyzing trace with hash -753838418, now seen corresponding path program 3 times [2023-11-06 22:21:17,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:21:17,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245947037] [2023-11-06 22:21:17,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:17,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:21:17,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:21:18,611 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 22:21:18,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:21:18,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245947037] [2023-11-06 22:21:18,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245947037] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:21:18,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592262365] [2023-11-06 22:21:18,612 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-06 22:21:18,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:21:18,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:21:18,615 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:21:18,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-06 22:21:18,753 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-06 22:21:18,753 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:21:18,754 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:21:18,761 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:21:18,850 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-11-06 22:21:18,850 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:21:18,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1592262365] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:21:18,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:21:18,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [33] total 36 [2023-11-06 22:21:18,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177973736] [2023-11-06 22:21:18,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:21:18,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:21:18,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:21:18,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:21:18,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=296, Invalid=964, Unknown=0, NotChecked=0, Total=1260 [2023-11-06 22:21:18,853 INFO L87 Difference]: Start difference. First operand 83 states and 85 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 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 22:21:18,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:21:18,916 INFO L93 Difference]: Finished difference Result 91 states and 93 transitions. [2023-11-06 22:21:18,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:21:18,917 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 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 71 [2023-11-06 22:21:18,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:21:18,923 INFO L225 Difference]: With dead ends: 91 [2023-11-06 22:21:18,923 INFO L226 Difference]: Without dead ends: 90 [2023-11-06 22:21:18,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=301, Invalid=1031, Unknown=0, NotChecked=0, Total=1332 [2023-11-06 22:21:18,926 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 16 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:21:18,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 43 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:21:18,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-11-06 22:21:18,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 82. [2023-11-06 22:21:18,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 79 states have (on average 1.0632911392405062) internal successors, (84), 81 states have internal predecessors, (84), 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 22:21:18,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 84 transitions. [2023-11-06 22:21:18,942 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 84 transitions. Word has length 71 [2023-11-06 22:21:18,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:21:18,943 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 84 transitions. [2023-11-06 22:21:18,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 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 22:21:18,943 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 84 transitions. [2023-11-06 22:21:18,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-06 22:21:18,950 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:21:18,950 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-11-06 22:21:18,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-06 22:21:19,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:21:19,156 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:21:19,157 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:21:19,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1894154414, now seen corresponding path program 1 times [2023-11-06 22:21:19,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:21:19,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557117017] [2023-11-06 22:21:19,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:19,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:21:19,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:21:19,296 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2023-11-06 22:21:19,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:21:19,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557117017] [2023-11-06 22:21:19,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557117017] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:21:19,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:21:19,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:21:19,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666870764] [2023-11-06 22:21:19,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:21:19,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:21:19,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:21:19,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:21:19,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:21:19,300 INFO L87 Difference]: Start difference. First operand 82 states and 84 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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 22:21:19,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:21:19,340 INFO L93 Difference]: Finished difference Result 83 states and 85 transitions. [2023-11-06 22:21:19,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:21:19,341 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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 72 [2023-11-06 22:21:19,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:21:19,344 INFO L225 Difference]: With dead ends: 83 [2023-11-06 22:21:19,344 INFO L226 Difference]: Without dead ends: 82 [2023-11-06 22:21:19,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:21:19,347 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 12 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:21:19,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 28 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:21:19,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2023-11-06 22:21:19,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 78. [2023-11-06 22:21:19,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 76 states have (on average 1.0526315789473684) internal successors, (80), 77 states have internal predecessors, (80), 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 22:21:19,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 80 transitions. [2023-11-06 22:21:19,362 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 80 transitions. Word has length 72 [2023-11-06 22:21:19,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:21:19,362 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 80 transitions. [2023-11-06 22:21:19,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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 22:21:19,362 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 80 transitions. [2023-11-06 22:21:19,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-06 22:21:19,364 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:21:19,364 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:21:19,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-06 22:21:19,365 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:21:19,365 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:21:19,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1288975798, now seen corresponding path program 1 times [2023-11-06 22:21:19,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:21:19,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680249290] [2023-11-06 22:21:19,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:19,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:21:19,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:21:19,581 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-11-06 22:21:19,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:21:19,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680249290] [2023-11-06 22:21:19,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680249290] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:21:19,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1145113974] [2023-11-06 22:21:19,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:19,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:21:19,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:21:19,583 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:21:19,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-06 22:21:19,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:21:19,774 INFO L262 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-06 22:21:19,779 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:21:20,369 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:21:20,369 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:21:21,567 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:21:21,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1145113974] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:21:21,568 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:21:21,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 33, 33] total 66 [2023-11-06 22:21:21,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984381609] [2023-11-06 22:21:21,568 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:21:21,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2023-11-06 22:21:21,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:21:21,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2023-11-06 22:21:21,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1092, Invalid=3198, Unknown=0, NotChecked=0, Total=4290 [2023-11-06 22:21:21,573 INFO L87 Difference]: Start difference. First operand 78 states and 80 transitions. Second operand has 66 states, 66 states have (on average 2.257575757575758) internal successors, (149), 66 states have internal predecessors, (149), 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 22:21:22,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:21:22,701 INFO L93 Difference]: Finished difference Result 172 states and 192 transitions. [2023-11-06 22:21:22,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2023-11-06 22:21:22,702 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 66 states have (on average 2.257575757575758) internal successors, (149), 66 states have internal predecessors, (149), 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 75 [2023-11-06 22:21:22,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:21:22,704 INFO L225 Difference]: With dead ends: 172 [2023-11-06 22:21:22,704 INFO L226 Difference]: Without dead ends: 157 [2023-11-06 22:21:22,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1919 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=2600, Invalid=6712, Unknown=0, NotChecked=0, Total=9312 [2023-11-06 22:21:22,709 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 222 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:21:22,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 97 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-06 22:21:22,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2023-11-06 22:21:22,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 146. [2023-11-06 22:21:22,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 144 states have (on average 1.0277777777777777) internal successors, (148), 145 states have internal predecessors, (148), 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 22:21:22,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 148 transitions. [2023-11-06 22:21:22,723 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 148 transitions. Word has length 75 [2023-11-06 22:21:22,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:21:22,724 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 148 transitions. [2023-11-06 22:21:22,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 2.257575757575758) internal successors, (149), 66 states have internal predecessors, (149), 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 22:21:22,725 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 148 transitions. [2023-11-06 22:21:22,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-06 22:21:22,731 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:21:22,732 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:21:22,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-06 22:21:22,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:21:22,938 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:21:22,938 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:21:22,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1340075662, now seen corresponding path program 2 times [2023-11-06 22:21:22,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:21:22,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256376425] [2023-11-06 22:21:22,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:22,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:21:23,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:21:23,240 INFO L134 CoverageAnalysis]: Checked inductivity of 1897 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1897 trivial. 0 not checked. [2023-11-06 22:21:23,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:21:23,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256376425] [2023-11-06 22:21:23,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256376425] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:21:23,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:21:23,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:21:23,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219011635] [2023-11-06 22:21:23,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:21:23,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:21:23,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:21:23,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:21:23,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:21:23,242 INFO L87 Difference]: Start difference. First operand 146 states and 148 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 22:21:23,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:21:23,286 INFO L93 Difference]: Finished difference Result 154 states and 156 transitions. [2023-11-06 22:21:23,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:21:23,286 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 143 [2023-11-06 22:21:23,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:21:23,288 INFO L225 Difference]: With dead ends: 154 [2023-11-06 22:21:23,289 INFO L226 Difference]: Without dead ends: 152 [2023-11-06 22:21:23,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:21:23,290 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 9 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:21:23,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 32 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:21:23,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2023-11-06 22:21:23,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2023-11-06 22:21:23,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 150 states have (on average 1.0266666666666666) internal successors, (154), 151 states have internal predecessors, (154), 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 22:21:23,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 154 transitions. [2023-11-06 22:21:23,299 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 154 transitions. Word has length 143 [2023-11-06 22:21:23,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:21:23,299 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 154 transitions. [2023-11-06 22:21:23,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 22:21:23,300 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 154 transitions. [2023-11-06 22:21:23,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-11-06 22:21:23,301 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:21:23,302 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:21:23,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-06 22:21:23,302 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:21:23,302 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:21:23,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1674974816, now seen corresponding path program 1 times [2023-11-06 22:21:23,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:21:23,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043216631] [2023-11-06 22:21:23,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:23,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:21:23,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:21:27,044 INFO L134 CoverageAnalysis]: Checked inductivity of 1902 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-06 22:21:27,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:21:27,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043216631] [2023-11-06 22:21:27,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043216631] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:21:27,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [311280668] [2023-11-06 22:21:27,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:27,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:21:27,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:21:27,046 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:21:27,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-06 22:21:27,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:21:27,345 INFO L262 TraceCheckSpWp]: Trace formula consists of 717 conjuncts, 64 conjunts are in the unsatisfiable core [2023-11-06 22:21:27,358 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:21:27,632 INFO L134 CoverageAnalysis]: Checked inductivity of 1902 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-06 22:21:27,632 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:21:31,920 INFO L134 CoverageAnalysis]: Checked inductivity of 1902 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-06 22:21:31,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [311280668] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:21:31,921 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:21:31,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 130 [2023-11-06 22:21:31,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751712813] [2023-11-06 22:21:31,921 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:21:31,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2023-11-06 22:21:31,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:21:31,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2023-11-06 22:21:31,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4290, Invalid=12480, Unknown=0, NotChecked=0, Total=16770 [2023-11-06 22:21:31,933 INFO L87 Difference]: Start difference. First operand 152 states and 154 transitions. Second operand has 130 states, 130 states have (on average 2.0923076923076924) internal successors, (272), 130 states have internal predecessors, (272), 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 22:21:35,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:21:35,466 INFO L93 Difference]: Finished difference Result 305 states and 340 transitions. [2023-11-06 22:21:35,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2023-11-06 22:21:35,467 INFO L78 Accepts]: Start accepts. Automaton has has 130 states, 130 states have (on average 2.0923076923076924) internal successors, (272), 130 states have internal predecessors, (272), 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 149 [2023-11-06 22:21:35,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:21:35,470 INFO L225 Difference]: With dead ends: 305 [2023-11-06 22:21:35,470 INFO L226 Difference]: Without dead ends: 280 [2023-11-06 22:21:35,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8087 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=10307, Invalid=26365, Unknown=0, NotChecked=0, Total=36672 [2023-11-06 22:21:35,482 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 614 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 614 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:21:35,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [614 Valid, 98 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-06 22:21:35,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2023-11-06 22:21:35,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 280. [2023-11-06 22:21:35,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 278 states have (on average 1.014388489208633) internal successors, (282), 279 states have internal predecessors, (282), 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 22:21:35,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 282 transitions. [2023-11-06 22:21:35,493 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 282 transitions. Word has length 149 [2023-11-06 22:21:35,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:21:35,494 INFO L495 AbstractCegarLoop]: Abstraction has 280 states and 282 transitions. [2023-11-06 22:21:35,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 2.0923076923076924) internal successors, (272), 130 states have internal predecessors, (272), 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 22:21:35,494 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 282 transitions. [2023-11-06 22:21:35,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2023-11-06 22:21:35,498 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:21:35,498 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:21:35,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-06 22:21:35,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:21:35,705 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:21:35,705 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:21:35,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1626528032, now seen corresponding path program 2 times [2023-11-06 22:21:35,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:21:35,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282959828] [2023-11-06 22:21:35,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:35,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:21:35,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:21:47,069 INFO L134 CoverageAnalysis]: Checked inductivity of 7886 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-06 22:21:47,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:21:47,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282959828] [2023-11-06 22:21:47,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282959828] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:21:47,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376458902] [2023-11-06 22:21:47,070 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:21:47,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:21:47,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:21:47,071 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:21:47,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-06 22:21:47,516 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 22:21:47,516 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:21:47,525 INFO L262 TraceCheckSpWp]: Trace formula consists of 1325 conjuncts, 128 conjunts are in the unsatisfiable core [2023-11-06 22:21:47,542 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:21:48,021 INFO L134 CoverageAnalysis]: Checked inductivity of 7886 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-06 22:21:48,021 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:22:02,056 INFO L134 CoverageAnalysis]: Checked inductivity of 7886 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-06 22:22:02,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [376458902] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:22:02,056 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:22:02,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [129, 129, 129] total 258 [2023-11-06 22:22:02,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294595765] [2023-11-06 22:22:02,057 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:22:02,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 258 states [2023-11-06 22:22:02,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:22:02,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 258 interpolants. [2023-11-06 22:22:02,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16770, Invalid=49536, Unknown=0, NotChecked=0, Total=66306 [2023-11-06 22:22:02,073 INFO L87 Difference]: Start difference. First operand 280 states and 282 transitions. Second operand has 258 states, 258 states have (on average 2.046511627906977) internal successors, (528), 258 states have internal predecessors, (528), 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 22:22:15,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:22:15,180 INFO L93 Difference]: Finished difference Result 561 states and 628 transitions. [2023-11-06 22:22:15,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 256 states. [2023-11-06 22:22:15,181 INFO L78 Accepts]: Start accepts. Automaton has has 258 states, 258 states have (on average 2.046511627906977) internal successors, (528), 258 states have internal predecessors, (528), 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 277 [2023-11-06 22:22:15,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:22:15,184 INFO L225 Difference]: With dead ends: 561 [2023-11-06 22:22:15,184 INFO L226 Difference]: Without dead ends: 536 [2023-11-06 22:22:15,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 807 GetRequests, 425 SyntacticMatches, 0 SemanticMatches, 382 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32567 ImplicationChecksByTransitivity, 28.2s TimeCoverageRelationStatistics Valid=41091, Invalid=105981, Unknown=0, NotChecked=0, Total=147072 [2023-11-06 22:22:15,194 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 1546 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 833 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1546 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-06 22:22:15,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1546 Valid, 116 Invalid, 875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 833 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-06 22:22:15,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2023-11-06 22:22:15,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2023-11-06 22:22:15,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 534 states have (on average 1.0074906367041199) internal successors, (538), 535 states have internal predecessors, (538), 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 22:22:15,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 538 transitions. [2023-11-06 22:22:15,213 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 538 transitions. Word has length 277 [2023-11-06 22:22:15,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:22:15,214 INFO L495 AbstractCegarLoop]: Abstraction has 536 states and 538 transitions. [2023-11-06 22:22:15,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 258 states, 258 states have (on average 2.046511627906977) internal successors, (528), 258 states have internal predecessors, (528), 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 22:22:15,215 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 538 transitions. [2023-11-06 22:22:15,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2023-11-06 22:22:15,226 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:22:15,226 INFO L195 NwaCegarLoop]: trace histogram [127, 127, 127, 127, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:22:15,234 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-06 22:22:15,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-06 22:22:15,434 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:22:15,434 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:22:15,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1327282208, now seen corresponding path program 3 times [2023-11-06 22:22:15,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:22:15,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084716458] [2023-11-06 22:22:15,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:22:15,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:22:16,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:58,288 INFO L134 CoverageAnalysis]: Checked inductivity of 32142 backedges. 0 proven. 32131 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-06 22:22:58,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:22:58,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084716458] [2023-11-06 22:22:58,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084716458] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:22:58,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [647421253] [2023-11-06 22:22:58,289 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-06 22:22:58,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:22:58,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:22:58,292 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:22:58,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-06 22:22:58,728 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-06 22:22:58,728 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:22:58,730 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:22:58,738 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:22:59,141 INFO L134 CoverageAnalysis]: Checked inductivity of 32142 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 32137 trivial. 0 not checked. [2023-11-06 22:22:59,142 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:22:59,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [647421253] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:22:59,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:22:59,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [257] total 260 [2023-11-06 22:22:59,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114794016] [2023-11-06 22:22:59,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:22:59,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:22:59,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:22:59,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:22:59,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16648, Invalid=50692, Unknown=0, NotChecked=0, Total=67340 [2023-11-06 22:22:59,153 INFO L87 Difference]: Start difference. First operand 536 states and 538 transitions. Second operand has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 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 22:22:59,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:22:59,344 INFO L93 Difference]: Finished difference Result 536 states and 538 transitions. [2023-11-06 22:22:59,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:22:59,344 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 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 533 [2023-11-06 22:22:59,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:22:59,348 INFO L225 Difference]: With dead ends: 536 [2023-11-06 22:22:59,348 INFO L226 Difference]: Without dead ends: 535 [2023-11-06 22:22:59,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 791 GetRequests, 532 SyntacticMatches, 0 SemanticMatches, 259 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16761 ImplicationChecksByTransitivity, 20.6s TimeCoverageRelationStatistics Valid=16653, Invalid=51207, Unknown=0, NotChecked=0, Total=67860 [2023-11-06 22:22:59,357 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 11 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:22:59,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 36 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:22:59,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2023-11-06 22:22:59,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 535. [2023-11-06 22:22:59,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 534 states have (on average 1.0056179775280898) internal successors, (537), 534 states have internal predecessors, (537), 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 22:22:59,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 537 transitions. [2023-11-06 22:22:59,376 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 537 transitions. Word has length 533 [2023-11-06 22:22:59,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:22:59,377 INFO L495 AbstractCegarLoop]: Abstraction has 535 states and 537 transitions. [2023-11-06 22:22:59,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 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 22:22:59,378 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 537 transitions. [2023-11-06 22:22:59,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 535 [2023-11-06 22:22:59,390 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:22:59,391 INFO L195 NwaCegarLoop]: trace histogram [127, 127, 127, 127, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:22:59,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-06 22:22:59,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-06 22:22:59,597 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:22:59,597 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:22:59,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1803924414, now seen corresponding path program 1 times [2023-11-06 22:22:59,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:22:59,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883368968] [2023-11-06 22:22:59,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:22:59,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:22:59,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:00,218 INFO L134 CoverageAnalysis]: Checked inductivity of 32143 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 32138 trivial. 0 not checked. [2023-11-06 22:23:00,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:23:00,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883368968] [2023-11-06 22:23:00,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883368968] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:23:00,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:23:00,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:23:00,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878709883] [2023-11-06 22:23:00,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:23:00,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:23:00,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:23:00,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:23:00,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:23:00,224 INFO L87 Difference]: Start difference. First operand 535 states and 537 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 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 22:23:00,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:23:00,261 INFO L93 Difference]: Finished difference Result 535 states and 537 transitions. [2023-11-06 22:23:00,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:23:00,262 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 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 534 [2023-11-06 22:23:00,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:23:00,263 INFO L225 Difference]: With dead ends: 535 [2023-11-06 22:23:00,263 INFO L226 Difference]: Without dead ends: 0 [2023-11-06 22:23:00,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:23:00,270 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 8 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:23:00,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 24 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:23:00,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-06 22:23:00,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-06 22:23:00,272 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 22:23:00,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-06 22:23:00,272 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 534 [2023-11-06 22:23:00,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:23:00,272 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:23:00,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 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 22:23:00,273 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-06 22:23:00,273 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-06 22:23:00,275 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2023-11-06 22:23:00,276 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2023-11-06 22:23:00,277 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2023-11-06 22:23:00,277 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2023-11-06 22:23:00,278 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2023-11-06 22:23:00,278 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2023-11-06 22:23:00,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-06 22:23:00,280 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-06 22:23:00,567 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2023-11-06 22:23:00,568 INFO L899 garLoopResultBuilder]: For program point L15(line 15) no Hoare annotation was computed. [2023-11-06 22:23:00,568 INFO L899 garLoopResultBuilder]: For program point L15-1(line 15) no Hoare annotation was computed. [2023-11-06 22:23:00,568 INFO L899 garLoopResultBuilder]: For program point L15-3(line 15) no Hoare annotation was computed. [2023-11-06 22:23:00,568 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 18 33) the Hoare annotation is: true [2023-11-06 22:23:00,568 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-06 22:23:00,569 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2023-11-06 22:23:00,569 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2023-11-06 22:23:00,569 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-06 22:23:00,569 INFO L899 garLoopResultBuilder]: For program point L28-2(lines 28 31) no Hoare annotation was computed. [2023-11-06 22:23:00,570 INFO L899 garLoopResultBuilder]: For program point L28-3(line 28) no Hoare annotation was computed. [2023-11-06 22:23:00,570 INFO L899 garLoopResultBuilder]: For program point L28-4(line 28) no Hoare annotation was computed. [2023-11-06 22:23:00,570 INFO L895 garLoopResultBuilder]: At program point L28-5(lines 28 31) the Hoare annotation is: (< 0 (+ 2147483649 ~i~0)) [2023-11-06 22:23:00,570 INFO L899 garLoopResultBuilder]: For program point L24-2(lines 24 27) no Hoare annotation was computed. [2023-11-06 22:23:00,570 INFO L899 garLoopResultBuilder]: For program point L28-6(lines 28 31) no Hoare annotation was computed. [2023-11-06 22:23:00,570 INFO L899 garLoopResultBuilder]: For program point L24-3(line 24) no Hoare annotation was computed. [2023-11-06 22:23:00,571 INFO L899 garLoopResultBuilder]: For program point L24-4(line 24) no Hoare annotation was computed. [2023-11-06 22:23:00,571 INFO L895 garLoopResultBuilder]: At program point L24-5(lines 24 27) the Hoare annotation is: (< 0 (+ 2147483649 ~i~0)) [2023-11-06 22:23:00,571 INFO L899 garLoopResultBuilder]: For program point L20-2(lines 20 23) no Hoare annotation was computed. [2023-11-06 22:23:00,571 INFO L899 garLoopResultBuilder]: For program point L24-6(lines 24 27) no Hoare annotation was computed. [2023-11-06 22:23:00,571 INFO L899 garLoopResultBuilder]: For program point L20-3(line 20) no Hoare annotation was computed. [2023-11-06 22:23:00,571 INFO L899 garLoopResultBuilder]: For program point L20-4(line 20) no Hoare annotation was computed. [2023-11-06 22:23:00,572 INFO L895 garLoopResultBuilder]: At program point L20-5(lines 20 23) the Hoare annotation is: (or (= ~i~0 0) (< 0 ~i~0)) [2023-11-06 22:23:00,572 INFO L899 garLoopResultBuilder]: For program point L20-6(lines 20 23) no Hoare annotation was computed. [2023-11-06 22:23:00,572 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2023-11-06 22:23:00,572 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-06 22:23:00,572 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2023-11-06 22:23:00,572 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-06 22:23:00,573 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2023-11-06 22:23:00,573 INFO L899 garLoopResultBuilder]: For program point L14(line 14) no Hoare annotation was computed. [2023-11-06 22:23:00,573 INFO L899 garLoopResultBuilder]: For program point L14-2(line 14) no Hoare annotation was computed. [2023-11-06 22:23:00,576 INFO L445 BasicCegarLoop]: Path program histogram: [3, 3, 2, 2, 1, 1, 1, 1, 1] [2023-11-06 22:23:00,578 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:23:00,590 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:23:00 BoogieIcfgContainer [2023-11-06 22:23:00,590 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:23:00,591 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:23:00,591 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:23:00,592 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:23:00,593 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:21:12" (3/4) ... [2023-11-06 22:23:00,595 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 22:23:00,605 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-06 22:23:00,606 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-06 22:23:00,606 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 22:23:00,606 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 22:23:00,684 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:23:00,684 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 22:23:00,685 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:23:00,685 INFO L158 Benchmark]: Toolchain (without parser) took 109140.24ms. Allocated memory was 136.3MB in the beginning and 2.0GB in the end (delta: 1.9GB). Free memory was 104.9MB in the beginning and 1.7GB in the end (delta: -1.6GB). Peak memory consumption was 266.9MB. Max. memory is 16.1GB. [2023-11-06 22:23:00,686 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 113.2MB. Free memory is still 73.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:23:00,686 INFO L158 Benchmark]: CACSL2BoogieTranslator took 234.08ms. Allocated memory is still 136.3MB. Free memory was 104.9MB in the beginning and 94.1MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 22:23:00,688 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.63ms. Allocated memory is still 136.3MB. Free memory was 94.1MB in the beginning and 92.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:23:00,688 INFO L158 Benchmark]: Boogie Preprocessor took 24.98ms. Allocated memory is still 136.3MB. Free memory was 92.8MB in the beginning and 91.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:23:00,689 INFO L158 Benchmark]: RCFGBuilder took 351.88ms. Allocated memory is still 136.3MB. Free memory was 91.5MB in the beginning and 80.2MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 22:23:00,689 INFO L158 Benchmark]: TraceAbstraction took 108392.83ms. Allocated memory was 136.3MB in the beginning and 2.0GB in the end (delta: 1.9GB). Free memory was 79.4MB in the beginning and 1.7GB in the end (delta: -1.7GB). Peak memory consumption was 237.5MB. Max. memory is 16.1GB. [2023-11-06 22:23:00,690 INFO L158 Benchmark]: Witness Printer took 93.51ms. Allocated memory is still 2.0GB. Free memory was 1.7GB in the beginning and 1.7GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:23:00,695 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 113.2MB. Free memory is still 73.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 234.08ms. Allocated memory is still 136.3MB. Free memory was 104.9MB in the beginning and 94.1MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.63ms. Allocated memory is still 136.3MB. Free memory was 94.1MB in the beginning and 92.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.98ms. Allocated memory is still 136.3MB. Free memory was 92.8MB in the beginning and 91.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 351.88ms. Allocated memory is still 136.3MB. Free memory was 91.5MB in the beginning and 80.2MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 108392.83ms. Allocated memory was 136.3MB in the beginning and 2.0GB in the end (delta: 1.9GB). Free memory was 79.4MB in the beginning and 1.7GB in the end (delta: -1.7GB). Peak memory consumption was 237.5MB. Max. memory is 16.1GB. * Witness Printer took 93.51ms. Allocated memory is still 2.0GB. Free memory was 1.7GB in the beginning and 1.7GB in the end (delta: 4.2MB). 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: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: 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 - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: 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, 31 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 108.3s, OverallIterations: 15, TraceHistogramMax: 127, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.1s, AutomataDifference: 19.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2842 SdHoareTripleChecker+Valid, 2.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2842 mSDsluCounter, 874 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 650 mSDsCounter, 171 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2088 IncrementalHoareTripleChecker+Invalid, 2259 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 171 mSolverCounterUnsat, 224 mSDtfsCounter, 2088 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2542 GetRequests, 1477 SyntacticMatches, 0 SemanticMatches, 1065 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60233 ImplicationChecksByTransitivity, 60.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=536occurred in iteration=13, InterpolantAutomatonStates: 543, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 15 MinimizatonAttempts, 90 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 137 NumberOfFragments, 18 HoareAnnotationTreeSize, 4 FomulaSimplifications, 1109 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 82.2s InterpolantComputationTime, 3157 NumberOfCodeBlocks, 2593 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 3701 ConstructedInterpolants, 0 QuantifiedInterpolants, 7757 SizeOfPredicates, 124 NumberOfNonLiveVariables, 3158 ConjunctsInSsa, 265 ConjunctsInUnsatCore, 30 InterpolantComputations, 9 PerfectInterpolantSequences, 67616/130675 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 6 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: (0 < (2147483649 + i)) - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: ((i == 0) || (0 < i)) - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: (0 < (2147483649 + i)) RESULT: Ultimate proved your program to be correct! [2023-11-06 22:23:00,733 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30fa48b4-513a-4519-b387-3c237fd0ff79/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